Best PEO Companies in 2026

ADP TotalSource is the professional employer organization of Automatic Data Processing (ADP), the payroll and human capital management company headquartered at One ADP Boulevard in Roseland, New Jersey. ADP's annual report describes TotalSource as "our full-service PEO that offers expert guidance, user-friendly technology, comprehensive employee benefits", operating under co-employment in which worksite employees are co-employed by the client and ADP. TotalSource serves more than 19,000 clients and more than 770,000 worksite employees in all 50 US states.

ADP reports TotalSource in its PEO Services segment, which produced revenue of US$7,128.1 million in the fiscal year ended 30 June 2026, up 7% from US$6,690.4 million; average worksite employees grew 2% over the year. ADP's total revenue was US$21,947.4 million. Because PEO revenue includes pass-through benefits and payroll costs, it is not comparable with the fees a client actually pays, which ADP does not publish. The scale of ADP's client base and its national coverage are its main advantages; the trade-offs common to large PEOs are quote-only pricing and less flexibility to keep an existing benefits broker or plans than smaller providers advertise.

Insperity is a Houston-based provider of HR outsourcing whose mission statement dates its work to 1986. Its February 2026 results release named Paul J. Sarvadi as chairman and chief executive. For 2025 the company reported revenue of US$6,812 million, up 4%, on an average of 310,089 paid worksite employees per month, up 1%. Rising benefits costs pushed the company to a net loss of US$7 million for the year and US$33 million in the fourth quarter, with full-year adjusted EBITDA of US$131 million.

Insperity's core service is a PEO for small and mid-sized businesses. The company has been investing in a strategic partnership with Workday: operating expenses included US$48 million related to that partnership in 2025, and the chief executive named the rollout of HRScale as a 2026 growth priority. Guidance for 2026 projected average paid worksite employees of 305,400 to 314,700, roughly flat. The 2025 loss reflects the risk PEOs carry when they sponsor health plans: when claims rise faster than pricing, margins fall, and clients may see larger renewals.

TriNet was founded in 1988 and issues its results from Dublin, California; it is led by president and chief executive Mike Simonds. The company describes itself as a provider of HR solutions for small and medium-sized businesses spanning benefits, payroll and payroll-tax administration, risk mitigation and compliance consulting, and a TriNet subsidiary is certified by the IRS as a Certified Professional Employer Organization.

TriNet reported total revenue of US$5,010 million for 2025, down 1% from US$5,053 million, with adjusted EBITDA of US$425 million (an 8.5% margin). Average worksite employees fell to 333,886 for the year, and the company reported about 323,000 at 31 December 2025. Guidance for 2026 projects revenue of US$4,750 million to US$4,900 million, a further decline. The fall in worksite employees means prospective clients should compare renewal history as well as first-year quotes, since PEO pricing responds to the health-claims experience of the pool.

Paychex, which maintains dual headquarters in Rochester, New York, and Cincinnati, Ohio, operates licensed PEO subsidiaries that its annual report describes as providing "a comprehensive HR outsourcing solution". Under PEO arrangements Paychex acts as co-employer and assumes certain workers' compensation and health-insurance risks, distinguishing the PEO from its administrative services organisation (ASO) offering, in which the client remains sole employer.

In the fiscal year ended 31 May 2026, Paychex's PEO and Insurance Solutions revenue was US$1,433.2 million, up 7%, out of total revenue of US$6,512.0 million, which rose 17% after the company completed its acquisition of Paycor HCM on 14 April 2025, funded with US$4.2 billion of bonds. Paychex reports about 2.6 million worksite employees across its HR outsourcing solutions, a figure that combines ASO and PEO clients and therefore does not measure the PEO alone. The ability to move between ASO and PEO models with the same vendor is the main practical advantage for growing companies; Paychex does not publish PEO fees.

VensureHR is a privately held PEO founded in 2004 and headquartered in Chandler, Arizona. The company states that it has benefited more than 526,000 worksite employees and has expanded rapidly over the past seven years "through strategic partnerships and acquisitions". Its chief executive, Alex Campos, was named Entrepreneur of the Year at the 2026 American Business Awards, according to the company.

Vensure's growth by acquisition has made it a consolidator in the PEO market. The 526,000 figure is cumulative ("benefited") rather than a point-in-time count of current worksite employees, so it is not directly comparable with the averages reported by listed PEOs. Clients considering Vensure should confirm which entity will be the co-employer, which benefits plans apply in their state, and whether the PEO entity holds IRS CPEO certification, since acquisitive groups may operate several licensed subsidiaries.

Engage PEO was founded in 2011 by its chief executive, Jay Starkman, and serves clients in all 50 US states. The company passed 100,000 worksite employees served in 2025, the same year it acquired the PEOs Axios HR and Aspen HR.

Engage stands out for its documented credentials: it is an IRS Certified Professional Employer Organization with a first effective date of 1 January 2017, has held continuous ESAC accreditation since 2012, has completed SOC 1 Type II and SOC 2 Type II examinations, and is a NAPEO member. CPEO certification was created by a 2014 law, and ESAC accreditation provides an independent check on a PEO's financial stability and compliance. Engage does not publish its fees.

