Company lists · Data refreshed October 2026
Top 25 Cleared defense contractors based in the United States
RevenueBase identified 1,020 company matches for cleared defense contractors associated with the United States as of October 2026 and tracks 365,621 professional contacts across them, including 32,272 with verified work emails. Huntsville is the largest hub.
This list covers company matches for cleared defense contractors 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 9, 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 cleared defense contractors 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 9, 2026 · View company records in RevenueBase | |||||
| 2 | 44,552 contacts → | ||||
Exact match “Raytheon, an RTX business, creates next-generation defense solutions that are smarter, faster and better than previously thought possible.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 3 | 25,850 contacts → | ||||
Exact match “L3Harris Technologies is the Trusted Disruptor in the defense industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 4 | 24,883 contacts → | ||||
Exact match “GDIT is a global technology and professional services company that delivers solutions, technology and mission services to every major agency across the U.S.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 5 | 20,226 contacts → | ||||
Exact match “Founded in 1944, Parsons Corporation, a digitally enabled solutions provider, is focused on creating the future of the defense, intelligence, and critical infrastructure markets.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 6 | 19,890 contacts → | ||||
Exact match “At CACI International Inc (NYSE: CACI), our talented and dynamic employees are ever vigilant in delivering distinctive expertise and technology to meet our customers’ greatest…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 7 | 13,705 contacts → | ||||
Exact match “Improving the future and protecting lives is an ambitious mission, but it’s what we do.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 8 | 11,065 contacts → | ||||
Exact match “DynCorp International is now part of Amentum.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 9 | 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 9, 2026 · View company records in RevenueBase | |||||
| 10 | 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 9, 2026 · View company records in RevenueBase | |||||
| 11 | 6,372 contacts → | ||||
Exact match “Leonardo DRS Inc.(Nasdaq: DRS) is at the forefront of developing transformative defense technologies using its proven agility and delivering innovative solutions for U.S.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 12 | 4,577 contacts → | ||||
Exact match “ASRC Federal’s employees provide solutions for more than 30 U.S.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 13 | 3,599 contacts → | ||||
Exact match “Since 1955, PAE has been a critical partner of the U.S.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 14 | 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 9, 2026 · View company records in RevenueBase | |||||
| 15 | 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 9, 2026 · View company records in RevenueBase | |||||
| 16 | 2,015 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 17 | 1,982 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 18 | 1,919 contacts → | ||||
Exact match “DCS delivers advanced technology and management solutions to Government agencies in the national security sector.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 19 | 1,912 contacts → | ||||
Exact match “As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 20 | 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 9, 2026 · View company records in RevenueBase | |||||
| 21 | 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 9, 2026 · View company records in RevenueBase | |||||
| 22 | 1,525 contacts → | ||||
Exact match “At Intrepid Global Solutions, we lead the way in mission-critical support where others can’t.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 23 | 1,326 contacts → | ||||
Exact match “COLSA Corporation is an engineering and support services company founded in 1980.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 24 | 1,309 contacts → | ||||
Exact match “Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 25 | 1,293 contacts → | ||||
Exact match “Founded in October 2002, Torch is a 100% employee-owned business headquartered in Huntsville, Alabama.” Recorded in the RevenueBase company graph · Oct 9, 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 “cleared defense contractors”. 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 1,020 cleared defense contractors based in the United States
See the full list, filter by size, metro and specialty, and access 32,272 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cleared defense contractors based in the United States at a glance
As of Oct 9, 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 1,020 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 “cleared defense contractors” 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 32,272 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 9, 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.
Cleared defense contractors by metro
- Cleared defense contractors in Huntsville43
- Cleared defense contractors in Reston39
- Cleared defense contractors in Chantilly36
- Cleared defense contractors in Arlington34
- Cleared defense contractors in Mclean33
- Cleared defense contractors in Washington33
- Cleared defense contractors in Alexandria30
- Cleared defense contractors in Herndon29
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 “cleared defense contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cleared defense contractors are there based in the United States?
RevenueBase identified 1,020 company matches for cleared defense contractors 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 cleared defense contractors?
Huntsville leads with 43 company records, followed by Reston (39) and Chantilly (36).
