Company lists · Data refreshed September 2026
Top 25 Federal government software companies based in Washington, United States
RevenueBase identified 60 federal government software companies headquartered in Washington, United States as of September 2026 and tracks 1,471 professional contacts across them, including 523 with verified work emails. Across the United States, Reston is the largest hub for this category (74 companies); Washington follows with 60.
This list covers federal government software companies headquartered in Washington, 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 28, 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.
The 25 largest federal government software companies based in Washington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 314 contacts → | ||||
Indirect evidence “With over 30 years of hands-on experience, Computer World Services Corp.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 169 contacts → | ||||
Indirect evidence “Obsidian is an advanced technology company, designing enterprise solutions for our clients’ critical mission and business needs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 115 contacts → | ||||
Partial evidence “CGH Technologies Inc, delivers information engineering solutions and management support services to United States and international government and private sector organizations.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 101 contacts → | ||||
Partial evidence “Expression is a leading provider of tailored and integrated information technology, software engineering, data analytics, and electromagnetic spectrum management solutions for…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 86 contacts → | ||||
Partial evidence “Amida Technology Solutions, Inc.(Amida) is a software services company that solves the most complex challenges in data interoperability, data exchange, data governance, and data…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 79 contacts → | ||||
Indirect evidence “You need more than a contractor.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 77 contacts → | ||||
Strong evidence “Akira Technologies is a data and cloud technology company committed to solving the Federal Government’s most complex challenges and helping agencies unlock sustainable value.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 66 contacts → | ||||
Indirect evidence “FWG Solutions is an award-winning firm certified by the SBA as an 8(a) that was founded in 2012.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 47 contacts → | ||||
Partial evidence “teKnoluxion provides specialized software & systems engineering, architecture, cloud services, IT advisory, and data analytics/visualization solutions to the DoD and IC.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 39 contacts → | ||||
Indirect evidence “Avid Systems LLC is a woman-owned Information Technology Services firm based in Washington, DC, with over 20 years of proven expertise in delivering transformative IT solutions.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 31 contacts → | ||||
Strong evidence “Verium is a privately-owned firm offering professional IT services and solutions to federal, state and local government clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 28 contacts → | ||||
Partial evidence “Sphinx builds software to solve complex national security problems for America and its allies.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 28 contacts → | ||||
Partial evidence “Rebellion Defense is a technology company developing advanced software to ensure mission-critical organizations stay ahead of emerging threats.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 27 contacts → | ||||
Partial evidence “Established in 2001, Prime Source Technologies delivers solutions to client problems and enhance productivity by offering emergency management, network engineering and software…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 contacts → | ||||
Indirect evidence “iP-PLUS CONSULTING is an IT solutions company that focuses on providing high quality professionals, innovative technical solutions, and delivering exceptional service support to…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 22 contacts → | ||||
Indirect evidence “Wolverine is an innovative and nimble company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 20 contacts → | ||||
Indirect evidence “JRH Consultants is an Information Technology company that provides cost effective services and solutions in Operations Management, Cyber Security Services, Cloud Integration and…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 16 contacts → | ||||
Partial evidence “The Efiia Group delivers cybersecurity solutions for Government.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 contacts → | ||||
Partial evidence “BluestoneLogic is a pioneer in “integrated systems assessment”: leveraging government and industry market analysis and systems engineering expertise to provide immediate solutions…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 contacts → | ||||
Indirect evidence “We are Square Peg Technologies, where unconventional thinking meets rock-solid execution.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 14 contacts → | ||||
Strong evidence “CSZNet provides IT Solutions & Services for Federal & State Government and Private Sectors.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 contacts → | ||||
Partial evidence “Our CEO, whom was a government official within Department of Homeland Security (DHS) built Goldman Edwards on the foundation of security, innovation and service to our homeland.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Partial evidence “At LGNDX, we see a future where software quality isn’t just a nicety-it’s a critical component of mission-driven initiatives.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Partial evidence “STEM Solutions is a mission-focused technical services provider supporting the Department of Defense, Intelligence Community, and federal integrators with cleared expertise in…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Indirect evidence “DYNAMIC, ADAPTIVE inventium.io understand the only constants are mission dynamic change and critical priorities shift.” Source: RevenueBase Database · checked Sep 28, 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: federal government software companies. 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 federal government software companies.
- Partial evidence
- Its own public description names part of federal government software companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name federal government software companies. 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 60 federal government software companies based in Washington, United States
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Federal government software companies based in Washington, United States at a glance
As of Sep 28, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 60 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 federal government software companies, 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 Washington, United States whose own description of what they do matches “federal government software companies”. 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 federal government software companies), 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 federal government software companies, and records with no verified work email. Companies headquartered outside Washington 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, 523 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.
Federal government software companies by metro in the United States
- Federal government software companies in Reston74
- Federal government software companies in Herndon53
- Federal government software companies in Arlington45
- Federal government software companies in Mclean45
- Federal government software companies in Columbia43
- Federal government software companies in Chantilly41
- Federal government software companies in Fairfax41
- Federal government software companies in Vienna41
- Federal government software companies in Leesburg31
- Federal government software companies in Alexandria29
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 federal government software companies, 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 federal government software companies are there based in Washington, United States?
RevenueBase identified 60 federal government software companies headquartered in Washington, 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?
Computer World Services Corp. CWS, headquartered in Washington, tops this list with the largest team on record.
Which city in the United States has the most federal government software companies?
Reston leads the United States with 74 headquartered companies, followed by Washington (60) and Herndon (53).
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 523 verified decision-maker contacts tracked across these 60 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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Federal government software companies by geography
- Federal government software companies based in Alexandria, United States
- Federal government software companies based in Arlington, United States
- Federal government software companies based in Chantilly, United States
- Federal government software companies based in Columbia, United States
- Federal government software companies based in Fairfax, United States
- Federal government software companies based in Herndon, United States
- Federal government software companies based in Leesburg, United States
- Federal government software companies based in Mclean, United States
- Federal government software companies based in Reston, United States
- Federal government software companies based in Vienna, United States
- Federal government software companies based in Australia
- Federal government software companies based in Brazil
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.
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