Company lists · Data refreshed September 2026

Top 25 Employment tax services based in the United States

RevenueBase identified 1,063 company matches for employment tax services associated with the United States as of September 2026 and tracks 15,267 professional contacts across them, including 6,985 with verified work emails. New York is the largest hub.

This list covers company matches for employment tax services 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 19, 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 19, 2026 How this list was built
1,063Companies
15,267Contacts tracked
6,985Verified emails
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The 25 largest employment tax services based in the United States

Ranked by team size
Top 25 of 1,063 company matches for employment tax services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchSan Francisco, CA, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
2Exact matchBradenton, FL, United StatesHQ recorded Sep 19, 2026201-500586 contacts →

Exact match

“CoAdvantage is now CoAd.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchRichfield, OH, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
4Exact matchMonona, WI, United StatesHQ recorded Sep 19, 202651-200324 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchDallas, TX, United StatesHQ recorded Sep 19, 20265,001-10,000323 contacts →

Exact match

“Together Vistra + iiPay are building the world's most powerful payroll proposition.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchCosta Mesa, CA, United StatesHQ recorded Sep 19, 2026501-1,000291 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchRochester, NY, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
8Exact matchNashville, TN, United StatesHQ recorded Sep 19, 2026201-500271 contacts →

Exact match

“Inova Payroll is a leading employer services company, integrating payroll and human capital management (HCM) technology with personalized support and full-service HR outsourcing.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchFlorence, SC, United StatesHQ recorded Sep 19, 2026201-500214 contacts →

Exact match

“Synergi specializes in processing federal and state tax credits for employers across the United States and Puerto Rico.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchRichmond, VA, United StatesHQ recorded Sep 19, 202651-200197 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchShreveport, LA, United StatesHQ recorded Sep 19, 2026201-500189 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchRochester, NY, United StatesHQ recorded Sep 19, 20261,001-5,000159 contacts →

Exact match

“Ovation Payroll is now Heartland Payroll.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchJacksonville, FL, United StatesHQ recorded Sep 19, 2026201-500155 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchMansfield, MA, United StatesHQ recorded Sep 19, 2026201-500155 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchLittleton, CO, United StatesHQ recorded Sep 19, 202611-50149 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchPeachtree Corners, GA, United StatesHQ recorded Sep 19, 202651-200126 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 19, 202651-200125 contacts →

Exact match

“US payroll, EOR, Contractor Management and Global Bill Pay in one platform for a global workforce.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchBillings, MT, United StatesHQ recorded Sep 19, 2026201-500123 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchBennington, NE, United StatesHQ recorded Sep 19, 2026n/a108 contacts →

Exact match

“Paychex Agency Inc is a company based out of New York, United States.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchPeachtree Corners, GA, United StatesHQ recorded Sep 19, 2026201-500101 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Sep 19, 2026501-1,000101 contacts →

Exact match

“When families hire a nanny, senior caregiver, housekeeper, personal assistant or other household employee to work in or around their home, they have specific federal, state and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchMelville, NY, United StatesHQ recorded Sep 19, 202611-5089 contacts →

Exact match

“Payroll and HR”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchScottsdale, AZ, United StatesHQ recorded Sep 19, 202651-20087 contacts →

Exact match

“Symmetry is the leading payroll tax compliance infrastructure for payroll providers, HR tech platforms and large employers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchClifton Park, NY, United StatesHQ recorded Sep 19, 202651-20087 contacts →

Exact match

“GTM's success and client satisfaction are based on our industry-leading expertise and an extraordinary level of personal attention for each and every client.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchPalo Alto, CA, United StatesHQ recorded Sep 19, 202651-20084 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 1,063 employment tax services based in the United States

See the full list, filter by size, metro and specialty, and access 6,985 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Employment tax services based in the United States at a glance

As of Sep 19, 2026
45.8%Verified-email coverage
14.4Average contacts per company
1-10Median size (employees)
2.1%Largest-city concentration · New York
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
659
11-50
289
51-200
73
201-500
16
501-1,000
8
1,001-5,000
6
5,001-10,000
2
10001+
2

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 1,063 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 “employment tax services” 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 6,985 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 19, 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 “employment tax services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many employment tax services are there based in the United States?

RevenueBase identified 1,063 company matches for employment tax services 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?

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

Which city has the most employment tax services?

New York leads with 22 company records, followed by Houston (15) and Atlanta (11).

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 6,985 professional contacts with verified work emails tracked across these 1,063 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 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 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.