Company lists · Data refreshed October 2026
Top 25 Defense contracting companies based in the United States
RevenueBase identified 351 company matches for defense contracting companies associated with the United States as of October 2026 and tracks 147,785 professional contacts across them, including 12,880 with verified work emails. Mclean is the largest hub.
This list covers company matches for defense contracting companies 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 October 11, 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.
The 25 largest defense contracting companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 76,380 contacts → | ||||
Exact match “We are a close-knit community of big thinkers collaborating to keep the world safe.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 2 | 11,065 contacts → | ||||
Exact match “DynCorp International is now part of Amentum.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 3 | 10,966 contacts → | ||||
Exact match “At Peraton, we're at the forefront of delivering the next big thing every day.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 4 | 9,912 contacts → | ||||
Exact match “About Us: At MANTECH, we believe national security demands more than technology-it requires an unwavering dedication to the mission and the warfighters who defend it.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 5 | 4,577 contacts → | ||||
Exact match “ASRC Federal’s employees provide solutions for more than 30 U.S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 6 | 3,530 contacts → | ||||
Exact match “About Vectrus For more than 70 years, Vectrus has provided critical mission support for our customers’ toughest operational challenges.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 7 | 2,088 contacts → | ||||
Exact match “Textron Systems has been providing innovative solutions to the defense, homeland security and aerospace communities for more than 50 years.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 8 | 1,842 contacts → | ||||
Exact match “Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private, founder-led defense and government solutions firm specializing in advanced technology systems and mission…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 9 | 1,692 contacts → | ||||
Exact match “UIC Government Services and its Bowhead Family of Companies are a division of Ukpeaġvik Iñupiat Corporation, an Alaskan Native Corporation.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 10 | 1,503 contacts → | ||||
Exact match “General Dynamics Information Technology and CSRA have united to create the premier provider of high-tech IT solutions to the government IT market.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 11 | 1,082 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 12 | 954 contacts → | ||||
Exact match “Chugach Government Solutions,(CGS) is a government contracting company formed by Chugach Alaska Corporation.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 13 | 901 contacts → | ||||
Exact match “Quantum Sky is a mission technology company that builds secure AI, cyber, cloud, and quantum capabilities for defense, intelligence, and federal civilian agencies.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 14 | 894 contacts → | ||||
Exact match “Data Systems Analysts, Inc.(DSA) has been providing mission essential solutions for Defense, Federal Government, Academia, and Commercial customers since 1963.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 15 | 830 contacts → | ||||
Exact match “A Veteran-owned business, Deployed Services, LLC is proud to be a dedicated strategic partner to federal, state, and local governments.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 16 | 782 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 · Oct 11, 2026 · View company records in RevenueBase | |||||
| 17 | 673 contacts → | ||||
Exact match “ADS provides innovative and cost-effective solutions for our customers’ equipment, procurement, and logistics challenges.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 18 | 516 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 · Oct 11, 2026 · View company records in RevenueBase | |||||
| 19 | 495 contacts → | ||||
Exact match “As of June 1, 2018, we are Perspecta.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 20 | 451 contacts → | ||||
Exact match “J&J Worldwide Services is now CBRE Government & Defense Services.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 21 | 438 contacts → | ||||
Exact match “Zenetex, pronounced zə-`net-iks, specializes in management and technology support services.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 22 | 396 contacts → | ||||
Exact match “Phoenix Defense, LLC and its affiliated companies are agile providers of engineering, manufacturing, information technology, and logistics & supply chain services to the defense…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 23 | 383 contacts → | ||||
Exact match “For 39 years, MacAulay-Brown, Inc.(MacB), an Alion Company, has been solving many of the Nation’s most complex National Security challenges.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 24 | 381 contacts → | ||||
Exact match “Client Solution Architects (CSA) is a global provider of integrated technology and operational support services to defense and federal government organizations.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 25 | 340 contacts → | ||||
Exact match “Established in 2004, Culmen International, LLC is a privately held U.S.” Recorded in the RevenueBase company graph · Oct 11, 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 contracting companies”. 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 351 defense contracting companies based in the United States
See the full list, filter by size, metro and specialty, and access 12,880 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Defense contracting companies based in the United States at a glance
As of Oct 11, 2026Companies by employee count
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 351 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 contracting companies” 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 12,880 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 October 11, 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.
