Company lists · Data refreshed November 2026

Top 25 Federal IT contractors worldwide

RevenueBase identified 35,411 company matches for federal IT contractors worldwide as of November 2026 and tracks 1,292,912 professional contacts across them, including 310,035 with verified work emails. The United States is the largest market and Dubai 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 November 6, 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 Nov 6, 2026 How this list was built
35,411Companies
1,292,912Contacts tracked
310,035Verified emails
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The 25 largest federal IT contractors worldwide

Ranked by team size
Top 25 of 35,411 company matches for federal IT contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAshburn, VA, United StatesHQ recorded Nov 6, 202610001+86,844 contacts →

Exact match

“DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202610001+47,955 contacts →

Exact match

“We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchTokyo, JapanHQ recorded Nov 6, 202610001+42,145 contacts →

Exact match

“NTT DATA – a part of NTT Group – IT and business services headquartered in Tokyo.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchReston, VA, United StatesHQ recorded Nov 6, 202610001+34,914 contacts →

Exact match

“SAIC® is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchFlorham Park, United StatesHQ recorded Nov 6, 202610001+33,442 contacts →

Exact match

“Conduent is a global technology-enabled operating partner that helps businesses and governments simplify complexity, modernize mission-critical operations and deliver measurable…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchReston, VA, United StatesHQ recorded Nov 6, 202610001+29,226 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchFalls Church, VA, United StatesHQ recorded Nov 6, 202610001+25,406 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 · Nov 6, 2026 · View company records in RevenueBase
8Exact matchReston, VA, United StatesHQ recorded Nov 6, 202610001+20,334 contacts →

Exact match

“CACI International Inc (NYSE: CACI) is a technology-first national security company that expands the limits of national security through innovation, discipline, and operational…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchVernon Hills, IL, United StatesHQ recorded Nov 6, 202610001+13,669 contacts →

Exact match

“At CDW, we know how to make technology work so people can do great things.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMclean, IL, United StatesHQ recorded Nov 6, 202610001+13,603 contacts →

Exact match

“Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGlen Allen, United StatesHQ recorded Nov 6, 20261,001-5,00012,788 contacts →

Exact match

“Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchReston, MD, United StatesHQ recorded Nov 6, 202610001+11,210 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHerndon, VA, United StatesHQ recorded Nov 6, 20265,001-10,00010,193 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchArlington, MO, United StatesHQ recorded Nov 6, 202610001+9,827 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLahore, PakistanHQ recorded Nov 6, 20265,001-10,0008,539 contacts →

Exact match

“Systems Limited is a globally recognized IT software solution company offering state-of-the-art professional services and BPO offerings in the technology landscape.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRiyadh, Saudi ArabiaHQ recorded Nov 6, 20261,001-5,0007,577 contacts →

Exact match

“Elm is the leading provider of innovative secure services & solutions to both public and private sectors in Saudi Arabia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPlano, IL, United StatesHQ recorded Nov 6, 20265,001-10,0007,246 contacts →

Exact match

“Tyler Technologies (NYSE: TYL) provides integrated software and technology services to the public sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSomerset, United StatesHQ recorded Nov 6, 20265,001-10,0007,151 contacts →

Exact match

“Think of SHI as your personal technology concierge.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAuckland, New ZealandHQ recorded Nov 6, 20265,001-10,0006,268 contacts →

Exact match

“Datacom is a technology partner and solutions provider combining deep local expertise with global capability, working across data, cloud, cyber security, digital engineering and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBirmingham, FranceHQ recorded Nov 6, 20265,001-10,0005,859 contacts →

Exact match

“SCC unleashes the potential of IT for global businesses, as one of Europe’s largest independent IT groups.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchNew Delhi, IndiaHQ recorded Nov 6, 20261,001-5,0004,945 contacts →

Exact match

“Our story began in 1987, when our founder, Ranjan Chopra, an alumnus of IIT Kanpur, set out to bridge the gap between business needs and IT solutions in India.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHasselt, BelgiumHQ recorded Nov 6, 20265,001-10,0004,771 contacts →

Exact match

“The digital world moves fast.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchReston, VA, United StatesHQ recorded Nov 6, 20265,001-10,0004,665 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 20265,001-10,0004,650 contacts →

Exact match

“Shared Services Canada is modernizing how the Government of Canada manages its information technology (IT) infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBangalore, IndiaHQ recorded Nov 6, 20265,001-10,0004,449 contacts →

Exact match

“CMS IT is a leading India-focused, tier-1 preferred IT provider with a legacy of four decades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 35,411 federal IT contractors worldwide

See the full list, filter by size, metro and specialty, and access 310,035 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 Nov 6, 2026
24.0%Verified-email coverage
36.5Average contacts per company
11-50Median size (employees)
1.1%Largest-city concentration · Dubai
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
14,792
11-50
13,204
51-200
5,013
201-500
1,299
501-1,000
401
1,001-5,000
320
5,001-10,000
53
10001+
75

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 310,035 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 November 6, 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

234 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 35,411 company matches for federal IT contractors worldwide as of November 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?

DXC Technology 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 9,408 companies, followed by India (3,824) and Brazil (1,727). Every federal IT contractors list by country and city is linked on this page.

Which city has the most federal IT contractors?

Dubai leads with 393 company records, followed by Bangalore (390) and Sao Paulo (354).

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 310,035 professional contacts with verified work emails tracked across these 35,411 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 November 6, 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.