Company lists · Data refreshed September 2026

Top 25 Government IT services worldwide

Name: Government IT services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 14,774 companies tracked

RevenueBase identified 14,774 government IT services worldwide as of September 2026 and tracks 505,292 professional contacts across them, including 127,625 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers government IT services worldwide, 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 28, 2026. Country and city lists for government IT services follow the table.

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 28, 2026 86% judged on-target in blind review

14,774Companies

505,292Contacts tracked

127,625Verified emails

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The 25 largest government IT services worldwide

Ranked by team size

Top 25 of 14,774 government IT services worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to government IT services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Leidos	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	10001+	27,416 contacts →
	Partial evidence “Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations.” Source: RevenueBase Database · checked Sep 28, 2026
2	General Dynamics Information Technology	Indirect evidence	Falls Church, VA, United StatesHQ checked Sep 28, 2026	10001+	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 28, 2026
3	Guidehouse	Partial evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	10001+	12,815 contacts →
	Partial evidence “Guidehouse is a global AI-led professional services firm delivering advisory, technology, and managed services to the commercial and government sectors.” Source: RevenueBase Database · checked Sep 28, 2026
4	Mantech	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	9,697 contacts →
	Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 28, 2026
5	Accenture Federal Services	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	10001+	9,125 contacts →
	Partial evidence “We power reinvention across the US federal government to help agencies deliver greater outcomes using proven commercial solutions, mission expertise, and new technologies – cloud…” Source: RevenueBase Database · checked Sep 28, 2026
6	Public Services And Procurement Canada Services Publics ET Approvisionnement Canada	Indirect evidence	CanadaHQ checked Sep 28, 2026	10001+	8,202 contacts →
	Indirect evidence “We serve federal departments and agencies as their central purchasing agent, real property manager, treasurer, accountant, pay and pension administrator, integrity adviser and…” Source: RevenueBase Database · checked Sep 28, 2026
7	ELM Company	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 28, 2026	1,001-5,000	6,982 contacts →
	Indirect evidence “Elm is the leading provider of innovative secure services & solutions to both public and private sectors in Saudi Arabia.” Source: RevenueBase Database · checked Sep 28, 2026
8	Tyler Technologies	Indirect evidence	Plano, TX, United StatesHQ checked Sep 28, 2026	5,001-10,000	6,842 contacts →
	Indirect evidence “Tyler Technologies (NYSE: TYL) provides integrated software and technology services to the public sector.” Source: RevenueBase Database · checked Sep 28, 2026
9	Datacom	Indirect evidence	Auckland, New ZealandHQ checked Sep 28, 2026	5,001-10,000	5,958 contacts →
	Indirect evidence “Customer focused values.” Source: RevenueBase Database · checked Sep 28, 2026
10	Shared Services Canada Services Partagés Canada	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 28, 2026	5,001-10,000	4,650 contacts →
	Strong evidence “Shared Services Canada is modernizing how the Government of Canada manages its information technology (IT) infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
11	Cegeka	Indirect evidence	Hasselt, BelgiumHQ checked Sep 28, 2026	5,001-10,000	4,551 contacts →
	Indirect evidence “The digital world moves fast.” Source: RevenueBase Database · checked Sep 28, 2026
12	Asrc Federal	Indirect evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	4,542 contacts →
	Indirect evidence “ASRC Federal’s employees provide solutions for more than 30 U.S.” Source: RevenueBase Database · checked Sep 28, 2026
13	Carahsoft	Strong evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,945 contacts →
	Strong evidence “Carahsoft is The Trusted IT Solutions Provider®, supporting Federal, State, Local Government, Education, Healthcare and Private Sector industries.” Source: RevenueBase Database · checked Sep 28, 2026
14	Sita SOC LTD	Indirect evidence	South AfricaHQ checked Sep 28, 2026	1,001-5,000	3,212 contacts →
	Indirect evidence “SITA was established in to consolidate and coordinate the State’s information technology resources in order to achieve cost savings through scale, increase delivery capabilities…” Source: RevenueBase Database · checked Sep 28, 2026
15	Quest Software	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,206 contacts →
	Indirect evidence “At Quest Software, we help organizations build modern, trusted foundations for AI.” Source: RevenueBase Database · checked Sep 28, 2026
