Company lists · Data refreshed September 2026

Top 25 Candidate engagement platforms based in the United States

RevenueBase identified 1,057 candidate engagement platforms headquartered in the United States as of September 2026 and tracks 20,611 professional contacts across them, including 6,150 with verified work emails. San Francisco is the largest hub.

This list covers candidate engagement platforms 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 14, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
1,057Companies
20,611Contacts tracked
6,150Verified emails
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The 25 largest candidate engagement platforms based in the United States

Ranked by team size
Top 25 of 1,057 candidate engagement platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to candidate engagement platforms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 20261,001-5,0001,062 contacts →

Indirect evidence

“At Radancy, we’re delivering the future of hiring.”

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 2026501-1,000854 contacts →

Partial evidence

“Greenhouse is the all-together hiring platform, giving companies of all sizes everything they need to hire better.”

Source: RevenueBase Database · checked Sep 14, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 14, 2026n/a697 contacts →

Partial evidence

“Recruiter.com is an OnDemand recruiting platform providing flexible talent acquisition solutions that scale from startups to the Fortune 100.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026501-1,000606 contacts →

Indirect evidence

“SmartRecruiters was founded on the bold belief that great companies are built through great hiring.”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidenceLebanon, NH, United StatesHQ checked Sep 14, 2026501-1,000511 contacts →

Indirect evidence

“Appcast is the award-winning, global leader in programmatic job advertising technology.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceScottsdale, AZ, United StatesHQ checked Sep 14, 2026501-1,000501 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 14, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 2026501-1,000453 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 14, 2026
8Strong evidenceMenlo Park, CA, United StatesHQ checked Sep 14, 2026201-500422 contacts →

Strong evidence

“As the global leader in AI-powered recruitment marketing and candidate engagement, we are transforming talent attraction and recruitment media buying for the world’s largest and…”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026201-500387 contacts →

Partial evidence

“Sense is a leading Conversational AI recruiting platform helping organizations hire faster, smarter, and at scale-without losing the human touch.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceNorwood, NJ, United StatesHQ checked Sep 14, 2026201-500373 contacts →

Indirect evidence

“All-in-one Software for Recruitment & Headhunting/Executive Search Firms.”

Source: RevenueBase Database · checked Sep 14, 2026
11Partial evidenceRochester, NY, United StatesHQ checked Sep 14, 2026501-1,000359 contacts →

Partial evidence

“Augeo is a loyalty platform with agentic AI that reads every signal and acts in real time, before the moment passes.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidenceAmbler, PA, United StatesHQ checked Sep 14, 20261,001-5,000349 contacts →

Indirect evidence

“Phenom is a purpose-driven company that delivers AI-powered talent experiences to global enterprises.”

Source: RevenueBase Database · checked Sep 14, 2026
13Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-200340 contacts →

Partial evidence

“Gem is the AI-first recruiting platform built for better outcomes, not more tools.”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceSan Francisco, United StatesHQ checked Sep 14, 2026201-500320 contacts →

Indirect evidence

“Ashby helps scaling companies achieve their ambitious growth targets.”

Source: RevenueBase Database · checked Sep 14, 2026
15Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026n/a283 contacts →

Partial 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 14, 2026
16Indirect evidenceGrand Rapids, MI, United StatesHQ checked Sep 14, 2026201-500274 contacts →

Indirect evidence

“Imagine your company is an 8-person rowing team and every employee is a rower.”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 2026n/a182 contacts →

Partial evidence

“ChangeEngine is the AI-powered employee experience orchestration platform that redefines how People teams design, launch, and scale employee programs across the entire employee…”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceMountain View, CA, United StatesHQ checked Sep 14, 2026201-500178 contacts →

Indirect evidence

“hireEZ is an AI company transforming how businesses hire.”

Source: RevenueBase Database · checked Sep 14, 2026
19Partial evidenceDenver, CO, United StatesHQ checked Sep 14, 2026201-500177 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 14, 2026
20Partial evidenceChicago, IL, United StatesHQ checked Sep 14, 2026201-500168 contacts →

Partial 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 14, 2026
21Partial evidenceAustin, TX, United StatesHQ checked Sep 14, 202651-200139 contacts →

Partial evidence

“Loxo is an AI recruiting platform built for growing professional recruiting firms worldwide.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceScottsdale, AZ, United StatesHQ checked Sep 14, 202651-200136 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 14, 2026
23Indirect evidenceNew York, NY, United StatesHQ checked Sep 14, 202651-200135 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 14, 2026
24Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 14, 202651-200129 contacts →

Indirect evidence

“Harver is the industry-leading hiring solution helping organizations make better talent decisions, faster.”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 14, 202651-200129 contacts →

Indirect evidence

“Recruiterflow is an AI-native CRM with Enterprise-Grade Depth - built to run a serious search and recruiting business.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 1,057 candidate engagement platforms based in the United States

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Candidate engagement platforms based in the United States at a glance

As of Sep 14, 2026
29.8%Verified-email coverage
19.5Average contacts per company
1-10Median size (employees)
12.9%Largest-city concentration · San Francisco
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
533
11-50
389
51-200
93
201-500
25
501-1,000
9
1,001-5,000
6
10001+
1

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 1,057 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 candidate engagement platforms, 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 “candidate engagement platforms”. 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 candidate engagement platforms), 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 candidate engagement platforms, 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, 6,150 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 14, 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 candidate engagement platforms, 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 candidate engagement platforms are there based in the United States?

RevenueBase identified 1,057 candidate engagement platforms 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 candidate engagement platforms?

San Francisco leads with 136 headquartered companies, followed by New York (77) and Los Angeles (26).

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 6,150 verified decision-maker contacts tracked across these 1,057 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 14, 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.