Information technology companies make the hardware, chips, software and services that businesses, governments and households use to compute, store and move data. This list ranks the 50 largest IT companies headquartered and incorporated in the United States by revenue for their latest full fiscal year, taken from the annual reports on Form 10-K that they file with the US Securities and Exchange Commission. The scope covers software and cloud platforms, IT services, computers, storage and networking equipment, semiconductors and chipmaking equipment, electronic components and technology distribution.
Apple leads with fiscal 2026 net sales of US$478.8 billion, followed by Microsoft (US$331.8 billion), NVIDIA (US$215.9 billion), Micron Technology (US$133.2 billion) and Dell Technologies (US$113.5 billion). Those five account for about 52% of the US$2.45 trillion combined revenue of the 50 companies. Fiftieth place goes to NetApp with US$6.9 billion.
Amazon, Alphabet and Meta Platforms, which run some of the largest cloud and computing operations in the world, are not ranked because most of their revenue comes from retail and advertising; the reasons and their figures are set out in the methodology. Accenture, often listed as an American IT company, is excluded because it is incorporated and headquartered in Ireland.
Contents
- Overview
- Market context
- How the ranking was built
- Methodology
- The list
- Full ranking table
- By country
- Notable changes in 2026
- Alternatives by use case
- Frequently asked questions
- See also
Overview
The term IT company is used loosely. In this list it means a business whose main revenue comes from one of four groups of activity. The first is software and cloud services: operating systems, databases, business applications, security software and infrastructure rented by the hour. The second is IT services, meaning consulting, systems integration and the outsourced running of data centres and networks. The third is technology hardware: PCs, phones, servers, storage, networking and communications equipment, together with electronic components, contract electronics manufacturing and the distributors that move these products to resellers. The fourth is semiconductors and the equipment used to make them.
These boundaries follow the information technology sector as defined in widely used industry classifications, which separate it from interactive media and internet retail (where Alphabet, Meta and Amazon are usually placed), from telecommunications carriers and from payment networks. Readers looking for narrower rankings will find separate lists on this site for IT services companies, software development companies, cloud consulting companies and IT outsourcing companies. Those lists include non-US firms and, for IT services, count segment revenue inside larger groups.
The ranking is dominated by hardware and chips. Eight hardware makers account for US$747.9 billion of combined revenue, twelve software and cloud companies for US$609.9 billion, and ten semiconductor designers and manufacturers for US$600.8 billion. Six distributors and resellers (TD SYNNEX, Ingram Micro, Arrow, Avnet, CDW and Insight) together report US$204.2 billion, although their low margins mean that revenue overstates their economic weight. Only three companies are pure IT services providers: Cognizant, Kyndryl and DXC Technology.
Market context
Combined revenue of the 50 companies rose by about 23% compared with their previous fiscal years, from roughly US$1.99 trillion to US$2.45 trillion. Most of the increase came from spending on artificial intelligence infrastructure. NVIDIA's revenue grew 65%, Super Micro Computer's net sales 78% and Marvell's revenue 42%. Memory makers gained most of all: Micron's revenue more than tripled, with DRAM alone bringing in US$100.68 billion, and Sandisk's revenue rose 175% after a 437% jump in data-centre sales. Western Digital, now a hard-drive-only company, grew 36% on cloud demand.
Software growth was steadier. Microsoft's revenue rose 18%, with Microsoft Cloud revenue reaching US$214.4 billion; Oracle grew 17% and reported remaining performance obligations of US$638 billion; ServiceNow grew 21% and Palo Alto Networks 24.5%. At the other end, six companies reported growth below 4% or a decline: HP Inc. (+3.2%), Kyndryl (+0.2%), Intel (−0.5%), DXC Technology (−1.8%), Qualcomm (−2.6%) and Insight Enterprises (−5.2%).
Consolidation
Large acquisitions continued through 2025 and 2026. Hewlett Packard Enterprise completed its purchase of Juniper Networks on 2 July 2025. Synopsys closed its acquisition of Ansys on 17 July 2025 for about US$34.9 billion. Salesforce bought Informatica for about US$9.6 billion in November 2025. Amphenol completed the purchase of the Connectivity and Cable Solutions business from Vistance (formerly CommScope) for about US$10.5 billion on 9 January 2026, and Palo Alto Networks completed its acquisition of CyberArk on 11 February 2026. In hardware manufacturing, AMD bought ZT Systems in March 2025 and Sanmina took over its manufacturing operations on 27 October 2025.
Geography
Twenty-six of the 50 companies have their head office in California, most of them in Silicon Valley. Texas has four (Dell, Oracle, Hewlett Packard Enterprise and Texas Instruments), and New York has three (IBM, Corning and Kyndryl). The figures cover global revenue: a large share of the hardware and semiconductor companies' sales and staff is in Asia. Sandisk, for instance, has 74% of its employees in Asia-Pacific, and Amkor, which just misses the list, has 95% of its staff there.
How the ranking was built
Candidates were identified from the SEC's index of registrants and from industry knowledge, then checked one by one against their EDGAR records. For every candidate the compiler downloaded the XBRL company facts for its most recent Form 10-K and the 10-K document itself. Revenue is the annual figure tagged as total revenues or revenue from contracts with customers in that 10-K; the prior-year comparison comes from the same filing. Headquarters, state of incorporation and listing come from the 10-K cover page and EDGAR registrant record; employee numbers and corporate history come from the 10-K text.
Companies were then filtered by the inclusion rule described in the methodology below and sorted by revenue in US dollars. All 50 companies report in US dollars, so no currency conversion was needed. Fiscal years differ: Apple's ended in September 2026, Microsoft's in June 2026, NVIDIA's in January 2026 and IBM's in December 2025. Each company is ranked on the latest 10-K on file at 13 November 2026, which means some figures are almost a year older than others. Sanmina's fiscal 2026 report, for example, had not been filed, so its fiscal 2025 figure is used.
No figure on this page is estimated. Two companies, IBM and Jabil, do not state a total headcount in their 10-K and are shown without one.
Methodology
Metric. Total revenue (net sales) for the latest full fiscal year reported in a Form 10-K filed with the SEC on or before 13 November 2026, in US dollars, as tagged in the filing's XBRL data. Revenue is measured before cost of sales, so distributors and resellers, whose margins are thin, rank higher than their profits would suggest.
US company rule. A company qualifies only if its principal executive offices, as stated on the 10-K cover, are in the United States and it is incorporated in a US state. This excludes Accenture (Ireland; fiscal 2026 revenue US$74,183 million), Flex (incorporated in Singapore, although EDGAR lists a business address in Austin, Texas; US$27,914 million), TE Connectivity plc (business address in Galway, Ireland; US$19,885 million) and Seagate Technology Holdings plc (business address in Singapore; US$12,195 million). Private companies that file no 10-K are also excluded.
IT company rule. A company is included when software and cloud services, IT services, technology hardware and equipment (including communications equipment, electronic components, contract electronics manufacturing and technology distribution) or semiconductors and semiconductor equipment provide the main part of its revenue as described in Item 1 of its 10-K. Amazon (2025 revenue US$716,924 million), Alphabet (US$402,836 million) and Meta Platforms (US$200,966 million) are excluded because online retail and advertising are their main businesses, even though Amazon Web Services and Google Cloud are among the largest cloud platforms. If they were counted, Amazon would rank first, Alphabet third and Meta sixth. Government technology contractors such as Leidos (US$17,174 million) and Booz Allen Hamilton (US$11,217 million) are excluded because much of their work is engineering, mission support and consulting rather than commercial IT. Concentrix (US$9,826 million) is excluded as a customer-experience outsourcing business. Payment networks and payroll processors are also outside the scope.
Ordering. Strictly by the revenue figure, highest first. Fortinet (US$6,800 million), Amkor Technology (US$6,708 million) and Gartner (US$6,497 million) would be the next three companies.
The list
1
Designer of the iPhone, Mac, iPad and wearables, plus a large services business
Best for: Hardware and devices
Apple designs, manufactures and markets smartphones, personal computers, tablets, wearables and accessories, and sells related services, according to its 10-K for the fiscal year ended 26 September 2026. Net sales reached US$478,834 million, up 15% on fiscal 2025, which makes it the largest US-headquartered company in this ranking by a wide margin. Services contributed US$123,301 million, up 13%, mainly on higher advertising and cloud services sales. The company is incorporated in California, has its head office at Apple Park in Cupertino and is listed on Nasdaq. It reported approximately 167,000 full-time equivalent employees at the fiscal year end. Product revenue still depends heavily on the iPhone, which the 10-K says grew on higher sales of Pro models.
Services
- iPhone smartphones
- Mac personal computers
- iPad tablets
- Wearables, home and accessories
- Services: App Store, advertising, cloud, payments
- Revenue (FY2026, to 26 Sep 2026)
- US$478,834m
- Revenue change vs prior year
- +15.1% (from US$416,161m)
- Employees
- c. 167,000 FTE (26 Sep 2026)
- Headquarters
- Cupertino, California, US
- Listed on
- Nasdaq
- Core services
- iPhone smartphones; Mac personal computers; iPad tablets
2
Largest US software company; Azure cloud, Microsoft 365, Windows and gaming
Best for: Software and cloud
Microsoft is the largest software and cloud company headquartered in the United States. Its 10-K for the fiscal year ended 30 June 2026 reports revenue of US$331,839 million, up 18% on the previous year. The company says Microsoft Cloud revenue rose 27% to US$214.4 billion and that Azure and other cloud services revenue grew 41%. Other businesses include Microsoft 365, Windows, LinkedIn, Dynamics 365 business applications and gaming, which includes Activision Blizzard. Microsoft is incorporated in Washington State, headquartered in Redmond and listed on Nasdaq. It employed approximately 223,000 people full-time on 30 June 2026, about 121,000 of them in the United States.