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 contracting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many defense contracting companies are there based in the United States?
RevenueBase identified 351 company matches for defense contracting companies associated with the United States as of October 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?
Northrop Grumman tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most defense contracting companies?
Mclean leads with 16 company records, followed by Alexandria (12) and Huntsville (12).
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 12,880 professional contacts with verified work emails tracked across these 351 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 October 11, 2026.
Ready to reach these companies? Verified emails and direct dials for all 351 defense contracting companies based in the United States. Start with a free account, no credit card.
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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.
More company lists
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- New lists
- AI companies based in the United States
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Company intelligence · public preview
Top 25 defense contracting companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 351 matching company records for defense contracting companies based in the United States, with 147,785 tracked contacts and 12,880 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 11, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 defense contracting companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Northrop Grummannorthropgrumman.comHQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 76,380 contacts → |
“We are a close-knit community of big thinkers collaborating to keep the world safe.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Dyncorp Internationaldyn-intl.com HQ: Mclean, VA, United StatesReported employees: 10001+ | Mclean, VA, United States | 10001+ | Exact match | 11,065 contacts → |
“DynCorp International is now part of Amentum.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Peratonperaton.comHQ: Reston, VA, United StatesReported employees: 10001+ | Reston, VA, United States | 10001+ | Exact match | 10,966 contacts → |
“At Peraton, we're at the forefront of delivering the next big thing every day.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Mantechmantech.comHQ: Herndon, VA, United StatesReported employees: 5,001-10,000 | Herndon, VA, United States | 5,001-10,000 | Exact match | 9,912 contacts → |
“About Us: At MANTECH, we believe national security demands more than technology-it requires an unwavering dedication to the mission and the warfighters who defend it.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Asrc Federalasrcfederal.comHQ: Reston, VA, United StatesReported employees: 5,001-10,000 | Reston, VA, United States | 5,001-10,000 | Exact match | 4,577 contacts → |
“ASRC Federal’s employees provide solutions for more than 30 U.S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Vectrusvectrus.com HQ: Colorado Springs, CO, United StatesReported employees: 5,001-10,000 | Colorado Springs, CO, United States | 5,001-10,000 | Exact match | 3,530 contacts → |
“About Vectrus For more than 70 years, Vectrus has provided critical mission support for our customers’ toughest operational challenges.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Textron Systemstextronsystems.comHQ: Haslet, TX, United StatesReported employees: 1,001-5,000 | Haslet, TX, United States | 1,001-5,000 | Exact match | 2,088 contacts → |
“Textron Systems has been providing innovative solutions to the defense, homeland security and aerospace communities for more than 50 years.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  SOSIsosi.comHQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,842 contacts → |
“Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private, founder-led defense and government solutions firm specializing in advanced technology systems and mission…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Uicgs Bowhead Family Of Companiesbowhead.com HQ: Springfield, VA, United StatesReported employees: 1,001-5,000 | Springfield, VA, United States | 1,001-5,000 | Exact match | 1,692 contacts → |
“UIC Government Services and its Bowhead Family of Companies are a division of Ukpeaġvik Iñupiat Corporation, an Alaskan Native Corporation.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Csra INCgdit.comHQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 1,503 contacts → |
“General Dynamics Information Technology and CSRA have united to create the premier provider of high-tech IT solutions to the government IT market.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Agile Defenseagiledefense.comHQ: Mclean, VA, United StatesReported employees: 1,001-5,000 | Mclean, VA, United States | 1,001-5,000 | Exact match | 1,082 contacts → |
