Company lists · Data refreshed September 2026

Top 25 Government HR consulting firms based in the United States

Name: Government 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 28, 2026 4,149 companies tracked

RevenueBase identified 4,149 government HR consulting firms headquartered in the United States as of September 2026 and tracks 48,125 professional contacts across them, including 17,780 with verified work emails. Washington is the largest hub.

This list covers government HR consulting firms 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

4,149Companies

48,125Contacts tracked

17,780Verified emails

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The 25 largest government HR consulting firms based in the United States

Ranked by team size

Top 25 of 4,149 government HR consulting firms 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 government HR consulting firms: 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	Protiviti	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	5,001-10,000	8,779 contacts →
	Partial evidence “Protiviti is a global consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently face the…” Source: RevenueBase Database · checked Sep 28, 2026
2	Allegis Global Solutions	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,866 contacts →
	Indirect evidence “At Allegis Global Solutions (AGS), we’re in the human enterprise business.” Source: RevenueBase Database · checked Sep 28, 2026
3	Ardurra	Indirect evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,260 contacts →
	Indirect evidence “Expertly balancing experience and innovation to deliver unique solutions to public and private clients.” Source: RevenueBase Database · checked Sep 28, 2026
4	GSA National	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 28, 2026	201-500	558 contacts →
	Partial evidence “GSA National has been helping government contractors ensure compliance and streamline costs since 1991.” Source: RevenueBase Database · checked Sep 28, 2026
5	DLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	546 contacts →
	Partial evidence “DLC is an award-winning industry leader in Finance, Accounting, Program Management & Process Improvement Consulting.” Source: RevenueBase Database · checked Sep 28, 2026
6	The Mannik & Smith Group, INC	Indirect evidence	Maumee, OH, United StatesHQ checked Sep 28, 2026	501-1,000	467 contacts →
	Indirect evidence “Technical skill, relationships and leadership are the foundation of The Mannik & Smith Group, Inc.(MSG) and have been not just a tradition, but a way of doing business for 70…” Source: RevenueBase Database · checked Sep 28, 2026
7	Edgewater Federal Solutions, INC	Strong evidence	Frederick, MD, United StatesHQ checked Sep 28, 2026	501-1,000	410 contacts →
	Strong evidence “Edgewater Federal Solutions was founded in 2002 with the mission of being the best IT consulting company possible for our government clients, our contracting partners and our…” Source: RevenueBase Database · checked Sep 28, 2026
8	JPI	Partial evidence	Blacksburg, VA, United StatesHQ checked Sep 28, 2026	51-200	373 contacts →
	Partial evidence “JPI is an Information Technology and Program Management Consulting Firm.” Source: RevenueBase Database · checked Sep 28, 2026
9	Management Concepts	Indirect evidence	Tysons Corner, VA, United StatesHQ checked Sep 28, 2026	201-500	359 contacts →
	Indirect evidence “Management Concepts is the nation’s premier provider of learning solutions and human capital advisory services for the public sector.” Source: RevenueBase Database · checked Sep 28, 2026
10	Deep Water Point & Associates	Partial evidence	Annapolis, MD, United StatesHQ checked Sep 28, 2026	201-500	350 contacts →
	Partial evidence “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Source: RevenueBase Database · checked Sep 28, 2026
11	Peerless Technologies Corporation	Partial evidence	Fairborn, OH, United StatesHQ checked Sep 28, 2026	201-500	326 contacts →
	Partial evidence “Peerless Technologies Corporation is a nationally recognized, award-winning, and reputable business serving federal government clients at more than 25 locations nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
12	Iquasar LLC	Indirect evidence	Sterling, VA, United StatesHQ checked Sep 28, 2026	201-500	312 contacts →
	Indirect evidence “Based in Sterling, Virginia, iQuasar LLC, with over 20 years of experience, we help small and medium businesses grow in the federal marketplace through Proposal Development…” Source: RevenueBase Database · checked Sep 28, 2026
13	YRCI	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	201-500	291 contacts →
	Indirect evidence “When the Nation Calls, YRCI Answers.” Source: RevenueBase Database · checked Sep 28, 2026
14	Capitol Bridge	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	51-200	289 contacts →
	Partial evidence “Capitol Bridge is a leading services provider for State and Federal government customers” Source: RevenueBase Database · checked Sep 28, 2026
15	CSG Government Solutions	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	287 contacts →