Services
- Azure cloud infrastructure and AI services
- Microsoft 365 and Office
- Windows and Surface devices
- Dynamics 365 business applications
- LinkedIn
- Gaming, including Activision Blizzard
- Revenue (FY2026, to 30 Jun 2026)
- US$331,839m
- Revenue change vs prior year
- +17.8% (from US$281,724m)
- Employees
- c. 223,000 full-time (30 Jun 2026)
- Headquarters
- Redmond, Washington, US
- Listed on
- Nasdaq
- Core services
- Azure cloud infrastructure and AI services; Microsoft 365 and Office; Windows and Surface devices
3
N
Largest chip company by revenue; GPUs and data-centre AI systems
Best for: Semiconductors
NVIDIA describes itself as a data-centre-scale AI infrastructure company built on accelerated computing. Its graphics processors, networking hardware, systems and the CUDA software platform are used for training and running AI models, scientific computing, robotics and graphics. Revenue for fiscal 2026, which ended on 25 January 2026, was US$215.9 billion, up 65% from a year earlier, making NVIDIA the largest semiconductor company in this ranking. The 10-K notes that the company was incorporated in California in April 1993 and is now a Delaware corporation headquartered in Santa Clara, California; its shares trade on Nasdaq. At the fiscal year end it had approximately 42,000 employees in 38 countries, of whom 31,000 worked in research and development.
Services
- Data-centre GPUs and accelerated computing systems
- Networking (InfiniBand and Ethernet)
- CUDA software platform and libraries
- Gaming and professional visualisation GPUs
- Automotive and robotics platforms
- Revenue (FY2026, to 25 Jan 2026)
- US$215,938m
- Revenue change vs prior year
- +65.5% (from US$130,497m)
- Employees
- c. 42,000 (end of FY2026)
- Headquarters
- Santa Clara, California, US
- Founded
- 1993 (incorporated in California)
- Listed on
- Nasdaq
- Core services
- Data-centre GPUs and accelerated computing systems; Networking (InfiniBand and Ethernet); CUDA software platform and libraries
4
Memory and storage chipmaker; DRAM, high-bandwidth memory and NAND
Best for: Semiconductors
Micron Technology makes DRAM, NAND and NOR memory and storage products, which it manufactures mainly in its own facilities. Its fiscal 2026, which ended on 3 September 2026, produced revenue of US$133,188 million, more than three times the US$37,378 million of fiscal 2025. The 10-K attributes US$100.68 billion of that to DRAM and US$31.79 billion to NAND, reflecting the sharp rise in demand and prices for memory used in AI data centres. Micron is headquartered in Boise, Idaho, is incorporated in Delaware and is listed on Nasdaq. It reported approximately 61,000 employees, located primarily in Asia, North America and Europe. Memory is a cyclical market, and the size of the fiscal 2026 increase moved Micron from outside the top ten into fourth place.
Services
- DRAM, including high-bandwidth memory for AI
- NAND flash and solid-state drives
- NOR flash
- Memory for data centre, PC, mobile and automotive markets
- Revenue (FY2026, to 3 Sep 2026)
- US$133,188m
- Revenue change vs prior year
- +256.3% (from US$37,378m)
- Employees
- c. 61,000 (3 Sep 2026)
- Headquarters
- Boise, Idaho, US
- Listed on
- Nasdaq
- Core services
- DRAM, including high-bandwidth memory for AI; NAND flash and solid-state drives; NOR flash
5
PCs, servers, storage and networking for businesses and consumers
Best for: Hardware and devices
Dell Technologies sells client devices and peripherals through its Client Solutions Group and servers, networking and storage through its Infrastructure Solutions Group (ISG). Revenue for fiscal 2026, which ended on 30 January 2026, was US$113,538 million, up 19% on the previous year. The 10-K says demand for AI-optimised and traditional servers increased ISG revenue and shifted the mix of the business towards infrastructure. Dell operates in more than 170 countries, is incorporated in Delaware, has its head office in Round Rock, Texas, and is listed on the New York Stock Exchange. It had approximately 97,000 employees at the fiscal year end.
Services
- Commercial and consumer PCs and peripherals
- AI-optimised and traditional servers
- Storage systems
- Networking
- Support and deployment services, financing
- Revenue (FY2026, to 30 Jan 2026)
- US$113,538m
- Revenue change vs prior year
- +18.8% (from US$95,567m)
- Employees
- c. 97,000 (30 Jan 2026)
- Headquarters
- Round Rock, Texas, US
- Listed on
- New York Stock Exchange
- Core services
- Commercial and consumer PCs and peripherals; AI-optimised and traditional servers; Storage systems
6
Hybrid cloud and AI software, consulting and mainframe infrastructure
Best for: Software and cloud
International Business Machines was incorporated in New York on 16 June 1911 as the Computing-Tabulating-Recording Co. and adopted its current name in 1924, according to its 10-K. Today it sells software (including Red Hat and, since its acquisition, HashiCorp), consulting services and infrastructure (servers and storage), organised around hybrid cloud and artificial intelligence. Revenue for 2025 was US$67,535 million, up 7.6% on 2024, which places IBM sixth. The company is headquartered in Armonk, New York, and listed on the New York Stock Exchange. Its 10-K does not state a group headcount; that figure is published separately in the annual report. IBM's infrastructure services unit was spun off as Kyndryl in 2021 and appears separately in this list.
Services
- Software: Red Hat, automation, data and AI, security
- IBM Consulting
- Infrastructure: mainframe and Power servers
- Storage and infrastructure support
- Financing
- Revenue (2025, to 31 Dec 2025)
- US$67,535m
- Revenue change vs prior year
- +7.6% (from US$62,753m)
- Headquarters
- Armonk, New York, US
- Founded
- 1911
- Listed on
- New York Stock Exchange
- Core services
- Software: Red Hat, automation, data and AI, security; IBM Consulting; Infrastructure: mainframe and Power servers
7
O
Database software, enterprise applications and Oracle Cloud Infrastructure
Best for: Software and cloud
Oracle provides enterprise applications and infrastructure software and services, deployed in its own cloud, on customers' premises or in other companies' public clouds. Revenue for fiscal 2026, which ended on 31 May 2026, was US$67,357 million, up 17%. Cloud infrastructure has become its fastest-growing business: the 10-K reports that infrastructure accounted for 53% of total cloud revenue in fiscal 2026, against 35% two years earlier. Remaining performance obligations, a measure of contracted revenue not yet recognised, rose to US$638 billion at 31 May 2026 from US$138 billion a year earlier. Oracle is incorporated in Delaware, headquartered in Austin, Texas, and listed on the New York Stock Exchange. It employed approximately 141,000 full-time staff, about 49,000 of them in the United States.
Services
- Oracle Database and Exadata
- Oracle Cloud Infrastructure (OCI)
- Fusion and NetSuite cloud applications
- Oracle Health
- Multicloud database services
- Revenue (FY2026, to 31 May 2026)
- US$67,357m
- Revenue change vs prior year
- +17.3% (from US$57,399m)
- Employees
- c. 141,000 full-time (31 May 2026)
- Headquarters
- Austin, Texas, US
- Listed on
- New York Stock Exchange
- Core services
- Oracle Database and Exadata; Oracle Cloud Infrastructure (OCI); Fusion and NetSuite cloud applications
8
Semiconductors for networking and AI plus VMware infrastructure software
Best for: Semiconductors
Broadcom designs and supplies semiconductors and infrastructure software. Its 10-K traces the company's origins to AT&T/Bell Labs, Lucent and Hewlett-Packard and lists the acquisitions that built it, including LSI, Broadcom Corporation, Brocade, CA, Symantec's enterprise security business and VMware. Revenue for fiscal 2025, which ended on 2 November 2025, was US$63,887 million, up 24% on fiscal 2024. The semiconductor side includes custom AI accelerators (XPUs) and networking chips, while VMware anchors the software segment. Broadcom is incorporated in Delaware, headquartered in Palo Alto, California, and listed on Nasdaq. It had approximately 33,000 employees at the fiscal year end, 57% of them in research and development roles.
