Company lists · Data refreshed September 2026

Top 25 Defence consulting firms based in the United States

Name: Defence consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,368 companies tracked

RevenueBase identified 1,368 defence consulting firms headquartered in the United States as of September 2026 and tracks 32,584 professional contacts across them, including 9,148 with verified work emails. Washington is the largest hub.

This list covers defence consulting firms headquartered in the 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 21, 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 21, 2026 86% judged on-target in blind review

1,368Companies

32,584Contacts tracked

9,148Verified emails

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The 25 largest defence consulting firms based in the United States

Ranked by team size

Top 25 of 1,368 defence consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to defence consulting firms: 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	Mantech	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 21, 2026	5,001-10,000	9,697 contacts →
	Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 21, 2026
2	Systems Planning & Analysis	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,092 contacts →
	Indirect evidence “Systems Planning & Analysis (SPA) is a leading global provider of data-driven analytical insights for critical national security programs.” Source: RevenueBase Database · checked Sep 21, 2026
3	IEM	Indirect evidence	Morrisville, NC, United StatesHQ checked Sep 21, 2026	501-1,000	1,175 contacts →
	Indirect evidence “IEM is a professional services firm dedicated to building a safe, secure, and resilient world.” Source: RevenueBase Database · checked Sep 21, 2026
4	Sallyport Global	Indirect evidence	Reston, VA, United StatesHQ checked Sep 21, 2026	1,001-5,000	629 contacts →
	Indirect evidence “Sallyport Global a Caliburn company is a global provider of a full spectrum of security and mission support solutions tailored to enable global security and stability operations.” Source: RevenueBase Database · checked Sep 21, 2026
5	Applied Research Solutions	Partial evidence	Beavercreek, OH, United StatesHQ checked Sep 21, 2026	501-1,000	597 contacts →
	Partial evidence “Started in 2012, ARS is a growing business serving the Department of Defense and Intelligence Community.” Source: RevenueBase Database · checked Sep 21, 2026
6	MSA Security	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	10001+	571 contacts →
	Indirect evidence “Allied Universal Enhanced Protection Services delivers unrivaled threat mitigation expertise for government and business entities worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
7	Macaulay-Brown, Inc. Macb , An Alion Company	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 21, 2026	1,001-5,000	381 contacts →
	Indirect evidence “For 39 years, MacAulay-Brown, Inc.(MacB), an Alion Company, has been solving many of the Nation’s most complex National Security challenges.” Source: RevenueBase Database · checked Sep 21, 2026
8	Deep Water Point & Associates	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 21, 2026	201-500	350 contacts →
	Indirect evidence “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Source: RevenueBase Database · checked Sep 21, 2026
9	Technomics, INC	Partial evidence	Arlington, VA, United StatesHQ checked Sep 21, 2026	201-500	335 contacts →
	Partial evidence “Technomics is a growing, employee-owned consulting firm that specializes in the exciting and challenging field of weapon system cost analysis.” Source: RevenueBase Database · checked Sep 21, 2026
10	Sparta	Partial evidence	Colorado Springs, CO, United StatesHQ checked Sep 21, 2026	1,001-5,000	317 contacts →
	Partial evidence “SPARTA, Inc, recently acquired by Parsons, provides world-class technical products and services to the defense, intelligence and homeland security sectors of the US federal…” Source: RevenueBase Database · checked Sep 21, 2026
11	Fgs, LLC	Indirect evidence	La Plata, MD, United StatesHQ checked Sep 21, 2026	201-500	312 contacts →
	Indirect evidence “Where Mission Meets Technology.” Source: RevenueBase Database · checked Sep 21, 2026
12	Feditc	Indirect evidence	Rockville, MD, United StatesHQ checked Sep 21, 2026	201-500	296 contacts →
	Indirect evidence “Founded in 2003, FEDITC, LLC is an ISO and CMMI level 3 certified cyber security, IT, and engineering services firm.” Source: RevenueBase Database · checked Sep 21, 2026
13	Research Innovations Incorporated	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 21, 2026	201-500	293 contacts →
	Partial evidence “Research Innovations Inc.(RII) supports critical defense, intelligence, and cyber customers across the U.S.” Source: RevenueBase Database · checked Sep 21, 2026
14	Intellibridge, An Agile Defense Company	Partial evidence	Mclean, VA, United StatesHQ checked Sep 21, 2026	201-500	276 contacts →
	Partial evidence “IntelliBridge, An Agile Defense Company, delivers IT strategy, cloud, cybersecurity, application, data and analytics, enterprise IT, intelligence analysis, and mission operation…” Source: RevenueBase Database · checked Sep 21, 2026
15	Imagine ONE Technology & Management, LTD	Indirect evidence	Lexington Park, MD, United StatesHQ checked Sep 21, 2026	201-500	264 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
