# Top 50 Armed Forces companies in the United States

Tamtam tracks 223 Armed Forces companies headquartered in the United States. This list ranks the 50 largest by number of employees on LinkedIn, led by US Army, US Navy and United States Marine Corps. Their median headcount is 2,196. Half of them were founded in 1917 or later. The most common headquarters are Washington (9) and Arlington (4).

These companies in the United States operate within the Armed Forces sector, encompassing various branches of the military and related support organizations. They are predominantly large government entities responsible for national defense and security. Among them are the US Army, providing land dominance; the US Navy, protecting America at sea; the United States Marine Corps, offering rapid deployment capabilities; and the United States Department of War, which supplies military forces.

The data shows a strong concentration of headquarters in the Washington D.C. area, including Washington and Arlington, indicating a central hub for military command and strategic operations. The founding dates of these organizations span several centuries, with the Army National Guard established in 1636 and the US Army in 1775, alongside more recent entities like the United States Department of War, founded in 1949.

🇺🇸 United States · 50 companies · Updated Nov 15, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [US Army](https://www.tamtam.ai/c/us-army) (usarmybasic.com)<br>Providing prompt, sustained land dominance across full military operations spectrum, supporting combatant commanders in national defense and warfare. | Armed Forces | 🇺🇸 Arlington | 367,627 | 1775 |
| 2 | [US Navy](https://www.tamtam.ai/c/us-navy) (navy.mil)<br>This company is responsible for protecting America at sea, defending freedom, preserving prosperity, and keeping the seas open and free | Armed Forces | 🇺🇸 Washington | 150,748 |  |
| 3 | [United States Marine Corps](https://www.tamtam.ai/c/united-states-marine-corps) (marines.mil)<br>Provides rapid deployment of combined-arms task forces using naval mobility for power projection on land, sea, and air. | Armed Forces | 🇺🇸 Washington | 78,275 |  |
| 4 | [United States Department of War](https://www.tamtam.ai/c/united-states-department-of-war) (war.gov)<br>A government department providing military forces to defend the country, deter adversaries, and work with allies for national security | Armed Forces | 🇺🇸 Washington | 68,533 | 1949 |
| 5 | [Army National Guard](https://www.tamtam.ai/c/army-national-guard) (nationalguard.com)<br>This organization is a component of the Army, providing National Guard Soldiers who serve in various missions both domestically and overseas | Armed Forces | 🇺🇸 Arlington | 59,575 | 1636 |
| 6 | [Marine Corps Recruiting](https://www.tamtam.ai/c/marine-corps-recruiting) (rmi.marines.com)<br>This organization focuses on recruiting individuals to become Marines, emphasizing leadership, values, and physical fitness, aiming to develop quality citizens | Armed Forces | 🇺🇸 Washington | 40,191 | 1775 |
| 7 | [U.S. Coast Guard](https://www.tamtam.ai/c/u-s-coast-guard) (uscg.mil)<br>Protect public safety, environment, and economic interests along coasts, ports, waterways, and international waters supporting national security. | Armed Forces | 🇺🇸 Washington | 32,193 | 1790 |
| 8 | [US Army Corps of Engineers](https://www.tamtam.ai/c/us-army-corps-of-engineers) (usace.army.mil)<br>Provides public engineering services to enhance national security, boost the economy, and mitigate disaster risks through innovative and sustainable solutions | Armed Forces | 🇺🇸 Washington | 26,566 | 1776 |
| 9 | [United States Army Reserve](https://www.tamtam.ai/c/united-states-army-reserve) (usar.army.mil)<br>The US Army Reserve provides trained Soldiers and units with critical combat support capabilities to support national strategy during peacetime, contingencies, and war | Armed Forces | 🇺🇸 Fort Liberty | 25,976 | 1908 |
| 10 | [U.S. Air Force Reserve](https://www.tamtam.ai/c/u-s-air-force-reserve) (airforce.com)<br>Supports US air defense and military missions, leveraging reservists' civilian skills and expertise for critical operations and training globally, alongside active-duty members. | Armed Forces | 🇺🇸 Robins AFB | 19,030 | 1948 |
