IT Services & Outsourcing

Top 50 IT Services Companies: 2026 Edition

The 50 largest IT services companies of 2026, ranked by IT services revenue (consulting, integration, managed services) from filings and results releases.

IT services companies design, build, integrate and operate information technology for other organisations. The category covers technology consulting, systems integration, application development and maintenance, and the managed operation of data centres, networks, cloud platforms and end-user computing. This list ranks the 50 largest providers by revenue from those activities, using each company's latest full fiscal year as published in annual reports, securities filings and results releases.

Accenture leads with fiscal 2026 revenues of US$74,183 million, more than twice the next company, NTT DATA Group. The rest of the top ten mixes Indian offshore providers (TCS, Infosys), European and American groups (Capgemini, Cognizant), the IT services segments of diversified technology groups (IBM Consulting, Hitachi's Digital Systems & Services), the group revenue of Fujitsu and the US government contractor Leidos; the infrastructure specialist Kyndryl follows in 11th place. Together, the 49 companies ranked on revenue reported the equivalent of about US$471 billion, and the top ten accounted for about 61% of that total.

The list differs from this site's ranking of the largest IT outsourcing companies in scope. Outsourcing rankings count whole-company revenue from contracted delivery. This page counts only IT services revenue: for diversified groups such as IBM, Hitachi, Deutsche Telekom, Samsung SDS, Indra and Insight it uses the reported IT services segment, which brings infrastructure and consulting businesses into the ranking that outsourcing tables usually leave out, and leaves out business process and non-IT activities of those groups.

Contents
  1. Overview
  2. Market context
  3. How the ranking was built
  4. Methodology
  5. The list
  6. Full ranking table
  7. By country
  8. Notable changes in 2026
  9. Alternatives by use case
  10. Frequently asked questions
  11. See also

At a glance

  1. Accenture — Global programmes that combine consulting with long-term run contracts
  2. NTT DATA Group — Japanese public-sector and financial-services systems, and global data-centre capacity
  3. Tata Consultancy Services (TCS) — Large, long-running application and infrastructure contracts delivered from India
  4. Capgemini — European multinationals and engineering-heavy transformation programmes
  5. Fujitsu — Japanese enterprise and public-sector modernisation programmes
  6. Cognizant — Health-sciences and financial-services clients in North America
  7. IBM Consulting — Clients standardised on IBM software, Red Hat and hybrid cloud
  8. Infosys — Large application and infrastructure estates, financial-services clients
  9. Hitachi (Digital Systems & Services) — Japanese public and financial systems; Lumada-based industrial digital projects
  10. Leidos — US federal civilian, defence and health agencies
  11. Kyndryl — Mission-critical infrastructure run services, including mainframe estates
  12. HCLTech — Infrastructure outsourcing and engineering services
  13. DXC Technology — Running and modernising large legacy estates; insurance carriers
  14. CGI — Government and utilities clients in North America and Europe
  15. Booz Allen Hamilton — US defence, intelligence and civil agencies
  16. Wipro — Infrastructure and application outsourcing; financial-services consulting
  17. CACI International — US national security agencies
  18. Atos — European public-sector and industrial infrastructure contracts
  19. SAIC (Science Applications International Corp.) — US civilian and defence IT modernisation
  20. Sopra Steria — European banks and public administrations
  21. Tech Mahindra — Telecom operators and network modernisation
  22. EPAM Systems — Complex software engineering for financial, retail and life-sciences clients
  23. SCSK — Japanese manufacturing, distribution and financial clients
  24. LTM (formerly LTIMindtree) — Banking, manufacturing and consumer clients needing mid-size Indian delivery
  25. Amdocs — Communications service providers
  26. T-Systems (Deutsche Telekom) — German and European enterprises and public bodies
  27. Samsung SDS (IT services) — Samsung affiliates and Korean public and financial clients
  28. Everforth (formerly ASGN) — US commercial and federal clients buying consulting plus contract technologists
  29. Indra Group (Minsait) — Spanish and Latin American public administrations, banks and utilities
  30. Reply — European clients wanting specialist consulting units
  31. Rackspace Technology — Mid-market and enterprise workloads needing managed cloud operations
  32. Formula Systems — Israeli enterprises and public bodies
  33. Globant — Consumer-facing digital products and AI-led transformation
  34. Chinasoft International — Chinese technology companies and large domestic enterprises
  35. Tieto (formerly Tietoevry) — Nordic public sector, banks and healthcare providers
  36. Unisys — Public-sector and financial clients with Unisys mainframe estates
  37. ICF International — US federal civilian agencies and utilities
  38. Coforge — Insurance, banking and travel clients
  39. Insight Enterprises (services) — Organisations combining technology procurement with managed services
  40. adesso — German-speaking public-sector, insurance and banking clients
  41. Persistent Systems — Software companies, banks and healthcare clients
  42. Hexaware Technologies — Mid-market outsourcing with automation
  43. Nagarro — Mid-size digital engineering programmes
  44. Endava — Payments, banking and insurance clients
  45. GFT Technologies — Banks and insurers modernising core systems
  46. Zensar Technologies — Mid-size clients in hi-tech, manufacturing and financial services
  47. Sify Technologies — Indian enterprises needing data-centre and network services
  48. Grid Dynamics — Retailers and technology companies
  49. The Hackett Group — Back-office transformation and Oracle/SAP implementations
  50. Nomura Research Institute (NRI) — Japanese financial-services and industrial clients

Overview

IT services is the part of the technology industry that sells labour, expertise and operated capacity rather than products. Research firms usually divide it into three layers. Consulting covers technology strategy, architecture and transformation advice. Implementation and systems integration covers building and connecting applications, migrating workloads to cloud platforms, and deploying enterprise software such as SAP, Oracle, Salesforce and ServiceNow. Managed services covers running infrastructure, applications, networks, security operations and end-user computing under multi-year contracts, often with service-level guarantees.

The category overlaps with several adjacent ones. IT outsourcing is a contracting model inside IT services: a client hands an ongoing function to a provider. Software development companies focus on building custom software, a subset of implementation work. Cloud consulting companies and managed service providers specialise in one layer, and business process outsourcing (BPO) moves non-IT processes such as finance, HR or customer service to a provider, which is why BPO revenue is excluded here wherever a company reports it separately.

Accenture's own revenue split illustrates the balance between the layers. In fiscal 2026 it earned US$36,883 million from consulting and US$37,300 million from managed services. Amdocs, which serves telecom operators, earned about 64% of its revenue from managed services, while IBM's consulting segment divides into Strategy and Technology (US$11,537 million) and Intelligent Operations (US$9,518 million).

Market context

The largest IT services firms grew slowly in their latest fiscal years. TCS reported revenue growth of 4.6% in rupees but a 2.4% decline in constant currency; Infosys grew from US$19,277 million to US$20,158 million; Kyndryl's revenue was flat as reported and down 3% in constant currency; and DXC's revenue fell from US$12,871 million to US$12,644 million. Growth was concentrated in mid-sized firms and in acquisitions: Coforge grew 29.2% in US dollars, Persistent Systems 17.4%, and CACI 10.9%.

Consolidation continued through 2025 and 2026. Capgemini's year-end headcount rose by 82,300 to 423,400, mainly because of the integration of WNS. Sumitomo Corporation took SCSK private through a tender offer and share consolidation, and SCSK was delisted from the Tokyo Stock Exchange on 12 March 2026. Tietoevry sold its Tech Services infrastructure business, completed on 2 September 2025, and renamed itself Tieto. Atos cut its headcount by 19.1% in 2025 under its Genesis restructuring programme.

Several companies attributed growth to AI and cloud. Samsung SDS's cloud revenue grew 15.4% to KRW 2.6802 trillion; Chinasoft International said sales of its AI products and services doubled to about RMB 2.00 billion; and LTM described a shift to an AI-centric organisation. US government IT contractors faced a different market: Booz Allen Hamilton's revenue fell from US$11,980 million to US$11,217 million and ICF's by 7.3%, while Leidos still grew 3%.

How the ranking was built

The ranking metric is IT services revenue in the latest full fiscal year published by 13 November 2026, converted to US dollars. For companies whose revenue is essentially all IT services, total revenue is used. For diversified groups, the reported IT services segment is used instead: IBM Consulting, Hitachi Digital Systems & Services, Deutsche Telekom's Systems Solutions segment (T-Systems), Samsung SDS's IT service business, Indra's Minsait division and Insight Enterprises' services net sales.

Fiscal years differ. Most Indian and Japanese companies close on 31 March, Accenture on 31 August, CGI on 30 September, Amdocs on 30 September and CACI on 30 June; European and most US companies use the calendar year. Each entry states its fiscal year. Non-dollar figures are converted at the Federal Reserve's 2025 annual average rates (for example €1 = US$1.1306, US$1 = ¥149.5686 and US$1 = ₹87.1468), regardless of fiscal year end.

