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Company lists · Data refreshed September 2026

Top 25 Payroll processing software companies based in the United States

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 698 companies tracked

RevenueBase identified 698 payroll processing software companies headquartered in the United States as of September 2026 and tracks 107,961 professional contacts across them, including 40,442 with verified work emails and 29,681 with mobile numbers. New York is the largest hub.

This list covers payroll processing software 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
698Companies
107,961Contacts tracked
40,442Verified emails
29,681Mobile numbers
Unlock all 698 companies Free signup · no credit card · 500 free credits

The 25 largest payroll processing software companies based in the United States

Ranked by team size
Top 25 of 698 payroll processing software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names payroll processing software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
ADPIndirect evidence
Roseland, NJ, United StatesHQ checked Sep 5, 202610001+84,166

“Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.”

Source: company website · checked Sep 5, 2026
2
PaycomStrong evidence
Oklahoma City, OK, United StatesHQ checked Sep 5, 20265,001-10,0007,002

“Paycom (NYSE:PAYC) automates the entire employee life cycle in a truly single HR and payroll software.”

Source: company website · checked Sep 5, 2026
3
PaylocityStrong evidence
Schaumburg, IL, United StatesHQ checked Sep 5, 20265,001-10,0006,153

“Paylocity (NASDAQ: PCTY) is an award-winning provider of cloud-based HR, payroll and spend management software solutions.”

Source: company website · checked Sep 5, 2026
4
Accountantsworld By IrisStrong evidence
Hauppauge, NY, United StatesHQ checked Sep 5, 2026n/a655

“Since AccountantsWorld By IRIS is a leader in providing HR and payroll software for accountants and CPA firms.”

Source: company website · checked Sep 5, 2026
5
PrimepayIndirect evidence
Bradenton, FL, United StatesHQ checked Sep 5, 2026501-1,000491

“PrimePay is now CoAd.”

Source: company website · checked Sep 5, 2026
6
PrismhrPartial evidence
Chandler, AZ, United StatesHQ checked Sep 5, 2026201-500436

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

Source: company website · checked Sep 5, 2026
7
NetchexPartial evidence
Covington, LA, United StatesHQ checked Sep 5, 2026201-500376

“HR and payroll shouldn't slow you down.”

Source: company website · checked Sep 5, 2026
8
Experian Employer ServicesIndirect evidence
Costa Mesa, CA, United StatesHQ checked Sep 5, 2026501-1,000291

“Employers need a partner they can rely on to face today’s new challenges.”

Source: company website · checked Sep 5, 2026
9
ViventiumPartial evidence
Berkeley Heights, NJ, United StatesHQ checked Sep 5, 2026201-500285

“Viventium provides a SaaS-based payroll and HR solution that is focused on the post-acute care industry, paying over health services employees and supporting clients in all 50…”

Source: company website · checked Sep 5, 2026
10
SurepayrollPartial evidence
Rochester, NY, United StatesHQ checked Sep 5, 2026201-500276

“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: company website · checked Sep 5, 2026
11
WorkstreamPartial evidence
San Francisco, CA, United StatesHQ checked Sep 5, 2026201-500251

“Workstream is the modern all-in-one HR and payroll solution built specifically for restaurants, and trusted by locations.”

Source: company website · checked Sep 5, 2026
12
Dominion PayrollPartial evidence
Richmond, VA, United StatesHQ checked Sep 5, 202651-200197

“Dominion Payroll is a leader in payroll and human resource solutions for clients nationwide.”

Source: company website · checked Sep 5, 2026
13
APS PayrollPartial evidence
Shreveport, LA, United StatesHQ checked Sep 5, 2026201-500189

“At APS, our mission is simple: to make payroll and HR easier.”

Source: company website · checked Sep 5, 2026
14
Heartland PayrollPartial evidence
Rochester, NY, United StatesHQ checked Sep 5, 20261,001-5,000159

“Ovation Payroll is now Heartland Payroll.”