16	EJADA	Indirect evidence	Riyadh, Saudi ArabiaHQ checked Sep 28, 2026	1,001-5,000	3,050 contacts →
	Indirect evidence “ejada is a leading technology solutions provider in the Middle East and North Africa (MENA) region, headquartered in Saudi Arabia since 2005.” Source: RevenueBase Database · checked Sep 28, 2026
17	LMI	Indirect evidence	Tysons, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,580 contacts →
	Indirect evidence “LMI is a new breed of digital solutions provider, disrupting the traditional govcon model with commercial-grade technology that is ready day-one.” Source: RevenueBase Database · checked Sep 28, 2026
18	NIL LTD	Indirect evidence	Ljubljana, SloveniaHQ checked Sep 28, 2026	n/a	2,523 contacts →
	Indirect evidence “NIL is a globally recognized provider of advanced data center, network, cloud, cyber security solutions as well as services for business and industry environments, state…” Source: RevenueBase Database · checked Sep 28, 2026
19	Mitra Integrasi Informatika, PT	Indirect evidence	Jakarta, IndonesiaHQ checked Sep 28, 2026	1,001-5,000	2,517 contacts →
	Indirect evidence “Mitra Integrasi Informatika (“MII”), established in 1996 as a subsidiary of the publicly listed PT Metrodata Electronics, Tbk.” Source: RevenueBase Database · checked Sep 28, 2026
20	Govcio	Strong evidence	Fairfax, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,101 contacts →
	Strong evidence “GovCIO was founded with a single purpose- to transform government IT.” Source: RevenueBase Database · checked Sep 28, 2026
21	LPS	Partial evidence	Tai Kok Tsui Hong Kong, Hong KongHQ checked Sep 28, 2026	1,001-5,000	2,052 contacts →
	Partial evidence “Lenovo PCCW Solutions (LPS) is a leading IT and technology solutions provider in the Asia Pacific region.” Source: RevenueBase Database · checked Sep 28, 2026
22	Diyar United Company	Indirect evidence	Kuwait City, KuwaitHQ checked Sep 28, 2026	1,001-5,000	1,980 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
23	SOGEI	Indirect evidence	Rome, ItalyHQ checked Sep 28, 2026	1,001-5,000	1,775 contacts →
	Indirect evidence “Sogei is the Information and Communication Technology Company of the Ministry of the Economy and Finance.” Source: RevenueBase Database · checked Sep 28, 2026
24	Perspecta	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 28, 2026	10001+	1,753 contacts →
	Indirect evidence “At Perspecta we question, we seek and we solve.” Source: RevenueBase Database · checked Sep 28, 2026
25	DMI	Indirect evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,683 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 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: government IT services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names government IT services.
Partial evidence: Its own public description names part of government IT services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government IT services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 14,774 government IT services worldwide

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Government IT services worldwide at a glance

As of Sep 28, 2026

25.3%Verified-email coverage

34.2Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Washington

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

6,488

11-50

5,228

51-200

2,037

201-500

551

501-1,000

213

1,001-5,000

154

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 IT services, 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.
Coverage: Every country. Country and city lists for government IT services are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “government IT services”. 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 IT services), 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 IT services, and records with no verified work email.
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, 127,625 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 28, 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.

Government IT services by location

95 lists · largest first

Every Government IT services 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 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 IT services, 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 IT services are there worldwide?

RevenueBase identified 14,774 government IT services worldwide 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?

Leidos, headquartered in Reston, tops this list with the largest team on record.

Which country has the most government IT services?

The United States leads with 4,557 companies, followed by India (1,324) and Brazil (644). Every government IT services list by country and city is linked on this page.

Which city has the most government IT services?

Washington leads with 157 headquartered companies, followed by Dubai (149) and Reston (118).

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 127,625 verified decision-maker contacts tracked across these 14,774 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 28, 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.