Three exceptions are disclosed. Fujitsu is ranked on group revenue of ¥3,502.9 billion, which includes hardware, because no Service Solutions revenue total for fiscal 2025 could be verified from a source opened for this list. Endava is ranked on fiscal 2025 accounts because it announced a restatement of fiscal 2026 results. Nomura Research Institute is placed after the revenue-ranked group by headcount because the revenue on its corporate overview page appears to contain a unit error.

Methodology

Entries are ranked strictly by IT services revenue for the latest full fiscal year, in US dollars. Total revenue is used for companies whose business is IT services; reported segment revenue is used for IBM, Hitachi, Deutsche Telekom (T-Systems), Samsung SDS, Indra (Minsait) and Insight Enterprises. Non-dollar amounts are converted at Federal Reserve 2025 annual average rates. Every figure was taken from a company filing, results release or corporate page, or from a named news or data provider's report of a results release where the company document could not be retrieved (TCS, HCLTech, LTM, SCSK, Chinasoft and Fujitsu). No figure was estimated.

Fujitsu is ranked on group revenue, which overstates its services revenue, because no verified segment total was available. Forty-nine companies are ranked by revenue; Nomura Research Institute, whose published revenue figure could not be used, is ranked 50th by headcount, as the list's rules require for companies without a usable revenue figure. NEC, which reports an IT Services segment, and Orange Business were left out because their fiscal 2025 figures could not be verified from a source opened for this edition. Business process outsourcing specialists such as Genpact and EXL are excluded because their revenue is mainly non-IT process work.

Compared with this site's list of the top IT outsourcing companies in the world, which ranks whole-company revenue of outsourcing providers, this list measures IT services revenue only. That difference adds infrastructure and consulting businesses held inside larger groups (IBM Consulting, Hitachi, T-Systems, Insight) and removes BPO-led firms. Compared with the list of top software development companies, it includes managed infrastructure providers such as Kyndryl, DXC, Rackspace and Sify, and US government IT contractors.

The list

1

Accenture

Best for: Global programmes that combine consulting with long-term run contracts

Accenture is the largest company in this ranking, with fiscal 2026 revenues of US$74,183 million, up 6% in US dollars. Its 10-K splits revenue almost evenly by type of work: US$36,883 million from consulting and US$37,300 million from managed services, the latter covering application, infrastructure and operations outsourcing. The Americas generated US$36,547 million, EMEA US$26,959 million and Asia Pacific US$10,678 million. The company is domiciled in Dublin, Ireland, and listed on the New York Stock Exchange. It reported new bookings of US$84.5 billion for the year and approximately 814,000 people at 31 August 2026, which makes it both the largest earner and the largest employer in this ranking.

Services

  • Strategy and technology consulting
  • Systems integration and cloud migration
  • Application and infrastructure managed services
  • Operations (business process) services
Revenue (FY2026 (to 31 Aug 2026))
US$74,183m
Employees
c. 814,000 (31 Aug 2026)
Headquarters
Dublin, Ireland
Listed on
New York Stock Exchange
Core services
Strategy and technology consulting; Systems integration and cloud migration; Application and infrastructure managed services
2

NTT DATA Group

Best for: Japanese public-sector and financial-services systems, and global data-centre capacity

NTT DATA Group, headquartered in Toyosu, Tokyo, and established in 1988, reported net sales of ¥5,004.6 billion for fiscal 2025, up 7.9% from ¥4,638.7 billion, with operating profit of ¥488.2 billion. The company reports Japan, Overseas and a separate global technology and services (GTSS) business that holds its data-centre and network operations, which is why it sits closer to infrastructure services than most systems integrators. Its corporate profile lists 197,800 consolidated employees at 31 March 2025 and operations in more than 70 countries. Its results presentation describes record highs across its key financial indicators for the year.

Services

  • Systems integration for public, financial and enterprise clients
  • Global technology and data-centre services
  • Consulting and application services
  • Managed infrastructure and network services
Revenue (FY2025 (to 31 Mar 2026))
¥5,004.6bn (≈US$33.46bn)
Employees
197,800 (31 Mar 2025)
Headquarters
Tokyo, Japan
Core services
Systems integration for public, financial and enterprise clients; Global technology and data-centre services; Consulting and application services
3

Tata Consultancy Services (TCS)

Best for: Large, long-running application and infrastructure contracts delivered from India

Tata Consultancy Services, part of the Tata group, reported revenue of ₹2,67,021 crore for fiscal 2026, up 4.6% year on year but down 2.4% in constant currency. Total contract value signed during the year was US$40.7 billion, including five mega deals. Headcount stood at 584,519 at 31 March 2026, 23,460 lower than a year earlier after a restructuring programme carried out during the year. TCS remains the largest Indian provider and the second-largest employer in this list after Accenture.

Services

  • Application development and maintenance
  • Cloud, infrastructure and cyber security services
  • Consulting and enterprise platforms
  • Business process services
Revenue (FY2026 (to 31 Mar 2026))
₹2,67,021 crore (≈US$30.64bn)
Employees
584,519 (31 Mar 2026)
Core services
Application development and maintenance; Cloud, infrastructure and cyber security services; Consulting and enterprise platforms
4

Capgemini

Best for: European multinationals and engineering-heavy transformation programmes

Capgemini, based in Paris, reported 2025 revenues of €22,465 million, up 1.7% reported and 3.4% at constant exchange rates, with an operating margin of 13.3%. Bookings rose 3.9% at constant rates to €24.4 billion. Headcount reached 423,400 at the end of 2025, up 82,300 in a year, mainly because of the integration of WNS team members; the offshore workforce rose 42% to 279,200, or 66% of the total. The WNS acquisition added a large business process services arm to a group already active in consulting, applications, cloud infrastructure and engineering services. Fourth-quarter growth at constant exchange rates was 10.6%, largely reflecting the consolidation.

Services

  • Strategy and transformation consulting
  • Applications and technology services
  • Engineering and R&D services
  • Operations and business process services (WNS)
Revenue (2025)
€22,465m (≈US$25.40bn)
Employees
423,400 (31 Dec 2025)
Headquarters
Paris, France
Core services
Strategy and transformation consulting; Applications and technology services; Engineering and R&D services
5

Fujitsu

Best for: Japanese enterprise and public-sector modernisation programmes

Fujitsu's fiscal 2025 revenue was ¥3,502.9 billion, down 1.3% year on year, according to the results summary published on 28 April 2026; adjusted operating profit reached ¥390.5 billion, of which Service Solutions contributed ¥361.4 billion. A Service Solutions revenue total for the year could not be verified from a source opened for this list, so Fujitsu is ranked on group revenue, which also includes hardware and device sales; this overstates its services revenue and is flagged in the methodology. The group's first-quarter fiscal 2026 report shows Service Solutions revenue of ¥548.9 billion for the quarter, up 6.7%, driven by its Uvance and modernisation businesses.

Services

  • Service Solutions: systems integration, Uvance and modernisation
  • Managed and cloud services
  • Hardware Solutions: servers, storage and network products
  • Ubiquitous Solutions: PCs and devices
Revenue (FY2025 (to 31 Mar 2026))
¥3,502.9bn (group) (≈US$23.42bn)
Core services
Service Solutions: systems integration, Uvance and modernisation; Managed and cloud services; Hardware Solutions: servers, storage and network products
6

Cognizant

Best for: Health-sciences and financial-services clients in North America

Cognizant, headquartered in Teaneck, New Jersey, reported 2025 revenues of US$21,108 million, up 7.0% on 2024. It goes to market through four industry segments: Health Sciences, Financial Services, Products and Resources, and Communications, Media and Technology. At 31 December 2025 it had approximately 351,600 employees, of whom 256,900 were in India, 41,600 in North America and 14,600 in continental Europe. Its revenue sits within US$100 million of IBM's consulting segment, so the two swap positions easily from year to year. The company's delivery model is close to that of the large Indian providers, but its listing, headquarters and much of its client base are in the United States.