Services
- Custom AI accelerators and data-centre networking chips
- Broadband, wireless and storage semiconductors
- VMware Cloud Foundation
- Mainframe, distributed and cybersecurity software
- Revenue (FY2025, to 2 Nov 2025)
- US$63,887m
- Revenue change vs prior year
- +23.9% (from US$51,574m)
- Employees
- c. 33,000 (2 Nov 2025)
- Headquarters
- Palo Alto, California, US
- Listed on
- Nasdaq
- Core services
- Custom AI accelerators and data-centre networking chips; Broadband, wireless and storage semiconductors; VMware Cloud Foundation
9
CS
Networking, security, collaboration and observability (Splunk)
Best for: Networking and communications equipment
Cisco designs and sells networking hardware, software and services, and groups its products into networking, security, collaboration and observability. Its observability and security business was enlarged by the acquisition of Splunk, completed on 18 March 2024. Revenue for fiscal 2026, which ended on 25 July 2026, was US$63,325 million, up 12% on fiscal 2025. The company was incorporated in California in 1984, is now a Delaware corporation headquartered in San Jose, California, and is listed on Nasdaq. Cisco reports by geography (Americas; Europe, Middle East and Africa; and Asia Pacific, Japan and China) and had approximately 82,400 employees on 25 July 2026.
Services
- Campus, data-centre and service-provider networking
- Security products
- Webex collaboration
- Splunk observability and security analytics
- Technical support and professional services
- Revenue (FY2026, to 25 Jul 2026)
- US$63,325m
- Revenue change vs prior year
- +11.8% (from US$56,654m)
- Employees
- c. 82,400 (25 Jul 2026)
- Headquarters
- San Jose, California, US
- Founded
- 1984 (incorporated in California)
- Listed on
- Nasdaq
- Core services
- Campus, data-centre and service-provider networking; Security products; Webex collaboration
10
TS
Largest US-listed IT distributor; hardware, software and cloud aggregation
Best for: IT distribution and resale
TD SYNNEX distributes IT hardware, software and systems from technology vendors to resellers and also designs purpose-built servers, storage and networking for hyperscale data centres. The 10-K says the company has been in business since 1980 and has dual headquarters in Clearwater, Florida, and Fremont, California. It took its present form on 1 September 2021, when SYNNEX Corporation acquired Tech Data Corporation. Revenue for fiscal 2025, which ended on 30 November 2025, was US$62,508 million, up 7%. Distribution margins are thin, so its revenue ranking overstates its weight compared with software companies of similar size. It had approximately 24,000 full-time co-workers and is listed on the New York Stock Exchange.
Services
- IT hardware and software distribution
- Server, datacenter and hybrid cloud solutions
- Security, networking and storage solutions
- Hyve hyperscale server and storage design
- Revenue (FY2025, to 30 Nov 2025)
- US$62,508m
- Revenue change vs prior year
- +6.9% (from US$58,452m)
- Employees
- c. 24,000 full-time (30 Nov 2025)
- Headquarters
- Clearwater, Florida and Fremont, California, US
- Founded
- 1980
- Listed on
- New York Stock Exchange
- Core services
- IT hardware and software distribution; Server, datacenter and hybrid cloud solutions; Security, networking and storage solutions
11
HI
Personal computers, printers and supplies
Best for: Hardware and devices
HP Inc. sells personal computers, workstations, printers and printing supplies, 3D printing, hybrid-work and gaming products in more than 170 countries. It is the legal successor of Hewlett-Packard Company, which on 1 November 2015 separated its enterprise technology, services and financing businesses into Hewlett Packard Enterprise. Revenue for fiscal 2025, which ended on 31 October 2025, was US$55,295 million, up 3%, with Personal Systems net revenue up 6.5%. HP is incorporated in Delaware, headquartered in Palo Alto, California, and listed on the New York Stock Exchange. The company employs approximately 55,000 people worldwide. Its printing business is mature, so growth now comes mainly from PCs, including AI-capable models.
Services
- Commercial and consumer PCs, workstations
- Printers and printing supplies
- 3D printing
- Hybrid-work devices (Poly)
- Device-as-a-service and security software
- Revenue (FY2025, to 31 Oct 2025)
- US$55,295m
- Revenue change vs prior year
- +3.2% (from US$53,559m)
- Employees
- c. 55,000 (FY2025 10-K)
- Headquarters
- Palo Alto, California, US
- Listed on
- New York Stock Exchange
- Core services
- Commercial and consumer PCs, workstations; Printers and printing supplies; 3D printing
12
I
x86 processors and contract chip manufacturing (Intel Foundry)
Best for: Semiconductors
Intel describes itself as a global designer and manufacturer of semiconductor products. Its Intel Products business, made up of the Client Computing and Data Center and AI segments, designs processors that are manufactured by the Intel Foundry segment and by third parties; Intel Foundry also makes chips for external customers. Revenue for 2025 was US$52,853 million, slightly below the US$53,101 million of 2024. The 10-K lists the US government's acquisition of significant equity interests in the company among its risk factors and announces a partnership with NVIDIA to co-develop client and data-centre products. Intel is incorporated in Delaware, headquartered in Santa Clara, California, and listed on Nasdaq. Its workforce was 85,100 people on 27 December 2025, after cuts that reduced the core workforce by about 15% during 2025.
Services
- Client PC processors (Core)
- Data-centre processors (Xeon) and AI accelerators
- Intel Foundry contract manufacturing
- Networking and edge products
- Revenue (2025, to 27 Dec 2025)
- US$52,853m
- Revenue change vs prior year
- -0.5% (from US$53,101m)
- Employees
- 85,100 (27 Dec 2025)
- Headquarters
- Santa Clara, California, US
- Listed on
- Nasdaq
- Core services
- Client PC processors (Core); Data-centre processors (Xeon) and AI accelerators; Intel Foundry contract manufacturing
13
IM
Global IT distributor and cloud marketplace, majority-owned by Platinum Equity
Best for: IT distribution and resale
Ingram Micro distributes technology products and provides professional services, cloud and digital solutions to resellers and vendors worldwide. Its 2025 revenue was US$52,556 million, up 9.5%. The company returned to the public market with an initial public offering in October 2024 and remains a controlled company under New York Stock Exchange rules because Platinum Equity holds a majority stake. Ingram Micro is incorporated in Delaware and headquartered in Irvine, California. It promotes its Xvantage digital platform, which the 10-K says incorporates more than 42 million lines of code and 400 AI and machine-learning models. The company had approximately 22,200 full-time associates on 27 December 2025.
Services
- Client and endpoint distribution
- Advanced solutions: data centre, networking, security
- Cloud solutions
- Xvantage B2B platform
- Professional services
- Revenue (2025, to 27 Dec 2025)
- US$52,556m
- Revenue change vs prior year
- +9.5% (from US$47,984m)
- Employees
- c. 22,200 full-time (27 Dec 2025)
- Headquarters
- Irvine, California, US
- Listed on
- New York Stock Exchange
- Core services
- Client and endpoint distribution; Advanced solutions: data centre, networking, security; Cloud solutions
14
Q
Mobile, automotive and data-centre chips plus wireless patent licensing
Best for: Semiconductors
Qualcomm develops and commercialises wireless connectivity, high-performance low-power computing and AI technologies, selling chips (its QCT business) and licensing patents. It was incorporated in California in 1985 and reincorporated in Delaware in 1991; its head office is in San Diego and its shares trade on Nasdaq. Revenue for fiscal 2026, which ended on 27 September 2026, was US$43,120 million, down 2.6% on fiscal 2025. The 10-K warns that a major handset customer's move to its own modem chips will have a significant negative impact on QCT revenue and describes growth efforts in automotive, IoT and data centres, including the acquisition of Alphawave IP Group in the first quarter of fiscal 2026. Qualcomm had approximately 57,000 full-time, part-time and temporary workers.
Services
- Snapdragon mobile platforms
- Automotive and IoT chips
- Data-centre and connectivity products (Alphawave)
- Wireless patent licensing (QTL)
- Revenue (FY2026, to 27 Sep 2026)
- US$43,120m
- Revenue change vs prior year
- -2.6% (from US$44,284m)
- Employees
- c. 57,000 incl. part-time and temporary (27 Sep 2026)
- Headquarters
- San Diego, California, US
- Founded
- 1985 (incorporated in California)
- Listed on
- Nasdaq
- Core services
- Snapdragon mobile platforms; Automotive and IoT chips; Data-centre and connectivity products (Alphawave)
15
S
Largest CRM software vendor; Agentforce, Slack, Tableau, MuleSoft
Best for: Software and cloud
Salesforce, founded in 1999, sells customer relationship management software for sales, service, marketing and commerce, together with collaboration, integration, analytics and data management products. Its AI-agent offering, Agentforce, is built into what the company calls the Agentforce 360 Platform. Revenue for fiscal 2026, which ended on 31 January 2026, was US$41,525 million, up 9.6%. In November 2025 Salesforce completed the acquisition of Informatica, a cloud data management company, for approximately US$9.6 billion. The company is incorporated in Delaware, headquartered at Salesforce Tower in San Francisco and listed on the New York Stock Exchange. It had 83,334 employees on 31 January 2026.