Source: company website · checked Sep 5, 2026
15
Greenshades SoftwareIndirect evidence
Jacksonville, FL, United StatesHQ checked Sep 5, 2026201-500155

“Greenshades delivers purpose-built workforce management solutions for organizations where workforce complexity is the norm, not the exception.”

Source: company website · checked Sep 5, 2026
16
Connectpay Payroll ServicesStrong evidence
Mansfield, MA, United StatesHQ checked Sep 5, 2026201-500155

“ConnectPay empowers small businesses across America through hassle-free payroll processing.”

Source: company website · checked Sep 5, 2026
17
Payroll VaultPartial evidence
Littleton, CO, United StatesHQ checked Sep 5, 202611-50149

“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: company website · checked Sep 5, 2026
18
Corporate Payroll ServicesStrong evidence
Peachtree Corners, GA, United StatesHQ checked Sep 5, 202651-200126

“At Corporate Payroll Services, we relieve you of the burden of processing payroll.”

Source: company website · checked Sep 5, 2026
19
CHECKPartial evidence
New York, CA, United StatesHQ checked Sep 5, 202651-200124

“Check is a payroll-as-a-service API that lets you embed payroll directly in your vertical SaaS, HR, or time-tracking platform.”

Source: company website · checked Sep 5, 2026
20
Uzio Technology INCIndirect evidence
Great Falls, VA, United StatesHQ checked Sep 5, 202651-200116

“UZIO | UZIO.ai Empowering People.”

Source: company website · checked Sep 5, 2026
21
PayentryPartial evidence
Peachtree Corners, GA, United StatesHQ checked Sep 5, 2026201-500101

“Complete Payroll, HR Services, Insurance Services, Retirement Plan Services and Workforce Management Solutions.”

Source: company website · checked Sep 5, 2026
22
Zuma Payroll And HRPartial evidence
Melville, NY, United StatesHQ checked Sep 5, 202611-5089

“Payroll and HR”

Source: company website · checked Sep 5, 2026
23
HourlyPartial evidence
Palo Alto, CA, United StatesHQ checked Sep 5, 202651-20084

“Everything you need to pay your people, your payroll taxes and your workers' comp insurance made easy as pie.”

Source: company website · checked Sep 5, 2026
24
ExecupayPartial evidence
San Antonio, TX, United StatesHQ checked Sep 5, 202651-20080

“For over 40 years, Execupay has been a leading provider of payroll and HR Solutions for both small and medium sized businesses covering payroll, time and labor management, talent…”

Source: company website · checked Sep 5, 2026
25
PaydayIndirect evidence
Virginia Beach, VA, United StatesHQ checked Sep 5, 202651-20080

“Back in the early 2010s, Dave Fried and Danny Kline struck up a partnership.”

Source: company website · checked Sep 5, 2026

Showing 25 of 698 payroll processing software companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 40,442 reachable decision-makers.

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Payroll processing software companies based in the United States at a glance

As of Sep 5, 2026
11-50Median size (employees)
New YorkLargest hub · 12 HQs
29,681Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
343
11-50
261
51-200
60
201-500
13
501-1,000
7
1,001-5,000
6
5,001-10,000
3
10001+
2

Verified emails by last verification

0–30
36,999
31–60
2,773
61–90
58
90–180
81
180+
531

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 processing software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 processing software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among payroll processing software 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 an evidence 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, 40,442 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 5, 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

How many payroll processing software companies are there based in the United States?

RevenueBase identified 698 payroll processing software 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 processing software companies?

New York leads with 12 headquartered companies, followed by San Francisco (11) and Atlanta (10).

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 40,442 verified decision-maker contacts tracked across these 698 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 698 payroll processing software companies based in the United States. Start with a free account, no credit card.

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Related lists

Browse: Companies home · All United States lists · All Payroll processing software companies lists · New lists

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.

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