Company lists · Data refreshed September 2026
Top 25 Ats software companies based in the United States
RevenueBase identified 375 ats software companies headquartered in the United States as of September 2026 and tracks 11,570 professional contacts across them, including 4,075 with verified work emails. San Francisco is the largest hub.
This list covers ats 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 27, 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 ats software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,062 contacts → | ||||
Indirect evidence “At Radancy, we’re delivering the future of hiring.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 854 contacts → | ||||
Indirect evidence “Greenhouse is the all-together hiring platform, giving companies of all sizes everything they need to hire better.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 606 contacts → | ||||
Indirect evidence “SmartRecruiters was founded on the bold belief that great companies are built through great hiring.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 511 contacts → | ||||
Indirect evidence “Appcast is the award-winning, global leader in programmatic job advertising technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 409 contacts → | ||||
Partial evidence “Employ is the only company that gives you three market-leading ATS solutions, because you deserve the right solution, not just our only solution.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 380 contacts → | ||||
Indirect evidence “JobTarget recruitment solutions help leading Fortune companies, recruitment advertising agencies and small businesses improve the process of finding and hiring the best candidates.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 373 contacts → | ||||
Partial evidence “All-in-one Software for Recruitment & Headhunting/Executive Search Firms.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 340 contacts → | ||||
Indirect evidence “Gem is the AI-first recruiting platform built for better outcomes, not more tools.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 331 contacts → | ||||
Partial evidence “One of three market-leading ATS solutions by Employ, Jobvite is a comprehensive, configurable talent acquisition suite that streamlines complex processes to put the focus back on…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 178 contacts → | ||||
Indirect evidence “hireEZ is an AI company transforming how businesses hire.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 177 contacts → | ||||
Partial evidence “One of three market-leading ATS solutions by Employ, Lever is a scalable, flexible applicant tracking system combined with interactive candidate relationship management tools that…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 168 contacts → | ||||
Indirect evidence “Hireology is the only hiring platform purpose-built for the unique needs of decentralized industries like healthcare, hospitality, and retail automotive.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 135 contacts → | ||||
Indirect evidence “JobDiva is the global leader in Talent Acquisition, Talent Management and Applicant Tracking technology, delivered as an AI-powered SaaS solution to the staffing and recruiting…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 129 contacts → | ||||
Indirect evidence “Harver is the industry-leading hiring solution helping organizations make better talent decisions, faster.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 118 contacts → | ||||
Strong evidence “For decades, enterprise hiring ran on the ATS, with an accumulation of software built around it to patch every gap.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 110 contacts → | ||||
Indirect evidence “Oorwin AI is an intelligent recruitment platform designed to transform how businesses hire, manage, and collaborate on talent.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 98 contacts → | ||||
Indirect evidence “HireBeat is a candidate sourcing and applicant tracking system that gets out of your way to make recruiting incredibly fast.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 94 contacts → | ||||
Partial evidence “Enterprise Software for Staffing and Recruiting Firms built on Salesforce Spearheading recruitment technology since 2008, TargetRecruit provides a powerful applicant tracking…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 88 contacts → | ||||
Indirect evidence “Nexxt is a leading HR technology company for reaching candidates at scale.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 85 contacts → | ||||
Indirect evidence “Dover is on a mission to help every company build an amazing team.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 76 contacts → | ||||
Partial evidence “One of three market-leading ATS solutions by Employ, JazzHR is a simple, easy-to-use applicant tracking system, a one-stop-shop for everything hiring, so you can focus on what…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 75 contacts → | ||||
Strong evidence “We are Tracker, the industry-leading provider of people-centric recruitment software We offer a sophisticated ATS & CRM in one platform.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 73 contacts → | ||||
Indirect evidence “Spark Hire is an applicant tracking system built for organizations with 50 to 500 employees where hiring has to work reliably, not just occasionally.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 71 contacts → | ||||
Indirect evidence “Replace email and spreadsheets with a beautiful, easy to use, web based applicant tracking system You'll quickly fall in love with the simplicity and efficiency of managing your…” Source: RevenueBase Database · checked Sep 27, 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: ats 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 ats software companies.
- Partial evidence
- Its own public description names part of ats software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name ats 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 375 ats software companies based in the United States
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Ats software companies based in the United States at a glance
As of Sep 27, 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 375 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 ats 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 “ats 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 ats 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 ats 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, 4,075 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 27, 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.
Ats software companies by metro
- Ats software companies in San Francisco31
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 ats 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 ats software companies are there based in the United States?
RevenueBase identified 375 ats 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?
Radancy, headquartered in New York, tops this list with the largest team on record.
Which city has the most ats software companies?
San Francisco leads with 31 headquartered companies, followed by New York (23) and Austin (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 4,075 verified decision-maker contacts tracked across these 375 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 27, 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.