Company lists · Data refreshed September 2026

Top 25 HR consulting firms based in the United States

Name: HR consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 17,243 companies tracked

RevenueBase identified 17,243 company matches for HR consulting firms associated with the United States as of September 2026 and tracks 341,894 professional contacts across them, including 102,698 with verified work emails and 99,764 with mobile numbers. New York is the largest hub.

This list covers company matches for HR consulting firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 30, 2026 How this list was built

17,243Companies

341,894Contacts tracked

102,698Verified emails

99,764Mobile numbers

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The 25 largest HR consulting firms based in the United States

Ranked by team size

Top 25 of 17,243 company matches for HR consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ADP	Exact match	Roseland, NJ, United StatesHQ recorded Sep 30, 2026	10001+	84,166 contacts →
	Exact match “Designing better ways to work through cutting-edge products, premium services and exceptional experiences that enable people to reach their full potential.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	Manpowergroup	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 30, 2026	10001+	27,063 contacts →
	Exact match “ManpowerGroup® (NYSE: MAN), the leading global workforce solutions company, helps organizations transform in a fast-changing world of work by sourcing, assessing, developing and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Insight Global	Exact match	Atlanta, GA, United StatesHQ recorded Sep 30, 2026	n/a	15,553 contacts →
	Exact match “Insight Global is an international talent and consulting company that delivers business outcomes in an ever-changing world.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Korn Ferry	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 30, 2026	10001+	13,486 contacts →
	Exact match “Korn Ferry is a global consulting firm that powers performance.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	LHH	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 30, 2026	10001+	12,889 contacts →
	Exact match “At LHH, we believe work should be meaningful, fulfilling, and connected.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 30, 2026	5,001-10,000	8,779 contacts →
	Exact match “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Randstad USA	Exact match	Atlanta, GA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	8,522 contacts →
	Exact match “Randstad North America, Inc.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Insperity	Exact match	Kingwood, TX, United StatesHQ recorded Sep 30, 2026	1,001-5,000	4,761 contacts →
	Exact match “Since 1986, Insperity’s mission has been to help businesses succeed so communities prosper.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Ceridian	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 30, 2026	5,001-10,000	4,006 contacts →
	Exact match “Ceridian is now Dayforce.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Heidrick & Struggles	Exact match	Chicago, IL, United StatesHQ recorded Sep 30, 2026	1,001-5,000	3,376 contacts →
	Exact match “Heidrick & Struggles is the premier provider of executive search, corporate culture and leadership consulting services.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Allegis Global Solutions	Exact match	Hanover, MD, United StatesHQ recorded Sep 30, 2026	1,001-5,000	2,866 contacts →
	Exact match “At Allegis Global Solutions (AGS), we’re in the human enterprise business.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Paycor	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 30, 2026	1,001-5,000	2,615 contacts →
	Exact match “Paycor’s HR, payroll, and talent platform connects leaders to people, data, and expertise.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Aston Carter	Exact match	Hanover, MD, United StatesHQ recorded Sep 30, 2026	1,001-5,000	2,437 contacts →
	Exact match “Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Right Management	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 30, 2026	1,001-5,000	2,326 contacts →
	Exact match “Right Management is our global talent management offering for outplacement, career management and leader development solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	The Judge Group	Exact match	Wayne, PA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	2,202 contacts →
	Exact match “The Judge Group is an international leader in business technology consulting, talent solutions, and learning and development.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Franklincovey	Exact match	Draper, UT, United StatesHQ recorded Sep 30, 2026	501-1,000	1,816 contacts →
	Exact match “We give strategy the human edge™.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Manpowergroup Talent Solutions	Exact match	Milwaukee, WI, United StatesHQ recorded Sep 30, 2026	5,001-10,000	1,570 contacts →
	Exact match “Talent Solutions combines our leading global offerings RPO, TAPFIN-MSP and Right Management to provide end-to-end, data-driven capabilities across the talent lifecycle.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	DDI Development Dimensions International	Exact match	Bridgeville, PA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,540 contacts →
	Exact match “At DDI, we believe a better future starts with better leaders.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	NIIT	Exact match	Atlanta, GA, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,456 contacts →
	Exact match “NIIT MTS is the trusted and award-winning L&D and talent partner for the world’s leading companies in over 33 countries.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Ceb, NOW Gartner	Exact match	Arlington, VA, United StatesHQ recorded Sep 30, 2026	10001+	1,158 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	SEGAL	Exact match	New York, NY, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,149 contacts →
	Exact match “Segal is a leading employee-owned consulting firm with more than 1,100 professionals across North America, including 150+ credentialed actuaries.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	W3global	Exact match	Frisco, TX, United StatesHQ recorded Sep 30, 2026	501-1,000	1,149 contacts →
	Exact match “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Wilson	Exact match	Tampa, FL, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,091 contacts →
	Exact match “Wilson drives business results through its integrated talent solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Talogy	Exact match	Pittsburgh, PA, United StatesHQ recorded Sep 30, 2026	501-1,000	1,073 contacts →
	Exact match “At Talogy, we're proud to be one of the world's leading talent management solution providers.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	GUILD	Exact match	Denver, CO, United StatesHQ recorded Sep 30, 2026	1,001-5,000	1,042 contacts →
	Exact match “Guild is transforming how forward-thinking employers build talent to drive business innovation and growth.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “HR consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 17,243 HR consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 102,698 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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HR consulting firms based in the United States at a glance

As of Sep 30, 2026

30.0%Verified-email coverage

29.2%Mobile-number coverage

19.8Average contacts per company

1-10Median size (employees)

4.8%Largest-city concentration · New York

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

13,327

11-50

2,812

51-200

724

201-500

186

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 32.0d

29,9920–30

68,11231–60

3,46361–90

9690–180

1,035180+

Company record updated

Median 93.0d

00–30

55,24331–60

97,52961–90

164,48290–180

24,640180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “HR consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 102,698 professional contacts with verified work emails across the full matched dataset. 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 30, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

HR consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “HR consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many HR consulting firms are there based in the United States?

RevenueBase identified 17,243 company matches for HR consulting firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ADP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most HR consulting firms?

New York leads with 824 company records, followed by Atlanta (496) and Chicago (417).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 102,698 professional contacts with verified work emails tracked across these 17,243 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 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 SmartSearch, 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.