“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…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Chugach Government Solutions, LLCchugachgov.com HQ: Anchorage, AK, United StatesReported employees: 1,001-5,000 | Anchorage, AK, United States | 1,001-5,000 | Exact match | 954 contacts → |
“Chugach Government Solutions,(CGS) is a government contracting company formed by Chugach Alaska Corporation.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Quantum SKYquantumsky.comHQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 901 contacts → |
“Quantum Sky is a mission technology company that builds secure AI, cyber, cloud, and quantum capabilities for defense, intelligence, and federal civilian agencies.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  DSAdsainc.comHQ: Trevose, PA, United StatesReported employees: 201-500 | Trevose, PA, United States | 201-500 | Exact match | 894 contacts → |
“Data Systems Analysts, Inc.(DSA) has been providing mission essential solutions for Defense, Federal Government, Academia, and Commercial customers since 1963.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Deployed Servicesdeployedservices.com HQ: Carrizo Springs, TX, United StatesReported employees: 5,001-10,000 | Carrizo Springs, TX, United States | 5,001-10,000 | Exact match | 830 contacts → |
“A Veteran-owned business, Deployed Services, LLC is proud to be a dedicated strategic partner to federal, state, and local governments.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  KAY And Associates, INCkayinc.comHQ: Buffalo Grove, IL, United StatesReported employees: 501-1,000 | Buffalo Grove, IL, United States | 501-1,000 | Exact match | 782 contacts → |
“Kay and Associates, Inc.(KAI) has kept the world's most demanding fleets mission-ready since 1960.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Ads, INCadsinc.comHQ: Virginia Beach, VA, United StatesReported employees: 201-500 | Virginia Beach, VA, United States | 201-500 | Exact match | 673 contacts → |
“ADS provides innovative and cost-effective solutions for our customers’ equipment, procurement, and logistics challenges.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ASECasec-incorporated.comHQ: Lexington Park, MD, United StatesReported employees: 501-1,000 | Lexington Park, MD, United States | 501-1,000 | Exact match | 516 contacts → |
“ASEC is an award-winning, 100% employee-owned business specializing in engineering, IT, training, and logistics, ensuring mission success through specialized expertise and…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Vencore INCperspecta.comHQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 495 contacts → |
“As of June 1, 2018, we are Perspecta.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | J&j Worldwide Servicescbregds.com HQ: Mclean, VA, United StatesReported employees: 10001+ | Mclean, VA, United States | 10001+ | Exact match | 451 contacts → |
“J&J Worldwide Services is now CBRE Government & Defense Services.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Zenetexzenetex.com HQ: Herndon, VA, United StatesReported employees: 1,001-5,000 | Herndon, VA, United States | 1,001-5,000 | Exact match | 438 contacts → |
“Zenetex, pronounced zə-`net-iks, specializes in management and technology support services.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Phoenix Defense, LLCphx-defense.comHQ: Gilbert, AZ, United StatesReported employees: 501-1,000 | Gilbert, AZ, United States | 501-1,000 | Exact match | 396 contacts → |
“Phoenix Defense, LLC and its affiliated companies are agile providers of engineering, manufacturing, information technology, and logistics & supply chain services to the defense…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Dayton, OH, United StatesReported employees: 1,001-5,000 | Dayton, OH, United States | 1,001-5,000 | Exact match | 383 contacts → |
“For 39 years, MacAulay-Brown, Inc.(MacB), an Alion Company, has been solving many of the Nation’s most complex National Security challenges.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Client Solution Architectscsaassociates.com HQ: Virginia Beach, VA, United StatesReported employees: 501-1,000 | Virginia Beach, VA, United States | 501-1,000 | Exact match | 381 contacts → |
“Client Solution Architects (CSA) is a global provider of integrated technology and operational support services to defense and federal government organizations.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Culmen Internationalculmen.com HQ: Alexandria, VA, United StatesReported employees: 201-500 | Alexandria, VA, United States | 201-500 | Exact match | 340 contacts → |
“Established in 2004, Culmen International, LLC is a privately held U.S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 351 company matches
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Defense contracting companies: dataset insights
October 11, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
351 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 351 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 11, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for defense contracting companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many defense contracting companies did RevenueBase find based in the United States?
