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Aerospace and defence companies headquartered in Arlington

Tamtam tracks 35 aerospace and defence companies headquartered in Arlington. This list ranks all of them by number of employees on LinkedIn, led by US Army, RTX and Boeing. Their median headcount is 633. Half of them were founded in 1971 or later.

๐Ÿ‡บ๐Ÿ‡ธ Arlington35 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
US Armyusarmybasic.com

Providing prompt, sustained land dominance across full military operations spectrum, supporting combatant commanders in national defense and warfare.

Armed Forces ๐Ÿ‡บ๐Ÿ‡ธ Arlington 367,627 1775
2
RTXrtx.com

Aerospace and defense operations through three business units focused on solving complex problems within aviation, space systems, and military technology sectors worldwide.

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 139,657 n/a
3
Boeingboeing.com

A global aerospace leader providing commercial airplanes, defense, space systems, and services, focused on innovation, customer delivery, and employee growth

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 129,130 1916
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

Armed Forces ๐Ÿ‡บ๐Ÿ‡ธ Arlington 59,575 1636
5
Raytheonrtx.com

Develops integrated air and missile defense, advanced sensors, space-based systems, hypersonics, and cyber solutions to provide next-generation protection and high-performance military effectors.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 48,589 1922
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

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Arlington 9,719 n/a
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.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 6,551 1969
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

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Arlington 6,218 1947
9
TSCtsc.com

An employee-owned high-tech company providing engineering services and specialized products to US Government agencies and private industry, supporting system life cycle from concept development to operations

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 2,526 1966
10
AVavinc.com

Innovative solutions provider specializing in unmanned systems and high-altitude pseudo-satellites, empowering military and commercial customers with actionable intelligence for smarter decisions

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 2,466 1971
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

Armed Forces ๐Ÿ‡บ๐Ÿ‡ธ Arlington 2,131 1636
12
CNA Corporationcna.org

A nonprofit research organization focused on national security, providing actionable solutions to complex problems through data analysis and field programs

Research Services ๐Ÿ‡บ๐Ÿ‡ธ Arlington 2,094 1942
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

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Arlington 1,240 2002
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

Armed Forces ๐Ÿ‡บ๐Ÿ‡ธ Arlington 1,168 n/a
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.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 1,033 1958
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

Mechanical Or Industrial Engineering ๐Ÿ‡บ๐Ÿ‡ธ Arlington 699 1868
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

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Arlington 670 2021
18
ANSERanser.org

A public service research institute providing objective analysis in national security, homeland security, and public policy, specializing in technology development collaborations

Business Consulting and Services ๐Ÿ‡บ๐Ÿ‡ธ Arlington 633 1958
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

Shipbuilding ๐Ÿ‡บ๐Ÿ‡ธ Arlington 628 1916
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

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Arlington 599 2019
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

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 575 2019
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

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 566 2006
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.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 471 n/a
24
Goviniair.ai

Creates AI-native platforms closing the Readiness Gap, aligning development, production, delivery, and sustainment into one coordinated execution system for national security.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Arlington 382 2011
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

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 326 2019
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

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 248 2002
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

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Arlington 242 n/a
28
Umbralinktr.ee

Develops advanced space systems providing high-fidelity Earth observation data for monitoring land use, climate change, and various analytical needs, aiding data-driven decisions.

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 240 2015
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

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 228 1975
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

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 119 n/a
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

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 102 1966
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

Industrial Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 37 2004
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

Aviation and Aerospace Component Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 30 1996
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

Defense and Space Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 19 n/a
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

Appliances, Electrical, and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Arlington 6 2006

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How this list is built

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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