Company lists · Data refreshed September 2026

Top 25 Government software integrators based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 2,073 companies tracked

RevenueBase identified 2,073 company matches for government software integrators associated with the United States as of September 2026 and tracks 178,020 professional contacts across them, including 43,877 with verified work emails. Washington is the largest hub.

This list covers company matches for government software integrators associated with the United States, 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 28, 2026.

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 28, 2026 How this list was built

2,073Companies

178,020Contacts tracked

43,877Verified emails

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The 25 largest government software integrators based in the United States

Ranked by team size

Top 25 of 2,073 company matches for government software integrators based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	General Dynamics Information Technology	Exact match	Falls Church, VA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
2	Mantech	Exact match	Herndon, VA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	9,697 contacts →
	Exact match “MANTECH is more than a technology company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Accenture Federal Services	Exact match	Arlington, VA, United StatesHQ recorded Sep 28, 2026	10001+	9,125 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 · Sep 28, 2026 · View company records in RevenueBase
4	Tyler Technologies	Exact match	Plano, TX, United StatesHQ recorded Sep 28, 2026	5,001-10,000	6,842 contacts →
	Exact match “Tyler Technologies (NYSE: TYL) provides integrated software and technology services to the public sector.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Carahsoft	Exact match	Reston, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	3,945 contacts →
	Exact match “Carahsoft is The Trusted IT Solutions Provider®, supporting Federal, State, Local Government, Education, Healthcare and Private Sector industries.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	LMI	Exact match	Tysons, VA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7	Fast Enterprises, LLC	Exact match	Centennial, CO, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,363 contacts →
	Exact match “For 25+ years, we’ve transformed the way government agencies serve their communities, providing software that delivers superior customer experiences, greater flexibility, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Govcio	Exact match	Fairfax, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,101 contacts →
	Exact match “GovCIO was founded with a single purpose- to transform government IT.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	ASM Research	Exact match	Fairfax, VA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
10	Government Acquisitions	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
11	Engility Corporation	Exact match	Reston, VA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	1,245 contacts →
	Exact match “Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	22nd Century Technologies INC	Exact match	Mclean, VA, United StatesHQ recorded Sep 28, 2026	5,001-10,000	1,234 contacts →
	Exact match “22nd Century Technologies Inc,(22nd) is a mid-size Service Integrator, focused on providing IP enabled managed services and solutions to Federal, State and Local governments.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	PPC	Exact match	Trevose, PA, United StatesHQ recorded Sep 28, 2026	201-500	979 contacts →
	Exact match “PPC is now part of DSA” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	REI Systems	Exact match	Sterling, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	863 contacts →
	Exact match “REI Systems delivers reliable and innovative technology solutions that empower federal, state, local, and nonprofit organizations to achieve their missions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Cognosante	Exact match	Falls Church, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	829 contacts →
	Exact match “At Cognosante, we help create a safe, healthy, more equitable nation for all.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	I3 Verticals	Exact match	Nashville, TN, United StatesHQ recorded Sep 28, 2026	1,001-5,000	823 contacts →
	Exact match “i3 Verticals seamlessly delivers integrated software and services to customers in Public Sector markets.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Calibre Systems, INC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	768 contacts →
	Exact match “CALIBRE Systems, Inc.(CALIBRE) is an employee-owned AI transformation company delivering mission focused solutions to Defense, Federal / Civil, and Commercial clients.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Systems Engineering Services Corporation Sesc	Exact match	Reston, VA, United StatesHQ recorded Sep 28, 2026	201-500	747 contacts →
	Exact match “Systems Engineering Services Corporation (SESC), founded in 1989, is a leading provider of technology solutions to Fortune companies and government organizations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	STG INC	Exact match	Reston, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	700 contacts →
	Exact match “SOS International LLC (SOSi) is a family-owned, middle-market government services integrator that works principally in the defense and intelligence sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	TWO SIX Technologies	Exact match	Arlington, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	647 contacts →
	Exact match “At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Salient Crgt	Exact match	Fairfax, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	639 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Planned Systems International	Exact match	Columbia, MD, United StatesHQ recorded Sep 28, 2026	1,001-5,000	611 contacts →
	Exact match “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Tista Science And Technology Corporation	Exact match	Rockville, MD, United StatesHQ recorded Sep 28, 2026	1,001-5,000	543 contacts →
	Exact match “Since 2005, TISTA has been a trusted partner with innovative IT solutions for the federal government.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Actionet, INC	Exact match	Vienna, VA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	510 contacts →
	Exact match “ActioNet, Inc, headquartered in Vienna, Virginia, is a CMMI®-DEV Level 4, CMMI®-SVC Level 4, ISO ISO 27001, ISO 9001, HDI-certified, woman-owned IT Solutions Provider with strong…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Accela	Exact match	San Ramon, CA, United StatesHQ recorded Sep 28, 2026	201-500	490 contacts →
	Exact match “Accela provides a unified suite of cloud solutions trusted by governments across the globe to accelerate their digital transformation, deliver vital services, and build stronger…” Recorded in the RevenueBase company graph · Sep 28, 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 software integrators”. 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 2,073 government software integrators based in the United States

See the full list, filter by size, metro and specialty, and access 43,877 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Government software integrators based in the United States at a glance

As of Sep 28, 2026

24.6%Verified-email coverage

85.9Average contacts per company

11-50Median size (employees)

3.4%Largest-city concentration · Washington

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

655

11-50

733

51-200

468

201-500

135

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 2,073 companies.

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.
What qualifies: Company records associated with the United States whose business descriptions match “government software integrators” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 43,877 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 28, 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 software integrators by metro

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 software integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many government software integrators are there based in the United States?

RevenueBase identified 2,073 company matches for government software integrators associated with the United States 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?

General Dynamics Information Technology tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most government software integrators?

Washington leads with 71 company records, followed by Reston (64) and Herndon (62).

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 43,877 professional contacts with verified work emails tracked across these 2,073 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 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 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.