The saved snapshot records 351 matching company records, 147,785 tracked contacts and 12,880 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 11, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 defense contracting companies based in the United States. Snapshot: October 11, 2026. https://revenuebase.ai/companies/defense-contracting-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
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- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 25 defense contracting companies based in the United States
RevenueBase records 351 matching company records for defense contracting companies based in the United States, with 147,785 tracked contacts and 12,880 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 11, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 defense contracting companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Northrop Grummannorthropgrumman.com HQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 76,380 contacts → |
“We are a close-knit community of big thinkers collaborating to keep the world safe.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Dyncorp Internationaldyn-intl.com HQ: Mclean, VA, United StatesReported employees: 10001+ | Mclean, VA, United States | 10001+ | Exact match | 11,065 contacts → |
“DynCorp International is now part of Amentum.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Peratonperaton.com HQ: Reston, VA, United StatesReported employees: 10001+ | Reston, VA, United States | 10001+ | Exact match | 10,966 contacts → |
“At Peraton, we're at the forefront of delivering the next big thing every day.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Mantechmantech.com HQ: Herndon, VA, United StatesReported employees: 5,001-10,000 | Herndon, VA, United States | 5,001-10,000 | Exact match | 9,912 contacts → |
“About Us: At MANTECH, we believe national security demands more than technology-it requires an unwavering dedication to the mission and the warfighters who defend it.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Asrc Federalasrcfederal.com HQ: Reston, VA, United StatesReported employees: 5,001-10,000 | Reston, VA, United States | 5,001-10,000 | Exact match | 4,577 contacts → |
“ASRC Federal’s employees provide solutions for more than 30 U.S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Vectrusvectrus.com HQ: Colorado Springs, CO, United StatesReported employees: 5,001-10,000 | Colorado Springs, CO, United States | 5,001-10,000 | Exact match | 3,530 contacts → |
“About Vectrus For more than 70 years, Vectrus has provided critical mission support for our customers’ toughest operational challenges.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Textron Systemstextronsystems.com HQ: Haslet, TX, United StatesReported employees: 1,001-5,000 | Haslet, TX, United States | 1,001-5,000 | Exact match | 2,088 contacts → |
“Textron Systems has been providing innovative solutions to the defense, homeland security and aerospace communities for more than 50 years.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | SOSIsosi.com HQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 1,842 contacts → |
“Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private, founder-led defense and government solutions firm specializing in advanced technology systems and mission…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Uicgs Bowhead Family Of Companiesbowhead.com HQ: Springfield, VA, United StatesReported employees: 1,001-5,000 | Springfield, VA, United States | 1,001-5,000 | Exact match | 1,692 contacts → |
“UIC Government Services and its Bowhead Family of Companies are a division of Ukpeaġvik Iñupiat Corporation, an Alaskan Native Corporation.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Csra INCgdit.com HQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 1,503 contacts → |
“General Dynamics Information Technology and CSRA have united to create the premier provider of high-tech IT solutions to the government IT market.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Agile Defenseagiledefense.com HQ: Mclean, VA, United StatesReported employees: 1,001-5,000 | Mclean, VA, United States | 1,001-5,000 | Exact match | 1,082 contacts → |
“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…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Chugach Government Solutions, LLCchugachgov.com HQ: Anchorage, AK, United StatesReported employees: 1,001-5,000 | Anchorage, AK, United States | 1,001-5,000 | Exact match | 954 contacts → |
“Chugach Government Solutions,(CGS) is a government contracting company formed by Chugach Alaska Corporation.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Quantum SKYquantumsky.com HQ: Reston, VA, United StatesReported employees: 1,001-5,000 | Reston, VA, United States | 1,001-5,000 | Exact match | 901 contacts → |