Services
- Sales, Service and Marketing Cloud
- Agentforce AI agents
- Data Cloud and Informatica data management
- Slack
- Tableau analytics
- MuleSoft integration
- Revenue (FY2026, to 31 Jan 2026)
- US$41,525m
- Revenue change vs prior year
- +9.6% (from US$37,895m)
- Employees
- 83,334 (31 Jan 2026)
- Headquarters
- San Francisco, California, US
- Founded
- 1999
- Listed on
- New York Stock Exchange
- Core services
- Sales, Service and Marketing Cloud; Agentforce AI agents; Data Cloud and Informatica data management
16
SM
Rack-scale AI servers and data-centre building blocks
Best for: Hardware and devices
Super Micro Computer (Supermicro) builds servers and storage systems, increasingly delivered as complete liquid-cooled racks for AI and high-performance computing. During fiscal 2026 it promoted its Data Center Building Block Solutions, which package GPUs, networking, racks, site infrastructure, software and services. Net sales for the year ended 30 June 2026 were US$39,063 million, up 77.8%, which the company attributes to shipments for customers' data-centre deployments, including large design wins from a few customers. That customer concentration is a recurring risk in its filings. Supermicro was incorporated in California in September 1993 and is now a Delaware corporation headquartered in San Jose, California; it is listed on Nasdaq. It employed over 7,000 people, about 3,500 of them in research and development.
Services
- GPU servers for AI training and inference
- Rack-scale liquid-cooled systems
- Enterprise and edge servers
- Storage systems
- Data Center Building Block Solutions
- Revenue (FY2026, to 30 Jun 2026)
- US$39,063m
- Revenue change vs prior year
- +77.8% (from US$21,972m)
- Employees
- over 7,000 (30 Jun 2026)
- Headquarters
- San Jose, California, US
- Founded
- 1993 (incorporated in California)
- Listed on
- Nasdaq
- Core services
- GPU servers for AI training and inference; Rack-scale liquid-cooled systems; Enterprise and edge servers
17
Contract electronics manufacturer with a growing AI data-centre business
Best for: Electronic components and manufacturing services
Jabil provides engineering, supply-chain and manufacturing services, designing and producing products for companies in many industries. It reports three segments: Regulated Industries, Intelligent Infrastructure and Connected Living and Digital Commerce. The Intelligent Infrastructure segment covers capital equipment, cloud and data-centre infrastructure, including AI infrastructure. Revenue for fiscal 2026, which ended on 31 August 2026, was US$35,954 million, up 21%. Jabil is incorporated in Delaware, headquartered in St. Petersburg, Florida, and listed on the New York Stock Exchange. It operates in approximately 120 locations in 30 countries; its 10-K does not give a total headcount. Its recent acquisitions include Mikros Technologies and Hanley Energy Group.
Services
- Electronics manufacturing services
- Design and engineering
- Cloud and data-centre infrastructure manufacturing
- Healthcare and automotive manufacturing
- Supply-chain management
- Revenue (FY2026, to 31 Aug 2026)
- US$35,954m
- Revenue change vs prior year
- +20.6% (from US$29,802m)
- Headquarters
- St. Petersburg, Florida, US
- Listed on
- New York Stock Exchange
- Core services
- Electronics manufacturing services; Design and engineering; Cloud and data-centre infrastructure manufacturing
18
A
CPUs, GPUs and AI accelerators for data centres, PCs and gaming
Best for: Semiconductors
Advanced Micro Devices designs processors, graphics chips and AI accelerators, including the EPYC server CPU and Instinct accelerator families, and relies on outside foundries for manufacturing. Revenue for 2025 was US$34,639 million, up 34% on 2024. In March 2025 AMD completed the acquisition of ZT Systems, a builder of rack-scale AI infrastructure, and kept its design operations. The ZT Systems manufacturing business was then sold to Sanmina, which completed that purchase on 27 October 2025. AMD is incorporated in Delaware, headquartered in Santa Clara, California, and listed on Nasdaq. It had approximately 31,000 employees on 27 December 2025.
Services
- EPYC server processors
- Instinct AI accelerators
- Ryzen PC processors
- Radeon graphics
- Embedded and adaptive SoCs (former Xilinx)
- Revenue (2025, to 27 Dec 2025)
- US$34,639m
- Revenue change vs prior year
- +34.3% (from US$25,785m)
- Employees
- c. 31,000 (27 Dec 2025)
- Headquarters
- Santa Clara, California, US
- Listed on
- Nasdaq
- Core services
- EPYC server processors; Instinct AI accelerators; Ryzen PC processors
19
Servers, storage, networking (Aruba, Juniper) and hybrid cloud
Best for: Hardware and devices
Hewlett Packard Enterprise sells servers, storage, networking, hybrid cloud software and financing to enterprises and government bodies. It traces its legacy to the partnership founded by William Hewlett and David Packard in 1939 and became a separate company when Hewlett-Packard split in 2015. On 2 July 2025 HPE completed the acquisition of Juniper Networks, adding it to the Aruba networking business. Revenue for fiscal 2025, which ended on 31 October 2025, was US$34,296 million, up 14%. HPE is incorporated in Delaware, headquartered in Spring, Texas, and listed on the New York Stock Exchange. It had approximately 67,000 employees on 31 October 2025.
Services
- ProLiant servers and AI systems
- Cray supercomputers
- Storage (Alletra)
- Networking: Aruba and Juniper
- GreenLake hybrid cloud
- Financial services
- Revenue (FY2025, to 31 Oct 2025)
- US$34,296m
- Revenue change vs prior year
- +13.8% (from US$30,127m)
- Employees
- c. 67,000 (31 Oct 2025)
- Headquarters
- Spring, Texas, US
- Founded
- 1939 (Hewlett-Packard partnership)
- Listed on
- New York Stock Exchange
- Core services
- ProLiant servers and AI systems; Cray supercomputers; Storage (Alletra)
20
Distributor of electronic components and enterprise computing solutions
Best for: IT distribution and resale
Arrow Electronics distributes electronic components to manufacturers and enterprise computing products to value-added resellers and managed service providers. It reports two segments, global components and global enterprise computing solutions (ECS). The company was incorporated in New York in 1946 and is headquartered in Centennial, Colorado. Revenue for 2025 was US$30,853 million, up 10.5%. Arrow is listed on the New York Stock Exchange. It employed approximately 22,230 people worldwide on 31 December 2025. Its inclusion follows the rule that technology distributors count as IT companies; its components business also serves industrial and automotive customers.
Services
- Electronic components distribution
- Enterprise computing solutions (ECS)
- Supply-chain and design engineering services
- Cloud and infrastructure software aggregation
- Revenue (2025, to 31 Dec 2025)
- US$30,853m
- Revenue change vs prior year
- +10.5% (from US$27,923m)
- Employees
- c. 22,230 (31 Dec 2025)
- Headquarters
- Centennial, Colorado, US
- Founded
- 1946
- Listed on
- New York Stock Exchange
- Core services
- Electronic components distribution; Enterprise computing solutions (ECS); Supply-chain and design engineering services
21
Largest US maker of wafer fabrication equipment
Best for: Semiconductor equipment
Applied Materials designs, produces and services wafer fabrication equipment used to manufacture semiconductors, describing itself as the leader in materials engineering for chipmaking. Its Semiconductor Systems segment is the largest contributor to revenue; the company also sells services to its installed base and display equipment. Revenue for fiscal 2025, which ended on 26 October 2025, was US$28,368 million, up 4%. Applied is incorporated in Delaware, headquartered in Santa Clara, California, and listed on Nasdaq. It employed approximately 36,500 regular full-time staff in 25 countries, 46% of them in Asia-Pacific. In the fourth quarter of fiscal 2025 it approved a workforce reduction expected to affect about 4% of its staff.
Services
- Deposition, etch and ion implantation equipment
- Inspection and process control
- Applied Global Services
- Display equipment
- Revenue (FY2025, to 26 Oct 2025)
- US$28,368m
- Revenue change vs prior year
- +4.4% (from US$27,176m)
- Employees
- c. 36,500 regular full-time (26 Oct 2025)
- Headquarters
- Santa Clara, California, US
- Listed on
- Nasdaq
- Core services
- Deposition, etch and ion implantation equipment; Inspection and process control; Applied Global Services
22
Electronic components distributor; owner of Farnell
Best for: IT distribution and resale
Avnet, founded in 1921, distributes electronic components from manufacturers to original equipment manufacturers, electronics manufacturing service providers and original design manufacturers in more than 140 countries. It has two operating groups, Electronic Components and Farnell. Revenue for fiscal 2026, which ended on 27 June 2026, was US$27,633 million, up 24.5%. Avnet is incorporated in New York, lists its head office in Phoenix, Arizona, on its 10-K cover and is listed on Nasdaq. It had approximately 15,040 employees in 48 countries. Like Arrow, it is included as a technology distributor.
Services
- Electronic components distribution
- Farnell high-service distribution
- Design and engineering support
- Supply-chain services
- Revenue (FY2026, to 27 Jun 2026)
- US$27,633m
- Revenue change vs prior year
- +24.5% (from US$22,201m)
- Employees
- c. 15,040 (27 Jun 2026)
- Headquarters
- Phoenix, Arizona, US
- Founded
- 1921
- Listed on
- Nasdaq
- Core services
- Electronic components distribution; Farnell high-service distribution; Design and engineering support
23
Creative Cloud, Acrobat and marketing software
Best for: Software and cloud
Adobe makes software for creating, editing and delivering content, including Photoshop, Illustrator, Premiere, Acrobat and the Firefly generative AI models, and sells digital experience software for marketing. Revenue for fiscal 2025, which ended on 28 November 2025, was US$23,769 million, up 10.5%. The Digital Media segment generated US$17.65 billion of that, up 11%. On 18 November 2025 Adobe agreed to acquire Semrush Holdings, a search-marketing software company. Adobe is incorporated in Delaware, headquartered in San Jose, California, and listed on Nasdaq. It employed 31,360 people at the fiscal year end, half of them in the United States.
