Company lists · Data refreshed September 2026

Top 25 Defense and security research organizations based in the United States

Name: Defense and security research organizations based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 599 companies tracked

RevenueBase identified 599 defense and security research organizations headquartered in the United States as of September 2026 and tracks 332,670 professional contacts across them, including 27,908 with verified work emails. Washington is the largest hub.

This list covers defense and security research organizations 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

599Companies

332,670Contacts tracked

27,908Verified emails

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The 25 largest defense and security research organizations based in the United States

Ranked by team size

Top 25 of 599 defense and security research organizations based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to defense and security research organizations: 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	Lockheed Martin	Indirect evidence	Bethesda, MD, United StatesHQ checked Sep 28, 2026	10001+	95,871 contacts →
	Indirect evidence “The world relies on what we do.” Source: RevenueBase Database · checked Sep 28, 2026
2	Northrop Grumman	Indirect evidence	Falls Church, VA, United StatesHQ checked Sep 28, 2026	10001+	74,984 contacts →
	Indirect evidence “We are a close-knit community of big thinkers collaborating to keep the world safe.” Source: RevenueBase Database · checked Sep 28, 2026
3	Amentum	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 28, 2026	10001+	18,375 contacts →
	Indirect evidence “Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex…” Source: RevenueBase Database · checked Sep 28, 2026
4	MITRE	Partial evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	5,001-10,000	8,490 contacts →
	Partial evidence “MITRE is a nonprofit systems engineering, applied research, and advanced technology organization.” Source: RevenueBase Database · checked Sep 28, 2026
5	Battelle	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 28, 2026	10001+	5,574 contacts →
	Indirect evidence “Every day, the people of Battelle apply science and technology to solving what matters most.” Source: RevenueBase Database · checked Sep 28, 2026
6	Entegris	Indirect evidence	Billerica, MA, United StatesHQ checked Sep 28, 2026	5,001-10,000	5,549 contacts →
	Indirect evidence “Artificial intelligence, augmented reality, Internet of Things – these are not just trends, they are drivers changing the way people live across the globe.” Source: RevenueBase Database · checked Sep 28, 2026
7	Anduril Industries	Partial evidence	Orange County, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,967 contacts →
	Partial evidence “Anduril is not a traditional defense contractor.” Source: RevenueBase Database · checked Sep 28, 2026
8	AIR Force Research Laboratory	Indirect evidence	Wright-patterson Afb, OH, United StatesHQ checked Sep 28, 2026	10001+	2,874 contacts →
	Indirect evidence “WHAT WE DO We lead the discovery, development and delivery of warfighting technologies for our air, space and cyberspace forces.” Source: RevenueBase Database · checked Sep 28, 2026
9	ARA	Strong evidence	Albuquerque, NM, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,733 contacts →
	Strong evidence “Applied Research Associates, Inc.(ARA) is the company that government and industry turn to for innovative technologies and solutions to problems that improve our safety, security…” Source: RevenueBase Database · checked Sep 28, 2026
10	DCS Corp	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 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 28, 2026
11	SRC	Strong evidence	North Syracuse, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,494 contacts →
	Strong evidence “SRC, Inc, a not-for-profit research and development company, combines information, science, technology and ingenuity to solve “impossible” problems in the areas of defense…” Source: RevenueBase Database · checked Sep 28, 2026
12	CNA Corporation	Strong evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	501-1,000	1,386 contacts →
	Strong evidence “CNA is a nonprofit research and analysis organization dedicated to the safety and security of the nation.” Source: RevenueBase Database · checked Sep 28, 2026
13	Qinetiq US	Strong evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,383 contacts →
	Strong evidence “For over 60 years, QinetiQ US has been providing world-class technology development, engineering research and development and revolutionary products to the defense, security, and…” Source: RevenueBase Database · checked Sep 28, 2026
14	Institute For Defense Analyses	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,343 contacts →
	Strong evidence “IDA (Institute for Defense Analyses) – a not-for-profit corporation headquartered in Alexandria, Virginia just outside Washington, DC – operates three Federally Funded Research…” Source: RevenueBase Database · checked Sep 28, 2026
15	Concurrent Technologies Corporation	Partial evidence	Johnstown, PA, United StatesHQ checked Sep 28, 2026	201-500	1,149 contacts →
	Partial evidence “Concurrent Technologies Corporation (CTC) is an independent, nonprofit, applied scientific research and development professional services organization.” Source: RevenueBase Database · checked Sep 28, 2026