“Quantum Sky is a mission technology company that builds secure AI, cyber, cloud, and quantum capabilities for defense, intelligence, and federal civilian agencies.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | DSAdsainc.com HQ: Trevose, PA, United StatesReported employees: 201-500 | Trevose, PA, United States | 201-500 | Exact match | 894 contacts → |
“Data Systems Analysts, Inc.(DSA) has been providing mission essential solutions for Defense, Federal Government, Academia, and Commercial customers since 1963.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Deployed Servicesdeployedservices.com HQ: Carrizo Springs, TX, United StatesReported employees: 5,001-10,000 | Carrizo Springs, TX, United States | 5,001-10,000 | Exact match | 830 contacts → |
“A Veteran-owned business, Deployed Services, LLC is proud to be a dedicated strategic partner to federal, state, and local governments.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | KAY And Associates, INCkayinc.com HQ: Buffalo Grove, IL, United StatesReported employees: 501-1,000 | Buffalo Grove, IL, United States | 501-1,000 | Exact match | 782 contacts → |
“Kay and Associates, Inc.(KAI) has kept the world's most demanding fleets mission-ready since 1960.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ads, INCadsinc.com HQ: Virginia Beach, VA, United StatesReported employees: 201-500 | Virginia Beach, VA, United States | 201-500 | Exact match | 673 contacts → |
“ADS provides innovative and cost-effective solutions for our customers’ equipment, procurement, and logistics challenges.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ASECasec-incorporated.com HQ: Lexington Park, MD, United StatesReported employees: 501-1,000 | Lexington Park, MD, United States | 501-1,000 | Exact match | 516 contacts → |
“ASEC is an award-winning, 100% employee-owned business specializing in engineering, IT, training, and logistics, ensuring mission success through specialized expertise and…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Vencore INCperspecta.com HQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 495 contacts → |
“As of June 1, 2018, we are Perspecta.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | J&j Worldwide Servicescbregds.com HQ: Mclean, VA, United StatesReported employees: 10001+ | Mclean, VA, United States | 10001+ | Exact match | 451 contacts → |
“J&J Worldwide Services is now CBRE Government & Defense Services.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Zenetexzenetex.com HQ: Herndon, VA, United StatesReported employees: 1,001-5,000 | Herndon, VA, United States | 1,001-5,000 | Exact match | 438 contacts → |
“Zenetex, pronounced zə-`net-iks, specializes in management and technology support services.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Phoenix Defense, LLCphx-defense.com HQ: Gilbert, AZ, United StatesReported employees: 501-1,000 | Gilbert, AZ, United States | 501-1,000 | Exact match | 396 contacts → |
“Phoenix Defense, LLC and its affiliated companies are agile providers of engineering, manufacturing, information technology, and logistics & supply chain services to the defense…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Dayton, OH, United StatesReported employees: 1,001-5,000 | Dayton, OH, United States | 1,001-5,000 | Exact match | 383 contacts → |
“For 39 years, MacAulay-Brown, Inc.(MacB), an Alion Company, has been solving many of the Nation’s most complex National Security challenges.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Client Solution Architectscsaassociates.com HQ: Virginia Beach, VA, United StatesReported employees: 501-1,000 | Virginia Beach, VA, United States | 501-1,000 | Exact match | 381 contacts → |
“Client Solution Architects (CSA) is a global provider of integrated technology and operational support services to defense and federal government organizations.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Culmen Internationalculmen.com HQ: Alexandria, VA, United StatesReported employees: 201-500 | Alexandria, VA, United States | 201-500 | Exact match | 340 contacts → |
“Established in 2004, Culmen International, LLC is a privately held U.S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 351 company matches
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Defense contracting companies: dataset insights
October 11, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
351 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 351 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 11, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for defense contracting companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many defense contracting companies did RevenueBase find based in the United States?
The saved snapshot records 351 matching company records, 147,785 tracked contacts and 12,880 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 11, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 defense contracting companies based in the United States. Snapshot: October 11, 2026. https://revenuebase.ai/companies/defense-contracting-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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