Company lists · Data refreshed October 2026

Top 25 Federal IT contractors worldwide

Name: Federal IT contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 7,264 companies tracked

RevenueBase identified 7,264 company matches for federal IT contractors worldwide as of October 2026 and tracks 307,864 professional contacts across them, including 63,498 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers company matches for federal IT contractors worldwide, 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 October 12, 2026. Country and city lists for federal IT contractors follow the table.

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 Oct 12, 2026 How this list was built

7,264Companies

307,864Contacts tracked

63,498Verified emails

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The 25 largest federal IT contractors worldwide

Ranked by team size

Top 25 of 7,264 company matches for federal IT contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 Oct 12, 2026	10001+	28,359 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 · Oct 12, 2026 · View company records in RevenueBase
2	General Dynamics Information Technology	Exact match	Falls Church, VA, United StatesHQ recorded Oct 12, 2026	10001+	24,883 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 · Oct 12, 2026 · View company records in RevenueBase
3	Peraton	Exact match	Reston, VA, United StatesHQ recorded Oct 12, 2026	10001+	10,966 contacts →
	Exact match “At Peraton, we're at the forefront of delivering the next big thing every day.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Oct 12, 2026	5,001-10,000	9,912 contacts →
	Exact match “About Us: At MANTECH, we believe national security demands more than technology-it requires an unwavering dedication to the mission and the warfighters who defend it.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Accenture Federal Services	Exact match	Arlington, VA, United StatesHQ recorded Oct 12, 2026	10001+	9,597 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 · Oct 12, 2026 · View company records in RevenueBase
6	Datacom	Exact match	Auckland, New ZealandHQ recorded Oct 12, 2026	5,001-10,000	6,126 contacts →
	Exact match “Customer focused values.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Asrc Federal	Exact match	Reston, VA, United StatesHQ recorded Oct 12, 2026	5,001-10,000	4,577 contacts →
	Exact match “ASRC Federal’s employees provide solutions for more than 30 U.S.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Carahsoft	Exact match	Reston, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	4,005 contacts →
	Exact match “Carahsoft is The Trusted IT Solutions Provider®, supporting Federal, State, Local Government, Education, Healthcare and Private Sector industries.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Quest Software	Exact match	Austin, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	3,329 contacts →
	Exact match “At Quest Software, we help organizations build modern, trusted foundations for AI.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	LMI	Exact match	Tysons, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,653 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 · Oct 12, 2026 · View company records in RevenueBase
11	Govcio	Exact match	Fairfax, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,223 contacts →
	Exact match “GovCIO was founded with a single purpose- to transform government IT.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Diyar United Company	Exact match	Kuwait City, KuwaitHQ recorded Oct 12, 2026	1,001-5,000	2,071 contacts →
	Exact match “Since its inception in 1980, Diyar United has been in the business of providing innovative Information Technology solutions, products and services in state of Kuwait.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	American Systems	Exact match	Mclean, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,982 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 · Oct 12, 2026 · View company records in RevenueBase
14	DCS Corp	Exact match	Alexandria, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,919 contacts →
	Exact match “DCS delivers advanced technology and management solutions to Government agencies in the national security sector.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Chenega Corporation	Exact match	Anchorage, AK, United StatesHQ recorded Oct 12, 2026	5,001-10,000	1,912 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 · Oct 12, 2026 · View company records in RevenueBase
16	SOSI	Exact match	Reston, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,842 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 · Oct 12, 2026 · View company records in RevenueBase
17	Perspecta	Exact match	Chantilly, VA, United StatesHQ recorded Oct 12, 2026	10001+	1,755 contacts →
	Exact match “At Perspecta we question, we seek and we solve.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	ASM Research	Exact match	Fairfax, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,668 contacts →
	Exact match “ASM Research, an Accenture Federal Services Company, is an information solutions integrator and a leading provider of innovative technology solutions and advanced analytical…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	DMI	Exact match	Mclean, VA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,595 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Site سايت	Exact match	Al Nakheel, Saudi ArabiaHQ recorded Oct 12, 2026	501-1,000	1,453 contacts →
	Exact match “We are established for enriching local content in designing, developing, and operating secure digital computing environments through Saudi talents, by fulfilling our role as a…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Government Acquisitions	Exact match	Cincinnati, OH, United StatesHQ recorded Oct 12, 2026	n/a	1,438 contacts →
	Exact match “Government Acquisitions, LLC (GAI) stands at the forefront of a transformative era, where artificial intelligence is reshaping our world and the stakes have never been higher.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Sangfor Technologies	Exact match	Shenzhen, ChinaHQ recorded Oct 12, 2026	5,001-10,000	1,377 contacts →
	Exact match “Sangfor Technologies is a global leader in cybersecurity, cloud computing, and IT infrastructure, providing fully integrated and AI-driven solutions.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	V Group INC	Exact match	Cranbury, NJ, United StatesHQ recorded Oct 12, 2026	n/a	1,373 contacts →
	Exact match “Since V Group Inc.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Trigyn Technologies	Exact match	Mumbai, IndiaHQ recorded Oct 12, 2026	1,001-5,000	1,303 contacts →
	Exact match “We're re-engineering the way business is done.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Tahaluf AL Emarat Technical Solutions تحالف الإمارات للحلول التقنية	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Oct 12, 2026	501-1,000	1,167 contacts →
	Exact match “Founded in Abu Dhabi in 2015, Tahaluf has quickly established itself as one of the nation's top cybersecurity and IT companies and the leading government solutions provider for…” Recorded in the RevenueBase company graph · Oct 12, 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 IT 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 7,264 federal IT contractors worldwide

See the full list, filter by size, metro and specialty, and access 63,498 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Federal IT contractors worldwide at a glance

As of Oct 12, 2026

20.6%Verified-email coverage

42.4Average contacts per company

11-50Median size (employees)

2.1%Largest-city concentration · Washington

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

2,915

11-50

2,521

51-200

1,268

201-500

321

501-1,000

108

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for federal IT contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “federal IT 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. 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 63,498 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 October 12, 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 IT contractors by location

46 lists · largest first

Every Federal IT contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 IT contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many federal IT contractors are there worldwide?

RevenueBase identified 7,264 company matches for federal IT contractors worldwide as of October 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 country has the most federal IT contractors?

The United States leads with 3,416 companies, followed by India (473) and Brazil (189). Every federal IT contractors list by country and city is linked on this page.

Which city has the most federal IT contractors?

Washington leads with 152 company records, followed by Reston (119) and Herndon (85).

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 63,498 professional contacts with verified work emails tracked across these 7,264 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 October 12, 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.