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 32,272 professional contacts with verified work emails tracked across these 1,020 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 9, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,020 cleared defense contractors based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Cleared defense contractors by geography
- Cleared defense contractors based in Alexandria, United States
- Cleared defense contractors based in Arlington, United States
- Cleared defense contractors based in Chantilly, United States
- Cleared defense contractors based in Herndon, United States
- Cleared defense contractors based in Huntsville, United States
- Cleared defense contractors based in Mclean, United States
- Cleared defense contractors based in Reston, United States
- Cleared defense contractors based in Washington, United States
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cleared defense contractors based in Alexandria, United States
- Cleared defense contractors based in Arlington, United States
- Cleared defense contractors based in Chantilly, United States
- Cleared defense contractors based in Herndon, United States
- Cleared defense contractors based in Huntsville, United States
- Cleared defense contractors based in Mclean, United States
Company intelligence · public preview
Top 25 cleared defense contractors 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 1,020 matching company records for cleared defense contractors based in the United States, with 365,621 tracked contacts and 32,272 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 9, 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 cleared defense contractors 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Raytheonrtx.comHQ: Arlington, VA, United StatesReported employees: 10001+ | Arlington, VA, United States | 10001+ | Exact match | 44,552 contacts → |
“Raytheon, an RTX business, creates next-generation defense solutions that are smarter, faster and better than previously thought possible.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  L3harris Technologiesl3harris.comHQ: Melbourne, FL, United StatesReported employees: 10001+ | Melbourne, FL, United States | 10001+ | Exact match | 25,850 contacts → |
“L3Harris Technologies is the Trusted Disruptor in the defense industry.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 24,883 contacts → |
“GDIT is a global technology and professional services company that delivers solutions, technology and mission services to every major agency across the U.S.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Parsons Corporationparsons.comHQ: Chantilly, VA, United StatesReported employees: 10001+ | Chantilly, VA, United States | 10001+ | Exact match | 20,226 contacts → |
“Founded in 1944, Parsons Corporation, a digitally enabled solutions provider, is focused on creating the future of the defense, intelligence, and critical infrastructure markets.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Caci International INCcaci.comHQ: Reston, VA, United StatesReported employees: 10001+ | Reston, VA, United States | 10001+ | Exact match | 19,890 contacts → |
“At CACI International Inc (NYSE: CACI), our talented and dynamic employees are ever vigilant in delivering distinctive expertise and technology to meet our customers’ greatest…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  BAE Systems, INCbaesystems.comHQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 13,705 contacts → |
“Improving the future and protecting lives is an ambitious mission, but it’s what we do.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Leonardo DRSleonardodrs.comHQ: Arlington, VA, United StatesReported employees: 5,001-10,000 | Arlington, VA, United States | 5,001-10,000 | Exact match | 6,372 contacts → |
“Leonardo DRS Inc.(Nasdaq: DRS) is at the forefront of developing transformative defense technologies using its proven agility and delivering innovative solutions for U.S.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  PAEamentum.comHQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 3,599 contacts → |
“Since 1955, PAE has been a critical partner of the U.S.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Modern Technology Solutions, Inc. Mtsimtsi-va.comHQ: Alexandria, VA, United StatesReported employees: 1,001-5,000 | Alexandria, VA, United States | 1,001-5,000 | Exact match | 2,015 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  American Systemsamericansystems.comHQ: Mclean, VA, United StatesReported employees: 1,001-5,000 | Mclean, VA, United States | 1,001-5,000 | Exact match | 1,982 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  DCS Corpdcscorp.comHQ: Alexandria, VA, United StatesReported employees: 1,001-5,000 | Alexandria, VA, United States | 1,001-5,000 | Exact match | 1,919 contacts → |
“DCS delivers advanced technology and management solutions to Government agencies in the national security sector.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Chenega Corporationchenega.comHQ: Anchorage, AK, United StatesReported employees: 5,001-10,000 | Anchorage, AK, United States | 5,001-10,000 | Exact match | 1,912 contacts → |
“As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Intrepidgsintrepidgs.comHQ: Cape Canaveral, FL, United StatesReported employees: 1,001-5,000 | Cape Canaveral, FL, United States | 1,001-5,000 | Exact match | 1,525 contacts → |