16	Agile Defense	Strong evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,086 contacts →
	Strong evidence “Agile Defense: Always Evolving Agile Defense stands at the forefront of innovation, driving advanced capabilities and solutions tailored to the most critical national security and…” Source: RevenueBase Database · checked Sep 28, 2026
17	HRL Laboratories, LLC	Indirect evidence	Malibu, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,011 contacts →
	Indirect evidence “HRL Laboratories pioneers the next frontiers of physical and information science.” Source: RevenueBase Database · checked Sep 28, 2026
18	Metrea	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	501-1,000	678 contacts →
	Partial evidence “Metrea, formerly Meta Aerospace, offers a deep stack of defense capabilities and services for our customers and partners, allowing them to anticipate, secure, and defend their…” Source: RevenueBase Database · checked Sep 28, 2026
19	Bluehalo, An AV Company	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	667 contacts →
	Partial evidence “BlueHalo is now part of AV, a global defense technology leader built for scale, driven by innovation, and delivering #AllDomainDominance across every domain of modern…” Source: RevenueBase Database · checked Sep 28, 2026
20	TWO SIX Technologies	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	501-1,000	647 contacts →
	Indirect evidence “At Two Six Technologies, we build, deploy, and implement innovative products that solve the world’s most complex challenges today.” Source: RevenueBase Database · checked Sep 28, 2026
21	Peopletec, INC	Indirect evidence	Huntsville, AL, United StatesHQ checked Sep 28, 2026	501-1,000	535 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
22	ANSER	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	501-1,000	517 contacts →
	Indirect evidence “In 1958 the Air Force needed a technically qualified unbiased organization that could rapidly provide analysis for identified and evolving mission requirements.” Source: RevenueBase Database · checked Sep 28, 2026
23	Core4ce	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	501-1,000	457 contacts →
	Partial evidence “Core4ce is a trusted national security partner that operates with a data mindset.” Source: RevenueBase Database · checked Sep 28, 2026
24	Mriglobal	Partial evidence	Kansas City, MO, United StatesHQ checked Sep 28, 2026	201-500	397 contacts →
	Partial evidence “MRIGlobal is a world leader in applied science and technology research.” Source: RevenueBase Database · checked Sep 28, 2026
25	Macaulay-Brown, Inc. Macb , An Alion Company	Partial evidence	Dayton, OH, United StatesHQ checked Sep 28, 2026	1,001-5,000	381 contacts →
	Partial 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 28, 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: defense and security research organizations. 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 defense and security research organizations.
Partial evidence: Its own public description names part of defense and security research organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense and security research organizations. 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 599 defense and security research organizations based in the United States

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Defense and security research organizations based in the United States at a glance

As of Sep 28, 2026

8.4%Verified-email coverage

555.4Average contacts per company

11-50Median size (employees)

6.2%Largest-city concentration · Washington

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

196

11-50

195

51-200

101

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 599 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 defense and security research organizations, 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 “defense and security research organizations”. 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 defense and security research organizations), 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 defense and security research organizations, 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, 27,908 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.

Defense and security research organizations 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 defense and security research organizations, 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 defense and security research organizations are there based in the United States?

RevenueBase identified 599 defense and security research organizations 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?

Lockheed Martin, headquartered in Bethesda, tops this list with the largest team on record.

Which city has the most defense and security research organizations?

Washington leads with 37 headquartered companies, followed by Arlington (34) and Alexandria (20).

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 27,908 verified decision-maker contacts tracked across these 599 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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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.