Services
- Creative Cloud (Photoshop, Illustrator, Premiere)
- Document Cloud and Acrobat
- Firefly generative AI
- Adobe Experience Cloud
- GenStudio for content production
- Revenue (FY2025, to 28 Nov 2025)
- US$23,769m
- Revenue change vs prior year
- +10.5% (from US$21,505m)
- Employees
- 31,360 (28 Nov 2025)
- Headquarters
- San Jose, California, US
- Listed on
- Nasdaq
- Core services
- Creative Cloud (Photoshop, Illustrator, Premiere); Document Cloud and Acrobat; Firefly generative AI
24
Etch and deposition equipment for chipmakers
Best for: Semiconductor equipment
Lam Research supplies wafer fabrication equipment, mainly etch and deposition systems, and services to semiconductor manufacturers. The company was incorporated in 1980 and is a Delaware corporation headquartered in Fremont, California, with facilities across Asia, Europe and the United States. Revenue for fiscal 2026, which ended on 28 June 2026, was US$23,233 million, up 26%. Gross margin rose to 50.5% of revenue, which the 10-K attributes to favourable customer mix. Lam is listed on Nasdaq. It had approximately 23,300 regular full-time employees on 4 August 2026, over 26% of them in research and development.
Services
- Etch systems
- Deposition systems
- Clean and advanced packaging tools
- Customer support and upgrades
- Revenue (FY2026, to 28 Jun 2026)
- US$23,233m
- Revenue change vs prior year
- +26.0% (from US$18,436m)
- Employees
- c. 23,300 regular full-time (4 Aug 2026)
- Headquarters
- Fremont, California, US
- Founded
- 1980 (incorporated)
- Listed on
- Nasdaq
- Core services
- Etch systems; Deposition systems; Clean and advanced packaging tools
25
A
Connectors, cables, antennas and sensors; now owner of CommScope's CCS unit
Best for: Electronic components and manufacturing services
Amphenol designs and manufactures connectors and interconnect systems, antennas, sensors and coaxial, high-speed and fibre-optic cable. Its predecessor businesses were founded in 1932 and the present company was incorporated in Delaware in 1986. Revenue for 2025 was US$23,095 million, up 52%, helped by acquisitions. On 31 January 2025 it bought the Andrew outdoor wireless and distributed antenna businesses, and on 9 January 2026 it completed the purchase of the Connectivity and Cable Solutions business from Vistance (formerly CommScope) for approximately US$10.5 billion, its largest acquisition. Amphenol is headquartered in Wallingford, Connecticut, and listed on the New York Stock Exchange. It had approximately 170,000 employees, about 15,000 in the United States.
Services
- High-speed and power interconnect for data centres
- Fibre-optic and coaxial cable
- Antennas
- Sensors
- Connectivity and cable solutions (former CommScope)
- Revenue (2025, to 31 Dec 2025)
- US$23,095m
- Revenue change vs prior year
- +51.7% (from US$15,223m)
- Employees
- c. 170,000 (31 Dec 2025)
- Headquarters
- Wallingford, Connecticut, US
- Founded
- 1932 (predecessor businesses)
- Listed on
- New York Stock Exchange
- Core services
- High-speed and power interconnect for data centres; Fibre-optic and coaxial cable; Antennas
26
IT solutions reseller to business, government, education and healthcare
Best for: IT distribution and resale
CDW is a multi-brand provider of IT hardware, software and integrated solutions to business, government, education and healthcare customers in the United States, the United Kingdom and Canada. It sells through approximately 10,500 customer-facing coworkers, including sellers, specialists and engineers. Revenue for 2025 was US$22,424 million, up 6.8%. On 27 November 2024 CDW completed the acquisition of Mission Cloud, a cloud services firm, for a base price of US$330 million. CDW is incorporated in Delaware, headquartered in Vernon Hills, Illinois, and listed on Nasdaq. It had approximately 14,800 coworkers, 11,200 of them in the United States.
Services
- Hardware and software resale
- Cloud and managed services
- Security solutions
- Hybrid infrastructure and digital experience
- Public-sector and education contracts
- Revenue (2025, to 31 Dec 2025)
- US$22,424m
- Revenue change vs prior year
- +6.8% (from US$20,999m)
- Employees
- c. 14,800 (FY2025 10-K)
- Headquarters
- Vernon Hills, Illinois, US
- Listed on
- Nasdaq
- Core services
- Hardware and software resale; Cloud and managed services; Security solutions
27
TurboTax, QuickBooks, Credit Karma and Mailchimp
Best for: Software and cloud
Intuit sells financial software and services, including TurboTax, Credit Karma, QuickBooks and Mailchimp, to about 93 million consumers, small and mid-market businesses and accountants. Revenue for fiscal 2026, which ended on 31 July 2026, was US$21,448 million, up 14%; Global Business Solutions contributed US$12.9 billion and the Consumer segment US$8.6 billion. The 10-K says growth came mainly from QuickBooks Online accounting, money and payroll services. Intuit was incorporated in California in March 1984, is now a Delaware corporation headquartered in Mountain View, California, and is listed on Nasdaq. It had approximately 18,600 employees in seven countries. Its revenue is seasonal because of the US tax-filing calendar.
Services
- QuickBooks accounting and payroll
- TurboTax tax preparation
- Credit Karma
- Mailchimp marketing
- Intuit Enterprise Suite for mid-market firms
- Revenue (FY2026, to 31 Jul 2026)
- US$21,448m
- Revenue change vs prior year
- +13.9% (from US$18,831m)
- Employees
- c. 18,600 (31 Jul 2026)
- Headquarters
- Mountain View, California, US
- Founded
- 1984 (incorporated in California)
- Listed on
- Nasdaq
- Core services
- QuickBooks accounting and payroll; TurboTax tax preparation; Credit Karma
28
Largest US-based IT services company by headcount
Best for: IT services
Cognizant provides consulting, application development, systems integration, quality engineering, engineering research and development, application maintenance, infrastructure, security and business process services. It delivers through client-site teams and global and regional delivery centres. Revenue for 2025 was US$21,108 million, up 7%; the acquisition of the engineering services firm Belcan contributed 2.6 percentage points of that growth. Cognizant is incorporated in Delaware, headquartered in Teaneck, New Jersey, and listed on Nasdaq. It ended 2025 with approximately 351,600 employees, up from 336,800 a year earlier, the largest workforce of any company in this ranking.
Services
- Consulting and digital engineering
- Application development and maintenance
- Cloud, infrastructure and security services
- Engineering R&D services (Belcan)
- Business process services
- Revenue (2025, to 31 Dec 2025)
- US$21,108m
- Revenue change vs prior year
- +7.0% (from US$19,736m)
- Employees
- c. 351,600 (31 Dec 2025)
- Headquarters
- Teaneck, New Jersey, US
- Listed on
- Nasdaq
- Core services
- Consulting and digital engineering; Application development and maintenance; Cloud, infrastructure and security services
29
S
NAND flash memory company separated from Western Digital in 2025
Best for: Semiconductors
Sandisk is a NAND flash memory company that designs chips and manufactures them through front-end and back-end facilities, selling SSDs, embedded storage and consumer products. It was wholly owned by Western Digital until 21 February 2025, when it was separated and listed on Nasdaq. Revenue for fiscal 2026, which ended on 3 July 2026, was US$20,248 million, up 175%. The 10-K attributes the increase to a 437% rise in data-centre revenue, a 195% rise in edge revenue and a 29% rise in consumer revenue, driven by higher volumes and prices. Sandisk is incorporated in Delaware and headquartered in Milpitas, California. It had approximately 11,100 employees across 33 countries, 74% of them in Asia-Pacific.
Services
- Data-centre SSDs
- Client and embedded flash storage
- Consumer memory cards and drives
- NAND wafer manufacturing (joint venture)
- Revenue (FY2026, to 3 Jul 2026)
- US$20,248m
- Revenue change vs prior year
- +175.3% (from US$7,355m)
- Employees
- c. 11,100 (Jul 2026)
- Headquarters
- Milpitas, California, US
- Listed on
- Nasdaq
- Core services
- Data-centre SSDs; Client and embedded flash storage; Consumer memory cards and drives
30
TI
Analog and embedded processing chips made in its own 300mm fabs
Best for: Semiconductors
Texas Instruments designs and manufactures analog and embedded processing semiconductors that it sells to electronics designers and manufacturers. Its operations began in 1930; it is incorporated in Delaware and headquartered in Dallas, Texas, with design, manufacturing or sales operations in more than 30 countries. Revenue for 2025 was US$17,682 million, up 13%; the Analog segment contributed US$14,006 million. The company is investing heavily in 300mm wafer fabs and in 2025 continued ramping production at new fabs in Richardson and Sherman, Texas, and Lehi, Utah. TI is listed on Nasdaq and had about 33,000 employees at the end of 2025.