“At Intrepid Global Solutions, we lead the way in mission-critical support where others can’t.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  COLSAcolsa.comHQ: Huntsville, AL, United StatesReported employees: 1,001-5,000 | Huntsville, AL, United States | 1,001-5,000 | Exact match | 1,326 contacts → |
“COLSA Corporation is an engineering and support services company founded in 1980.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Engility Corporationsaic.comHQ: Reston, VA, United StatesReported employees: 5,001-10,000 | Reston, VA, United States | 5,001-10,000 | Exact match | 1,309 contacts → |
“Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Torch Technologies, INCtorchtechnologies.com HQ: Huntsville, AL, United StatesReported employees: 501-1,000 | Huntsville, AL, United States | 501-1,000 | Exact match | 1,293 contacts → |
“Founded in October 2002, Torch is a 100% employee-owned business headquartered in Huntsville, Alabama.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,020 company matches
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Cleared defense contractors: dataset insights
October 9, 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
1,020 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 1,020 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 9, 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 ↗
Cleared defense contractors by metro
- Cleared defense contractors in Huntsville43
- Cleared defense contractors in Reston39
- Cleared defense contractors in Chantilly36
- Cleared defense contractors in Arlington34
- Cleared defense contractors in Mclean33
- Cleared defense contractors in Washington33
- Cleared defense contractors in Alexandria30
- Cleared defense contractors in Herndon29
Questions about this company list
What does Exact match mean for cleared defense contractors?
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 cleared defense contractors did RevenueBase find based in the United States?
The saved snapshot records 1,020 matching company records, 365,621 tracked contacts and 32,272 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 9, 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
Cleared defense contractors by geography
- Cleared defense contractors based in Alexandria, United States
- Cleared defense contractors based in Arlington, United States
- Cleared defense contractors based in Chantilly, United States
- Cleared defense contractors based in Herndon, United States
- Cleared defense contractors based in Huntsville, United States
- Cleared defense contractors based in Mclean, United States
- Cleared defense contractors based in Reston, United States
- Cleared defense contractors based in Washington, United States
Cite this list
RevenueBase Data Team. Top 25 cleared defense contractors based in the United States. Snapshot: October 9, 2026. https://revenuebase.ai/companies/cleared-defense-contractors/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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cleared defense contractors based in Alexandria, United States
- Cleared defense contractors based in Arlington, United States
- Cleared defense contractors based in Chantilly, United States
- Cleared defense contractors based in Herndon, United States
- Cleared defense contractors based in Huntsville, United States
- Cleared defense contractors based in Mclean, United States
Company intelligence · public preview
Top 25 cleared defense contractors based in the United States
RevenueBase records 1,020 matching company records for cleared defense contractors based in the United States, with 365,621 tracked contacts and 32,272 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 9, 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 cleared defense contractors 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Raytheonrtx.com HQ: Arlington, VA, United StatesReported employees: 10001+ | Arlington, VA, United States | 10001+ | Exact match | 44,552 contacts → |
“Raytheon, an RTX business, creates next-generation defense solutions that are smarter, faster and better than previously thought possible.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | L3harris Technologiesl3harris.com HQ: Melbourne, FL, United StatesReported employees: 10001+ | Melbourne, FL, United States | 10001+ | Exact match | 25,850 contacts → |
“L3Harris Technologies is the Trusted Disruptor in the defense industry.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 24,883 contacts → |
“GDIT is a global technology and professional services company that delivers solutions, technology and mission services to every major agency across the U.S.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Parsons Corporationparsons.com HQ: Chantilly, VA, United StatesReported employees: 10001+ | Chantilly, VA, United States | 10001+ | Exact match | 20,226 contacts → |
“Founded in 1944, Parsons Corporation, a digitally enabled solutions provider, is focused on creating the future of the defense, intelligence, and critical infrastructure markets.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Caci International INCcaci.com HQ: Reston, VA, United StatesReported employees: 10001+ | Reston, VA, United States | 10001+ | Exact match | 19,890 contacts → |
“At CACI International Inc (NYSE: CACI), our talented and dynamic employees are ever vigilant in delivering distinctive expertise and technology to meet our customers’ greatest…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | BAE Systems, INCbaesystems.com HQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 13,705 contacts → |
