Company lists · Data refreshed September 2026

Top 25 Government contractors based in Washington, United States

Name: Government contractors based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 116 companies tracked

RevenueBase identified 116 government contractors headquartered in Washington, United States as of September 2026 and tracks 3,338 professional contacts across them, including 806 with verified work emails. Washington is the largest hub.

This list covers government contractors 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 16, 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 16, 2026 86% judged on-target in blind review

116Companies

3,338Contacts tracked

806Verified emails

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The 25 largest government contractors based in Washington, United States

Ranked by team size

Top 25 of 116 government contractors based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to government contractors: 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	Computer World Services Corp. CWS	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	201-500	314 contacts →
	Indirect evidence “With over 30 years of hands-on experience, Computer World Services Corp.” Source: RevenueBase Database · checked Sep 16, 2026
2	Sayres Defense	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	201-500	221 contacts →
	Partial evidence “Sayres Defense has been providing excellence in service to the federal government since 2001.” Source: RevenueBase Database · checked Sep 16, 2026
3	The Columbia Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	501-1,000	147 contacts →
	Partial evidence “The Columbia Group is a premier federal services support company with a successful history of providing the United States government with program management, acquisition…” Source: RevenueBase Database · checked Sep 16, 2026
4	CGS Federal Contact Government Services	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	141 contacts →
	Partial evidence “Contact Government Services strives to simplify and enhance government bureaucracy through the optimization of human, technical, and financial resources.” Source: RevenueBase Database · checked Sep 16, 2026
5	Synchron, LLC	Strong evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	139 contacts →
	Strong evidence “SYNCHRON provides technical support services to the Department of Defense, Government Contractors, and select partners.” Source: RevenueBase Database · checked Sep 16, 2026
6	DHA Group, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	201-500	135 contacts →
	Partial evidence “DHA is a full-service Information Technology and Consulting firm dedicated to providing mission-critical services to our Federal Government and commercial clients.” Source: RevenueBase Database · checked Sep 16, 2026
7	Venesco, LLC	Strong evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	201-500	120 contacts →
	Strong evidence “Venesco, LLC is a premier government contractor delivering Healthcare, IT, Research & Development, and a range of mission‑critical services to federal agencies.” Source: RevenueBase Database · checked Sep 16, 2026
8	CGH Technologies, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	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 16, 2026
9	BCS LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	201-500	111 contacts →
	Partial evidence “BCS Allegient is a small business with a 30-year history of helping government, research, and private sector clients implement their programs and missions and achieve success.” Source: RevenueBase Database · checked Sep 16, 2026
10	Networking For Future NFF	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	108 contacts →
	Partial evidence “Since 1996, Networking For Future, Inc.(NFF) has been engineering the backbone of mission-critical systems for government and enterprise clients.” Source: RevenueBase Database · checked Sep 16, 2026
11	Martek Global	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	105 contacts →
	Indirect evidence “From breaking ground to gaining ground, Martek works with organizations to help them move, grow, and excel by becoming your organization's right hand assistant.” Source: RevenueBase Database · checked Sep 16, 2026
12	Veracity Engineering	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	80 contacts →
	Indirect evidence “Since 2001, Veracity Engineering has been successful in building, growing, and performing on a portfolio of technically challenging engineering and program management engagements…” Source: RevenueBase Database · checked Sep 16, 2026
13	Tsymmetry	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	79 contacts →
	Partial evidence “You need more than a contractor.” Source: RevenueBase Database · checked Sep 16, 2026
14	Patrona Corporation	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	69 contacts →
	Partial evidence “Patrona Corporation is a DoD federal contractor providing program management, engineering, strategic and operational planning, quality assurance, financial management, and…” Source: RevenueBase Database · checked Sep 16, 2026
15	FWG Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	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 16, 2026
16	Federal Management System, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	62 contacts →
	Indirect evidence “For over two decades, Federal Management Systems, Inc.(FMS) has provided high quality, mission focused Accounting and Financial Management, Debt and Asset Management, Facilities…” Source: RevenueBase Database · checked Sep 16, 2026
17	B360 Bizsolutions 360 INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	201-500	58 contacts →
	Indirect evidence “BizSolutions 360 Inc.” Source: RevenueBase Database · checked Sep 16, 2026
18	Parker Tide LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	58 contacts →
	Indirect evidence “For over 20 years, Parker Tide has provided human resources support, personnel security, strategic solutions, and staff augmentation, nationwide to Federal customers.” Source: RevenueBase Database · checked Sep 16, 2026
19	Intepros Federal	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	51 contacts →
	Indirect evidence “IntePros Federal is a Service-Disabled Veteran-Owned Small Business (SDVOSB) founded in 2009 with the goal of providing IT services to multiple agencies/departments of the federal…” Source: RevenueBase Database · checked Sep 16, 2026
20	Banner Staffing	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	n/a	49 contacts →
	Indirect evidence “Banner Staffing LLC is a high-quality provider of Professional, Management and Administrative support services.” Source: RevenueBase Database · checked Sep 16, 2026
21	Teknoluxion, A Division Of Bcore	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	47 contacts →
	Indirect 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 16, 2026
22	Avid Systems LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	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 16, 2026
23	Polycon Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	38 contacts →
	Indirect evidence “PolyCon Solutions is a certified participant of the U.S.” Source: RevenueBase Database · checked Sep 16, 2026
24	Iuvo Systems	Strong evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	11-50	36 contacts →
	Strong evidence “At Iuvo Systems Inc, we empower government contractors and federal agencies to succeed by delivering specialized accounting, compliance, and business solutions tailored to the…” Source: RevenueBase Database · checked Sep 16, 2026
25	Verium	Partial evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	n/a	31 contacts →
	Partial 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 16, 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 contractors. 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 contractors.
Partial evidence: Its own public description names part of government contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name government contractors. 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 116 government contractors based in Washington, United States

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Government contractors based in Washington, United States at a glance

As of Sep 16, 2026

24.1%Verified-email coverage

28.8Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Washington

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

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 116 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 contractors, 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 “government contractors”. 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 contractors), 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 contractors, 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, 806 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 16, 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 contractors by metro in the United States

Government contractors in Washington116
Government contractors in Reston85
Government contractors in Alexandria75
Government contractors in Herndon69
Government contractors in Mclean64
Government contractors in Chantilly62
Government contractors in Fairfax61
Government contractors in Arlington59
Government contractors in Huntsville53
Government contractors in Vienna52
Government contractors in Columbia36
Government contractors in San Antonio36
Government contractors in Rockville34
Government contractors in Leesburg33
Government contractors in Atlanta30
Government contractors in Ashburn28
Government contractors in Bethesda27
Government contractors in Baltimore26
Government contractors in Colorado Springs25

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 contractors, 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 contractors are there based in Washington, United States?

RevenueBase identified 116 government contractors 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 has the most government contractors?

Washington leads with 116 headquartered companies, followed by Reston (85) and Alexandria (75).

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 806 verified decision-maker contacts tracked across these 116 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 16, 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.