Company lists · Data refreshed September 2026

Top 25 Government technology vendors based in the United States

Name: Government technology vendors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 566 companies tracked

RevenueBase identified 566 government technology vendors headquartered in the United States as of September 2026 and tracks 40,030 professional contacts across them, including 16,104 with verified work emails. Washington is the largest hub.

This list covers government technology vendors headquartered in the United States, 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.

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 20, 2026 86% judged on-target in blind review

566Companies

40,030Contacts tracked

16,104Verified emails

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The 25 largest government technology vendors based in the United States

Ranked by team size

Top 25 of 566 government technology vendors based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to government technology vendors: 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	Mantech	Partial evidence	Herndon, VA, United StatesHQ checked Sep 20, 2026	5,001-10,000	9,697 contacts →
	Partial evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 20, 2026
2	Tyler Technologies	Partial evidence	Plano, TX, United StatesHQ checked Sep 20, 2026	5,001-10,000	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, 2026
3	Carahsoft	Partial evidence	Reston, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	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, 2026
4	Csra INC	Strong evidence	Falls Church, VA, United StatesHQ checked Sep 20, 2026	10001+	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, 2026
5	PCM The Right Technology, Delivered	Indirect evidence	El Segundo, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	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, 2026
6	Civicplus	Strong evidence	Manhattan, KS, United StatesHQ checked Sep 20, 2026	501-1,000	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, 2026
7	REI Systems	Partial evidence	Sterling, VA, United StatesHQ checked Sep 20, 2026	501-1,000	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, 2026
8	Systems Engineering Services Corporation Sesc	Strong evidence	Reston, VA, United StatesHQ checked Sep 20, 2026	201-500	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, 2026
9	Ads, INC	Indirect evidence	Virginia Beach, VA, United StatesHQ checked Sep 20, 2026	201-500	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, 2026
10	Salient Crgt	Indirect evidence	Fairfax, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	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, 2026
11	Hewlett Packard	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 20, 2026	5,001-10,000	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, 2026
12	Business Integra INC	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 20, 2026	501-1,000	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, 2026
13	TIAG	Partial evidence	Reston, VA, United StatesHQ checked Sep 20, 2026	201-500	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, 2026
14	TD Synnex Public Sector	Partial evidence	Herndon, VA, United StatesHQ checked Sep 20, 2026	201-500	292 contacts →
	Partial evidence “For more than 30 years, TD SYNNEX Public Sector has been dedicated to accelerating public sector growth for technology companies.” Source: RevenueBase Database · checked Sep 20, 2026
15	Physical Sciences INC	Strong evidence	Andover, MA, United StatesHQ checked Sep 20, 2026	201-500	291 contacts →
	Strong evidence “For over 50 years, PSI has provided technology solutions and innovative products to our government and commercial customers.” Source: RevenueBase Database · checked Sep 20, 2026
16	Sungard Public Sector	Indirect evidence	Lake Mary, FL, United StatesHQ checked Sep 20, 2026	501-1,000	281 contacts →
	Indirect evidence “SunGard Public Sector is now Superion.” Source: RevenueBase Database · checked Sep 20, 2026
17	Unicom Government INC	Strong evidence	Chantilly, VA, United StatesHQ checked Sep 20, 2026	201-500	279 contacts →
	Strong evidence “UNICOM Government, A Division of UNICOM Global, is a leading provider of technology solutions to federal, state, and local governments.” Source: RevenueBase Database · checked Sep 20, 2026
18	Trafera	Indirect evidence	Arden Hills, MN, United StatesHQ checked Sep 20, 2026	201-500	223 contacts →
	Indirect evidence “HARDWARE, SOFTWARE, SERVICES, AND SUPPORT \| Simpler and smarter solutions that work for your mission, your people, and your future-backed by real partners, ready to help.” Source: RevenueBase Database · checked Sep 20, 2026
19	CIVIX	Strong evidence	Metairie, LA, United StatesHQ checked Sep 20, 2026	201-500	211 contacts →
	Strong evidence “Civix is a leading provider of government technology solutions, specializing in business services, elections, ethics, and grants management software.” Source: RevenueBase Database · checked Sep 20, 2026
20	Integrityone Partners	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 20, 2026	n/a	205 contacts →
	Partial evidence “INTEGRITYOne Partners is a business and technology services company delivering mission-critical results to leaders working on our nation’s top priorities.” Source: RevenueBase Database · checked Sep 20, 2026
21	Future Technologies INC	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 20, 2026	201-500	197 contacts →
	Partial evidence “FTI is dedicated to empowering customers with mission-critical technology solutions, helping solve their most complex challenges.” Source: RevenueBase Database · checked Sep 20, 2026
22	Sabel Systems Technology Solutions, LLC	Indirect evidence	Beavercreek, OH, United StatesHQ checked Sep 20, 2026	51-200	179 contacts →
	Indirect evidence “SABEL SYSTEMS: Founded in 2001, we provide innovative solutions to organizational challenges and needs.” Source: RevenueBase Database · checked Sep 20, 2026
23	Pcm-G	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 20, 2026	1,001-5,000	176 contacts →
	Indirect evidence “PCM-G is a division of Insight Enterprises, Inc.\| Together, we’ll help you navigate complex IT challenges.” Source: RevenueBase Database · checked Sep 20, 2026
24	Integrated Data Services	Partial evidence	United StatesHQ checked Sep 20, 2026	201-500	175 contacts →
	Partial evidence “Integrated Data Services (IDS) is a leading provider of custom software products and Government financial management services.” Source: RevenueBase Database · checked Sep 20, 2026
25	Unified Business Technologies UBT , INC	Partial evidence	Troy, MI, United StatesHQ checked Sep 20, 2026	201-500	173 contacts →
	Partial evidence “Unified Business Technologies, Inc.(UBT) is an award-winning, woman and minority owned small business headquartered in Troy, Michigan.” Source: RevenueBase Database · checked Sep 20, 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 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 566 government technology vendors based in the United States

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Government technology vendors based in the United States at a glance

As of Sep 20, 2026

40.2%Verified-email coverage

70.7Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Washington

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

225

11-50

201

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 566 companies.

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.
What qualifies: Companies headquartered in the United States 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. Companies headquartered outside United States are excluded even when they keep an office there.
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, 16,104 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.

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 based in the United States?

RevenueBase identified 566 government technology vendors headquartered in the United States 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 city has the most government technology vendors?

Washington leads with 15 headquartered companies, followed by Herndon (13) and Chantilly (10).

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 16,104 verified decision-maker contacts tracked across these 566 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.