Company lists · Data refreshed September 2026

Top 25 Payroll software companies based in the United States

RevenueBase identified 500 payroll software companies headquartered in the United States as of September 2026 and tracks 7,226 professional contacts across them, including 2,722 with verified work emails and 2,980 with mobile numbers. San Francisco is the largest hub.

This list covers payroll 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
500Companies
7,226Contacts tracked
2,722Verified emails
2,980Mobile numbers
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The 25 largest payroll software companies based in the United States

Ranked by team size
Top 25 of 500 payroll 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 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
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
2
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
3
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
4
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
5
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
6
Media Services PayrollStrong evidence
Los Angeles, CA, United StatesHQ checked Sep 5, 2026201-500218

“Media Services is an entertainment payroll, production accounting and software enterprise with over 45 years’ experience in the United States and abroad.”

Source: company website · checked Sep 5, 2026
7
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
8
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
9Mansfield, 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
10
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
11Peachtree 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
12
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
13
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
14
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
15
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
16
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
17
Business Software, INCIndirect evidence
Peachtree Corners, GA, United StatesHQ checked Sep 5, 202651-20077

“BSI is a leading provider of U.S.”

Source: company website · checked Sep 5, 2026
18
EmcentrixStrong evidence
Westlake Village, CA, United StatesHQ checked Sep 5, 202651-20077

“EmCentrix is a HR technology / payroll integration developer founded in Nevada in 2001 with the goal of creating great software that helps make the lives of HR & payroll…”

Source: company website · checked Sep 5, 2026
19
CheckwritersPartial evidence
Northampton, MA, United StatesHQ checked Sep 5, 202651-20073

“Checkwriters is a payroll and HR services company focused on optimizing every step of the customer experience.”

Source: company website · checked Sep 5, 2026
20
SALSAStrong evidence
San Francisco, CA, United StatesHQ checked Sep 5, 202611-5073

“Salsa is the go-to embedded payroll provider for leading software platforms.”

Source: company website · checked Sep 5, 2026
21
Complete PayrollPartial evidence
Perry, NY, United StatesHQ checked Sep 5, 202651-20059

“Few people get excited about payroll processing.”

Source: company website · checked Sep 5, 2026
22
CTR Payroll & HRIndirect evidence
Warrendale, PA, United StatesHQ checked Sep 5, 202651-20057

“Fortune 500 Quality with a “Local” Touch With over 50 years of experience in the industry we know a “thing or two” about quality and customer service.”

Source: company website · checked Sep 5, 2026
23
Mpay LLCPartial evidence
Cornelius, NC, United StatesHQ checked Sep 5, 202651-20055

“MPAY is a leading provider of payroll and human capital management solutions committed to delivering innovative technology and support to the Millennium licensees and their…”

Source: company website · checked Sep 5, 2026
24Mansfield, MA, United StatesHQ checked Sep 5, 202651-20054

“The Hilb Difference.”

Source: company website · checked Sep 5, 2026
25
Primepoint HR & PayrollPartial evidence
Westampton, NJ, United StatesHQ checked Sep 5, 202651-20051

“At Primepoint, we like to think we are more than just an HR & payroll solutions provider.”

Source: company website · checked Sep 5, 2026

Showing 25 of 500 payroll software companies based in the United States

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Payroll software companies based in the United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
San FranciscoLargest hub · 10 HQs
2,980Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
269
11-50
172
51-200
38
201-500
7
501-1,000
6
1,001-5,000
4
5,001-10,000
1

Verified emails by last verification

0–30
2,539
31–60
165
61–90
2
90–180
1
180+
15

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 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 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 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, 2,722 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 software companies are there based in the United States?

RevenueBase identified 500 payroll 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?

Accountantsworld By Iris, headquartered in Hauppauge, tops this list with the largest team on record.

Which city has the most payroll software companies?

San Francisco leads with 10 headquartered companies, followed by New York (8) and Houston (6).

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 2,722 verified decision-maker contacts tracked across these 500 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.

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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.