Services
- Analog chips: power management and signal chain
- Embedded processors and microcontrollers
- DLP display chips and calculators (Other)
- Internal 300mm wafer manufacturing
- Revenue (2025, to 31 Dec 2025)
- US$17,682m
- Revenue change vs prior year
- +13.0% (from US$15,641m)
- Employees
- c. 33,000 (31 Dec 2025)
- Headquarters
- Dallas, Texas, US
- Founded
- 1930 (operations began)
- Listed on
- Nasdaq
- Core services
- Analog chips: power management and signal chain; Embedded processors and microcontrollers; DLP display chips and calculators (Other)
31
C
Glass, optical fibre and materials for displays and data centres
Best for: Electronic components and manufacturing services
Corning applies glass science, ceramic science and optical physics to products such as optical fibre and cable, display glass, cover glass for mobile devices, automotive and life-sciences materials. The company traces its origins to a glass business established in 1851; the present corporation was incorporated in New York in December 1936 and took the name Corning Incorporated in 1989. Revenue for 2025 was US$15,629 million, up 19%. Its optical communications business supplies fibre and connectivity for data centres. Corning is headquartered in Corning, New York, and listed on the New York Stock Exchange. It had approximately 67,200 full- and part-time employees in 44 countries. Its inclusion rests on the electronic-components part of the IT definition used here.
Services
- Optical fibre, cable and connectivity
- Display glass
- Gorilla Glass and specialty materials
- Environmental and automotive glass
- Life sciences
- Revenue (2025, to 31 Dec 2025)
- US$15,629m
- Revenue change vs prior year
- +19.1% (from US$13,118m)
- Employees
- c. 67,200 full- and part-time (FY2025 10-K)
- Headquarters
- Corning, New York, US
- Founded
- 1851 (glass business)
- Listed on
- New York Stock Exchange
- Core services
- Optical fibre, cable and connectivity; Display glass; Gorilla Glass and specialty materials
32
K
IT infrastructure services company spun off from IBM in 2021
Best for: IT services
Kyndryl designs, builds, manages and modernises IT infrastructure for enterprise customers in more than 60 countries and describes itself as the largest IT infrastructure services provider. It was formed in November 2021 by the spin-off of the infrastructure services unit of IBM's Global Technology Services segment. Revenue for fiscal 2026, which ended on 31 March 2026, was US$15,092 million, almost unchanged from US$15,057 million a year earlier. Its advisory and implementation services are branded Kyndryl Consult. Kyndryl is incorporated in Delaware, headquartered at One Vanderbilt Avenue in New York City and listed on the New York Stock Exchange. It had approximately 72,000 employees in 60 countries on 31 March 2026.
Services
- Mainframe and core enterprise services
- Cloud services
- Applications, data and AI services
- Digital workplace services
- Security and resiliency
- Network and edge services
- Revenue (FY2026, to 31 Mar 2026)
- US$15,092m
- Revenue change vs prior year
- +0.2% (from US$15,057m)
- Employees
- c. 72,000 (31 Mar 2026)
- Headquarters
- New York, New York, US
- Listed on
- New York Stock Exchange
- Core services
- Mainframe and core enterprise services; Cloud services; Applications, data and AI services
33
Process control and inspection equipment for chipmaking
Best for: Semiconductor equipment
KLA supplies process control and process-enabling equipment, software and services used to manufacture wafers, masks, integrated circuits, packaged chips and printed circuit boards. Its inspection and metrology tools help chipmakers find defects and improve yields. Revenue for fiscal 2026, which ended on 30 June 2026, was US$13,579 million, up 12%; services accounted for approximately 23% of the total. KLA is incorporated in Delaware, headquartered in Milpitas, California, and listed on Nasdaq. It had approximately 17,000 regular full-time employees plus about 200 part-time and temporary staff on 30 June 2026.
Services
- Wafer and reticle inspection
- Metrology
- Process control software
- Specialty semiconductor process equipment
- PCB and display inspection
- Installed-base services
- Revenue (FY2026, to 30 Jun 2026)
- US$13,579m
- Revenue change vs prior year
- +11.7% (from US$12,156m)
- Employees
- c. 17,000 regular full-time (30 Jun 2026)
- Headquarters
- Milpitas, California, US
- Listed on
- Nasdaq
- Core services
- Wafer and reticle inspection; Metrology; Process control software
34
Cloud workflow platform for IT, HR and customer service
Best for: Software and cloud
ServiceNow sells a cloud platform and applications that automate workflows across IT, employee, customer and risk functions, and markets tools for governing and managing AI. Most of its revenue is subscription revenue recognised over the contract term. Revenue for 2025 was US$13,278 million, up 21%. On 15 December 2025 it completed the acquisition of Moveworks, an AI assistant company, issuing about 7.8 million shares as part of the consideration. ServiceNow is incorporated in Delaware, headquartered in Santa Clara, California, and listed on the New York Stock Exchange. It employed 29,187 people full-time on 31 December 2025, about half in the United States.
Services
- IT service and operations management
- HR and employee workflows
- Customer service management
- Risk and security operations
- Now Assist AI agents
- Creator and integration tools
- Revenue (2025, to 31 Dec 2025)
- US$13,278m
- Revenue change vs prior year
- +20.9% (from US$10,984m)
- Employees
- 29,187 full-time (31 Dec 2025)
- Headquarters
- Santa Clara, California, US
- Listed on
- New York Stock Exchange
- Core services
- IT service and operations management; HR and employee workflows; Customer service management
35
Hard disk drives for cloud data centres
Best for: Hardware and devices
Western Digital was founded in 1970 and now concentrates on hard disk drives after separating its flash business as Sandisk on 21 February 2025. Its drives are used mainly by cloud data-centre operators, with smaller enterprise, client and consumer markets. Revenue for fiscal 2026, which ended on 3 July 2026, was US$12,919 million, up 36%. The 10-K says cloud revenue made up 89% of the total and rose 38%, driven by a 27% increase in exabytes shipped and an 8% increase in prices per exabyte. Western Digital is incorporated in Delaware, headquartered in San Jose, California, and listed on Nasdaq. It employed approximately 40,000 people at the end of fiscal 2026.
Services
- High-capacity data-centre HDDs
- Client and consumer HDDs
- Storage platforms
- Revenue (FY2026, to 3 Jul 2026)
- US$12,919m
- Revenue change vs prior year
- +35.7% (from US$9,520m)
- Employees
- c. 40,000 (end of FY2026)
- Headquarters
- San Jose, California, US
- Founded
- 1970
- Listed on
- Nasdaq
- Core services
- High-capacity data-centre HDDs; Client and consumer HDDs; Storage platforms
36
IT services company formed from CSC and HP Enterprise Services
Best for: IT services
DXC Technology provides managed infrastructure services, application modernisation and industry software, especially for insurance, to large enterprises and public-sector bodies. It was formed on 1 April 2017 by the merger of Computer Sciences Corporation with the enterprise services business of Hewlett Packard Enterprise. Revenue for fiscal 2026, which ended on 31 March 2026, was US$12,644 million, down 1.8% from US$12,871 million. About 75% of its revenue is earned in currencies other than the US dollar. DXC is incorporated in Nevada, headquartered in Ashburn, Virginia, and listed on the New York Stock Exchange. It reports approximately 115,000 employees in 60 countries.
Services
- Global infrastructure services
- Consulting and engineering services
- Application modernisation
- Insurance software and BPS
- Cloud and security services
- Revenue (FY2026, to 31 Mar 2026)
- US$12,644m
- Revenue change vs prior year
- -1.8% (from US$12,871m)
- Employees
- c. 115,000 (FY2026 10-K)
- Headquarters
- Ashburn, Virginia, US
- Founded
- 2017 (merger)
- Listed on
- New York Stock Exchange
- Core services
- Global infrastructure services; Consulting and engineering services; Application modernisation
37
MS
Public-safety radio networks, video security and command-centre software
Best for: Networking and communications equipment
Motorola Solutions sells mission-critical communications networks, video security and access control and command-centre software, mainly to public-safety agencies, governments, the defence sector and enterprises. It serves more than 100,000 customers in over 100 countries. The company was organised in 1928 and, according to its EDGAR record, was named Motorola, Inc. until January 2011. Revenue for 2025 was US$11,682 million, up 8%. In August 2025 it acquired Silvus Technologies, a maker of mobile ad hoc network radios, and renamed its land mobile radio business Mission Critical Networks. Motorola Solutions is incorporated in Delaware, headquartered in Chicago and listed on the New York Stock Exchange. It employed approximately 23,000 people.
Services
- Mission-critical radio networks (Mission Critical Networks)
- Video security and access control
- Command-centre and 911 software
- Silvus MANET radios
- Managed and support services
- Revenue (2025, to 31 Dec 2025)
- US$11,682m
- Revenue change vs prior year
- +8.0% (from US$10,817m)
- Employees
- c. 23,000 (31 Dec 2025)
- Headquarters
- Chicago, Illinois, US
- Founded
- 1928
- Listed on
- New York Stock Exchange
- Core services
- Mission-critical radio networks (Mission Critical Networks); Video security and access control; Command-centre and 911 software
38
PA
Largest US cybersecurity vendor by revenue; acquired CyberArk in 2026
Best for: Software and cloud
Palo Alto Networks sells cybersecurity platforms covering networks, cloud, endpoints, security operations, AI applications and identity. It was incorporated in 2005 and is headquartered in Santa Clara, California. Revenue for fiscal 2026, which ended on 31 July 2026, was US$11,480 million, up 24.5%. On 11 February 2026 it completed the acquisition of CyberArk, the identity security company, and in April 2026 it acquired Koi, adding agentic endpoint security; it also acquired Chronosphere to form an observability platform. Headcount rose from 16,068 to 21,921 during the year, including about 4,223 people who joined with CyberArk. The company is incorporated in Delaware and listed on Nasdaq.