Rippling PEO is the co-employment service of Rippling, the workforce-management software company. It provides payroll processing, benefits administration, workers' compensation, HR compliance support and access to PHR- and SHRM-certified HR experts, along with employment practices liability insurance (EPLI) coverage. Benefits include medical, dental, vision, 401(k), HSA, FSA and commuter plans with online enrolment. The licensed entity is Rippling PEO 1, Inc. (Florida licence GL250).

Rippling's main differentiator is that the PEO runs on the same HR information system used by its non-PEO customers. The company states that it is "the only provider to let you move off PEO without replacing your underlying system", so a business that outgrows co-employment can keep its HR, payroll and IT software. Rippling cites more than 650 app integrations. Its general pricing starts at US$8 per employee per month plus a monthly base fee, but PEO pricing is quoted separately and not published. The page does not list certifications or the states in which the PEO operates.

Deel offers a US PEO that acts as co-employer for US employees in all 50 states. Services include federal, state and local payroll and tax filings, HR support with a named HR business partner, employee handbook management, leave administration, EPLI coverage, compliance monitoring and 24/7 support by chat, email, phone and Slack. Benefits options include medical plans from Aetna and Kaiser Permanente, 401(k), dental, vision, life, HSA and FSA, and workers' compensation; clients may also keep their existing broker and plans.

Unusually for a PEO, Deel publishes a starting price of US$125 per employee per month, and it states there are no separate fees for platform, payroll or benefits administration access. For a limited period, qualifying two-year PEO order forms signed between 15 July and 31 December 2026 receive three months of complimentary platform fees. Deel's pairing of a US PEO with international employment in one system suits companies with distributed teams; the two-year commitment attached to the promotion and the absence of published certifications on the PEO page are points to verify.

G&A Partners grew out of a CPA practice that founder Antonio "Tony" Grijalva started in 1991; its HR business dates from a 1995 staffing acquisition, and the company was co-founded with John W. Allen. Headquartered on the Katy Freeway in Houston, Texas, G&A has grown from three staff to more than 700.

The PEO package covers HR management, payroll and payroll taxes, benefits procurement and administration, compliance guidance, risk management and safety, HR technology, recruiting, performance management and training. Each client receives a client success manager, an HR advisor and a payroll specialist, with benefits and safety specialists added by scope. G&A is one of the few PEOs to give a typical price range, US$65 to US$150 per employee per month for core HR functions, with employer-paid benefits usually a separate line and a one-time implementation fee possible; it claims its admin fee is 10–15% lower than some larger national PEOs. The company describes itself as an IRS-certified PEO and displays an ESAC bonded-accreditation badge.

CoAd is the brand formed when CoAdvantage, a PEO, and PrimePay, a payroll provider, were united; the company's site states that CoAd "launches, unites CoAdvantage and PrimePay to unbundle PEO services" and that PrimePay is now CoAd Pay. The company lists its address as 101 Riverfront Boulevard in Bradenton, Florida, and states that it supports more than 17,000 small businesses and processes more than US$15 billion of payroll annually.

The "unbundling" positioning means that small businesses can buy payroll, HR or benefits services separately rather than committing to full co-employment, and move to the PEO when it makes financial sense. This addresses a common objection to PEOs, that a small company must accept the whole bundle and the PEO's benefits plans. The site does not state worksite employee counts, ownership or certifications in text, so buyers should confirm CPEO and ESAC status directly.

PrestigePEO was founded in 1998 by Andrew "Andy" Lubash, who remains a partner and chief executive, and has its headquarters in Melville, New York, where it moved into a 10,000 sq ft facility in 2010. In 2021 the company partnered with private-equity firm TriSpan.

PrestigePEO was one of the first PEOs nationwide to receive IRS CPEO certification in 2017, and it achieved ESAC accreditation in 2019; the company says it is among only 1% of PEOs accredited by ESAC. Its retirement-benefits division runs a multiple-employer 401(k) plan with more than 10,000 participating employees. The company targets small and medium-sized businesses and does not publish client or worksite employee counts or prices. Its smaller size relative to national providers can mean more direct access to senior staff, but a smaller benefits pool than the largest PEOs.

Sequoia One is the PEO offering of Sequoia, which calls itself "The Total People Investment Company". Its PEO is aimed at venture-backed technology startups and promises support "from your seed round through global expansion". Services cover compensation and equity management, benefits, HR administration, payroll and taxes, compliance support, analytics, an employee mobile app and global employment support, with business-risk coverage including employer liability, workers' compensation and directors and officers insurance.

Sequoia One is accredited by ESAC, which provides a financial-assurance programme for clients. Named clients include Trustpilot, Quip, Simpplr, Typeface and Securly. Pricing is not published and is provided through an advisor consultation. The startup focus means benefits packages and equity-compensation tools are tailored to technology companies; firms in other sectors may find a generalist PEO a better fit.