Company lists · Data refreshed September 2026

Top 25 Federal government contractors based in Washington, United States

Name: Federal 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 130 companies tracked

RevenueBase identified 130 company matches for federal government contractors associated with Washington, United States as of September 2026 and tracks 3,126 professional contacts across them, including 838 with verified work emails. Across the United States, Washington is the largest hub for this category.

This list covers company matches for federal government contractors associated with Washington, 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 16, 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 16, 2026 How this list was built

130Companies

3,126Contacts tracked

838Verified emails

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The 25 largest federal government contractors based in Washington, United States

Ranked by team size

Top 25 of 130 company matches for federal government contractors based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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	Computer World Services Corp. CWS	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	201-500	314 contacts →
	Exact match “With over 30 years of hands-on experience, Computer World Services Corp.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2	TCG	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	263 contacts →
	Exact match “Traditional we are not.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3	The Columbia Group	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	501-1,000	147 contacts →
	Exact match “The Columbia Group is a premier federal services support company with a successful history of providing the United States government with program management, acquisition…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4	CGS Federal Contact Government Services	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	141 contacts →
	Exact match “Contact Government Services strives to simplify and enhance government bureaucracy through the optimization of human, technical, and financial resources.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5	Analytica	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	135 contacts →
	Exact match “Analytica is an award-winning consulting and technology services provider that supports public-sector health, civilian, and national security.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6	DHA Group, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	201-500	135 contacts →
	Exact match “DHA is a full-service Information Technology and Consulting firm dedicated to providing mission-critical services to our Federal Government and commercial clients.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7	Venesco, LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	201-500	120 contacts →
	Exact match “Venesco, LLC is a premier government contractor delivering Healthcare, IT, Research & Development, and a range of mission‑critical services to federal agencies.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8	Integrated Finance & Accounting Solutions Ifas	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	201-500	111 contacts →
	Exact match “IFAS is a professional services firm that leverages technology to provide integrated financial management solutions and capabilities that include Program Budgeting & Cost…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9	Martek Global	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	105 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10	Arlo Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	100 contacts →
	Exact match “Arlo Solutions (Arlo), is a Washington, DC professional services company, providing cybersecurity and management consulting services to the US government in the defense…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11	Simple Technology Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	90 contacts →
	Exact match “Simple Technology Solutions (STS) has in-depth experience helping federal & state government agencies in their Agile/DevOps/Cloud adoption & transformation.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12	Veracity Engineering	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	80 contacts →
	Exact match “Since 2001, Veracity Engineering has been successful in building, growing, and performing on a portfolio of technically challenging engineering and program management engagements…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13	Tsymmetry	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	79 contacts →
	Exact match “You need more than a contractor.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14	Patrona Corporation	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	69 contacts →
	Exact match “Patrona Corporation is a DoD federal contractor providing program management, engineering, strategic and operational planning, quality assurance, financial management, and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15	B360 Bizsolutions 360 INC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	201-500	58 contacts →
	Exact match “BizSolutions 360 Inc.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16	Parker Tide LLC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	58 contacts →
	Exact match “For over 20 years, Parker Tide has provided human resources support, personnel security, strategic solutions, and staff augmentation, nationwide to Federal customers.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17	Banner Staffing	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	n/a	49 contacts →
	Exact match “Banner Staffing LLC is a high-quality provider of Professional, Management and Administrative support services.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18	Prosource360 Consulting Services	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	47 contacts →
	Exact match “Founded in 2011, ProSource360 is a premier professional, healthcare and technology services consulting firm supporting federal and commercial markets.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19	Trust Consulting Services INC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	201-500	42 contacts →
	Exact match “We bring an experience unmatched anywhere else, with knowledgeable and thoughtful consultants plus flexible, tailored approaches, all centered on the right outcomes for your…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20	Polycon Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	51-200	38 contacts →
	Exact match “PolyCon Solutions is a certified participant of the U.S.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21	Iuvo Systems	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	36 contacts →
	Exact match “At Iuvo Systems Inc, we empower government contractors and federal agencies to succeed by delivering specialized accounting, compliance, and business solutions tailored to the…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22	Verium	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	n/a	31 contacts →
	Exact match “Verium is a privately-owned firm offering professional IT services and solutions to federal, state and local government clients.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23	Ip-Plus Consulting, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	26 contacts →
	Exact match “iP-PLUS CONSULTING is an IT solutions company that focuses on providing high quality professionals, innovative technical solutions, and delivering exceptional service support to…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24	Teamgov, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	1-10	25 contacts →
	Exact match “Team GOV is leading provider of project management, staffing augmentation, IT, telecommunications and procurement services for a variety of government and commercial customers.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25	Tarkik Solutions	Exact match	Washington, DC, United StatesHQ recorded Sep 16, 2026	11-50	22 contacts →
	Exact match “Tarkik Solutions (Tarkik) is an SBA 8(a) certified small business that provides information technology, management, and strategy consulting services to public sector clients.” Recorded in the RevenueBase company graph · Sep 16, 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 “federal government contractors”. 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 130 federal government contractors based in Washington, United States

See the full list, filter by size, metro and specialty, and access 838 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Federal government contractors based in Washington, United States at a glance

As of Sep 16, 2026

26.8%Verified-email coverage

24.0Average contacts per company

11-50Median size (employees)

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 130 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 Washington, United States whose business descriptions match “federal government contractors” 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 838 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 16, 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.

Federal government contractors by metro in the United States

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 “federal government contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many federal government contractors are there based in Washington, United States?

RevenueBase identified 130 company matches for federal government contractors associated with Washington, 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?

Computer World Services Corp. CWS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most federal government contractors?

Washington leads the United States with 130 company records, followed by Reston (84) and Alexandria (64).

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 838 professional contacts with verified work emails tracked across these 130 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 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 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.