| # | Company | Employees |
|---|---|---|
| 1 |
US Armyusarmybasic.com
Providing prompt, sustained land dominance across full military operations spectrum, supporting combatant commanders in national defense and warfare. |
367,627 |
| 2 | 139,657 | |
| 3 |
Boeingboeing.com
A global aerospace leader providing commercial airplanes, defense, space systems, and services, focused on innovation, customer delivery, and employee growth |
129,130 |
| 4 |
Army National Guardnationalguard.com
This organization is a component of the Army, providing National Guard Soldiers who serve in various missions both domestically and overseas |
59,575 |
| 5 | 48,589 | |
| 6 |
Accenture Federal Servicesaccenture.com
The company brings advanced R&D, latest technologies, and human-centered design to the federal government to create lasting value and drive positive change |
9,719 |
| 7 |
Leonardo DRSleonardodrs.com
Providing advanced sensing, network computing, force protection, and electric power propulsion technologies to global national security customers through practical, high-performance defense innovation. |
6,551 |
| 8 |
United States Department of the Armyarmy.mil
The Department of the Army is a federal government agency within the Department of Defense responsible for organizing and leading the United States Army |
6,218 |
| 9 | 2,526 | |
| 10 | 2,466 | |
| 11 |
National Guard Bureaunationalguard.mil
The National Guard Bureau oversees the Army National Guard and Air Guard, providing national-level guidance and support to all states and territories |
2,131 |
| 12 |
CNA Corporationcna.org
A nonprofit research organization focused on national security, providing actionable solutions to complex problems through data analysis and field programs |
2,094 |
| 13 |
SETsetcorp.com
A small business founded by DARPA scientists in 2002, specializing in creating and commercializing innovative "smart" information technologies for defense and intelligence clients |
1,240 |
| 14 |
U.S. Army and Army National Guardarmy.mil
Company specializing in providing LinkedIn position descriptions tailored for members and veterans of the US Army and Army National Guard |
1,168 |
| 15 |
Defense Advanced Research Projects Agency (DARPA)darpa.mil
Develops transformational defense and national security capabilities through academic, industrial, and government partnerships to create technological breakthroughs like precision weaponry and internet-scale civilian innovations. |
1,033 |
| 16 |
Tata Group - North Americatata.com
Global business group with diverse operations including IT services, consulting, steel production, luxury hotels, automotive engineering, mining, consumer brands, and philanthropic activities |
699 |
| 17 |
Two Six Technologiestwosixtech.com
Innovative company specializing in cyber, information operations, data science, electronic systems, and more to solve complex global challenges for various government agencies |
670 |
| 18 | 633 | |
| 19 |
Trident Maritime Systemstridentllc.com
Global team of maritime professionals providing engineered solutions in marine interiors, distributed ship systems, automation, and environmental solutions for various ship markets worldwide |
628 |
| 20 |
Core4cecore4ce.com
Mission-oriented company serving national security community by building, modernizing, and defending digital infrastructure with expertise in cyber operations, modernization, engineering, and analysis |
599 |
| 21 |
BlueHalo, an AV companybluehalo.com
BlueHalo is a leading provider of cutting-edge defense solutions in Space, C-UAS, Autonomous Systems, Electronic Warfare & Cyber, and AI/ML |
575 |
| 22 |
IDS Internationalidsinternational.com
A global leader offering comprehensive Training & Technical Services for government projects, including security, infrastructure protection, expeditionary support, specialized training, and cyber warfare solutions |
566 |
| 23 |
Safran Defense & Space, Inc.safran-dsi.com
Design and manufacture advanced technologies and solutions for defense and space applications, supporting military and aerospace sectors. |
471 |
| 24 | 382 | |
| 25 |
Airbus US Space & Defense, Inc.airbusus.com
A trusted US government partner providing industry-leading technologies for satellite, geospatial intelligence, cyber capabilities, military helicopters, unmanned aerial systems, and more |
326 |
| 26 |
Falconwood, Incorporatedfalconwood.biz
A small, woman-owned business offering executive consultants and program support for Department of Defense IT initiatives, specializing in acquisition strategy and Information Assurance |
248 |
| 27 |
Figure Eight Federalf8federal.com
A company specializing in training various data types to create high-quality AI for Federal initiatives in defense, health, finance, agriculture, and science |
242 |
| 28 | 240 | |
| 29 |
AEgis, a BlueHalo Companybluehalo.com
Specializing in Space Superiority, Directed Energy, Missile Defense, C4ISR, Cyber, and Intelligence solutions, this company provides industry-leading mission capabilities |
228 |
| 30 |
SELEX Galileo Inc.leonardo.us
A US subsidiary of the Leonardo group specializing in high-tech aerospace and defense solutions, offering mission critical systems and support services |
119 |
| 31 |
A.E. Petschearrow.com
Leading supplier of high-performance interconnect products for various industries, with a focus on innovation and anticipating customer needs Five Years Out |
102 |
| 32 |
Cobalt Enterprises, LLCcobaltent.com
A dynamic company manufacturing precision machined parts and assemblies for aerospace, defense, and commercial industries, with a focus on quality and customer service |
37 |
| 33 |
Senior Aerospace Absolute Manufacturing
A precision manufacturer offering complex machining solutions, assembly services, and design engineering, backed by financial strength and a culture of continuous improvement |
30 |
| 34 |
MBDA Missile Systems Inc (USA)mbdainc.com
A company located in Arlington, Virginia, specializing in a particular field or industry, focused on providing quality products or services |
19 |
| 35 |
SYNEXXUS Incsynexxus.com
CMMI Level 3 Certified electronics design and manufacturing company specializing in data distribution and C4ISR systems for defense and industrial markets |
6 |
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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 Oct 24, 2026.
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The same list elsewhere in United States
- Aerospace and defence companies in the United States 1,357
- Aerospace and defence companies in California 200
- Aerospace and defence companies in Virginia 155
- Aerospace and defence companies in Texas 74
- Aerospace and defence companies in Alabama 66
- Aerospace and defence companies in Pennsylvania 61
- Aerospace and defence companies in Florida 60
- Aerospace and defence companies in New York State 52
- Aerospace and defence companies in Ohio 51
- Aerospace and defence companies in Maryland 46
- Aerospace and defence companies in Colorado 44
- Aerospace and defence companies in Massachusetts 42
- Aerospace and defence companies in Michigan 41
- Aerospace and defence companies in Washington State 41
- Aerospace and defence companies in Connecticut 39
- Aerospace and defence companies in Illinois 33
- Aerospace and defence companies in New Jersey 26
- Aerospace and defence companies in Minnesota 25