Company lists · Data refreshed September 2026

Top 25 Government IT consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 29,744 companies tracked

RevenueBase identified 29,744 company matches for government IT consulting firms worldwide as of September 2026 and tracks 572,528 professional contacts across them, including 146,446 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for government IT consulting firms 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 September 21, 2026. Country and city lists for government IT consulting firms 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 Sep 21, 2026 How this list was built

29,744Companies

572,528Contacts tracked

146,446Verified emails

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The 25 largest government IT consulting firms worldwide

Ranked by team size

Top 25 of 29,744 company matches for government IT consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 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 21, 2026 · View company records in RevenueBase
2	General Dynamics Information Technology	Exact match	Falls Church, VA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3	Guidehouse	Exact match	Mclean, VA, United StatesHQ recorded Sep 21, 2026	10001+	12,815 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 · Sep 21, 2026 · View company records in RevenueBase
4	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Sep 21, 2026	5,001-10,000	9,697 contacts →
	Exact match “MANTECH is more than a technology company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	ELM Company	Exact match	Riyadh, Saudi ArabiaHQ recorded Sep 21, 2026	1,001-5,000	6,982 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 · Sep 21, 2026 · View company records in RevenueBase
6	SHI International Corp	Exact match	Somerset, NJ, United StatesHQ recorded Sep 21, 2026	5,001-10,000	6,734 contacts →
	Exact match “Think of SHI as your personal technology concierge.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Datacom	Exact match	Auckland, New ZealandHQ recorded Sep 21, 2026	5,001-10,000	5,958 contacts →
	Exact match “Customer focused values.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Amaris Consulting	Exact match	Chêne-bourg, SwitzerlandHQ recorded Sep 21, 2026	5,001-10,000	4,824 contacts →
	Exact match “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Cegeka	Exact match	Hasselt, BelgiumHQ recorded Sep 21, 2026	5,001-10,000	4,551 contacts →
	Exact match “The digital world moves fast.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Asrc Federal	Exact match	Reston, VA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
11	Quest Software	Exact match	Austin, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	3,206 contacts →
	Exact match “At Quest Software, we help organizations build modern, trusted foundations for AI.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	EJADA	Exact match	Riyadh, Saudi ArabiaHQ recorded Sep 21, 2026	1,001-5,000	3,050 contacts →
	Exact match “ejada is a leading technology solutions provider in the Middle East and North Africa (MENA) region, headquartered in Saudi Arabia since 2005.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	LMI	Exact match	Tysons, VA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
14	Mitra Integrasi Informatika, PT	Exact match	Jakarta, IndonesiaHQ recorded Sep 21, 2026	1,001-5,000	2,517 contacts →
	Exact match “Mitra Integrasi Informatika (“MII”), established in 1996 as a subsidiary of the publicly listed PT Metrodata Electronics, Tbk.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	OPTIV	Exact match	Leawood, KS, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,222 contacts →
	Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	GFI World	Exact match	Saint-ouen, FranceHQ recorded Sep 21, 2026	10001+	2,169 contacts →
	Exact match “Gfi became Inetum in 2020.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Diyar United Company	Exact match	Kuwait City, KuwaitHQ recorded Sep 21, 2026	1,001-5,000	1,980 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 · Sep 21, 2026 · View company records in RevenueBase
18	Perspecta	Exact match	Chantilly, VA, United StatesHQ recorded Sep 21, 2026	10001+	1,753 contacts →
	Exact match “At Perspecta we question, we seek and we solve.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	DMI	Exact match	Mclean, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,683 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 · Sep 21, 2026 · View company records in RevenueBase
20	ASM Research	Exact match	Fairfax, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,568 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 · Sep 21, 2026 · View company records in RevenueBase
21	Saudi Business Machines - SBM	Exact match	Jeddah, Saudi ArabiaHQ recorded Sep 21, 2026	1,001-5,000	1,490 contacts →
	Exact match “Saudi Business Machines Ltd.(SBM) is the General Marketing and Services Representative of IBM in Saudi Arabia and the Kingdom’s leading provider of end-to-end enterprise…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Nava Tech For Business	Exact match	Barueri, BrazilHQ recorded Sep 21, 2026	1,001-5,000	1,452 contacts →
	Exact match “Atuamos no core de empresas líderes em seus segmentos, onde tecnologia, estratégia e operação se encontram.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Government Acquisitions	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 21, 2026	n/a	1,440 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 · Sep 21, 2026 · View company records in RevenueBase
24	LEVIO	Exact match	Québec, QC, CanadaHQ recorded Sep 21, 2026	1,001-5,000	1,403 contacts →
	Exact match “Levio is a leading North American technology‑focused consulting firm and one of the two largest system integrators fully owned by Canadian interests, specializing in digital…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Site سايت	Exact match	Al Nakheel, Saudi ArabiaHQ recorded Sep 21, 2026	501-1,000	1,378 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 · Sep 21, 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 “government IT consulting firms”. 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 29,744 government IT consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 146,446 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Government IT consulting firms worldwide at a glance

As of Sep 21, 2026

25.6%Verified-email coverage

19.2Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

15,810

11-50

9,482

51-200

3,185

201-500

757

501-1,000

219

1,001-5,000

155

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 government IT consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “government IT consulting firms” 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 146,446 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 21, 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.

Government IT consulting firms by location

156 lists · largest first

Every Government IT consulting firms 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 “government IT consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many government IT consulting firms are there worldwide?

RevenueBase identified 29,744 company matches for government IT consulting firms worldwide 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 country has the most government IT consulting firms?

The United States leads with 9,349 companies, followed by India (2,202) and the United Kingdom (1,015). Every government IT consulting firms list by country and city is linked on this page.

Which city has the most government IT consulting firms?

London leads with 360 company records, followed by Washington (359) and Paris (247).

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 146,446 professional contacts with verified work emails tracked across these 29,744 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 21, 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.