	Partial evidence “CSG is a national leader in planning, managing and supporting complex projects that modernize the IT and business processes of large government programs.” Source: RevenueBase Database · checked Sep 28, 2026
16	Cbeyondata SMX	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	201-500	266 contacts →
	Partial evidence “cBEYONData improves the business of government by understanding the overlapping relationship between data and dollars.” Source: RevenueBase Database · checked Sep 28, 2026
17	TCG	Indirect evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	51-200	263 contacts →
	Indirect evidence “Traditional we are not.” Source: RevenueBase Database · checked Sep 28, 2026
18	SSA Consultants	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 28, 2026	n/a	258 contacts →
	Partial evidence “We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Source: RevenueBase Database · checked Sep 28, 2026
19	Manhattan Strategy Group	Strong evidence	Bethesda, MD, United StatesHQ checked Sep 28, 2026	51-200	257 contacts →
	Strong evidence “Manhattan Strategy is a boutique research and management consulting firm dedicated to helping our government and commercial clients achieve performance excellence.” Source: RevenueBase Database · checked Sep 28, 2026
20	Netimpact Strategies INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	201-500	254 contacts →
	Partial evidence “NetImpact has been a Trusted Advisor driving impact through digital transformation for the Federal Government for over a decade.” Source: RevenueBase Database · checked Sep 28, 2026
21	Interwest Consulting Group	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	201-500	221 contacts →
	Partial evidence “Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.” Source: RevenueBase Database · checked Sep 28, 2026
22	CPS HR Consulting	Strong evidence	Sacramento, CA, United StatesHQ checked Sep 28, 2026	51-200	200 contacts →
	Strong evidence “For over 40 years, CPS HR Consulting has delivered trusted HR solutions that strengthen the public sector.” Source: RevenueBase Database · checked Sep 28, 2026
23	Careersource South Florida	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	51-200	198 contacts →
	Partial evidence “We are your partner in business providing solutions from recruitment, assessment, training, development, career management, outsourcing, and workforce consulting.” Source: RevenueBase Database · checked Sep 28, 2026
24	Acuity, INC	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	201-500	197 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
25	ASI Government	Partial evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	51-200	192 contacts →
	Partial evidence “For nearly two decades, ASI Government has served as a trusted advisor to government leaders seeking to improve mission performance, enhance organizational effectiveness and drive…” 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: government HR consulting firms. 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 government HR consulting firms.
Partial evidence: Its own public description names part of government HR consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government HR consulting firms. 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 4,149 government HR consulting firms based in the United States

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Government HR consulting firms based in the United States at a glance

As of Sep 28, 2026

36.9%Verified-email coverage

11.6Average contacts per company

1-10Median size (employees)

5.8%Largest-city concentration · Washington

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,103

11-50

752

51-200

219

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 4,149 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 government HR consulting firms, 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 “government HR consulting firms”. 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 government HR consulting firms), 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 government HR consulting firms, 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, 17,780 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.

Government HR consulting firms 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 government HR consulting firms, 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 government HR consulting firms are there based in the United States?

RevenueBase identified 4,149 government HR consulting firms 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?

Protiviti, headquartered in Menlo Park, tops this list with the largest team on record.

Which city has the most government HR consulting firms?

Washington leads with 242 headquartered companies, followed by Atlanta (101) and New York (82).

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 17,780 verified decision-maker contacts tracked across these 4,149 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.