Services

  • Application development and maintenance
  • Cloud, infrastructure and security services
  • Industry consulting (health sciences, financial services)
  • Intelligent process automation
Revenue (2025)
US$21,108m
Employees
c. 351,600 (31 Dec 2025)
Headquarters
Teaneck, New Jersey, US
Listed on
Nasdaq
Core services
Application development and maintenance; Cloud, infrastructure and security services; Industry consulting (health sciences, financial services)
7

IBM Consulting

Best for: Clients standardised on IBM software, Red Hat and hybrid cloud

IBM Consulting is one of IBM's three reporting segments, alongside Software and Infrastructure. In 2025 it generated US$21,055 million of revenue, up 1.8% as reported and 0.4% at constant currency. The segment has two lines: Strategy and Technology (US$11,537 million) and Intelligent Operations (US$9,518 million). IBM's fourth-quarter release put consulting revenue for the quarter at US$5.3 billion, up 3%. Only the consulting segment is counted here: IBM's Infrastructure segment is mainly hardware and support, and its former infrastructure-services unit was spun off as Kyndryl in 2021. IBM is headquartered in Armonk, New York.

Services

  • Strategy and Technology: business and technology consulting
  • Intelligent Operations: application and process operations
  • Hybrid cloud and AI implementation
  • Enterprise application (SAP, Oracle) services
Revenue (2025)
US$21,055m (segment)
Headquarters
Armonk, New York, US
Listed on
New York Stock Exchange (IBM)
Core services
Strategy and Technology: business and technology consulting; Intelligent Operations: application and process operations; Hybrid cloud and AI implementation
8

Infosys

Best for: Large application and infrastructure estates, financial-services clients

Infosys, incorporated in Bengaluru, reported fiscal 2026 revenues of US$20,158 million, up from US$19,277 million in fiscal 2025. Export revenue made up 97.1% of the total, reflecting a client base mostly outside India. Its employee count grew from 259,619 in March 2021 to 328,594 at 31 March 2026. The company reports in US dollars under IFRS in its Form 20-F, which makes it one of the few Indian providers whose ranking figure needs no currency conversion.

Services

  • Digital transformation and cloud services
  • Application development and maintenance
  • Infrastructure management
  • Business process management
Revenue (FY2026 (to 31 Mar 2026))
US$20,158m
Employees
328,594 (31 Mar 2026)
Headquarters
Bengaluru, India
Core services
Digital transformation and cloud services; Application development and maintenance; Infrastructure management
9

Hitachi (Digital Systems & Services)

Best for: Japanese public and financial systems; Lumada-based industrial digital projects

Hitachi's Digital Systems & Services segment recorded total revenues of ¥2,940.1 billion in fiscal 2025, including ¥183.5 billion of intersegment sales, and segment profit (adjusted EBITA) of ¥450.1 billion. Hitachi defines the segment as digital solutions (system integration, cloud services and consulting), IT products such as storage and servers, software and ATMs, so the figure contains some hardware. The company's 27 April 2026 release cited solid digital demand in Japan in this sector as one driver of group revenue growth to ¥10,586.8 billion.

Services

  • System integration, cloud and consulting services
  • Software
  • IT products (storage, servers)
  • ATMs
Revenue (FY2025 (to 31 Mar 2026))
¥2,940.1bn (segment) (≈US$19.66bn)
Headquarters
Tokyo, Japan
Core services
System integration, cloud and consulting services; Software; IT products (storage, servers)
10

Leidos

Best for: US federal civilian, defence and health agencies

Leidos, based in Reston, Virginia, reported revenues of US$17,174 million for fiscal 2025, up 3% from US$16,662 million. It is organised into four segments: National Security & Digital, Health & Civil, Commercial & International and Defense Systems. At 2 January 2026 it employed approximately 47,000 people, about 41,900 of them in the United States, with the rest spread across roughly 45 countries. The company is included because a large share of its work is IT modernisation, systems integration and managed IT for federal agencies, but its Defense Systems segment also builds hardware, so not all revenue is IT services.

Services

  • National security IT and digital modernisation
  • Health and civil agency IT
  • Commercial and international services
  • Defense systems engineering
Revenue (2025 (to 2 Jan 2026))
US$17,174m
Employees
c. 47,000 (2 Jan 2026)
Headquarters
Reston, Virginia, US
Listed on
New York Stock Exchange
Core services
National security IT and digital modernisation; Health and civil agency IT; Commercial and international services
11

Kyndryl

Best for: Mission-critical infrastructure run services, including mainframe estates

Kyndryl was formed in November 2021 when IBM spun off the infrastructure services unit of its Global Technology Services segment. Headquartered at One Vanderbilt Avenue, New York, it reported fiscal 2026 revenue of US$15,092 million, flat on fiscal 2025 as reported and down 3% in constant currency. It reports four geographic segments: United States, Japan, Principal Markets and Strategic Markets. United States revenue was US$3.8 billion, down 2% because low-margin contracts signed before the spin-off expired, while Japan contributed US$2.3 billion. It had approximately 72,000 employees in 60 countries, about 90% of them outside the US.

Services

  • Mainframe and data-centre operations
  • Cloud and hybrid infrastructure management
  • Network, edge and security services
  • Applications, data and AI services
Revenue (FY2026 (to 31 Mar 2026))
US$15,092m
Employees
c. 72,000 (31 Mar 2026)
Headquarters
New York City, US
Listed on
New York Stock Exchange
Core services
Mainframe and data-centre operations; Cloud and hybrid infrastructure management; Network, edge and security services
12

HCLTech

Best for: Infrastructure outsourcing and engineering services

HCLTech, headquartered in Noida, reported fiscal 2026 revenue of ₹1,30,144 crore, 11.18% higher than in fiscal 2025, according to a Press Trust of India report of its results. Net profit for the year declined 4.3% to ₹16,642 crore; fourth-quarter revenue rose 12.34% to ₹33,981 crore. Management guided to 1-4% constant-currency revenue growth for fiscal 2027 and described the demand environment as highly volatile, citing tariffs and softer discretionary spending. On the same exchange-rate basis as the rest of this list, its fiscal 2026 revenue converts to about US$14.9 billion, placing it just behind Kyndryl.

Services

  • Infrastructure and cloud managed services
  • Application and digital engineering services
  • Engineering and R&D services
  • Digital and AI services
Revenue (FY2026 (to 31 Mar 2026))
₹1,30,144 crore (≈US$14.93bn)
Headquarters
Noida, India
Core services
Infrastructure and cloud managed services; Application and digital engineering services; Engineering and R&D services
13

DXC Technology

Best for: Running and modernising large legacy estates; insurance carriers

DXC Technology was created by the merger of Computer Sciences Corporation with the Enterprise Services business of Hewlett Packard Enterprise. It is based in Ashburn, Virginia, and reported fiscal 2026 revenues of US$12,644 million, down from US$12,871 million, with net income falling to US$28 million. DXC reports three segments: Consulting & Engineering Services, Global Infrastructure Services and Insurance Software & Services. It describes itself as modernising, securing and operating complex technology estates and had approximately 115,000 employees in 60 countries.

Services

  • Consulting & Engineering Services
  • Global Infrastructure Services (cloud, workplace, security)
  • Insurance Software & Services
  • Mainframe and legacy estate operations
Revenue (FY2026 (to 31 Mar 2026))
US$12,644m
Employees
c. 115,000
Headquarters
Ashburn, Virginia, US
Listed on
New York Stock Exchange
Core services
Consulting & Engineering Services; Global Infrastructure Services (cloud, workplace, security); Insurance Software & Services
14

CGI

Best for: Government and utilities clients in North America and Europe

CGI reported fiscal 2026 revenue of C$16.57 billion, up 4.2% year on year or 2.2% in constant currency, with earnings before income taxes of C$2,479.7 million. Fourth-quarter revenue was C$4.15 billion and bookings were C$4.53 billion, a book-to-bill ratio of 109.2%. At 30 September 2026 the company had approximately 94,000 consultants and professionals worldwide. CGI's model combines consulting and systems integration with long-term managed IT and business process contracts, and it continues to grow partly through acquisitions; during the fourth quarter it invested in acquired businesses alongside C$89.4 million of reinvestment in its own operations.

Services

  • Business and IT consulting
  • Systems integration
  • Managed IT and business process services
  • Intellectual-property-based solutions
Revenue (FY2026 (to 30 Sep 2026))
C$16.57bn (≈US$11.86bn)
Employees
c. 94,000 (30 Sep 2026)
Core services
Business and IT consulting; Systems integration; Managed IT and business process services
15

Booz Allen Hamilton

Best for: US defence, intelligence and civil agencies

Booz Allen Hamilton, headquartered in McLean, Virginia, reported fiscal 2026 revenue of US$11,217 million, down from US$11,980 million the previous year; excluding billable expenses, revenue was US$7,767 million. At 31 March 2026 the company employed approximately 31,500 people, including 28,800 customer-facing staff, working in 23 countries. Booz Allen is ranked on total GAAP revenue for consistency with other entries. Its work spans technology consulting, systems engineering, cyber security and AI for defence, intelligence and civil agencies, which places it in the government IT services segment.

