Company lists · Data refreshed September 2026

Top 25 Peo service providers based in the United States

RevenueBase identified 1,054 company matches for peo service providers associated with the United States as of September 2026 and tracks 32,858 professional contacts across them, including 14,809 with verified work emails. New York is the largest hub.

This list covers company matches for peo service providers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
1,054Companies
32,858Contacts tracked
14,809Verified emails
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The 25 largest peo service providers based in the United States

Ranked by team size
Top 25 of 1,054 company matches for peo service providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDublin, CA, United StatesHQ recorded Sep 27, 20261,001-5,0004,056 contacts →

Exact match

“TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 20261,001-5,0003,543 contacts →

Exact match

“Gusto has been growing the small business economy for 15+ years.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchChandler, AZ, United StatesHQ recorded Sep 27, 20261,001-5,0002,437 contacts →

Exact match

“VensureHR is the direct employer services business unit of Vensure Employer Solutions, the largest privately held organization in the HR technology and services sector, delivering…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchVancouver, WA, United StatesHQ recorded Sep 27, 2026501-1,0001,591 contacts →

Exact match

“We started as a staffing company in 1972, and over the past 50 years, evolved into a Professional Employer Organization or PEO.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261,001-5,0001,554 contacts →

Exact match

“Justworks takes the busyness out of growing a business and alleviates the unknown.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Sep 27, 2026501-1,000840 contacts →

Exact match

“Managing HR, payroll, benefits, and compliance can stretch your team thin, and mistakes are costly.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchWest Palm Beach, FL, United StatesHQ recorded Sep 27, 2026501-1,000828 contacts →

Exact match

“Oasis, A Paychex Company, is a leading Professional Employer Organization (PEO).”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchBradenton, FL, United StatesHQ recorded Sep 27, 2026201-500586 contacts →

Exact match

“CoAdvantage is now CoAd.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchRichfield, OH, United StatesHQ recorded Sep 27, 2026501-1,000535 contacts →

Exact match

“We provide comprehensive HR solutions to companies of all sizes throughout the United States.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchWichita, KS, United StatesHQ recorded Sep 27, 2026501-1,000525 contacts →

Exact match

“In today's fast-paced business landscape, multi-unit companies demand more than just basic operations-they need expert guidance and cutting-edge technology to thrive.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchChandler, AZ, United StatesHQ recorded Sep 27, 2026201-500436 contacts →

Exact match

“PrismHR creates exceptional software and services, empowering human resource outsourcing service providers such as Professional Employer Organizations (PEOs) and HR outsourcers to…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchHonolulu, HI, United StatesHQ recorded Sep 27, 2026201-500421 contacts →

Exact match

“ProService Hawaii provides bundled HR solutions that make it easier for employers to succeed.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchClearwater, FL, United StatesHQ recorded Sep 27, 2026201-500383 contacts →

Exact match

“FrankCrum offers outsourced HR, payroll and payroll administration, employee benefits and benefits administration, 401(k), workers compensation and HR Solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchIselin, NJ, United StatesHQ recorded Sep 27, 2026201-500353 contacts →

Exact match

“ExtensisHR, one of the largest Professional Employer Organizations (PEOs) in the U.S, is looking for talented people to join our team!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchFort Lauderdale, FL, United StatesHQ recorded Sep 27, 2026501-1,000341 contacts →

Exact match

“Engage PEO delivers comprehensive HR solutions to small and medium-sized businesses, sharpening their competitive advantage.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchNorman, OK, United StatesHQ recorded Sep 27, 2026201-500341 contacts →

Exact match

“Most founders don't start a business because they love navigating HR compliance, filing payroll taxes, or negotiating healthcare premiums.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchMonona, WI, United StatesHQ recorded Sep 27, 202651-200324 contacts →

Exact match

“BASIC's integrated HR solutions come full-circle for employers nationwide.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Sep 27, 202651-200283 contacts →

Exact match

“At Employer Flexible, we’re a Professional Employer Organization (PEO) that helps businesses simplify HR, payroll, benefits, risk management, and compliance, so you can focus on…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchThe Woodlands, TX, United StatesHQ recorded Sep 27, 202651-200279 contacts →

Exact match

“Outsourcing HR through a PEO is a strong option for growing businesses.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchRochester, NY, United StatesHQ recorded Sep 27, 2026201-500276 contacts →

Exact match

“From start-up to scale-up, SurePayroll online payroll, tax management, HR and benefits solutions give small business and household employers the freedom to succeed.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchMelville, NY, United StatesHQ recorded Sep 27, 2026201-500264 contacts →

Exact match

“PrestigePEO empowers small and mid-sized businesses (SMBs) to simplify HR by offering end-to-end support for employee benefits management, payroll administration, workers’…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchMiami, FL, United StatesHQ recorded Sep 27, 2026501-1,000245 contacts →

Exact match

“STAFFVIRTUAL is an American business process outsourcing (BPO) company with offices in the Philippines specializing in customer support, back office, and IT outsourcing.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchTroy, MI, United StatesHQ recorded Sep 27, 202651-200187 contacts →

Exact match

“Trion Solutions is one of the nation’s largest Professional Employer Organizations (PEOs), relieving the stress and burden of managing payroll and other HR functions so clients…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchLehi, UT, United StatesHQ recorded Sep 27, 202651-200185 contacts →

Exact match

“Nexeo is a dynamic full-service human resources firm that provides employers with comprehensive recruiting and staffing, payroll and benefits solutions, and consulting and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchPensacola, FL, United StatesHQ recorded Sep 27, 202651-200169 contacts →

Exact match

“In business for over 50 years, Landrum HR Solutions is a leading HR service provider with a vision of “making the business of people easier.” We help organizations navigate…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 1,054 peo service providers based in the United States

See the full list, filter by size, metro and specialty, and access 14,809 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Peo service providers based in the United States at a glance

As of Sep 27, 2026
45.1%Verified-email coverage
31.2Average contacts per company
11-50Median size (employees)
2.3%Largest-city concentration · New York
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
486
11-50
342
51-200
114
201-500
37
501-1,000
28
1,001-5,000
26
5,001-10,000
11
10001+
10

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,054 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “peo service providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 14,809 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “peo service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many peo service providers are there based in the United States?

RevenueBase identified 1,054 company matches for peo service providers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Trinet tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most peo service providers?

New York leads with 24 company records, followed by Houston (22) and Tampa (22).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 14,809 professional contacts with verified work emails tracked across these 1,054 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.