Company lists · Data refreshed September 2026

Top 25 Federal government contractors based in Alexandria, United States

Name: Federal government contractors based in Alexandria, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 64 companies tracked

RevenueBase identified 64 federal government contractors headquartered in Alexandria, United States as of September 2026 and tracks 5,494 professional contacts across them, including 997 with verified work emails. Washington is the largest hub.

This list covers federal government contractors headquartered in Alexandria, 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

64Companies

5,494Contacts tracked

997Verified emails

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

Ranked by team size

Top 25 of 64 federal government contractors based in Alexandria, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to federal 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	DCS Corp	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,898 contacts →
	Partial evidence “DCS delivers advanced technology and management solutions to Government agencies in the national security sector.” Source: RevenueBase Database · checked Sep 16, 2026
2	Calibre Systems, INC	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	501-1,000	768 contacts →
	Partial evidence “CALIBRE Systems, Inc.(CALIBRE) is an employee-owned AI transformation company delivering mission focused solutions to Defense, Federal / Civil, and Commercial clients.” Source: RevenueBase Database · checked Sep 16, 2026
3	Culmen International	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	201-500	320 contacts →
	Indirect evidence “Established in 2004, Culmen International, LLC is a privately held U.S.” Source: RevenueBase Database · checked Sep 16, 2026
4	Planate Management Group	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	201-500	318 contacts →
	Indirect evidence “Planate Management Group (PMG) is a global leader in delivering engineering, construction and program management solutions that support mission success in complex and high-risk…” Source: RevenueBase Database · checked Sep 16, 2026
5	Mayvin, INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	501-1,000	310 contacts →
	Indirect evidence “Mayvin is dedicated to protecting the interests of the United States.” Source: RevenueBase Database · checked Sep 16, 2026
6	Prosphere	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	201-500	231 contacts →
	Strong evidence “ProSphere is a market-leading, mid-tier technology integrator that delivers digital modernization services and technical solutions to meet the needs of our federal government…” Source: RevenueBase Database · checked Sep 16, 2026
7	TWD & Associates, INC	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	n/a	155 contacts →
	Partial evidence “TWD delivers technology solutions that provide business value to customers, from large federal agencies in highly secure environments to commercial companies and non-profits.” Source: RevenueBase Database · checked Sep 16, 2026
8	CMI Management	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	125 contacts →
	Strong evidence “CMI Management delivers top-tier government facilities services, offering innovative, reliable solutions that meet the evolving needs of federal clients across the country.” Source: RevenueBase Database · checked Sep 16, 2026
9	Edgesource Corporation	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	114 contacts →
	Indirect evidence “NATIONAL SECURITY EXPERTISE THAT POWERS MISSION SUCCESS Edgesource doesn't observe the mission from afar-we advance it from within.* 24/7/365 Vigilance * Automated Insights *…” Source: RevenueBase Database · checked Sep 16, 2026
10	Addx Corporation	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	112 contacts →
	Indirect evidence “Tenacious by nature, Addx Corporation is a solutions integrator providing leading technology and mission-essential business services to the U.S.” Source: RevenueBase Database · checked Sep 16, 2026
11	AGE Solutions LLC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	109 contacts →
	Indirect evidence “AGE Solutions is a premier technology and professional services company, providing in-depth consulting, advanced technology solutions, and essential services throughout the U.S.” Source: RevenueBase Database · checked Sep 16, 2026
12	BAI INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	106 contacts →
	Indirect evidence “For more than 20 years, BAI – one of Inc.” Source: RevenueBase Database · checked Sep 16, 2026
13	Plexus Scientific	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	88 contacts →
	Indirect evidence “Plexus Scientific Corporation offers IT solutions, environmental remediation services, sustainability solutions, and nuclear solutions.” Source: RevenueBase Database · checked Sep 16, 2026
14	B3 Solutions, LLC	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	201-500	85 contacts →
	Partial evidence “B3 Solutions, LLC provides customer-focused services and solutions that enable government organizations to optimize their performance.” Source: RevenueBase Database · checked Sep 16, 2026
15	SBG Technology Solutions, INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	82 contacts →
	Indirect evidence “SBG Technology Solutions, Inc.(SBG) a wholly-owned subsidiary of DSS, Inc, offers IT Governance, Program Management, Systems Engineering, Enterprise Modernization, Artificial…” Source: RevenueBase Database · checked Sep 16, 2026
16	Technical And Project Engineering Tape , LLC	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	73 contacts →
	Strong evidence “TAPE is dedicated to keeping the nation safe and strong by providing Technology Services, Training and Readiness Solutions, and Management Consulting to the Federal government.” Source: RevenueBase Database · checked Sep 16, 2026
17	SDV International	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	201-500	71 contacts →
	Indirect evidence “Falling behind is expensive.” Source: RevenueBase Database · checked Sep 16, 2026
18	Fedsync	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	69 contacts →
	Partial evidence “Federal Integrated Systems Corporation (FedSync) is a ISO 9001 Quality Management Systems Certified and SBA 8(a) certified vendor supporting multiple federal agencies.” Source: RevenueBase Database · checked Sep 16, 2026
19	Nextstep Technology, INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	201-500	68 contacts →
	Indirect evidence “NextStep specializes in leveraging top talent and advanced technologies to improve operational efficiency, quality, customer service, and performance across the U.S.” Source: RevenueBase Database · checked Sep 16, 2026
20	Ardelle Associates	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	11-50	37 contacts →
	Partial evidence “Ardelle has been in business since 1980, is veteran-owned, and has established a history of solid, quality service to both commercial clients and the Government.” Source: RevenueBase Database · checked Sep 16, 2026
21	Advanced Resource Technologies, INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	28 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
22	Mirlogic Solutions Corporation	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 16, 2026
23	World Services LLC Of Virginia	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	11-50	19 contacts →
	Indirect evidence “World Services offers a wide variety of IT services to support enterprises at every level.” Source: RevenueBase Database · checked Sep 16, 2026
24	Acuity Consulting, INC	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 16, 2026	51-200	18 contacts →
	Strong evidence “Providing the federal government, and specifically the Department of Defense (DoD), with audit and audit readiness and management & technology consulting services, Acuity offers…” Source: RevenueBase Database · checked Sep 16, 2026
25	Antean Technology	Indirect evidence	Alexandria, United StatesHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence “3x Inc.” 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: federal 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 federal government contractors.
Partial evidence: Its own public description names part of federal government contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name federal 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 64 federal government contractors based in Alexandria, United States

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

As of Sep 16, 2026

18.1%Verified-email coverage

85.8Average contacts per company

11-50Median size (employees)

203.1%Largest-city concentration · Washington

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Alexandria, so it is reported there. Company counts and contact totals on this page are exact for Alexandria, over 64 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 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 Alexandria, United States whose own description of what they do matches “federal 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 federal 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 federal government contractors, and records with no verified work email. Companies headquartered outside Alexandria 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, 997 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.

Federal government contractors by metro in the United States

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 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 federal government contractors are there based in Alexandria, United States?

RevenueBase identified 64 federal government contractors headquartered in Alexandria, 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?

DCS Corp, headquartered in Alexandria, tops this list with the largest team on record.

Which city has the most federal government contractors?

Washington leads with 130 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 997 verified decision-maker contacts tracked across these 64 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.