Services

  • Defence and intelligence technology services
  • Civil agency digital modernisation
  • Cyber security
  • AI and data engineering
Revenue (FY2026 (to 31 Mar 2026))
US$11,217m
Employees
c. 31,500 (31 Mar 2026)
Headquarters
McLean, Virginia, US
Listed on
New York Stock Exchange
Core services
Defence and intelligence technology services; Civil agency digital modernisation; Cyber security
16

Wipro

Best for: Infrastructure and application outsourcing; financial-services consulting

Wipro, incorporated in Bengaluru, reported fiscal 2026 revenues of ₹926,240 million under IFRS, up from ₹890,884 million in fiscal 2025. Its Form 20-F gives a convenience translation of US$9,871 million at the 31 March 2026 rate; this list instead converts at the 2025 Federal Reserve average for consistency with other entries. The company describes a workforce of more than 240,000 employees and business partners across six continents. Wipro's revenue mix covers cloud and infrastructure, applications, consulting and engineering services.

Services

  • Cloud and infrastructure services
  • Application and engineering services
  • Consulting services
  • Business process services
Revenue (FY2026 (to 31 Mar 2026))
₹926,240m (≈US$10.63bn)
Employees
over 240,000 employees and business partners
Headquarters
Bengaluru, India
Core services
Cloud and infrastructure services; Application and engineering services; Consulting services
17

CACI International

Best for: US national security agencies

CACI International, based in Reston, Virginia, reported fiscal 2026 revenues of US$9,567.8 million, up 10.9% from US$8,627.8 million. Founded in 1962 as a simulation technology company, it now describes itself as a provider of technology and expertise supporting national security missions and government modernisation. Its operations are conducted through subsidiaries mainly in the United States and Europe. It is ranked here on total revenue; some of that revenue comes from software and hardware-based mission technology rather than pure services.

Services

  • Enterprise IT and network modernisation
  • Mission software and C4ISR technology
  • Intelligence and analytics expertise
  • Cyber and electronic warfare
Revenue (FY2026 (to 30 Jun 2026))
US$9,568m
Headquarters
Reston, Virginia, US
Listed on
New York Stock Exchange
Core services
Enterprise IT and network modernisation; Mission software and C4ISR technology; Intelligence and analytics expertise
18

Atos

Best for: European public-sector and industrial infrastructure contracts

Atos Group reported 2025 revenue of €8,001 million, in line with its target of more than €8 billion. The Atos strategic business unit, which holds the IT services activities, generated €6,963 million, down 16.2% organically, while Eviden revenue rose 6.7% to €1,039 million on deliveries such as the Jupiter supercomputer. North American revenue fell 27.9% organically after contract exits decided in 2024. Headcount was 63,193 at the end of 2025, 19.1% lower than a year earlier, as the Genesis restructuring programme cut the cost base. It is ranked here on total group revenue.

Services

  • Managed infrastructure and digital workplace services
  • Cloud and application services
  • Cyber security
  • Eviden: advanced computing and HPC
Revenue (2025)
€8,001m (≈US$9.05bn)
Employees
63,193 (31 Dec 2025)
Headquarters
Paris, France
Core services
Managed infrastructure and digital workplace services; Cloud and application services; Cyber security
19

SAIC (Science Applications International Corp.)

Best for: US civilian and defence IT modernisation

SAIC, headquartered in Reston, Virginia, reported revenues of US$7,262 million for the year to 30 January 2026, down 3% from US$7,479 million. Customers include the Department of Defense, NASA, the Department of Justice, the Department of Homeland Security and members of the intelligence community, served through approximately 1,700 active contracts and task orders. The company has approximately 23,000 employees. SAIC reorganised its business at the start of fiscal 2025 and is ranked on total revenue.

Services

  • Enterprise IT modernisation and cloud
  • Mission and systems integration
  • Digital engineering
  • Managed IT services for civilian and defence agencies
Revenue (FY2026 (to 30 Jan 2026))
US$7,262m
Employees
c. 23,000
Headquarters
Reston, Virginia, US
Listed on
Nasdaq
Core services
Enterprise IT modernisation and cloud; Mission and systems integration; Digital engineering
20

Sopra Steria

Best for: European banks and public administrations

Sopra Steria reported 2025 revenue of €5,648.0 million, down 2.2% both reported and organically, with organic growth returning in the fourth quarter at 1.8%. Its operating margin on business activity was 9.5%. Headcount stood at 51,275 at the end of 2025, compared with 50,988 a year earlier, with the acquisitions of Neocase and Aurexia adding about 230 people. The group combines consulting and systems integration with infrastructure management, business process services and its own software. It is ranked one place above Tech Mahindra because its euro revenue converts to about US$6,386 million, a margin of less than US$1 million.

Services

  • Consulting and systems integration
  • Infrastructure and cloud management
  • Business process services
  • Software
Revenue (2025)
€5,648.0m (≈US$6.39bn)
Employees
51,275 (31 Dec 2025)
Headquarters
Paris, France
Core services
Consulting and systems integration; Infrastructure and cloud management; Business process services
21

Tech Mahindra

Best for: Telecom operators and network modernisation

Tech Mahindra, part of the Mahindra group, reported fiscal 2026 revenue of US$6,385 million, up 1.9% reported and 0.6% in constant currency. EBIT rose 31.4% to US$797 million, an EBIT margin of 12.6%, and new deal wins reached US$3,794 million in total contract value, up 41.6%. Total headcount at the end of March 2026 was 147,623, 1,108 fewer than a year earlier, with IT attrition of 12.1%. The release was issued from Mumbai and quotes chief executive Mohit Joshi on the year's results.

Services

  • Network and telecoms IT services
  • Application and cloud services
  • Infrastructure management
  • Business process services
Revenue (FY2026 (to 31 Mar 2026))
US$6,385m
Employees
147,623 (31 Mar 2026)
Listed on
NSE
Core services
Network and telecoms IT services; Application and cloud services; Infrastructure management
22

EPAM Systems

Best for: Complex software engineering for financial, retail and life-sciences clients

EPAM Systems, headquartered in Newtown, Pennsylvania, reported 2025 revenues of US$5,457.1 million, up from US$4,727.9 million in 2024. Its predecessor entity was founded in 1993 and the company was incorporated in Delaware in 2002. At 31 December 2025 it had approximately 56,600 delivery personnel; India had become its largest delivery location, with about 12,200 delivery professionals after adding roughly 2,150 during the year. EPAM is more engineering-oriented than most firms in this ranking and less involved in infrastructure outsourcing, but it is included because it sells consulting, integration and managed services as well as custom software.

Services

  • Software and platform engineering
  • Cloud and data engineering
  • Consulting and design
  • Managed services
Revenue (2025)
US$5,457m
Employees
c. 56,600 delivery personnel (31 Dec 2025)
Headquarters
Newtown, Pennsylvania, US
Listed on
New York Stock Exchange
Core services
Software and platform engineering; Cloud and data engineering; Consulting and design
23

SCSK

Best for: Japanese manufacturing, distribution and financial clients

SCSK reported sales of ¥780.326 billion for the year to 31 March 2026, up from ¥596.065 billion, with operating profit of ¥86.260 billion and net income of ¥66.870 billion. Following a tender offer and share consolidation by Sumitomo Corporation, it was delisted from the Tokyo Stock Exchange on 12 March 2026. For the year to March 2027 it forecasts sales of ¥820 billion and operating profit of ¥100 billion. SCSK provides systems integration, infrastructure services and software development mainly to Japanese companies. Its sales rose by about 31% in the year, which places it in the top 25 of this ranking.

Services

  • Systems integration
  • IT infrastructure and managed services
  • Software development
  • BPO and IT products
Revenue (FY2025 (to 31 Mar 2026))
¥780.3bn (≈US$5.22bn)
Listed on
Delisted 12 March 2026 (Sumitomo Corporation)
Core services
Systems integration; IT infrastructure and managed services; Software development
24

LTM (formerly LTIMindtree)

Best for: Banking, manufacturing and consumer clients needing mid-size Indian delivery

LTM, the company formerly called LTIMindtree and part of the Larsen & Toubro group, reported fiscal 2026 revenue from operations of ₹42,307.6 crore, up 11.31%, and net profit of ₹5,018.1 crore. Fourth-quarter revenue rose 15.55% year on year to ₹11,291.7 crore. The company had 87,950 employees at the end of the year, compared with 84,307 a year earlier. Chief executive Venu Lambu described a shift to an AI-centric organisation built around the company's BlueVerse platform and a cost programme called Fit4Future.