“Improving the future and protecting lives is an ambitious mission, but it’s what we do.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Leonardo DRSleonardodrs.com HQ: Arlington, VA, United StatesReported employees: 5,001-10,000 | Arlington, VA, United States | 5,001-10,000 | Exact match | 6,372 contacts → |
“Leonardo DRS Inc.(Nasdaq: DRS) is at the forefront of developing transformative defense technologies using its proven agility and delivering innovative solutions for U.S.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | PAEamentum.com HQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 3,599 contacts → |
“Since 1955, PAE has been a critical partner of the U.S.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Modern Technology Solutions, Inc. Mtsimtsi-va.com HQ: Alexandria, VA, United StatesReported employees: 1,001-5,000 | Alexandria, VA, United States | 1,001-5,000 | Exact match | 2,015 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | American Systemsamericansystems.com HQ: Mclean, VA, United StatesReported employees: 1,001-5,000 | Mclean, VA, United States | 1,001-5,000 | Exact match | 1,982 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | DCS Corpdcscorp.com HQ: Alexandria, VA, United StatesReported employees: 1,001-5,000 | Alexandria, VA, United States | 1,001-5,000 | Exact match | 1,919 contacts → |
“DCS delivers advanced technology and management solutions to Government agencies in the national security sector.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Chenega Corporationchenega.com HQ: Anchorage, AK, United StatesReported employees: 5,001-10,000 | Anchorage, AK, United States | 5,001-10,000 | Exact match | 1,912 contacts → |
“As the most successful Alaska Native village corporation, Chenega figures prominently in the diverse government services contracting marketplace supporting defense, intelligence…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Intrepidgsintrepidgs.com HQ: Cape Canaveral, FL, United StatesReported employees: 1,001-5,000 | Cape Canaveral, FL, United States | 1,001-5,000 | Exact match | 1,525 contacts → |
“At Intrepid Global Solutions, we lead the way in mission-critical support where others can’t.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | COLSAcolsa.com HQ: Huntsville, AL, United StatesReported employees: 1,001-5,000 | Huntsville, AL, United States | 1,001-5,000 | Exact match | 1,326 contacts → |
“COLSA Corporation is an engineering and support services company founded in 1980.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Engility Corporationsaic.com HQ: Reston, VA, United StatesReported employees: 5,001-10,000 | Reston, VA, United States | 5,001-10,000 | Exact match | 1,309 contacts → |
“Engility Corporation is now part of SAIC, a premier technology integrator based in Reston, Virginia.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Torch Technologies, INCtorchtechnologies.com HQ: Huntsville, AL, United StatesReported employees: 501-1,000 | Huntsville, AL, United States | 501-1,000 | Exact match | 1,293 contacts → |
“Founded in October 2002, Torch is a 100% employee-owned business headquartered in Huntsville, Alabama.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,020 company matches
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Cleared defense contractors: dataset insights
October 9, 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
1,020 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 1,020 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 9, 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 ↗
Cleared defense contractors by metro
- Cleared defense contractors in Huntsville43
- Cleared defense contractors in Reston39
- Cleared defense contractors in Chantilly36
- Cleared defense contractors in Arlington34
- Cleared defense contractors in Mclean33
- Cleared defense contractors in Washington33
- Cleared defense contractors in Alexandria30
- Cleared defense contractors in Herndon29
Questions about this company list
What does Exact match mean for cleared defense contractors?
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 cleared defense contractors did RevenueBase find based in the United States?
The saved snapshot records 1,020 matching company records, 365,621 tracked contacts and 32,272 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 9, 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
Cleared defense contractors by geography
- Cleared defense contractors based in Alexandria, United States
- Cleared defense contractors based in Arlington, United States
- Cleared defense contractors based in Chantilly, United States
- Cleared defense contractors based in Herndon, United States
- Cleared defense contractors based in Huntsville, United States
- Cleared defense contractors based in Mclean, United States
- Cleared defense contractors based in Reston, United States
- Cleared defense contractors based in Washington, United States
Cite this list
RevenueBase Data Team. Top 25 cleared defense contractors based in the United States. Snapshot: October 9, 2026. https://revenuebase.ai/companies/cleared-defense-contractors/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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- Cleared defense contractors based in Alexandria, United States
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- Cleared defense contractors based in Mclean, United States