Company lists · Data refreshed September 2026

Top 25 Federal government contractors based in the United States

Name: Federal government contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 2,383 companies tracked

RevenueBase identified 2,383 company matches for federal government contractors associated with the United States as of September 2026 and tracks 211,520 professional contacts across them, including 38,983 with verified work emails. Washington is the largest hub.

This list covers company matches for federal government contractors 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 16, 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 16, 2026 How this list was built

2,383Companies

211,520Contacts tracked

38,983Verified emails

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The 25 largest federal government contractors based in the United States

Ranked by team size

Top 25 of 2,383 company matches for federal government contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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	Leidos	Exact match	Reston, VA, United StatesHQ recorded Sep 16, 2026	10001+	27,416 contacts →
	Exact match “Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2	General Dynamics Information Technology	Exact match	Falls Church, VA, United StatesHQ recorded Sep 16, 2026	10001+	23,974 contacts →
	Exact match “GDIT is a global technology and professional services company that delivers solutions, technology and mission services to every major agency across the U.S.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3	Peraton	Exact match	Reston, VA, United StatesHQ recorded Sep 16, 2026	10001+	10,793 contacts →
	Exact match “At Peraton, we're at the forefront of delivering the next big thing every day.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4	Dyncorp International	Exact match	Mclean, VA, United StatesHQ recorded Sep 16, 2026	10001+	9,964 contacts →
	Exact match “DynCorp International is now part of Amentum.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Sep 16, 2026	5,001-10,000	9,697 contacts →
	Exact match “MANTECH is more than a technology company.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6	Accenture Federal Services	Exact match	Arlington, VA, United StatesHQ recorded Sep 16, 2026	10001+	9,125 contacts →
	Exact match “We power reinvention across the US federal government to help agencies deliver greater outcomes using proven commercial solutions, mission expertise, and new technologies – cloud…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7	Asrc Federal	Exact match	Reston, VA, United StatesHQ recorded Sep 16, 2026	5,001-10,000	4,542 contacts →
	Exact match “ASRC Federal’s employees provide solutions for more than 30 U.S.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8	DAY & Zimmermann	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 16, 2026	10001+	3,483 contacts →
	Exact match “When you’ve been around for more than a century, you know a thing or two!” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9	PAE	Exact match	Falls Church, VA, United StatesHQ recorded Sep 16, 2026	10001+	3,478 contacts →
	Exact match “Since 1955, PAE has been a critical partner of the U.S.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10	Vectrus	Exact match	Colorado Springs, CO, United StatesHQ recorded Sep 16, 2026	5,001-10,000	3,474 contacts →
	Exact match “About Vectrus For more than 70 years, Vectrus has provided critical mission support for our customers’ toughest operational challenges.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11	LMI	Exact match	Tysons, VA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	2,580 contacts →
	Exact match “LMI is a new breed of digital solutions provider, disrupting the traditional govcon model with commercial-grade technology that is ready day-one.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12	American Systems	Exact match	Mclean, VA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	1,899 contacts →
	Exact match “Founded in 1975, AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13	DCS Corp	Exact match	Alexandria, VA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	1,898 contacts →
	Exact match “DCS delivers advanced technology and management solutions to Government agencies in the national security sector.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14	SOSI	Exact match	Reston, VA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	1,859 contacts →
	Exact match “Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private, founder-led defense and government solutions firm specializing in advanced technology systems and mission…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15	Chenega Corporation	Exact match	Anchorage, AK, United StatesHQ recorded Sep 16, 2026	5,001-10,000	1,853 contacts →
	Exact match “As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16	Perspecta	Exact match	Chantilly, VA, United StatesHQ recorded Sep 16, 2026	10001+	1,753 contacts →
	Exact match “At Perspecta we question, we seek and we solve.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17	AKIMA	Exact match	Herndon, VA, United StatesHQ recorded Sep 16, 2026	5,001-10,000	1,698 contacts →
	Exact match “Akima is a global enterprise delivering comprehensive solutions to the federal government in the core areas of information technology; facilities & ground logistics; aerospace…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18	Uicgs Bowhead Family Of Companies	Exact match	Springfield, VA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	1,651 contacts →
	Exact match “UIC Government Services and its Bowhead Family of Companies are a division of Ukpeaġvik Iñupiat Corporation, an Alaskan Native Corporation.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19	PPC	Exact match	Trevose, PA, United StatesHQ recorded Sep 16, 2026	201-500	979 contacts →
	Exact match “PPC is now part of DSA” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20	Chugach Government Solutions, LLC	Exact match	Anchorage, AK, United StatesHQ recorded Sep 16, 2026	1,001-5,000	954 contacts →
	Exact match “Chugach Government Solutions,(CGS) is a government contracting company formed by Chugach Alaska Corporation.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21	The MIL Corporation	Exact match	Bowie, MD, United StatesHQ recorded Sep 16, 2026	501-1,000	941 contacts →
	Exact match “Established in 1980, MIL provides innovative cyber, engineering, financial, and information technology services to the federal government.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22	Odyssey Systems	Exact match	Wakefield, MA, United StatesHQ recorded Sep 16, 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 16, 2026 · View company records in RevenueBase
23	REI Systems	Exact match	Sterling, VA, United StatesHQ recorded Sep 16, 2026	501-1,000	863 contacts →
	Exact match “REI Systems delivers reliable and innovative technology solutions that empower federal, state, local, and nonprofit organizations to achieve their missions.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24	Iron BOW Technologies	Exact match	Herndon, VA, United StatesHQ recorded Sep 16, 2026	501-1,000	841 contacts →
	Exact match “We deliver mission success through next-generation solutions across government, healthcare, and commercial markets.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25	Cognosante	Exact match	Falls Church, VA, United StatesHQ recorded Sep 16, 2026	1,001-5,000	829 contacts →
	Exact match “At Cognosante, we help create a safe, healthy, more equitable nation for all.” Recorded in the RevenueBase company graph · Sep 16, 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 “federal government contractors”. 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 2,383 federal government contractors based in the United States

See the full list, filter by size, metro and specialty, and access 38,983 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Federal government contractors based in the United States at a glance

As of Sep 16, 2026

18.4%Verified-email coverage

88.8Average contacts per company

11-50Median size (employees)

5.5%Largest-city concentration · Washington

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

806

11-50

761

51-200

537

201-500

182

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 2,383 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 “federal government contractors” 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 38,983 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 16, 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.

Federal government contractors 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 “federal government contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many federal government contractors are there based in the United States?

RevenueBase identified 2,383 company matches for federal government contractors 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?

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

Which city has the most federal government contractors?

Washington leads with 130 company records, followed by Reston (84) and Alexandria (64).

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 38,983 professional contacts with verified work emails tracked across these 2,383 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 16, 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.