Services

  • Application development and maintenance
  • Cloud and infrastructure services
  • Enterprise platforms (SAP, Salesforce)
  • Data and AI services
Revenue (FY2026 (to 31 Mar 2026))
₹42,307.6 crore (≈US$4.85bn)
Employees
87,950 (31 Mar 2026)
Core services
Application development and maintenance; Cloud and infrastructure services; Enterprise platforms (SAP, Salesforce)
25

Amdocs

Best for: Communications service providers

Amdocs reported fiscal 2026 revenue of US$4,697 million, up 3.6% as reported and 3.0% in constant currency. Managed services revenue was US$3,023 million, about 64% of the total, which is why the company is included in an IT services ranking rather than only among software vendors. During the year it announced an eight-year strategic agreement with AT&T and said it was entering the insurance industry. Amdocs' clients are mainly telecom and media operators, for which it runs billing, customer-management and network-related IT under multi-year contracts.

Services

  • Managed services for telecom IT estates
  • BSS/OSS software and integration
  • Cloud migration services
  • Network and digital services
Revenue (FY2026 (to 30 Sep 2026))
US$4,697m
Core services
Managed services for telecom IT estates; BSS/OSS software and integration; Cloud migration services
26

T-Systems (Deutsche Telekom)

Best for: German and European enterprises and public bodies

T-Systems is reported as Deutsche Telekom's Systems Solutions segment. In 2025 the segment's total revenue rose 2.5% to €4,103 million and order entry rose 4.2% to €4,191 million. Adjusted EBITDA AL for the segment was €427 million. Deutsche Telekom described 2025 as an extremely successful year for T-Systems, ending with a strong fourth quarter in which segment revenue reached €1,066 million. T-Systems provides cloud and infrastructure operations, SAP and digital services, and security services, mainly to German and European enterprises and public-sector clients. Only the segment figure is counted here, not Deutsche Telekom's telecom revenue.

Services

  • Cloud and infrastructure services
  • Digital solutions and SAP services
  • Road charging and public-sector IT
  • Security services
Revenue (2025)
€4,103m (segment) (≈US$4.64bn)
Core services
Cloud and infrastructure services; Digital solutions and SAP services; Road charging and public-sector IT
27

Samsung SDS (IT services)

Best for: Samsung affiliates and Korean public and financial clients

Samsung SDS reported 2025 revenue of KRW 13.9299 trillion, but more than half of that came from logistics (KRW 7.3864 trillion), so only its IT service business is counted here. IT service revenue was KRW 6.5435 trillion, up 2.2%, and cloud revenue within it grew 15.4% to KRW 2.6802 trillion. The company attributes cloud growth to its Samsung Cloud Platform, GPU-as-a-service and managed services for financial-sector cloud migration. It plans to launch GPU-as-a-service on NVIDIA B300 hardware and to pursue data-centre design-build-operate projects.

Services

  • Cloud (CSP and MSP) services
  • Systems integration and outsourcing
  • ERP and SCM solutions
  • Generative AI services
Revenue (2025)
₩6.5435tn (IT service business) (≈US$4.60bn)
Core services
Cloud (CSP and MSP) services; Systems integration and outsourcing; ERP and SCM solutions
28

Everforth (formerly ASGN)

Best for: US commercial and federal clients buying consulting plus contract technologists

ASGN Incorporated, based in Glen Allen, Virginia, reported 2025 revenues of US$3,980.4 million, down from US$4,099.7 million. In November 2025 it announced a rebrand to Everforth, a parent brand uniting Apex Systems, Creative Circle, CyberCoders, ECS, GlideFast and TopBloc. The company describes itself as a provider of IT solutions to commercial and government sectors and reports commercial and federal government segments. Part of its revenue still comes from technology staffing rather than outcome-based services, which distinguishes it from systems integrators of similar size. Its ECS unit holds the federal contract backlog.

Services

  • IT consulting and solutions (commercial)
  • Federal government IT (ECS)
  • ServiceNow and Workday services (GlideFast, TopBloc)
  • Technology staffing (Apex Systems, CyberCoders)
Revenue (2025)
US$3,980.4m
Headquarters
Glen Allen, Virginia, US
Listed on
New York Stock Exchange
Core services
IT consulting and solutions (commercial); Federal government IT (ECS); ServiceNow and Workday services (GlideFast, TopBloc)
29

Indra Group (Minsait)

Best for: Spanish and Latin American public administrations, banks and utilities

Minsait is the IT and digital transformation division of Spain's Indra Group. In 2025 it recorded sales of €3.129 billion, up 5%, with acquisitions of Totalnet and MQA adding inorganic growth. Indra's group revenue was €5,457 million, but most of the rest comes from defence, air traffic management and mobility, so only Minsait is ranked. Minsait's backlog grew 9%. Indra's release attributes the year to strong performances in civil-sector business lines, including public administrations.

Services

  • Systems integration for public administrations
  • Financial-services and energy IT
  • Managed services and outsourcing
  • Digital and consulting services
Revenue (2025)
€3,129m (division) (≈US$3.54bn)
Core services
Systems integration for public administrations; Financial-services and energy IT; Managed services and outsourcing
30

Reply

Best for: European clients wanting specialist consulting units

Reply, based in Turin, reported consolidated 2025 turnover of €2,483.6 million, up 8.0% from €2,300.5 million. EBITDA rose to €467.6 million and EBIT to €391.7 million, with group net profit of €250.9 million. The group is organised as a network of specialised companies covering cloud, data, AI, digital services and systems integration. Group net profit rose to €250.9 million from €211.1 million. The results were approved by the board on 12 March 2026 for submission to the shareholders' meeting of 23 April 2026.

Services

  • Cloud and data consulting
  • Systems integration
  • Digital services and AI
  • Managed services
Revenue (2025)
€2,483.6m (≈US$2.81bn)
Headquarters
Turin, Italy
Core services
Cloud and data consulting; Systems integration; Digital services and AI
31

Rackspace Technology

Best for: Mid-market and enterprise workloads needing managed cloud operations

Rackspace Technology, headquartered in San Antonio, Texas, reported 2025 revenue of US$2,685.7 million, down 1.9% from US$2,737.1 million. It describes itself as a hybrid cloud and AI solutions company that designs, integrates and operates infrastructure, data foundations and software platforms, from governed private cloud to AI deployed in production. It reports public cloud and private cloud services separately. The company says it has around 5,000 employees, which it calls Rackers, including consultants and engineers.

Services

  • Private cloud and managed hosting
  • Public cloud managed services (AWS, Azure, Google Cloud)
  • Hybrid cloud and AI operations
  • Professional services
Revenue (2025)
US$2,685.7m
Employees
c. 5,000 Rackers
Headquarters
San Antonio, Texas, US
Listed on
Nasdaq
Core services
Private cloud and managed hosting; Public cloud managed services (AWS, Azure, Google Cloud); Hybrid cloud and AI operations
32

Formula Systems

Best for: Israeli enterprises and public bodies

Formula Systems (1985) is an Israeli holding company whose subsidiaries include Matrix IT, Michpal Technologies and InSync Staffing Solutions. Its 2025 revenues were US$2,627.1 million, up from US$2,218.4 million in 2024, according to its Form 20-F. Matrix IT, the largest subsidiary, provides IT services, outsourcing, software integration and infrastructure services in Israel, while other holdings add software products and staffing. Because Formula consolidates several businesses, part of its revenue is software rather than services. It files with the SEC as a foreign private issuer and its shares trade on Nasdaq.

Services

  • IT services and outsourcing (Matrix IT)
  • Software development and integration
  • Infrastructure and cloud services
  • Staffing (InSync)
Revenue (2025)
US$2,627.1m
Listed on
Nasdaq
Core services
IT services and outsourcing (Matrix IT); Software development and integration; Infrastructure and cloud services
33

Globant

Best for: Consumer-facing digital products and AI-led transformation

Globant was founded in 2003 by a group of co-founders that includes chairman and chief executive Martín Migoya. It reported 2025 revenues of US$2,454.9 million, up from US$2,415.7 million in 2024. Fixed-price work made up 28.0% of revenue in 2025, while licences, resales and other items made up 5.3%. Globant positions itself around digital engineering and AI rather than infrastructure outsourcing, and is ranked here between Formula Systems and Chinasoft International on converted revenue.

Services

  • Digital product engineering
  • AI and data services
  • Cloud and enterprise platforms
  • Design and consulting
Revenue (2025)
US$2,454.9m
Listed on
New York Stock Exchange
Core services
Digital product engineering; AI and data services; Cloud and enterprise platforms
34

Chinasoft International

Best for: Chinese technology companies and large domestic enterprises

Chinasoft International reported 2025 revenue of RMB 17.03 billion, up 0.50%, with service revenue rising 2.30% to RMB 16.69 billion; net profit fell 36.7%. Sales from its full-stack, full-scenario AI products and services doubled to about RMB 2.00 billion. Headcount rose 3.9% to 78,030, of whom 96.2% were technical staff. The company had 1,884 active clients, and the top five accounted for 57.9% of service revenue, a high degree of concentration. Chinasoft is the only mainland Chinese company in this ranking. Its figures come from a broker's summary of its audited annual results.