Services
- Strata network security and firewalls
- Prisma SASE and cloud security
- Cortex security operations and XSIAM
- CyberArk identity security
- Chronosphere observability
- Unit 42 threat intelligence and response
- Revenue (FY2026, to 31 Jul 2026)
- US$11,480m
- Revenue change vs prior year
- +24.5% (from US$9,221m)
- Employees
- 21,921 (end of FY2026)
- Headquarters
- Santa Clara, California, US
- Founded
- 2005
- Listed on
- Nasdaq
- Core services
- Strata network security and firewalls; Prisma SASE and cloud security; Cortex security operations and XSIAM
39
High-performance analog, mixed-signal and power chips
Best for: Semiconductors
Analog Devices designs, manufactures, tests and markets integrated circuits, software and subsystems built on analog, mixed-signal and digital signal processing technology, including data converters, amplifiers, power management and radio-frequency chips. Revenue for fiscal 2025, which ended on 1 November 2025, was US$11,020 million, up 17%. ADI was incorporated in Massachusetts in 1965 and has its head office in Wilmington, Massachusetts; it is listed on Nasdaq. It had approximately 24,500 employees, about 13,000 of them in engineering roles. The 10-K frames its strategy around what it calls the Intelligent Edge, combining sensing, edge computing, AI and connectivity.
Services
- Data converters and amplifiers
- Power management ICs
- RF and microwave chips
- Sensors and edge processors
- Automotive battery management systems
- Revenue (FY2025, to 1 Nov 2025)
- US$11,020m
- Revenue change vs prior year
- +16.9% (from US$9,427m)
- Employees
- c. 24,500 (1 Nov 2025)
- Headquarters
- Wilmington, Massachusetts, US
- Founded
- 1965 (incorporated in Massachusetts)
- Listed on
- Nasdaq
- Core services
- Data converters and amplifiers; Power management ICs; RF and microwave chips
40
W
Cloud HR and finance applications
Best for: Software and cloud
Workday sells cloud applications for human capital management, financial management and spend management, increasingly with AI agents built in. The company says it serves more than 11,500 organisations, with more than 75 million users under contract and over 65% of the Fortune 500 as customers. Revenue for fiscal 2026, which ended on 31 January 2026, was US$9,552 million, up 13%. Recent acquisitions listed in its 10-K include Paradox, a conversational AI hiring tool, Sana Labs, Flowise and Pipedream. Workday is incorporated in Delaware, headquartered in Pleasanton, California, and listed on Nasdaq. It had over 21,000 employees in 36 countries, about 58% of them in the United States.
Services
- Human capital management
- Financial management
- Spend and procurement
- Planning (Adaptive Planning)
- AI agents (Paradox, Sana)
- Revenue (FY2026, to 31 Jan 2026)
- US$9,552m
- Revenue change vs prior year
- +13.1% (from US$8,446m)
- Employees
- over 21,000 (31 Jan 2026)
- Headquarters
- Pleasanton, California, US
- Listed on
- Nasdaq
- Core services
- Human capital management; Financial management; Spend and procurement
41
AN
Cloud and AI data-centre switching
Best for: Networking and communications equipment
Arista Networks sells Ethernet switching and routing for AI clusters, data centres, campus networks and wide-area networks, all running its Extensible Operating System (EOS). Revenue for 2025 was US$9,006 million, up 29%. In June 2025 Arista completed the acquisition of VeloCloud, adding an SD-WAN portfolio for branch networks. Arista is incorporated in Delaware, headquartered in Santa Clara, California, and listed on the New York Stock Exchange. It employed approximately 5,115 full-time staff on 31 December 2025, a small workforce for a company of its revenue.
Services
- Data-centre and AI networking switches
- Routing
- Campus wired and wireless
- VeloCloud SD-WAN
- CloudVision management and network observability
- Revenue (2025, to 31 Dec 2025)
- US$9,006m
- Revenue change vs prior year
- +28.6% (from US$7,003m)
- Employees
- c. 5,115 full-time (31 Dec 2025)
- Headquarters
- Santa Clara, California, US
- Listed on
- New York Stock Exchange
- Core services
- Data-centre and AI networking switches; Routing; Campus wired and wireless
42
IE
Solutions integrator reselling hardware, software and cloud
Best for: IT distribution and resale
Insight Enterprises describes itself as a solutions integrator, selling hardware, software, cloud and services in North America, Europe and Asia-Pacific. The company cites 37 years of IT experience and is listed on Nasdaq. Revenue for 2025 was US$8,247 million, down 5.2%. Insight is incorporated in Delaware, with its head office in Chandler, Arizona. It employed 14,505 teammates on 31 December 2025. Outside North America and some EMEA and APAC countries its offering is mainly software, software-related services and cloud solutions.
Services
- Hardware and software resale
- Cloud solutions and licensing
- Managed and professional services
- Data and AI services
- Digital workplace
- Revenue (2025, to 31 Dec 2025)
- US$8,247m
- Revenue change vs prior year
- -5.2% (from US$8,702m)
- Employees
- 14,505 (31 Dec 2025)
- Headquarters
- Chandler, Arizona, US
- Founded
- 1991 (incorporated in Delaware)
- Listed on
- Nasdaq
- Core services
- Hardware and software resale; Cloud solutions and licensing; Managed and professional services
43
Fabless data-infrastructure chips, custom AI silicon and optics
Best for: Semiconductors
Marvell Technology is a fabless supplier of data-infrastructure semiconductors, including custom AI chips, electro-optics, networking, storage and security processors. It is incorporated in Delaware and its corporate headquarters is in Wilmington, Delaware; it has operations in Argentina, China, India, Israel, Japan, Singapore, South Korea, Taiwan and Vietnam. Revenue for fiscal 2026, which ended on 31 January 2026, was US$8,195 million, up 42%. Shortly after the year end, on 2 February 2026, Marvell completed the acquisition of Celestial AI, adding its Photonic Fabric optical interconnect technology. The company is listed on Nasdaq and employed 7,480 people on 31 January 2026.
Services
- Custom AI accelerators (XPUs)
- Electro-optics and DSPs
- Ethernet switching and PHYs
- Storage controllers
- Photonic Fabric interconnect (Celestial AI)
- Revenue (FY2026, to 31 Jan 2026)
- US$8,195m
- Revenue change vs prior year
- +42.1% (from US$5,767m)
- Employees
- 7,480 (31 Jan 2026)
- Headquarters
- Wilmington, Delaware, US
- Listed on
- Nasdaq
- Core services
- Custom AI accelerators (XPUs); Electro-optics and DSPs; Ethernet switching and PHYs
44
Contract manufacturer now owning ZT Systems' rack-scale production
Best for: Electronic components and manufacturing services
Sanmina provides integrated manufacturing, components, products, repair and logistics services to equipment makers in industrial, medical, defence and aerospace, automotive, communications and cloud infrastructure markets. Revenue for fiscal 2025, which ended on 27 September 2025, was US$8,128 million, up 7%. After the year end, on 27 October 2025, it completed the acquisition of ZT Systems' manufacturing business from AMD, which builds rack-scale cloud and AI systems. Sanmina was incorporated in California in 1980, is now a Delaware corporation headquartered in San Jose, California, and is listed on Nasdaq. It had approximately 39,000 employees, including 4,000 temporary staff, in 20 countries. Its fiscal 2026 annual report had not been filed when this list was compiled.
Services
- Electronics manufacturing services
- Rack-scale cloud and AI infrastructure (ZT Systems)
- Printed circuit boards and components
- Defence and medical manufacturing
- Repair and logistics
- Revenue (FY2025, to 27 Sep 2025)
- US$8,128m
- Revenue change vs prior year
- +7.4% (from US$7,568m)
- Employees
- c. 39,000 incl. 4,000 temporary (27 Sep 2025)
- Headquarters
- San Jose, California, US
- Founded
- 1980 (incorporated in California)
- Listed on
- Nasdaq
- Core services
- Electronics manufacturing services; Rack-scale cloud and AI infrastructure (ZT Systems); Printed circuit boards and components
45
RT
Acquirer of vertical-market software businesses
Best for: Software and cloud
Roper Technologies describes itself as a diversified technology company that owns businesses designing vertical software and technology-enabled products for niche markets. Its strategy is to buy high-margin software and technology businesses; the 10-K says it deployed approximately US$8.96 billion on acquisitions over three years, including about US$1.85 billion for CentralReach, a provider of software for behaviour-therapy clinicians, in 2025. Revenue for 2025 was US$7,902 million, up 12%. Roper is incorporated in Delaware, headquartered in Sarasota, Florida, and listed on Nasdaq. It employed approximately 19,400 people, about 13,100 of them in the United States. It is included because most of its revenue comes from its software segments.
