| # | Company | Employees |
|---|---|---|
| 1 |
General Atomicsga.com
Development of advanced technology solutions including unmanned aerial vehicles, research reactors, aircraft systems, MagLev transport, and fusion energy for global customers. |
11,213 |
| 2 |
NAVWARnavwar.navy.mil
This company specializes in providing information warfare capabilities and services to support naval, joint, coalition, and national missions |
3,228 |
| 3 | 3,123 | |
| 4 |
Cubic Corporationcubic.com
The company creates technology solutions in transportation to simplify daily journeys and defense capabilities to promote mission success and safety |
3,095 |
| 5 |
Kratos Defense and Security Solutionskratosdefense.com
National security technologies spanning unmanned systems, hypersonics, satellite communications, cyber defense, and propulsion systems for rapid deployment to support various military domain missions. |
2,950 |
| 6 |
General Dynamics NASSCOjobs.nassco.com
A shipbuilding company with locations on the West and East Coasts specializing in ships for the US Navy and commercial markets, also providing repair services |
1,845 |
| 7 | 1,569 | |
| 8 |
All Starall-star.com
A privately owned firm specializing in aerospace support, facilities maintenance, military housing, logistics, construction, and fleet maintenance for military, government, and commercial contracts |
1,501 |
| 9 |
Naval Information Warfare Center Pacificniwcpacific.navy.mil
A technological support center for the US military branches, specializing in information warfare, cyber domain, autonomous unmanned systems, and communication technologies |
1,266 |
| 10 |
Epsilon Systems Solutions, Inc.epsilonsystems.com
A diversified professional services company serving defense and commercial customers worldwide, specializing in ship modernization, technical solutions, and mission readiness support |
686 |
| 11 |
Fleet Readiness Center Southwestnavair.navy.mil
Premier maintenance organization in the Department of Defense, specializing in aircraft and ship engine repair to support the Marines and Navy |
547 |
| 12 |
Cubic Defensecubic.com
This company delivers technology-driven solutions for C5ISR and training customers worldwide, specializing in C4ISR solutions for all-domain operations and advanced training innovations |
486 |
| 13 |
Southwest Regional Maintenance Centernavsea.navy.mil
A dynamic force delivering safe, cost-effective, and innovative solutions to maintain and modernize ships for the United States Navy |
465 |
| 14 |
Tapestry Solutionstapestrysolutions.com
Global provider of information management software and services for defense, government, and commercial customers, specializing in solving logistics challenges and enhancing mission readiness for military forces worldwide |
442 |
| 15 |
INDUS Technology, Inc.industechnology.com
Provider of C4I capabilities and support services to the Federal government and industry, including engineering, IT, logistics, program management, and financial management ISO 9001:2008 certified |
439 |
| 16 |
ATA Engineeringata-e.com
Innovative engineering solutions using test, analysis, and computer-aided engineering to address manufacturers' challenges in aerospace, mechanical, and other industries |
240 |
| 17 |
InnovaSystems International, LLCwebsite-redirect.cydecor.com
Developing innovative software solutions supporting national security strategy by optimizing data sources, reducing costs, and providing premier customer service |
222 |
| 18 |
Rock West Compositesrockwestcomposites.com
Designs, engineers, and manufactures quality composite products using various techniques, ensuring superior value and customer satisfaction with experienced personnel. |
209 |
| 19 |
Affordable Engineering Servicesaffordservices.com
A premier defense contractor providing high-quality engineering and aviation maintenance services to support warfighter-readiness and military missions worldwide |
209 |
| 20 |
Innoflightinnoflight.com
A non-traditional defense contractor specializing in secure C4 design, offering compact radios, avionics systems, and data storage solutions for government and commercial clients |
172 |
| 21 |
Quartus Engineeringquartus.com
Multi-disciplinary team delivering high precision, reliable engineered solutions in analysis, testing, metrology, robotics, and optical systems across industries. |
159 |
| 22 |
Beam Globalbeamforall.com
Clean technology innovator specializing in sustainable infrastructure products, EV charging solutions, energy storage, and energy security to power transportation and protect the environment |
97 |
| 23 |
Space Micro โ Powered by Voyager Spacespacemicro.com
An engineering-driven supplier of radiation-hardened communications, electro-optics, and digital systems for commercial, civil, and military space applications worldwide Based in San Diego, CA |
84 |
| 24 |
Nikkiso America, Inc.nikkisoamerica.com
The company provides innovative technologies and products globally, focusing on aerospace, industrial, medical, and precision equipment divisions to meet customer demands |
65 |
| 25 |
5th Axis Inc.fifthaxis.com
A world leader in automated production, manufacturing, and machining, providing turnkey solutions for product development, assembly, finishing, and logistics with expert mechanical engineering |
61 |
| 26 |
Presidio Components, Inc.presidiocomponents.com
Designs and manufactures ceramic capacitors for demanding applications including space, military, high-temperature, RF, and custom commercial electronics. |
56 |
| 27 |
Hi-Tech Electronic Manufacturing Corporation (HiTEM)hitem.com
Provider of Contract Manufacturing and Electronic Manufacturing Services to OEMs in military, aerospace, telecommunications, medical, and industrial markets |
30 |
| 28 |
USS Santa Fe (SSN 763)en.wikipedia.org
A submarine company based in San Diego, CA, with an improved Los Angeles-class submarine commissioned in 1994 and named after Santa Fe, New Mexico |
5 |
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 2, 2026.
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The same list elsewhere in United States
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