Services

  • Software and IT outsourcing services
  • Cloud and AI services
  • Full-stack AI products
  • Digital transformation consulting
Revenue (2025)
RMB 17.03bn (≈US$2.37bn)
Employees
78,030
Core services
Software and IT outsourcing services; Cloud and AI services; Full-stack AI products
35

Tieto (formerly Tietoevry)

Best for: Nordic public sector, banks and healthcare providers

Tieto reported 2025 revenue of €1,852.3 million from continuing operations, down from €1,879.5 million, with organic growth of -2%. In connection with a brand renewal, Tietoevry adopted the name Tieto and new segment names during 2025. The divestment of Tietoevry Tech Services was completed on 2 September 2025 and is reported as a discontinued operation. The company also divested Bekk Consulting and launched a €150 million share buyback. For 2026 it expects organic growth of -2% to 0% and an adjusted operating margin of 14.8-15.8%.

Services

  • Industry software (banking, care)
  • Consulting and digital services
  • Cloud and application services
  • Managed services
Revenue (2025)
€1,852.3m (≈US$2.09bn)
Core services
Industry software (banking, care); Consulting and digital services; Cloud and application services
36

Unisys

Best for: Public-sector and financial clients with Unisys mainframe estates

Unisys, based in Blue Bell, Pennsylvania, reported 2025 revenue of US$1,950.1 million, down from US$2,008.4 million. The company separates licence and support (L&S) revenue, US$428.1 million, from the rest of the business, US$1,522.0 million; the L&S line is tied to its ClearPath Forward enterprise computing platform. Gross profit was US$549.3 million. Its segments cover digital workspace services, cloud, applications and infrastructure, and enterprise computing solutions. Licence and support gross profit was US$293.9 million, more than the US$255.4 million earned by the rest of the business, which shows how much of Unisys's profit still depends on the ClearPath platform.

Services

  • Digital workplace solutions
  • Cloud, applications and infrastructure
  • Enterprise computing (ClearPath Forward)
  • Business process solutions
Revenue (2025)
US$1,950.1m
Headquarters
Blue Bell, Pennsylvania, US
Listed on
New York Stock Exchange
Core services
Digital workplace solutions; Cloud, applications and infrastructure; Enterprise computing (ClearPath Forward)
37

ICF International

Best for: US federal civilian agencies and utilities

ICF International, headquartered in Reston, Virginia, reported 2025 revenue of US$1,872.9 million, down 7.3% from US$2,019.8 million. Its principal operating subsidiary was founded in 1969, and the current company took the ICF International name in 2006. Backlog at the end of 2025 was US$3,405.0 million. ICF had approximately 8,400 full-time and part-time employees. Its work combines IT modernisation and digital services for civilian agencies with consulting for energy utilities and other commercial clients.

Services

  • Federal IT modernisation
  • Digital and data services
  • Energy and environment consulting
  • Engagement and communications services
Revenue (2025)
US$1,872.9m
Employees
c. 8,400 (31 Dec 2025)
Headquarters
Reston, Virginia, US
Listed on
Nasdaq
Core services
Federal IT modernisation; Digital and data services; Energy and environment consulting
38

Coforge

Best for: Insurance, banking and travel clients

Coforge reported fiscal 2026 revenue of US$1,870 million (INR 164,207 million), up 29.2% in US dollars and 35.9% in rupees, the highest growth rate among the companies in this list. EBITDA rose 68.2% in US-dollar terms to US$347 million, and the EBIT margin expanded by 370 basis points to 14.4%. The company entered fiscal 2027 with an executable order book of US$1.75 billion and planned an EBITDA margin above 20.5%. Coforge describes itself as an AI-native engineering services company, with offices in Princeton, New Jersey, and Greater Noida, India.

Services

  • Application engineering and modernisation
  • Cloud and infrastructure services
  • Data and AI services
  • Business process services
Revenue (FY2026 (to 31 Mar 2026))
US$1,870m
Core services
Application engineering and modernisation; Cloud and infrastructure services; Data and AI services
39

Insight Enterprises (services)

Best for: Organisations combining technology procurement with managed services

Insight Enterprises, headquartered in Chandler, Arizona, describes itself as a Fortune 500-ranked solutions integrator. Its 2025 total net sales were US$8,247.2 million, but US$6,531.0 million of that came from products, so only services net sales of US$1,716.2 million are counted here. Services net sales grew from US$1,686.1 million in 2024. In North America, software net sales fell 27% in 2025. Insight sells cloud, managed and professional services alongside hardware and software resale, which places it between a reseller and a services firm.

Services

  • Cloud and infrastructure services
  • Managed and professional services
  • Digital workplace and security
  • Hardware and software procurement
Revenue (2025)
US$1,716.2m (services)
Headquarters
Chandler, Arizona, US
Listed on
Nasdaq
Core services
Cloud and infrastructure services; Managed and professional services; Digital workplace and security
40

adesso

Best for: German-speaking public-sector, insurance and banking clients

adesso, based in Dortmund, describes itself as an IT service provider. It increased revenue organically by 14% to €1.47 billion in 2025, from €1.29 billion, and improved earnings before interest, taxes, depreciation and amortisation by 30%. The company confirmed these figures with its audited consolidated financial statements on 31 March 2026. adesso combines IT consulting, custom software, industry-specific solutions and operations services. It is the largest of the German IT services companies in this ranking after T-Systems.

Services

  • IT consulting
  • Custom software and systems integration
  • Industry solutions (insurance, banking, public sector)
  • Managed services
Revenue (2025)
€1.47bn (≈US$1.66bn)
Headquarters
Dortmund, Germany
Core services
IT consulting; Custom software and systems integration; Industry solutions (insurance, banking, public sector)
41

Persistent Systems

Best for: Software companies, banks and healthcare clients

Persistent Systems reported fiscal 2026 revenue of US$1,654.4 million, up 17.4% from US$1,409.1 million. In rupees revenue was INR 147,484.5 million, up 23.5%, and EBIT was INR 23,034.7 million, a 15.6% margin. Fourth-quarter revenue was US$436.0 million, up 3.2% from the previous quarter, and the company declared a full-year dividend of ₹40 per share. Profit before tax was INR 24,112.1 million, up from INR 18,223.1 million. With Coforge, it is one of the two fastest-growing mid-size Indian providers in this list.

Services

  • Software product engineering
  • Cloud and infrastructure services
  • Data and AI services
  • Enterprise IT services
Revenue (FY2026 (to 31 Mar 2026))
US$1,654.4m
Core services
Software product engineering; Cloud and infrastructure services; Data and AI services
42

Hexaware Technologies

Best for: Mid-market outsourcing with automation

Hexaware Technologies reported calendar 2025 revenue of US$1,537.4 million, 7.6% higher than in 2024. Fourth-quarter revenue was US$389 million, up 4.5% year on year, and EBITDA margin expanded by 65 basis points. The company reports on a calendar year, unlike most Indian providers, so its ranking figure covers a different period from those ending in March 2026. Hexaware sells application, cloud and infrastructure services together with business process work. It is ranked here between Persistent Systems and Nagarro.

Services

  • Application and cloud services
  • Infrastructure management
  • Business process services
  • Data and AI services
Revenue (2025)
US$1,537.4m
Core services
Application and cloud services; Infrastructure management; Business process services
43

Nagarro

Best for: Mid-size digital engineering programmes

Nagarro released audited 2025 statements on 29 April 2026 showing revenue of €999.3 million, up 2.8% from €972.0 million, and up 6.1% in constant currency. Gross profit grew 8.6% to €321 million and the adjusted EBITDA margin was 13.8%, within its forecast range. Its 2025 results included a one-time €12.4 million expense from new labour codes in India, where it employs a large part of its workforce. Nagarro focuses on digital product engineering and enterprise application services, with a smaller managed-services element. It ranks just above Endava on 2025 revenue converted to US dollars.

Services

  • Digital product engineering
  • Cloud and enterprise application services
  • Data and AI services
  • Managed services
Revenue (2025)
€999.3m (≈US$1.13bn)
Headquarters
Munich, Germany
Core services
Digital product engineering; Cloud and enterprise application services; Data and AI services
44

Endava

Best for: Payments, banking and insurance clients

Endava reported revenue of £772.3 million for the year to 30 June 2025, up 4.3% from £740.8 million. Its largest delivery location is Romania, with about 3,289 delivery employees at 30 June 2025. On 28 October 2026 the company said it would restate previously reported fiscal 2026 results after an audit-committee investigation into accounting treatment, with an expected revenue impact of roughly 2-4% of fiscal 2025 revenue. Because the fiscal 2026 figures were being restated, Endava is ranked on its fiscal 2025 accounts. Its shares trade on the New York Stock Exchange.

