Company lists · Data refreshed November 2026

Top 25 Defense systems engineering consultants based in the United States

Name: Defense systems engineering consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 1,746 companies tracked

RevenueBase identified 1,746 company matches for defense systems engineering consultants associated with the United States as of November 2026 and tracks 82,082 professional contacts across them, including 16,781 with verified work emails. Huntsville is the largest hub.

This list covers company matches for defense systems engineering consultants associated with the 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 November 6, 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 Nov 6, 2026 How this list was built

1,746Companies

82,082Contacts tracked

16,781Verified emails

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The 25 largest defense systems engineering consultants based in the United States

Ranked by team size

Top 25 of 1,746 company matches for defense systems engineering consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	AEGIS	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	n/a	2,517 contacts →
	Exact match “Aegis provides custom engineering and technology development services to a broad array of clients, including Fortune 100 companies, the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	American Systems	Exact match	Mclean, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,085 contacts →
	Exact match “Founded in 1975, AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Modern Technology Solutions, Inc. Mtsi	Exact match	Alexandria, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,042 contacts →
	Exact match “Modern Technology Solutions, Inc.(MTSI) is a 100% employee-owned engineering services and technology solutions company delivering first-choice capabilities to solve problems of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Exponent	Exact match	Menlo Park, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,679 contacts →
	Exact match “In an era of accelerating change, Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Engility Corporation	Exact match	Reston, VA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,397 contacts →
	Exact match “Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	COLSA	Exact match	Huntsville, OH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,382 contacts →
	Exact match “COLSA Corporation is an engineering and support services company founded in 1980.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	VT Group VTG	Exact match	Alexandria, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,219 contacts →
	Exact match “VTG delivers force modernization and digital transformation solutions that expand America’s competitive advantage in the modern battlespace.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Radiance Technologies	Exact match	Huntsville, AL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,085 contacts →
	Exact match “Radiance Technologies, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	DSA	Exact match	Trevose, VA, United StatesHQ recorded Nov 6, 2026	201-500	944 contacts →
	Exact match “Data Systems Analysts (DSA) is a mission technology company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	TSC	Exact match	Arlington, MD, United StatesHQ recorded Nov 6, 2026	501-1,000	932 contacts →
	Exact match “TSC is an employee-owned, high technology company engaged in providing engineering services and specialized products to U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Arcfield	Exact match	Chantilly, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	909 contacts →
	Exact match “Arcfield was purpose-built to protect the nation and its allies through innovations in systems engineering and integration, space and mission launch assurance, cybersecurity and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Teledyne Brown Engineering	Exact match	Huntsville, United StatesHQ recorded Nov 6, 2026	1,001-5,000	869 contacts →
	Exact match “Teledyne Brown Engineering is a leader in providing innovative systems engineering, integration, operations and advanced manufacturing solutions for defense, space, marine and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	KAY And Associates, INC	Exact match	Buffalo Grove, IL, United StatesHQ recorded Nov 6, 2026	501-1,000	796 contacts →
	Exact match “Kay and Associates, Inc.(KAI) has kept the world's most demanding fleets mission-ready since 1960.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Precise Systems, INC	Exact match	Lexington Park, MD, United StatesHQ recorded Nov 6, 2026	1,001-5,000	778 contacts →
	Exact match “Precise Systems delivers integrated, mission-ready solutions that advance warfighter readiness and strengthen our nation’s most critical defense programs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Abacus Technology Corporation	Exact match	Chevy Chase, MD, United StatesHQ recorded Nov 6, 2026	501-1,000	683 contacts →
	Exact match “Abacus Technology Corporation delivers leading edge, high quality assistance in response to complex technology challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Planned Systems International	Exact match	Columbia, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	638 contacts →
	Exact match “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Respec	Exact match	Rapid City, KY, United StatesHQ recorded Nov 6, 2026	501-1,000	626 contacts →
	Exact match “In a world where one superhero can handle almost any problem, our entire team of award-winning technology experts is on a mission to make your business better.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Linquest	Exact match	Herndon, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	612 contacts →
	Exact match “LinQuest delivers performance excellence across the Air, Land, Sea, Space, and Cyberspace domains.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Icr, INC	Exact match	Aurora, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	596 contacts →
	Exact match “We will be the first to identify and solve the Intelligence and Defense Communities’ toughest engineering and operational problems by establishing a true partnership with our…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Life Cycle Engineering	Exact match	Charleston, SC, United StatesHQ recorded Nov 6, 2026	501-1,000	564 contacts →
	Exact match “Life Cycle Engineering (LCE) provides consulting, engineering, information technology and education solutions that deliver lasting results for private industry, public entities…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Ares Corporation	Exact match	Mclean, VA, United StatesHQ recorded Nov 6, 2026	501-1,000	542 contacts →
	Exact match “ARES Corporation is one of the foremost Engineering, Project Management, Reliability and Mission Assurance, IT Architecture and Security, and Software Solutions companies in the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	ASEC	Exact match	Lexington Park, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	529 contacts →
	Exact match “ASEC is an award-winning, 100% employee-owned business specializing in engineering, IT, training, and logistics, ensuring mission success through specialized expertise and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Sev1tech LLC	Exact match	Woodbridge, VA, United StatesHQ recorded Nov 6, 2026	501-1,000	524 contacts →
	Exact match “Sev1Tech is a leader in providing innovative technology, high-end engineering and mission solutions and services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Valkyrie Enterprises	Exact match	Virginia Beach, VA, United StatesHQ recorded Nov 6, 2026	501-1,000	507 contacts →
	Exact match “Valkyrie, an ISO 9001:2015 certified company, enhances our customers' operations by providing engineering and technological expertise in digital engineering, logistics, program…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Bastion Technologies, INC	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	503 contacts →
	Exact match “Bastion Technologies is a multi-disciplined engineering and technical services company headquartered in Houston, Texas.” Recorded in the RevenueBase company graph · Nov 6, 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 “defense systems engineering consultants”. 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 1,746 defense systems engineering consultants based in the United States

See the full list, filter by size, metro and specialty, and access 16,781 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Defense systems engineering consultants based in the United States at a glance

As of Nov 6, 2026

20.4%Verified-email coverage

47.0Average contacts per company

11-50Median size (employees)

4.4%Largest-city concentration · Huntsville

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

770

11-50

481

51-200

330

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 1,746 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 the United States whose business descriptions match “defense systems engineering consultants” 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 16,781 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 November 6, 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.

Defense systems engineering consultants by metro

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 “defense systems engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many defense systems engineering consultants are there based in the United States?

RevenueBase identified 1,746 company matches for defense systems engineering consultants associated with the United States as of November 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?

AEGIS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most defense systems engineering consultants?

Huntsville leads with 76 company records, followed by Washington (53) and Arlington (45).

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 16,781 professional contacts with verified work emails tracked across these 1,746 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 November 6, 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.