Company lists · Data refreshed September 2026
Top 25 Applicant tracking system companies based in the United States
RevenueBase identified 783 applicant tracking system companies headquartered in the United States as of September 2026 and tracks 23,481 professional contacts across them, including 6,099 with verified work emails. San Francisco is the largest hub.
This list covers applicant tracking system 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 19, 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 applicant tracking system companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,744 contacts → | ||||
Indirect evidence “Job Seekers: Land interviews faster OptimHire’s Job Auto-Applier applies to relevant jobs for you-24/7, hands-free.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,669 contacts → | ||||
Indirect evidence “HiBob is on a mission to transform how organizations operate in the modern world of work with its HR platform,"Bob." Leading the way for the future workplace, Bob offers…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,535 contacts → | ||||
Indirect evidence “Pioneer of CRM technology for recruiting, Avature is a highly configurable enterprise SaaS platform for talent acquisition and talent management that drives innovation in the HCM…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,062 contacts → | ||||
Indirect evidence “At Radancy, we’re delivering the future of hiring.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 606 contacts → | ||||
Indirect evidence “SmartRecruiters was founded on the bold belief that great companies are built through great hiring.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 511 contacts → | ||||
Indirect evidence “Appcast is the award-winning, global leader in programmatic job advertising technology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 501 contacts → | ||||
Indirect evidence “We believe in a world where all the friction that gets in the way of hiring is replaced by conversations, freeing people up to spend time with people, not software.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 453 contacts → | ||||
Indirect evidence “We’re proud to say that TMP Worldwide is a future-focused company with an amazing track record of delivering for clients and a rich heritage of industry firsts.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 409 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 373 contacts → | ||||
Indirect evidence “All-in-one Software for Recruitment & Headhunting/Executive Search Firms.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 349 contacts → | ||||
Indirect evidence “Phenom is a purpose-driven company that delivers AI-powered talent experiences to global enterprises.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 340 contacts → | ||||
Indirect evidence “Gem is the AI-first recruiting platform built for better outcomes, not more tools.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 331 contacts → | ||||
Indirect 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 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 283 contacts → | ||||
Indirect evidence “Braintrust is revolutionizing hiring with Braintrust AIR, the world's first and only end-to-end AI recruiting platform.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 273 contacts → | ||||
Indirect evidence “At Leoforce, we believe hiring should be faster, smarter, and easier.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 200 contacts → | ||||
Indirect evidence “Backed by two decades of hands-on experience, our strong insight on enterprise ecosystem and its dynamics offer complete end-to-end solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 178 contacts → | ||||
Indirect evidence “hireEZ is an AI company transforming how businesses hire.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 177 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 139 contacts → | ||||
Indirect evidence “Loxo is an AI recruiting platform built for growing professional recruiting firms worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 136 contacts → | ||||
Indirect evidence “We believe the recruitment process can fundamentally impact both business success and a person’s life by connecting the right person with a job they love.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 135 contacts → | ||||
Strong 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 19, 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: applicant tracking system 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 applicant tracking system companies.
- Partial evidence
- Its own public description names part of applicant tracking system companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name applicant tracking system 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 783 applicant tracking system companies based in the United States
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Applicant tracking system companies based in the United States at a glance
As of Sep 19, 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 783 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 applicant tracking system 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 “applicant tracking system 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 applicant tracking system 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 applicant tracking system 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, 6,099 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 19, 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.
Applicant tracking system companies by metro
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 applicant tracking system 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 applicant tracking system companies are there based in the United States?
RevenueBase identified 783 applicant tracking system 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?
Optimhire, headquartered in San Francisco, tops this list with the largest team on record.
Which city has the most applicant tracking system companies?
San Francisco leads with 69 headquartered companies, followed by New York (50) and Austin (28).
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 6,099 verified decision-maker contacts tracked across these 783 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 19, 2026.
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Applicant tracking system companies by geography
- Applicant tracking system companies based in Bangalore, India
- Applicant tracking system companies based in Bengaluru, India
- Applicant tracking system companies based in Hyderabad, India
- Applicant tracking system companies based in Austin, United States
- Applicant tracking system companies based in New York, United States
- Applicant tracking system companies based in San Francisco, United States
- Applicant tracking system companies based in Australia
- Applicant tracking system companies based in Belgium
- Applicant tracking system companies based in Brazil
- Applicant tracking system companies based in Canada
- Applicant tracking system companies based in France
- Applicant tracking system companies based in Germany
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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