Services

  • Digital transformation consulting
  • Software engineering
  • Cloud and data services
  • Managed services
Revenue (FY2025 (to 30 Jun 2025))
£772.3m (≈US$1.02bn)
Headquarters
London, UK
Listed on
New York Stock Exchange
Core services
Digital transformation consulting; Software engineering; Cloud and data services
45

GFT Technologies

Best for: Banks and insurers modernising core systems

GFT Technologies, based in Stuttgart, reported 2025 revenue of €888 million, slightly above its forecast of €885 million, with adjusted EBIT of €67 million and an EBT margin of 5.2%. The company described the year as confirmation of its AI-centred five-year strategy in a difficult market. Revenue from insurance clients grew 15%, and revenue in Brazil grew 28%. GFT is ranked here just below Endava on converted 2025 revenue, the two being separated by about US$15 million.

Services

  • Core banking modernisation
  • Cloud engineering
  • Data and AI services
  • Insurance IT services
Revenue (2025)
€888m (≈US$1.00bn)
Headquarters
Stuttgart, Germany
Core services
Core banking modernisation; Cloud engineering; Data and AI services
46

Zensar Technologies

Best for: Mid-size clients in hi-tech, manufacturing and financial services

Zensar Technologies, part of the RPG group and headquartered in Pune, reported fiscal 2026 revenue of US$643.7 million, up 3.1% in reported currency and 1.7% in constant currency. In rupee terms revenue grew 7.7%. Fourth-quarter revenue was US$158.4 million. The company describes its services as experience, engineering and engagement solutions and says it has more than 10,500 employees in over 30 locations. Zensar is among the smaller Indian providers in this ranking.

Services

  • Experience and digital services
  • Engineering and application services
  • Cloud and infrastructure services
  • Engagement and support services
Revenue (FY2026 (to 31 Mar 2026))
US$643.7m
Employees
10,500+
Headquarters
Pune, India
Core services
Experience and digital services; Engineering and application services; Cloud and infrastructure services
47

Sify Technologies

Best for: Indian enterprises needing data-centre and network services

Sify Technologies reported fiscal 2026 revenue of ₹44,877 million, up from ₹39,886 million; its Form 20-F gives a convenience translation of US$474 million. Cost of sales was 59.81% of revenue, down from 62.47%. Unlike most firms in this list, Sify operates its own data centres, and its filing lists the power demands of those facilities among its specific risks. That makes it one of the few infrastructure-heavy providers here, closer to Rackspace than to consulting-led firms. It files with the SEC as a foreign private issuer and has operations in Chennai, Mumbai, Kolkata and other Indian cities.

Services

  • Data-centre colocation services
  • Network services
  • Cloud and managed services
  • Digital and security services
Revenue (FY2026 (to 31 Mar 2026))
₹44,877m (≈US$515m)
Core services
Data-centre colocation services; Network services; Cloud and managed services
48

Grid Dynamics

Best for: Retailers and technology companies

Grid Dynamics, headquartered in San Ramon, California, reported 2025 revenue of US$411.8 million, up from US$350.6 million in 2024. Retail is its leadership vertical, serving major retailers and brands, while technology, media and telecoms, finance, and healthcare and pharma (US$10.2 million in 2025) make up most of the rest. It is one of the smaller US-listed firms in the ranking and is included because it publishes audited revenue and sells consulting and integration services as well as engineering capacity.

Services

  • Digital commerce engineering
  • Cloud and platform engineering
  • Data and AI services
  • Consulting
Revenue (2025)
US$411.8m
Headquarters
San Ramon, California, US
Listed on
Nasdaq
Core services
Digital commerce engineering; Cloud and platform engineering; Data and AI services
49

The Hackett Group

Best for: Back-office transformation and Oracle/SAP implementations

The Hackett Group, headquartered in Miami, Florida, reported 2025 total revenue of US$305.6 million, down from US$313.9 million. Its Global Strategy & Business Transformation group generated US$169.6 million, Oracle Solutions US$72.7 million and SAP Solutions US$63.4 million. At 26 December 2025 it had 1,503 associates, excluding subcontractors, 81% of whom were billable. Its largest client accounted for 6% of revenue in 2025 and its top ten for 24%. Hackett is the smallest revenue-ranked company here and illustrates the consulting and enterprise-application end of the IT services market.

Services

  • Strategy and business transformation consulting
  • Oracle implementation services
  • SAP implementation services
  • Benchmarking and Gen AI solution design
Revenue (2025 (to 26 Dec 2025))
US$305.6m
Employees
1,503 associates (26 Dec 2025)
Headquarters
Miami, Florida, US
Listed on
Nasdaq
Core services
Strategy and business transformation consulting; Oracle implementation services; SAP implementation services
50

Nomura Research Institute (NRI)

Best for: Japanese financial-services and industrial clients

Nomura Research Institute, headquartered in the Otemachi district of Tokyo and established in 1965, reported 16,894 group employees at 31 March 2026. Its corporate overview lists consolidated revenue for fiscal 2025 as "8,147 billion yen", a figure that appears to contain a unit error, so it was not used and NRI is placed after the revenue-ranked group by headcount, as the methodology requires. NRI's four business lines are consulting, financial IT solutions, industrial IT solutions and IT platform services.

Services

  • Consulting
  • Financial IT solutions
  • Industrial IT solutions
  • IT platform services
Employees
16,894 group (31 Mar 2026)
Headquarters
Tokyo, Japan
Core services
Consulting; Financial IT solutions; Industrial IT solutions

Full ranking table

RankCompanyHQ countryRevenue (ranking basis, US$ equivalent)Fiscal yearEmployees
1AccentureIrelandUS$74,183mFY2026 (to 31 Aug 2026)c. 814,000 (31 Aug 2026)
2NTT DATA GroupJapan¥5,004.6bn (US$33.46bn)FY2025 (to 31 Mar 2026)197,800 (31 Mar 2025)
3Tata Consultancy Services (TCS)India₹2,67,021 crore (US$30.64bn)FY2026 (to 31 Mar 2026)584,519 (31 Mar 2026)
4CapgeminiFrance€22,465m (US$25.40bn)2025423,400 (31 Dec 2025)
5FujitsuJapan¥3,502.9bn (group) (US$23.42bn)FY2025 (to 31 Mar 2026)Not verified
6CognizantUnited StatesUS$21,108m2025c. 351,600 (31 Dec 2025)
7IBM ConsultingUnited StatesUS$21,055m (segment)2025Not verified
8InfosysIndiaUS$20,158mFY2026 (to 31 Mar 2026)328,594 (31 Mar 2026)
9Hitachi (Digital Systems & Services)Japan¥2,940.1bn (segment) (US$19.66bn)FY2025 (to 31 Mar 2026)Not verified
10LeidosUnited StatesUS$17,174m2025 (to 2 Jan 2026)c. 47,000 (2 Jan 2026)
11KyndrylUnited StatesUS$15,092mFY2026 (to 31 Mar 2026)c. 72,000 (31 Mar 2026)
12HCLTechIndia₹1,30,144 crore (US$14.93bn)FY2026 (to 31 Mar 2026)Not verified
13DXC TechnologyUnited StatesUS$12,644mFY2026 (to 31 Mar 2026)c. 115,000
14CGICanadaC$16.57bn (US$11.86bn)FY2026 (to 30 Sep 2026)c. 94,000 (30 Sep 2026)
15Booz Allen HamiltonUnited StatesUS$11,217mFY2026 (to 31 Mar 2026)c. 31,500 (31 Mar 2026)
16WiproIndia₹926,240m (US$10.63bn)FY2026 (to 31 Mar 2026)over 240,000 employees and business partners
17CACI InternationalUnited StatesUS$9,568mFY2026 (to 30 Jun 2026)Not verified
18AtosFrance€8,001m (US$9.05bn)202563,193 (31 Dec 2025)
19SAIC (Science Applications International Corp.)United StatesUS$7,262mFY2026 (to 30 Jan 2026)c. 23,000
20Sopra SteriaFrance€5,648.0m (US$6.39bn)202551,275 (31 Dec 2025)
21Tech MahindraIndiaUS$6,385mFY2026 (to 31 Mar 2026)147,623 (31 Mar 2026)
22EPAM SystemsUnited StatesUS$5,457m2025c. 56,600 delivery personnel (31 Dec 2025)
23SCSKJapan¥780.3bn (US$5.22bn)FY2025 (to 31 Mar 2026)Not verified
24LTM (formerly LTIMindtree)India₹42,307.6 crore (US$4.85bn)FY2026 (to 31 Mar 2026)87,950 (31 Mar 2026)
25AmdocsUnited StatesUS$4,697mFY2026 (to 30 Sep 2026)Not verified
26T-Systems (Deutsche Telekom)Germany€4,103m (segment) (US$4.64bn)2025Not verified
27Samsung SDS (IT services)South Korea₩6.5435tn (IT service business) (US$4.60bn)2025Not verified
28Everforth (formerly ASGN)United StatesUS$3,980.4m2025Not verified
29Indra Group (Minsait)Spain€3,129m (division) (US$3.54bn)2025Not verified
30ReplyItaly€2,483.6m (US$2.81bn)2025Not verified
31Rackspace TechnologyUnited StatesUS$2,685.7m2025c. 5,000 Rackers
32Formula SystemsIsraelUS$2,627.1m2025Not verified
33GlobantLuxembourgUS$2,454.9m2025Not verified
34Chinasoft InternationalChinaRMB 17.03bn (US$2.37bn)202578,030
35Tieto (formerly Tietoevry)Finland€1,852.3m (US$2.09bn)2025Not verified
36UnisysUnited StatesUS$1,950.1m2025Not verified
37ICF InternationalUnited StatesUS$1,872.9m2025c. 8,400 (31 Dec 2025)
38CoforgeIndiaUS$1,870mFY2026 (to 31 Mar 2026)Not verified
39Insight Enterprises (services)United StatesUS$1,716.2m (services)2025Not verified
40adessoGermany€1.47bn (US$1.66bn)2025Not verified
41Persistent SystemsIndiaUS$1,654.4mFY2026 (to 31 Mar 2026)Not verified
42Hexaware TechnologiesIndiaUS$1,537.4m2025Not verified
43NagarroGermany€999.3m (US$1.13bn)2025Not verified
44EndavaUnited Kingdom£772.3m (US$1.02bn)FY2025 (to 30 Jun 2025)Not verified
45GFT TechnologiesGermany€888m (US$1.00bn)2025Not verified
46Zensar TechnologiesIndiaUS$643.7mFY2026 (to 31 Mar 2026)10,500+
47Sify TechnologiesIndia₹44,877m (US$515m)FY2026 (to 31 Mar 2026)Not verified
48Grid DynamicsUnited StatesUS$411.8m2025Not verified
49The Hackett GroupUnited StatesUS$305.6m2025 (to 26 Dec 2025)1,503 associates (26 Dec 2025)
50Nomura Research Institute (NRI)JapanNot ranked on revenue-16,894 group (31 Mar 2026)

