Company lists · Data refreshed September 2026

Top 25 Government consulting companies based in the United States

Name: Government consulting 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 21, 2026 3,106 companies tracked

RevenueBase identified 3,106 company matches for government consulting companies associated with the United States as of September 2026 and tracks 46,862 professional contacts across them, including 16,003 with verified work emails. Washington is the largest hub.

This list covers company matches for government consulting companies 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 21, 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 21, 2026 How this list was built

3,106Companies

46,862Contacts tracked

16,003Verified emails

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The 25 largest government consulting companies based in the United States

Ranked by team size

Top 25 of 3,106 company matches for government consulting companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	Protiviti	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
2	ABT Global	Exact match	Rockville, MD, United StatesHQ recorded Sep 21, 2026	1,001-5,000	3,323 contacts →
	Exact match “Abt is a mission-driven consulting and research firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Public Consulting Group	Exact match	Boston, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,694 contacts →
	Exact match “Public Consulting Group (PCG) is a leading public sector solutions implementation and operations improvement firm that partners with health, education, and human services agencies…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Odyssey Systems	Exact match	Wakefield, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	906 contacts →
	Exact match “Odyssey is a leading provider of outstanding management, analytical, and technical support services to both the government and private sectors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	ERG	Exact match	Concord, MA, United StatesHQ recorded Sep 21, 2026	501-1,000	663 contacts →
	Exact match “ERG is a multidisciplinary consulting firm offering a broad range of professional services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Acumen, LLC	Exact match	Burlingame, CA, United StatesHQ recorded Sep 21, 2026	501-1,000	570 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	JBS International, INC	Exact match	North Bethesda, MD, United StatesHQ recorded Sep 21, 2026	201-500	506 contacts →
	Exact match “Established in 1985 by two women, JBS International, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	NEW York State Technology Enterprise Corporation Nystec	Exact match	Rome, NY, United StatesHQ recorded Sep 21, 2026	201-500	480 contacts →
	Exact match “For more than 30 years, NYSTEC has provided independent advisory services to our government partners.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Edgewater Federal Solutions, INC	Exact match	Frederick, MD, United StatesHQ recorded Sep 21, 2026	501-1,000	410 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	JPI	Exact match	Blacksburg, VA, United StatesHQ recorded Sep 21, 2026	51-200	373 contacts →
	Exact match “JPI is an Information Technology and Program Management Consulting Firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Deep Water Point & Associates	Exact match	Annapolis, MD, United StatesHQ recorded Sep 21, 2026	201-500	350 contacts →
	Exact match “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Iquasar LLC	Exact match	Sterling, VA, United StatesHQ recorded Sep 21, 2026	201-500	312 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Cbeyondata SMX	Exact match	Arlington, VA, United StatesHQ recorded Sep 21, 2026	201-500	266 contacts →
	Exact match “cBEYONData improves the business of government by understanding the overlapping relationship between data and dollars.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	TCG	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	263 contacts →
	Exact match “Traditional we are not.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	SSA Consultants	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 21, 2026	n/a	258 contacts →
	Exact match “We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Manhattan Strategy Group	Exact match	Bethesda, MD, United StatesHQ recorded Sep 21, 2026	51-200	257 contacts →
	Exact match “Manhattan Strategy is a boutique research and management consulting firm dedicated to helping our government and commercial clients achieve performance excellence.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	The Lewin Group	Exact match	Falls Church, VA, United StatesHQ recorded Sep 21, 2026	201-500	231 contacts →
	Exact match “The Lewin Group is the Consulting business unit within OptumServe, the federal health services business of Optum and UnitedHealth Group.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Interwest Consulting Group	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	201-500	221 contacts →
	Exact match “Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Kalman & Company, INC	Exact match	Virginia Beach, VA, United StatesHQ recorded Sep 21, 2026	201-500	213 contacts →
	Exact match “Kalman & Company, Inc.(Kalman), headquartered in Virginia Beach, VA, was founded by Barbara and Walter Kalman in 1986.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Acuity, INC	Exact match	Reston, VA, United StatesHQ recorded Sep 21, 2026	201-500	197 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	ICF Macro	Exact match	Fairfax, VA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	197 contacts →
	Exact match “As of April of 2009, Macro International is now part of ICF.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	ASI Government	Exact match	Herndon, VA, United StatesHQ recorded Sep 21, 2026	51-200	192 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Mcallister & Quinn	Exact match	Washington, DC, United StatesHQ recorded Sep 21, 2026	51-200	170 contacts →
	Exact match “McAllister & Quinn is a Washington, DC consulting firm that provides a comprehensive range of services to a diverse group of clients with issues before the federal government.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Sprezzatura	Exact match	Arlington, VA, United StatesHQ recorded Sep 21, 2026	51-200	166 contacts →
	Exact match “Sprez·za·tu·ra (sprāt-tsä-ˈtü-rä) n.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Ripple Effect	Exact match	Rockville, MD, United StatesHQ recorded Sep 21, 2026	201-500	152 contacts →
	Exact match “Ripple Effect provides professional consulting and exceptional talent for federal, private, and non-profit clients to deliver some of the most crucial policies and programs that…” Recorded in the RevenueBase company graph · Sep 21, 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 “government consulting companies”. 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 3,106 government consulting companies based in the United States

See the full list, filter by size, metro and specialty, and access 16,003 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Government consulting companies based in the United States at a glance

As of Sep 21, 2026

34.1%Verified-email coverage

15.1Average contacts per company

1-10Median size (employees)

7.6%Largest-city concentration · Washington

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

2,168

11-50

671

51-200

199

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 3,106 companies.

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 “government consulting companies” 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 16,003 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 21, 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.

Government consulting companies 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 “government consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many government consulting companies are there based in the United States?

RevenueBase identified 3,106 company matches for government consulting companies 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?

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

Which city has the most government consulting companies?

Washington leads with 237 company records, followed by Arlington (70) and New York (70).

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 16,003 professional contacts with verified work emails tracked across these 3,106 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 21, 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.