Company lists · Data refreshed September 2026
Top 25 Staff management software companies based in the United States
RevenueBase identified 305 staff management software companies headquartered in the United States as of September 2026 and tracks 95,346 professional contacts across them, including 32,630 with verified work emails. New York is the largest hub.
This list covers staff management 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 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 staff management software 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 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,376 contacts → | ||||
Partial evidence “Employee Based Systems (EBS) is a innovative HRMS software development, implementation training, support, and services company specializing in helping companies improve…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,196 contacts → | ||||
Indirect evidence “At Shiftsmart, we're not just shaping the future of labor; we're revolutionizing it.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 991 contacts → | ||||
Strong evidence “For 35 years, TCP Software has helped organizations engage their people by providing flexible workforce management solutions and mobile timekeeping.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 915 contacts → | ||||
Indirect evidence “The everything app for hourly teams with scheduling, time clocks, payroll, messaging, and HR-built for small businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 524 contacts → | ||||
Strong evidence “In October 2024, WorkForce Software was acquired by ADP, a global leader in human capital management, to enhance their global workforce solutions and lead the market in future…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 454 contacts → | ||||
Indirect evidence “Masis Staffing Solutions ensures peak service to its clients through our culture, experience and ethics.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 393 contacts → | ||||
Indirect evidence “Workable is an all-in-one HR platform that helps businesses find great candidates, hire faster, and manage their teams more effectively.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 376 contacts → | ||||
Indirect evidence “HR and payroll shouldn't slow you down.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 262 contacts → | ||||
Partial evidence “Hubstaff is a time tracking software platform that includes built-in productivity monitoring, automated payments, and workforce analytics.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 223 contacts → | ||||
Partial evidence “Legion Technologies delivers the industry’s most innovative workforce management platform.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 209 contacts → | ||||
Partial evidence “As a seamless staffing software provider, TempWorks develops customized solutions from the ground up to address your staffing needs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 181 contacts → | ||||
Strong evidence “When I Work is the market leader in shift-based workforce management software and delivers a powerful, employee-first experience.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 159 contacts → | ||||
Indirect evidence “Ovation Payroll is now Heartland Payroll.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 152 contacts → | ||||
Partial evidence “Harvest is an industry-leading software company building tools that help businesses thrive.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 150 contacts → | ||||
Partial evidence “Alliance Human Capital Management (HCM) is heavily invested in providing the latest technology backed by the most personalized customer service in the industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 131 contacts → | ||||
Indirect evidence “Fingercheck connects time tracking, scheduling, and payroll in one platform for businesses where work happens in the field.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 99 contacts → | ||||
Indirect evidence “Workwell Technologies specializes in streamlining time and attendance processes for small and mid-sized businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 98 contacts → | ||||
Indirect evidence “HotSchedules, Now Powered by Fourth is the power behind the world’s hospitality industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 90 contacts → | ||||
Partial evidence “Swipeclock is an IRIS Software Group company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 85 contacts → | ||||
Strong evidence “EPAY Systems, a Vensure Employer Solutions company, is a fast-growing human capital management and workforce management software provider.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 81 contacts → | ||||
Strong evidence “Workforce.com is a workforce management software technology company that helps improve time & labor for shift and hourly workforces.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 79 contacts → | ||||
Strong evidence “ATS is the leading provider of biometric and non-biometric workforce management tools and integration software, offering state-of-the-art solutions such as the PeoplePoint…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 77 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 75 contacts → | ||||
Indirect evidence “Würk exists to help compliance-centric businesses fortify, comply, and thrive in the face of uncertain highly regulated environments.” Source: RevenueBase Database · checked Sep 29, 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: staff management software 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 staff management software companies.
- Partial evidence
- Its own public description names part of staff management software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name staff management software 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 305 staff management software companies based in the United States
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Staff management software companies based in the United States at a glance
As of Sep 29, 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 305 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 staff management software 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 “staff management software 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 staff management software 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 staff management 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 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, 32,630 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 29, 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 staff management software 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 staff management software companies are there based in the United States?
RevenueBase identified 305 staff management 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 staff management software companies?
New York leads with 10 headquartered companies, followed by San Francisco (10) and Austin (8).
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 32,630 verified decision-maker contacts tracked across these 305 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 29, 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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