Company lists · Data refreshed September 2026

Top 25 Human resources AI software companies based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 3,396 companies tracked

RevenueBase identified 3,396 human resources AI software companies headquartered in the United States as of September 2026 and tracks 221,447 professional contacts across them, including 72,456 with verified work emails. San Francisco is the largest hub.

This list covers human resources AI 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 28, 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 28, 2026 86% judged on-target in blind review

3,396Companies

221,447Contacts tracked

72,456Verified emails

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The 25 largest human resources AI software companies based in the United States

Ranked by team size

Top 25 of 3,396 human resources AI software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to human resources AI software companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ADP	Indirect evidence	Roseland, NJ, United StatesHQ checked Sep 28, 2026	10001+	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 28, 2026
2	Workday	Partial evidence	Pleasanton, CA, United StatesHQ checked Sep 28, 2026	10001+	20,846 contacts →
	Partial evidence “By unifying HR and Finance on an open, trusted platform powered by AI, Workday delivers high-impact outcomes our customers can count on.” Source: RevenueBase Database · checked Sep 28, 2026
3	Turing	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	6,094 contacts →
	Partial evidence “Turing is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems.” Source: RevenueBase Database · checked Sep 28, 2026
4	XEBIA	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	5,116 contacts →
	Strong evidence “Xebia is a global, award-winning, AI-first consulting, software engineering, and training company.” Source: RevenueBase Database · checked Sep 28, 2026
5	Insperity	Indirect evidence	Kingwood, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,761 contacts →
	Indirect evidence “Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Source: RevenueBase Database · checked Sep 28, 2026
6	Ceridian	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 28, 2026	5,001-10,000	4,006 contacts →
	Indirect evidence “Ceridian is now Dayforce.” Source: RevenueBase Database · checked Sep 28, 2026
7	PSG Global Solutions	Indirect evidence	Marina Del Rey, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,000 contacts →
	Indirect evidence “PSG is a global leader in recruitment process optimization, delivering high-performance outsourced recruiting solutions that drive real business results.” Source: RevenueBase Database · checked Sep 28, 2026
8	Cornerstone Ondemand	Indirect evidence	Santa Monica, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,619 contacts →
	Indirect evidence “Cornerstone powers the potential of organizations and their people to thrive in a changing world.” Source: RevenueBase Database · checked Sep 28, 2026
9	Skillsoft	Strong evidence	Nashua, NH, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,763 contacts →
	Strong evidence “Skillsoft (NYSE: SKIL) is a global leader in AI-native skills management for the human + AI era.” Source: RevenueBase Database · checked Sep 28, 2026
10	24 Seven Talent	Indirect evidence	NY, United StatesHQ checked Sep 28, 2026	n/a	2,554 contacts →
	Indirect evidence “24 Seven partners with companies to get marketing, creative, and digital work done by providing the right talent, innovation, and insights.” Source: RevenueBase Database · checked Sep 28, 2026
11	Mindlance	Indirect evidence	Union, NJ, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,096 contacts →
	Indirect evidence “Mindlance is a global Talent, Teams, Projects, and Workforce Solutions partner, serving leading enterprises across industries since With a strong footprint across multiple…” Source: RevenueBase Database · checked Sep 28, 2026
12	SAP Successfactors	Strong evidence	South San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,948 contacts →
	Strong evidence “SAP SuccessFactors is SAP’s cloud human capital management (HCM) suite built for Autonomous HCM-powered by AI and guided by people.” Source: RevenueBase Database · checked Sep 28, 2026
13	Infobeans	Strong evidence	Danville, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,823 contacts →
	Strong evidence “InfoBeans specializes in AI-first software development and implementation for its enterprise clients to solve their most complex business problems.” Source: RevenueBase Database · checked Sep 28, 2026
14	Bamboohr	Indirect evidence	Draper, UT, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,812 contacts →
	Indirect evidence “For 16 years, BambooHR has embarked on a mission to help organizations and their employees build better workplaces and achieve their unique missions.” Source: RevenueBase Database · checked Sep 28, 2026
15	Optimhire	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	n/a	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 28, 2026
16	E-Solutions	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,669 contacts →
	Indirect evidence “Empowering Technology Services” Founded in 2003, we are in our 22th year of structured growth.” Source: RevenueBase Database · checked Sep 28, 2026
17	HIBOB	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
18	Avature	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
19	Darwinbox	Indirect evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,504 contacts →
	Indirect evidence “Darwinbox is a new-age, agile HCM Suite that enables enterprises and growing businesses to automate their day-to-day HR processes, deliver actionable insights and build better…” Source: RevenueBase Database · checked Sep 28, 2026
20	Bcforward	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 28, 2026	5,001-10,000	1,448 contacts →
	Indirect evidence “BCforward is a global talent and technology solutions partner helping organizations accelerate outcomes through people, platforms, and expertise.” Source: RevenueBase Database · checked Sep 28, 2026
21	SSS	Partial evidence	Littleton, CO, United StatesHQ checked Sep 28, 2026	n/a	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 28, 2026
22	Saba Software	Indirect evidence	Dublin, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,086 contacts →
	Indirect evidence “At Saba, we know that every organization has the potential to be a great place to work, and no matter what your business does, or who you serve, or what you sell, success starts…” Source: RevenueBase Database · checked Sep 28, 2026
23	Radancy	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,062 contacts →
	Indirect evidence “At Radancy, we’re delivering the future of hiring.” Source: RevenueBase Database · checked Sep 28, 2026
24	Statusneo	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,045 contacts →
	Partial evidence “All enterprises are racing to adopt AI.” Source: RevenueBase Database · checked Sep 28, 2026
25	Intellipro	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	501-1,000	990 contacts →
	Indirect evidence “IntelliPro Group Inc.” Source: RevenueBase Database · checked Sep 28, 2026

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: human resources AI 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 human resources AI software companies.
Partial evidence: Its own public description names part of human resources AI software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name human resources AI 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 3,396 human resources AI software companies based in the United States

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Human resources AI software companies based in the United States at a glance

As of Sep 28, 2026

32.7%Verified-email coverage

65.2Average contacts per company

1-10Median size (employees)

8.0%Largest-city concentration · San Francisco

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,882

11-50

991

51-200

360

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 3,396 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 human resources AI 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 “human resources AI 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 human resources AI 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 human resources AI 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, 72,456 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 28, 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.

Human resources AI software 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 human resources AI 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 human resources AI software companies are there based in the United States?

RevenueBase identified 3,396 human resources AI 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 human resources AI software companies?

San Francisco leads with 272 headquartered companies, followed by New York (247) and Austin (113).

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 72,456 verified decision-maker contacts tracked across these 3,396 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 28, 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.