Company lists · Data refreshed September 2026
Top 25 Government technology vendors worldwide
RevenueBase identified 2,635 government technology vendors worldwide as of September 2026 and tracks 73,706 professional contacts across them, including 23,424 with verified work emails. The United States is the largest market and Tehran the largest hub.
This list covers government technology vendors 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 20, 2026. Country and city lists for government technology vendors 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.
The 25 largest government technology vendors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,697 contacts → | ||||
Partial evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,842 contacts → | ||||
Partial evidence “Tyler Technologies (NYSE: TYL) provides integrated software and technology services to the public sector.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,945 contacts → | ||||
Partial evidence “Carahsoft is The Trusted IT Solutions Provider®, supporting Federal, State, Local Government, Education, Healthcare and Private Sector industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,853 contacts → | ||||
Indirect evidence “We’re Civica and we make software that helps deliver critical services for citizens all around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,109 contacts → | ||||
Indirect evidence “Contour Software is a wholly owned subsidiary of Constellation Software CSI acquires, manages, and builds market-leading vertical market software (“VMS”) businesses that develop…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,980 contacts → | ||||
Partial 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 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,495 contacts → | ||||
Strong evidence “General Dynamics Information Technology and CSRA have united to create the premier provider of high-tech IT solutions to the government IT market.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,046 contacts → | ||||
Indirect evidence “PCM is a division of Insight | Together, we’ll help you navigate complex IT challenges.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 985 contacts → | ||||
Indirect evidence “Atuante no mercado de Tecnologia desde o ano de 1991, com certificação ISO 9001 para prestação de serviços de TI e fabricação de computadores, a IlhaService é uma empresa…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 907 contacts → | ||||
Strong evidence “CivicPlus is the only government technology company exclusively committed to powering and empowering governments to efficiently operate, serve, and govern through the use of our…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 863 contacts → | ||||
Partial evidence “REI Systems delivers reliable and innovative technology solutions that empower federal, state, local, and nonprofit organizations to achieve their missions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 747 contacts → | ||||
Strong evidence “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 746 contacts → | ||||
Partial evidence “EUROPEAN DYNAMICS is a leading Information Technologies service provider and software developer in the field of eGovernment, operating internationally as a group of companies…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 669 contacts → | ||||
Indirect evidence “ITOCHU Techno-Solutions Corporation: Sales, maintenance and support of computers and network systems; commissioned software development; information processing services…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 641 contacts → | ||||
Indirect evidence “ADS provides innovative and cost-effective solutions for our customers’ equipment, procurement, and logistics challenges.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 639 contacts → | ||||
Indirect evidence “For over 20 years, Salient CRGT has upheld its mission to "empower our diverse, hard-working team to deliver high-value solutions that make positive impacts on missions and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 599 contacts → | ||||
Indirect evidence “A IBROWSE é uma empresa de Tecnologia especializada em desenvolvimento de softwares, plataformas e prestação de serviços de tecnologia para o setor público e para o setor privado.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 531 contacts → | ||||
Indirect evidence “Asseco Data Systems provide products, services and IT solutions based on proprietary and third-party software as well as on the information and communications services and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 483 contacts → | ||||
Partial evidence “The Hewlett-Packard Company, commonly shortened to Hewlett-Packard or HP, was an American multinational information technology company headquartered in Palo Alto, California.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 383 contacts → | ||||
Strong evidence “CITEC is the primary technology service provider for the Queensland Government delivering both whole-of-government and agency specific ICT services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 373 contacts → | ||||
Partial evidence “Arrow ECS is a technology enablement company that brings innovative IT solutions to market to solve complex business challenges.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 324 contacts → | ||||
Indirect evidence “JOBSEEKERS: Our Recruiters only ever reach out from BusinessIntegra.com or PeopleIntegra.com email addresses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 324 contacts → | ||||
Indirect evidence “For over three decades, we have been connecting innovations, supporting transformations, and the success of companies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 300 contacts → | ||||
Partial evidence “OKsystem is a Czech company operating on the information technology market since 1990.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 297 contacts → | ||||
Partial evidence “Delivering transformative technology solutions for the public sector and across the Department of Defense, TIAG drives modernization through synergistic processes and unique…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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 technology vendors. 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 technology vendors.
- Partial evidence
- Its own public description names part of government technology vendors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name government technology vendors. 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 2,635 government technology vendors worldwide
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Government technology vendors worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 technology vendors, 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 technology vendors are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “government technology vendors”. 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 technology vendors), 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 technology vendors, 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, 23,424 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 20, 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 technology vendors by location
39 lists · largest firstEvery Government technology vendors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Government technology vendors based in the United States566
- Government technology vendors based in India203
- Government technology vendors based in Brazil193
- Government technology vendors based in Italy109
- Government technology vendors based in Indonesia94
- Government technology vendors based in Türkiye81
- Government technology vendors based in Pakistan67
- Government technology vendors based in the United Kingdom66
- Government technology vendors based in Nigeria62
- Government technology vendors based in Mexico52
- Government technology vendors based in South Africa43
- Government technology vendors based in Saudi Arabia41
- Government technology vendors based in Chile37
- Government technology vendors based in Portugal37
- Government technology vendors based in the United Arab Emirates37
- Government technology vendors based in Egypt36
- Government technology vendors based in Australia35
- Government technology vendors based in Canada34
- Government technology vendors based in Argentina33
- Government technology vendors based in Spain33
- Government technology vendors based in the Philippines32
- Government technology vendors based in Malaysia28
- Government technology vendors based in Colombia27
- Government technology vendors based in France27
- Government technology vendors based in Germany27
- Government technology vendors based in Greece27
Cities
- Government technology vendors based in Fairfax, United States55
- Government technology vendors based in Mclean, United States47
- Government technology vendors based in Alexandria, United States45
- Government technology vendors based in Chantilly, United States44
- Government technology vendors based in Vienna, United States44
- Government technology vendors based in Arlington, United States43
- Government technology vendors based in Hyderabad, India34
- Government technology vendors based in Reston, United States34
- Government technology vendors based in Pune, India31
- Government technology vendors based in Herndon, United States30
- Government technology vendors based in Washington, United States30
- Government technology vendors based in Rockville, United States29
- Government technology vendors based in Huntsville, United States27
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 technology vendors, 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 technology vendors are there worldwide?
RevenueBase identified 2,635 government technology vendors 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?
Mantech, headquartered in Herndon, tops this list with the largest team on record.
Which country has the most government technology vendors?
The United States leads with 566 companies, followed by India (203) and Brazil (193). Every government technology vendors list by country and city is linked on this page.
Which city has the most government technology vendors?
Tehran leads with 22 headquartered companies, followed by Istanbul (21) and Sao Paulo (21).
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 23,424 verified decision-maker contacts tracked across these 2,635 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 20, 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.