Company lists · Data refreshed September 2026
Top 25 Payroll services companies based in the United States
RevenueBase identified 1,175 payroll services companies headquartered in the United States as of September 2026 and tracks 125,040 professional contacts across them, including 44,546 with verified work emails. New York is the largest hub.
This list covers payroll services companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest payroll services companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 84,166 contacts → | ||||
Indirect evidence “Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 17,911 contacts → | ||||
Strong evidence “As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 4,056 contacts → | ||||
Indirect evidence “TriNet (NYSE: TNET) provides small and medium-size businesses (SMBs) with full-service HR solutions tailored by industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 3,543 contacts → | ||||
Indirect evidence “Gusto has been growing the small business economy for 15+ years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 586 contacts → | ||||
Indirect evidence “CoAdvantage is now CoAd.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 535 contacts → | ||||
Indirect evidence “We provide comprehensive HR solutions to companies of all sizes throughout the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 525 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 436 contacts → | ||||
Indirect evidence “PrismHR creates exceptional software and services, empowering human resource outsourcing service providers such as Professional Employer Organizations (PEOs) and HR outsourcers to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 383 contacts → | ||||
Strong evidence “FrankCrum offers outsourced HR, payroll and payroll administration, employee benefits and benefits administration, 401(k), workers compensation and HR Solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 324 contacts → | ||||
Indirect evidence “BASIC's integrated HR solutions come full-circle for employers nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 291 contacts → | ||||
Indirect evidence “Employers need a partner they can rely on to face today’s new challenges.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 276 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 271 contacts → | ||||
Strong evidence “Inova Payroll is a leading employer services company, integrating payroll and human capital management (HCM) technology with personalized support and full-service HR outsourcing.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 213 contacts → | ||||
Strong evidence “TEAM Risk Management Strategies is the nation’s leading provider of comprehensive, outsourced payroll and human resources services for fiduciaries and advisors whose clients have…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 197 contacts → | ||||
Strong evidence “Dominion Payroll is a leader in payroll and human resource solutions for clients nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 187 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 159 contacts → | ||||
Strong evidence “Ovation Payroll is now Heartland Payroll.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 155 contacts → | ||||
Strong evidence “ConnectPay empowers small businesses across America through hassle-free payroll processing.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 149 contacts → | ||||
Strong evidence “Payroll Vault has Re-Defined Payroll Payroll Vault is a nationally leading vendor that is re-defining the payroll industry with advanced cloud-based technologies, the highest…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 139 contacts → | ||||
Strong evidence “Adams Keegan is a leading national provider of cloud-based, integrated solutions for human resources information systems (HRIS), payroll, employee benefits, and benefits…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 135 contacts → | ||||
Indirect evidence “OPOC.us (One Point of Care™.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 126 contacts → | ||||
Strong evidence “At Corporate Payroll Services, we relieve you of the burden of processing payroll.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 124 contacts → | ||||
Strong evidence “Check is a payroll-as-a-service API that lets you embed payroll directly in your vertical SaaS, HR, or time-tracking platform.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 123 contacts → | ||||
Strong evidence “Avitus Group is a worldwide company that simplifies, strengthens and grows businesses by providing administrative support (Payroll, accounting, taxes, HR and much more.) When a…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 116 contacts → | ||||
Indirect evidence “UZIO | UZIO.ai Empowering People.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: payroll services companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names payroll services companies.
- Partial evidence
- Its own public description names part of payroll services companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name payroll services companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,175 payroll services companies based in the United States
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Payroll services companies based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 1,175 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among payroll services companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “payroll services companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names payroll services companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among payroll services companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 44,546 across the full list. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names payroll services companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many payroll services companies are there based in the United States?
RevenueBase identified 1,175 payroll services companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
ADP, headquartered in Roseland, tops this list with the largest team on record.
Which city has the most payroll services companies?
New York leads with 18 headquartered companies, followed by Houston (15) and Rochester (13).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 44,546 verified decision-maker contacts tracked across these 1,175 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.
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