Company lists · Data verified August 2026

Top 25 Employee database software companies based in the United States

Name: Employee database software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 589 companies tracked

There are 589 employee database software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 59,146 professional contacts across them, including 23,892 with verified work emails and 23,327 with mobile numbers. New York is the largest hub.

This list covers employee database 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. Data current as of August 28, 2026.

589Companies

59,146Contacts tracked

23,892Verified emails

23,327Mobile numbers

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The 25 largest employee database software companies based in the United States

Ranked by team size

Top 25 of 589 employee database software companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Paychex	Rochester, NY	10001+	17,921	5,583
2	Paycom	Atlanta, GA	5,001-10,000	7,144	3,781
3	Paylocity	Philadelphia, PA	5,001-10,000	6,216	3,758
4	Strada	The Woodlands, TX	5,001-10,000	5,553	2,229
5	Paycor	Cincinnati, OH	1,001-5,000	2,664	1,481
6	Bamboohr	Draper, UT	1,001-5,000	1,828	1,148
7	Isolved	Schaumburg, IL	1,001-5,000	1,675	994
8	Neogov	El Segundo, CA	501-1,000	678	123
9	Coadvantage	San Diego, CA	201-500	602	282
10	Apdata DO Brasil	Orlando, FL	501-1,000	598	6
11	Electronic Commerce, Inc. Eci, INC	Elkhart, IN	201-500	583	1
12	Primepay	Bradenton, FL	501-1,000	494	160
13	Prismhr	Chandler, AZ	201-500	431	262
14	Proliant	Naperville, IL	201-500	317	235
15	Experian Employer Services	Costa Mesa, CA	501-1,000	298	201
16	Viventium	Brooklyn, NY	201-500	283	191
17	INOVA	Knoxville, TN	201-500	268	129
18	Trinet Zenefits	San Francisco, CA	501-1,000	257	42
19	HCM Unlocked	Miami, FL	201-500	204	117
20	APS Payroll	Shreveport, LA	201-500	192	126
21	Secova	Budd Lake, NJ	201-500	175	12
22	Automatic Data Processing	Durham, NC	10001+	174	66
23	Heartland Payroll	Brook Park, OH	1,001-5,000	160	46
24	EASE	San Francisco, CA	201-500	128	45
25	Epromis Solutions	TX	201-500	99	2

Showing 25 of 589 employee database software companies based in the United States

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Employee database software companies based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

New YorkLargest hub · 10 HQs

23,327Contacts with mobile numbers

38Emails re-verified in last 30 days

Companies by employee count

1-10

204

11-50

219

51-200

107

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Employee database software companies by metro

Metro	Companies
Employee database software companies in New York	10
Employee database software companies in San Francisco	9
Employee database software companies in Atlanta	9
Employee database software companies in Houston	8
Employee database software companies in Chicago	8
Employee database software companies in Birmingham	7
Employee database software companies in Tampa	6
Employee database software companies in Fresno	6

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “employee database software companies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 38 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many employee database software companies are there based in the United States?

There are 589 employee database software companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Paychex, headquartered in Rochester, tops this list with the largest team on record.

Which city has the most employee database software companies?

New York leads with 10 headquartered companies, followed by San Francisco (9) and Atlanta (9).

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 23,892 verified decision-maker contacts tracked across these 589 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.