Company lists · Data refreshed September 2026

Top 25 Government consulting organizations based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 9,699 companies tracked

RevenueBase identified 9,699 government consulting organizations headquartered in the United States as of September 2026 and tracks 134,353 professional contacts across them, including 47,020 with verified work emails. Washington is the largest hub.

This list covers government consulting organizations 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

9,699Companies

134,353Contacts tracked

47,020Verified emails

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The 25 largest government consulting organizations based in the United States

Ranked by team size

Top 25 of 9,699 government consulting organizations based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to government consulting organizations: 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 19, 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 19, 2026
2	Kearney	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	5,001-10,000	6,978 contacts →
	Partial evidence “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: RevenueBase Database · checked Sep 19, 2026
3	Public Consulting Group	Partial evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,694 contacts →
	Partial evidence “Public Consulting Group (PCG) is a leading public sector solutions implementation and operations improvement firm that partners with health, education, and human services agencies…” Source: RevenueBase Database · checked Sep 19, 2026
4	Frost & Sullivan	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,330 contacts →
	Indirect evidence “For over six decades, Frost & Sullivan has helped the world’s top companies toward transformational growth journeys that result in a stream of innovative growth opportunities.” Source: RevenueBase Database · checked Sep 19, 2026
5	Sikich	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,688 contacts →
	Partial evidence “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Source: RevenueBase Database · checked Sep 19, 2026
6	Charles River Associates	Partial evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,479 contacts →
	Partial evidence “Charles River Associates (CRA) is a global consulting firm specializing in litigation, regulatory, financial, and management consulting.” Source: RevenueBase Database · checked Sep 19, 2026
7	Davey Resource Group, INC	Partial evidence	Kent, OH, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,395 contacts →
	Partial evidence “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Source: RevenueBase Database · checked Sep 19, 2026
8	Ardurra	Indirect evidence	Miami, FL, United StatesHQ checked Sep 19, 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 19, 2026
9	W3global	Partial evidence	Frisco, TX, United StatesHQ checked Sep 19, 2026	501-1,000	1,149 contacts →
	Partial evidence “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Source: RevenueBase Database · checked Sep 19, 2026
10	Navigant	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,029 contacts →
	Partial evidence “Guidehouse is a leading global provider of consulting services to the public and commercial markets with broad capabilities in management, technology, and risk consulting.” Source: RevenueBase Database · checked Sep 19, 2026
11	Kearney & Company	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	999 contacts →
	Partial evidence “Established in 1985, Kearney & Company is the largest Certified Public Accounting (CPA) firm in the country exclusively focused on the government.” Source: RevenueBase Database · checked Sep 19, 2026
12	The Vertex Companies LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 19, 2026	501-1,000	765 contacts →
	Partial evidence “The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…” Source: RevenueBase Database · checked Sep 19, 2026
13	ERG	Partial evidence	Concord, MA, United StatesHQ checked Sep 19, 2026	501-1,000	663 contacts →
	Partial evidence “ERG is a multidisciplinary consulting firm offering a broad range of professional services.” Source: RevenueBase Database · checked Sep 19, 2026
14	Analytix Solutions	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 19, 2026	501-1,000	640 contacts →
	Indirect evidence “Welcome to Analytix Solutions!” Source: RevenueBase Database · checked Sep 19, 2026
15	Salient Crgt	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	639 contacts →
	Indirect evidence “For over 20 years, Salient CRGT has upheld its mission to "empower our diverse, hard-working team to deliver high-value solutions that make positive impacts on missions and…” Source: RevenueBase Database · checked Sep 19, 2026
16	Planned Systems International	Partial evidence	Columbia, MD, United StatesHQ checked Sep 19, 2026	1,001-5,000	611 contacts →
	Partial evidence “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Source: RevenueBase Database · checked Sep 19, 2026
17	Acumen, LLC	Indirect evidence	Burlingame, CA, United StatesHQ checked Sep 19, 2026	501-1,000	570 contacts →
	Indirect evidence “Acumen, LLC works to improve the information provided to policymakers who design and revise welfare, health, education, labor, and business programs at the national, state, and…” Source: RevenueBase Database · checked Sep 19, 2026
18	GSA National	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 19, 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 19, 2026
19	Solomonedwards	Indirect evidence	Wayne, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	557 contacts →
	Indirect evidence “For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…” Source: RevenueBase Database · checked Sep 19, 2026
20	DLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 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 19, 2026
21	Life Cycle Engineering	Partial evidence	Charleston, SC, United StatesHQ checked Sep 19, 2026	501-1,000	539 contacts →
	Partial evidence “Life Cycle Engineering (LCE) provides consulting, engineering, information technology and education solutions that deliver lasting results for private industry, public entities…” Source: RevenueBase Database · checked Sep 19, 2026
22	NEW York State Technology Enterprise Corporation Nystec	Partial evidence	Rome, NY, United StatesHQ checked Sep 19, 2026	201-500	480 contacts →
	Partial evidence “For more than 30 years, NYSTEC has provided independent advisory services to our government partners.” Source: RevenueBase Database · checked Sep 19, 2026
23	The Mannik & Smith Group, INC	Indirect evidence	Maumee, OH, United StatesHQ checked Sep 19, 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 19, 2026
24	Lockwood, Andrews & Newnam, Inc. LAN	Partial evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	201-500	461 contacts →
	Partial evidence “Lockwood, Andrews & Newnam, Inc.(LAN) is a full-service consulting firm offering planning, engineering and program management services.” Source: RevenueBase Database · checked Sep 19, 2026
25	Remington & Vernick Engineers	Indirect evidence	Cherry Hill, NJ, United StatesHQ checked Sep 19, 2026	501-1,000	438 contacts →
	Indirect evidence “Founded in 1901, RVE has grown to be an industry leader with 500 team members in offices throughout New Jersey, Pennsylvania, Delaware, Maryland and North Carolina.” Source: RevenueBase Database · checked Sep 19, 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 consulting organizations. 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 consulting organizations.
Partial evidence: Its own public description names part of government consulting organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government consulting organizations. 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 9,699 government consulting organizations based in the United States

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Government consulting organizations based in the United States at a glance

As of Sep 19, 2026

35.0%Verified-email coverage

13.9Average contacts per company

1-10Median size (employees)

6.0%Largest-city concentration · Washington

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

6,813

11-50

1,970

51-200

676

201-500

152

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 9,699 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 consulting organizations, 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 consulting organizations”. 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 consulting organizations), 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 consulting organizations, 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, 47,020 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.

Government consulting organizations 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 consulting organizations, 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 consulting organizations are there based in the United States?

RevenueBase identified 9,699 government consulting organizations 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 consulting organizations?

Washington leads with 585 headquartered companies, followed by New York (270) and Atlanta (192).

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 47,020 verified decision-maker contacts tracked across these 9,699 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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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.