Company lists · Data refreshed September 2026

Top 25 Government contractors based in the United States

RevenueBase identified 2,719 government contractors headquartered in the United States as of September 2026 and tracks 289,090 professional contacts across them, including 40,734 with verified work emails. Washington is the largest hub.

This list covers government contractors 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 16, 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 16, 2026 86% judged on-target in blind review
2,719Companies
289,090Contacts tracked
40,734Verified emails
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The 25 largest government contractors based in the United States

Ranked by team size
Top 25 of 2,719 government contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to government contractors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceFalls Church, VA, United StatesHQ checked Sep 16, 202610001+74,984 contacts →

Indirect evidence

“We are a close-knit community of big thinkers collaborating to keep the world safe.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceFalls Church, VA, United StatesHQ checked Sep 16, 202610001+23,974 contacts →

Indirect evidence

“GDIT is a global technology and professional services company that delivers solutions, technology and mission services to every major agency across the U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceReston, VA, United StatesHQ checked Sep 16, 202610001+10,793 contacts →

Indirect evidence

“At Peraton, we're at the forefront of delivering the next big thing every day.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceMclean, VA, United StatesHQ checked Sep 16, 202610001+9,964 contacts →

Indirect evidence

“DynCorp International is now part of Amentum.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceHerndon, VA, United StatesHQ checked Sep 16, 20265,001-10,0009,697 contacts →

Indirect evidence

“MANTECH is more than a technology company.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceReston, VA, United StatesHQ checked Sep 16, 20265,001-10,0004,542 contacts →

Indirect evidence

“ASRC Federal’s employees provide solutions for more than 30 U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 16, 202610001+3,483 contacts →

Indirect evidence

“When you’ve been around for more than a century, you know a thing or two!”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceFalls Church, VA, United StatesHQ checked Sep 16, 202610001+3,478 contacts →

Indirect evidence

“Since 1955, PAE has been a critical partner of the U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceColorado Springs, CO, United StatesHQ checked Sep 16, 20265,001-10,0003,474 contacts →

Indirect evidence

“About Vectrus For more than 70 years, Vectrus has provided critical mission support for our customers’ toughest operational challenges.”

Source: RevenueBase Database · checked Sep 16, 2026
10Strong evidenceMclean, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,899 contacts →

Strong evidence

“Founded in 1975, AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of…”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceAlexandria, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,898 contacts →

Partial evidence

“DCS delivers advanced technology and management solutions to Government agencies in the national security sector.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceReston, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,859 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceAnchorage, AK, United StatesHQ checked Sep 16, 20265,001-10,0001,853 contacts →

Partial evidence

“As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceChantilly, VA, United StatesHQ checked Sep 16, 202610001+1,753 contacts →

Indirect evidence

“At Perspecta we question, we seek and we solve.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceHerndon, VA, United StatesHQ checked Sep 16, 20265,001-10,0001,698 contacts →

Partial evidence

“Akima is a global enterprise delivering comprehensive solutions to the federal government in the core areas of information technology; facilities & ground logistics; aerospace…”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceMclean, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,683 contacts →

Indirect evidence

“DMI is a leading provider of digital services and technology solutions with a focus on end-to-end managed services, including managed mobility, cloud, cybersecurity, network…”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceSpringfield, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,651 contacts →

Partial evidence

“UIC Government Services and its Bowhead Family of Companies are a division of Ukpeaġvik Iñupiat Corporation, an Alaskan Native Corporation.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceCape Canaveral, FL, United StatesHQ checked Sep 16, 20261,001-5,0001,408 contacts →

Indirect evidence

“At Intrepid Global Solutions, we lead the way in mission-critical support where others can’t.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceHuntsville, AL, United StatesHQ checked Sep 16, 2026501-1,0001,277 contacts →

Indirect evidence

“Founded in October 2002, Torch is a 100% employee-owned business headquartered in Huntsville, Alabama.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceArlington, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,260 contacts →

Indirect evidence

“GardaWorld Federal”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceReston, VA, United StatesHQ checked Sep 16, 20265,001-10,0001,245 contacts →

Indirect evidence

“Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceAlexandria, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,168 contacts →

Indirect evidence

“VTG delivers force modernization and digital transformation solutions that expand America’s competitive advantage in the modern battlespace.”

Source: RevenueBase Database · checked Sep 16, 2026
23Strong evidenceBroomfield, CO, United StatesHQ checked Sep 16, 2026n/a1,000 contacts →

Strong evidence

“Gov-Con provides financial and accounting solutions for government contractors such as SBIR Award Winners, DoD contractors, Prime Contractors and Subcontractors.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceTrevose, PA, United StatesHQ checked Sep 16, 2026201-500979 contacts →

Indirect evidence

“PPC is now part of DSA”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceAnchorage, AK, United StatesHQ checked Sep 16, 20261,001-5,000954 contacts →

Partial evidence

“Chugach Government Solutions,(CGS) is a government contracting company formed by Chugach Alaska Corporation.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 2,719 government contractors based in the United States

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Government contractors based in the United States at a glance

As of Sep 16, 2026
14.1%Verified-email coverage
106.3Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Washington
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
843
11-50
839
51-200
646
201-500
244
501-1,000
71
1,001-5,000
48
5,001-10,000
10
10001+
13

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 2,719 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 contractors, 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 contractors”. 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 contractors), 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 contractors, 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, 40,734 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 16, 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.

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 contractors, 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 contractors are there based in the United States?

RevenueBase identified 2,719 government contractors 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?

Northrop Grumman, headquartered in Falls Church, tops this list with the largest team on record.

Which city has the most government contractors?

Washington leads with 116 headquartered companies, followed by Reston (85) and Alexandria (75).

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 40,734 verified decision-maker contacts tracked across these 2,719 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 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 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.