By country

Countries are assigned by headquarters or domicile. Combined revenue uses each company's ranking figure in US dollars; Nomura Research Institute contributes no revenue because it is ranked by headcount.

CountryCompaniesCombined ranking revenue (US$ equivalent)Companies listed
United States17US$138.2bnCognizant, IBM Consulting, Leidos, Kyndryl, DXC Technology, Booz Allen Hamilton, CACI International, SAIC (Science Applications International Corp.), EPAM Systems, Amdocs, Everforth (formerly ASGN), Rackspace Technology, Unisys, ICF International, Insight Enterprises (services), Grid Dynamics, The Hackett Group
India11US$93.8bnTata Consultancy Services (TCS), Infosys, HCLTech, Wipro, Tech Mahindra, LTM (formerly LTIMindtree), Coforge, Persistent Systems, Hexaware Technologies, Zensar Technologies, Sify Technologies
Japan5US$81.8bnNTT DATA Group, Fujitsu, Hitachi (Digital Systems & Services), SCSK, Nomura Research Institute (NRI)
Ireland1US$74.2bnAccenture
France3US$40.8bnCapgemini, Atos, Sopra Steria
Canada1US$11.9bnCGI
Germany4US$8.4bnT-Systems (Deutsche Telekom), adesso, Nagarro, GFT Technologies
South Korea1US$4.6bnSamsung SDS (IT services)
Spain1US$3.5bnIndra Group (Minsait)
Italy1US$2.8bnReply
Israel1US$2.6bnFormula Systems
Luxembourg1US$2.5bnGlobant
China1US$2.4bnChinasoft International
Finland1US$2.1bnTieto (formerly Tietoevry)
United Kingdom1US$1.0bnEndava

Notable changes in 2026

  • Capgemini and WNS: the integration of WNS raised Capgemini's headcount by 82,300 in 2025, to 423,400.
  • SCSK delisted: after Sumitomo Corporation's tender offer and share consolidation, SCSK left the Tokyo Stock Exchange on 12 March 2026.
  • Tietoevry becomes Tieto: the company adopted the Tieto brand and completed the divestment of Tietoevry Tech Services on 2 September 2025.
  • ASGN becomes Everforth: announced in November 2025, the new parent brand unifies Apex Systems, Creative Circle, CyberCoders, ECS, GlideFast and TopBloc.
  • LTIMindtree renamed LTM: the Larsen & Toubro group company reported fiscal 2026 under its new name.
  • Endava restatement: on 28 October 2026 Endava said it would restate fiscal 2026 results following an audit-committee investigation.
  • Atos restructuring: Atos ended 2025 with 63,193 staff, 19.1% fewer than a year earlier.
  • Amdocs and AT&T: Amdocs announced an eight-year strategic agreement with AT&T alongside its fiscal 2026 results.

Alternatives by use case

The largest firms are not the only option. For infrastructure operations, Kyndryl, DXC Technology, Rackspace Technology and Sify Technologies are the most infrastructure-heavy companies in the list. For US federal agencies, Leidos, Booz Allen Hamilton, CACI, SAIC and ICF specialise in government work. For Japanese and Korean clients, NTT DATA, Fujitsu, Hitachi, SCSK, NRI and Samsung SDS dominate their home markets. For mid-sized engineering-led programmes, Coforge, Persistent Systems, Nagarro, Endava, GFT and Grid Dynamics are smaller and often more specialised. For telecom operators, Amdocs and Tech Mahindra have large telecom practices, and for enterprise application implementations The Hackett Group is a smaller specialist in Oracle and SAP.

Frequently asked questions

What is the largest IT services company in the world

Accenture is the largest by revenue, with US$74,183 million in fiscal 2026 to 31 August 2026 and about 814,000 people. NTT DATA Group is second with net sales of ¥5,004.6 billion in fiscal 2025, roughly US$33.5 billion at 2025 average exchange rates, followed by Tata Consultancy Services and Capgemini.

What is the difference between IT services and IT outsourcing

IT services is the whole market for consulting, systems integration and managed operation of technology. IT outsourcing is one contracting model within it, in which a client hands an ongoing function such as infrastructure or application support to a provider. A consulting project or a one-off cloud migration is an IT service but not outsourcing.

Why is IBM ranked as IBM Consulting and not IBM

IBM earns most of its revenue from software and infrastructure products. Only its Consulting segment, with 2025 revenue of US$21,055 million, is an IT services business, so only that segment is counted. IBM's former infrastructure services unit was spun off in 2021 and is ranked separately as Kyndryl.

Which country has the most large IT services companies

The United States has the most companies in this ranking, 17, including Cognizant, Leidos, Kyndryl, DXC and several federal contractors. India has 11, led by TCS, Infosys, HCLTech and Wipro. Japan has five, and Accenture, the largest company, is domiciled in Ireland.

Which IT services companies are growing fastest

Among the ranked companies, Coforge reported the fastest growth, 29.2% in US dollars for fiscal 2026. SCSK's sales rose from ¥596.1 billion to ¥780.3 billion. Persistent Systems grew 17.4%, adesso 14% and CACI 10.9%. Several of the largest firms, including TCS in constant currency and DXC, reported flat or lower revenue.

How were revenue figures in different currencies compared

Each company's revenue is shown in its reporting currency and converted to US dollars at the Federal Reserve's 2025 annual average exchange rates, for example €1 = US$1.1306 and US$1 = ₹87.1468. The same rates are applied to all fiscal years, so rankings reflect business size rather than the timing of currency movements.

Are Deloitte, PwC, EY and KPMG included

No. The Big Four professional services networks have large technology consulting practices, but they are partnerships that do not publish audited IT services revenue in filings comparable with those used here, so they could not be ranked under this list's rules.

See also

Should your company be on this list?

Submit your logo, description, image and link for review. Approved listings appear in the Featured section above.

Add your company

Is your company missing from a list?

Send your logo, description and link. Editors review every submission, and approved listings are clearly labelled.

Add your company