16	MVL Group	Partial evidence	Lansing, MI, United StatesHQ checked Sep 21, 2026	201-500	259 contacts →
	Partial evidence “MVL is an exceptionally rated prime contractor and construction company that provides professional services within the defense, construction & engineering industries.” Source: RevenueBase Database · checked Sep 21, 2026
17	VMD Corp	Strong evidence	Mclean, VA, United StatesHQ checked Sep 21, 2026	501-1,000	254 contacts →
	Strong evidence “About VMD VMD, now a part of Xcelerate Solutions, is a leading defense and national security company, delivering integrated solutions in enterprise security, strategic consulting…” Source: RevenueBase Database · checked Sep 21, 2026
18	Threat Tec, LLC	Indirect evidence	Hampton, VA, United StatesHQ checked Sep 21, 2026	501-1,000	247 contacts →
	Indirect evidence “At Threat Tec, we are passionate about enabling and supporting the interests of the United States and its allies.” Source: RevenueBase Database · checked Sep 21, 2026
19	Sawdey Solution Services	Indirect evidence	Beavercreek, OH, United StatesHQ checked Sep 21, 2026	201-500	234 contacts →
	Indirect evidence “For over 20 years, Sawdey Solutions Services has provided both Government and commercial clients with innovative cross-disciplined professional services that aim not only to…” Source: RevenueBase Database · checked Sep 21, 2026
20	2 Circle, INC	Indirect evidence	California, MD, United StatesHQ checked Sep 21, 2026	51-200	213 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
21	Sobran-Inc	Indirect evidence	Falls Church, VA, United StatesHQ checked Sep 21, 2026	201-500	205 contacts →
	Indirect evidence “SoBran, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
22	Strategic Analysis Incorporated	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 21, 2026	201-500	202 contacts →
	Indirect evidence “Strategic Analysis Inc.(SA) is an industry-leading government professional services firm that excels in providing innovative solutions to the problems of today and tomorrow.” Source: RevenueBase Database · checked Sep 21, 2026
23	ASI Government	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 21, 2026	51-200	192 contacts →
	Indirect evidence “For nearly two decades, ASI Government has served as a trusted advisor to government leaders seeking to improve mission performance, enhance organizational effectiveness and drive…” Source: RevenueBase Database · checked Sep 21, 2026
24	Lindahl Reed INC	Indirect evidence	Bend, OR, United StatesHQ checked Sep 21, 2026	201-500	190 contacts →
	Indirect evidence “Lindahl Reed empowers tomorrow by inspiring change and shaping a better future.” Source: RevenueBase Database · checked Sep 21, 2026
25	Gemini Industries	Indirect evidence	Burlington, MA, United StatesHQ checked Sep 21, 2026	51-200	179 contacts →
	Indirect evidence “Gemini delivers No-Fail, No-Excuses Execution so that leaders achieve their goals.” Source: RevenueBase Database · checked Sep 21, 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: defence consulting firms. 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 defence consulting firms.
Partial evidence: Its own public description names part of defence consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defence consulting firms. 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 1,368 defence consulting firms based in the United States

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Defence consulting firms based in the United States at a glance

As of Sep 21, 2026

28.1%Verified-email coverage

23.8Average contacts per company

1-10Median size (employees)

8.2%Largest-city concentration · Washington

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

874

11-50

298

51-200

140

201-500

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 1,368 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 defence consulting firms, 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 the United States whose own description of what they do matches “defence consulting firms”. 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 defence consulting firms), 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 defence consulting firms, and records with no verified work email. Companies headquartered outside United States 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, 9,148 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 21, 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.

Defence consulting firms by metro

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 defence consulting firms, 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 defence consulting firms are there based in the United States?

RevenueBase identified 1,368 defence consulting firms headquartered in the 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?

Mantech, headquartered in Herndon, tops this list with the largest team on record.

Which city has the most defence consulting firms?

Washington leads with 112 headquartered companies, followed by Arlington (54) and Alexandria (39).

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 9,148 verified decision-maker contacts tracked across these 1,368 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 21, 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.