Services
- Application software (Deltek, Aderant, Vertafore, CentralReach)
- Network software (DAT, Foundry)
- Technology-enabled products (Neptune, Verathon)
- Revenue (2025, to 31 Dec 2025)
- US$7,902m
- Revenue change vs prior year
- +12.3% (from US$7,039m)
- Employees
- c. 19,400 (31 Dec 2025)
- Headquarters
- Sarasota, Florida, US
- Listed on
- Nasdaq
- Core services
- Application software (Deltek, Aderant, Vertafore, CentralReach); Network software (DAT, Foundry); Technology-enabled products (Neptune, Verathon)
46
A
Design and engineering software: AutoCAD, Revit, Fusion
Best for: Software and cloud
Autodesk makes 3D design, engineering and entertainment software for architecture, engineering, construction, product design, manufacturing and media. Its best-known products include AutoCAD, Revit, Fusion and Maya, sold globally through resellers and directly. Customers use the software to visualise, simulate and analyse real-world performance early in the design process. Revenue for fiscal 2026, which ended on 31 January 2026, was US$7,206 million, up 17.5%. Autodesk is incorporated in Delaware, headquartered in San Francisco and listed on Nasdaq. It reported approximately 14,300 employees on 31 January 2026, down from approximately 15,300 a year earlier.
Services
- AutoCAD
- Revit and AEC collection
- Fusion product design and manufacturing
- Maya and 3ds Max for media
- Construction Cloud
- Revenue (FY2026, to 31 Jan 2026)
- US$7,206m
- Revenue change vs prior year
- +17.5% (from US$6,131m)
- Employees
- c. 14,300 (31 Jan 2026)
- Headquarters
- San Francisco, California, US
- Listed on
- Nasdaq
- Core services
- AutoCAD; Revit and AEC collection; Fusion product design and manufacturing
47
Optical transceivers, lasers and materials (formerly II-VI)
Best for: Electronic components and manufacturing services
Coherent Corp. makes photonic products, including optical transceivers for AI data centres, telecom transport equipment, lasers and engineered materials. The company was known as II-VI Incorporated until 2022, when it adopted the Coherent name after acquiring Coherent, Inc. Revenue for fiscal 2026, which ended on 30 June 2026, was US$7,118 million, up 22.5%. The 10-K attributes much of the growth to hyperscale and cloud providers' spending on AI data-centre infrastructure, which raised demand for datacenter transceivers. Coherent is incorporated in Pennsylvania, headquartered in Saxonburg, Pennsylvania, and listed on the New York Stock Exchange. It employed approximately 51,000 people worldwide.
Services
- Datacenter optical transceivers
- Telecom transport and ZR/ZR+ modules
- Industrial and scientific lasers
- Engineered materials and silicon carbide
- Revenue (FY2026, to 30 Jun 2026)
- US$7,118m
- Revenue change vs prior year
- +22.5% (from US$5,810m)
- Employees
- c. 51,000 (30 Jun 2026)
- Headquarters
- Saxonburg, Pennsylvania, US
- Listed on
- New York Stock Exchange
- Core services
- Datacenter optical transceivers; Telecom transport and ZR/ZR+ modules; Industrial and scientific lasers
48
S
Chip-design (EDA) software and silicon IP; acquired Ansys in 2025
Best for: Software and cloud
Synopsys supplies electronic design automation software used to design and verify chips, along with silicon intellectual property, simulation and analysis software and design services. On 17 July 2025 it completed the acquisition of Ansys, the simulation software company, for aggregate consideration of approximately US$34.9 billion. Revenue for fiscal 2025, which ended on 31 October 2025, was US$7,054 million, up 15%, including Ansys from the closing date. Synopsys is incorporated in Delaware, headquartered in Sunnyvale, California, and listed on Nasdaq. It had approximately 28,000 employees at the fiscal year end, 23% of them in the United States.
Services
- EDA software for chip design and verification
- Silicon IP
- Simulation and analysis (Ansys)
- Hardware-assisted verification
- Design services
- Revenue (FY2025, to 31 Oct 2025)
- US$7,054m
- Revenue change vs prior year
- +15.1% (from US$6,127m)
- Employees
- c. 28,000 (end of FY2025)
- Headquarters
- Sunnyvale, California, US
- Listed on
- Nasdaq
- Core services
- EDA software for chip design and verification; Silicon IP; Simulation and analysis (Ansys)
49
Printers, print services and IT solutions; acquired Lexmark in 2025
Best for: Hardware and devices
Xerox sells printing equipment, managed print services, document workflow software and, increasingly, IT services to businesses. In July 2025 it completed the acquisition of Lexmark International for total consideration of US$768 million, and it integrated the IT reseller ITsavvy into a new Xerox IT Solutions organisation. Revenue for 2025 was US$7,022 million, up 13%, mainly because of those acquisitions. Headcount rose by approximately 6,100 to approximately 22,900 at 31 December 2025. Xerox Holdings is incorporated in New York, headquartered in Norwalk, Connecticut, and listed on Nasdaq.
Services
- Office and production printers
- Managed print services
- Lexmark printers and supplies
- Xerox IT Solutions
- Intelligent document processing
- Revenue (2025, to 31 Dec 2025)
- US$7,022m
- Revenue change vs prior year
- +12.9% (from US$6,221m)
- Employees
- c. 22,900 (31 Dec 2025)
- Headquarters
- Norwalk, Connecticut, US
- Listed on
- Nasdaq
- Core services
- Office and production printers; Managed print services; Lexmark printers and supplies
50
N
Enterprise data storage and ONTAP data-management software
Best for: Hardware and devices
NetApp, founded in 1992, sells all-flash and hybrid-flash storage systems and cloud data services built around its ONTAP data-management software. Its storage software also runs as native services in the major public clouds. Revenue for fiscal 2026, which ended on 24 April 2026, was US$6,925 million, up 17%. NetApp is incorporated in California, headquartered in San Jose, California, and listed on Nasdaq. It had approximately 11,700 employees on 24 April 2026. It narrowly takes 50th place ahead of Fortinet, whose 2025 revenue was US$6,800 million.
Services
- All-flash and hybrid-flash storage arrays
- ONTAP data management software
- Cloud storage services on AWS, Azure and Google Cloud
- Data protection and ransomware detection
- Revenue (FY2026, to 24 Apr 2026)
- US$6,925m
- Revenue change vs prior year
- +17.2% (from US$5,907m)
- Employees
- c. 11,700 (24 Apr 2026)
- Headquarters
- San Jose, California, US
- Founded
- 1992
- Listed on
- Nasdaq
- Core services
- All-flash and hybrid-flash storage arrays; ONTAP data management software; Cloud storage services on AWS, Azure and Google Cloud
Frequently asked questions
What is the largest IT company in the USA
By revenue, Apple is the largest US-headquartered IT company, with net sales of US$478.8 billion in the fiscal year ended 26 September 2026. Microsoft is second with US$331.8 billion for the year to June 2026 and NVIDIA third with US$215.9 billion for the year to January 2026. Amazon and Alphabet report more revenue but are not counted here because retail and advertising are their main businesses.
Why are Amazon, Google and Meta not in the list
The list includes companies whose main revenue comes from software, IT services, technology hardware or semiconductors. Amazon earns most of its revenue from online retail, and Alphabet and Meta from advertising. Their cloud units are large, but the ranking uses whole-company revenue and does not split out segments. Counted on total revenue, Amazon would rank first, Alphabet third and Meta sixth.
Why is Accenture not ranked as an American IT company
Accenture plc is incorporated in Ireland and its EDGAR record gives a Dublin business address, although it has a large US business and files with the SEC. This list requires both US incorporation and a US head office. Its fiscal 2026 revenue of US$74.2 billion would otherwise have placed it sixth, ahead of IBM.
Which is the largest IT services company in the USA
Among companies that are mainly IT services firms, Cognizant is the largest by revenue, with US$21.1 billion in 2025, followed by Kyndryl with US$15.1 billion and DXC Technology with US$12.6 billion. IBM also earns a large share of its revenue from consulting, but it is ranked on its whole business, which includes software and infrastructure.
Which US IT company has the most employees
Among the 50 companies, Cognizant reports the largest workforce, approximately 351,600 people at the end of 2025, most of them outside the United States. Microsoft follows with about 223,000 full-time staff and Amphenol with about 170,000. Apple reports about 167,000 full-time equivalent employees. IBM and Jabil do not state a total headcount in their 10-K filings.
Which US tech companies grew fastest in the latest fiscal year
Memory and AI hardware makers grew fastest. Micron's revenue more than tripled to US$133.2 billion and Sandisk's rose 175%. Super Micro Computer grew 78%, NVIDIA 65%, Amphenol 52% (helped by acquisitions) and Marvell 42%. Insight Enterprises, Qualcomm, DXC Technology and Intel reported lower revenue than a year earlier.
Where are most of the largest US IT companies based
Twenty-six of the 50 have their head office in California, mainly in Santa Clara, San Jose and the surrounding Silicon Valley area. Texas has four, including Dell in Round Rock and Oracle in Austin, and New York State has three: IBM, Corning and Kyndryl. Microsoft in Redmond, Washington, and Micron in Boise, Idaho, are the largest outside those states.
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