| 11 | [Royal Navy](https://www.tamtam.ai/c/royal-navy) (royalnavy.mod.uk)<br>A multi-faceted military organization with capabilities at sea, on land, and in the air, including ships, submarines, aircraft, and support vessels | Armed Forces | 🇺🇸 Portsmouth | 17,268 | 1546 |
| 12 | [Air National Guard](https://www.tamtam.ai/c/air-national-guard) (airforce.com)<br>Provides part-time military service with high-tech career training, college tuition assistance, and federal benefits while serving in local units near home. | Armed Forces | 🇺🇸 Horsham | 12,937 |  |
| 13 | [U.S. Navy Reserve](https://www.tamtam.ai/c/u-s-navy-reserve) (navyreserve.navy.mil)<br>Delivers real-world capabilities and expertise to support the Navy mission, building a lethal, warfighting culture focused on great power competition. | Armed Forces | 🇺🇸 Norfolk | 12,928 | 1915 |
| 14 | [Defense Logistics Agency](https://www.tamtam.ai/c/defense-logistics-agency) (dla.mil)<br>Management of global defense supply chain including procurement, warehousing, transportation, and disposal of military materials and services. | Armed Forces | 🇺🇸 Fort Belvoir | 10,533 | 1961 |
| 15 | [U.S. Army Network Enterprise Technology Command](https://www.tamtam.ai/c/u-s-army-network-enterprise-technology-command) (netcom.army.mil)<br>Leads global operations for the Army's portion of the DODIN, ensuring freedom of action in cyberspace while denying the same to adversaries. | Armed Forces | 🇺🇸 Ft. Huachuca | 6,482 | 1918 |
| 16 | [United States Department of the Air Force](https://www.tamtam.ai/c/united-states-department-of-the-air-force-washington) (af.mil)<br>A military department of the US Department of Defense that oversees the organization of the United States Air Force and United States Space Force | Armed Forces | 🇺🇸 Washington | 5,392 | 1947 |
| 17 | [Us Army Reserves](https://www.tamtam.ai/c/us-army-reserves-saint-joseph) (usarmy.mil)<br>A military organization operating in St Joseph, MN, United States as part of the Army Reserves, providing defense and support services | Armed Forces | 🇺🇸 St Joseph | 4,119 | 1980 |
| 18 | [U.S. Army TACOM](https://www.tamtam.ai/c/u-s-army-tacom) (tacom.army.mil)<br>A major command of the Army Materiel Command managing the US Army's ground systems and industrial base, focusing on readiness globally | Armed Forces | 🇺🇸 Detroit Arsenal | 3,675 | 1967 |
| 19 | [Defense Intelligence Agency](https://www.tamtam.ai/c/defense-intelligence-agency) (dia.mil)<br>Provides all-source defense intelligence to support warfighters, defense planners, and policymakers in protecting national security interests worldwide. | Armed Forces | 🇺🇸 Washington | 3,416 | 1961 |
| 20 | [Air Force Research Laboratory](https://www.tamtam.ai/c/air-force-research-laboratory) (afresearchlab.com)<br>Leading discovery, development, delivery of warfighting technologies for air, space, cyberspace forces, providing unmatched advantage through research, technology, and strategic partnerships. | Armed Forces | 🇺🇸 Wright-Patterson AFB | 3,085 | 1997 |
| 21 | [Naval Undersea Warfare Center Newport](https://www.tamtam.ai/c/naval-undersea-warfare-center-newport) (navsea.navy.mil)<br>Providing research, development, test, and evaluation of undersea technology for submarines, autonomous systems, and weapon systems to achieve undersea superiority | Armed Forces | 🇺🇸 Newport | 2,818 | 1869 |
| 22 | [U.S. Army Contracting Command](https://www.tamtam.ai/c/u-s-army-contracting-command) (army.mil)<br>This company supports US Army warfighters by acquiring essential equipment, supplies, and services worldwide, ensuring their success in missions and daily life | Armed Forces | 🇺🇸 Redstone Arsenal | 2,709 | 2008 |
| 23 | [Air National Guard Recruiting](https://www.tamtam.ai/c/air-national-guard-recruiting) (airforce.com)<br>This company is part of the Air National Guard, which upholds national security, serves communities, and has locations in all states and territories | Armed Forces | 🇺🇸 Randolph AFB | 2,585 | 1947 |
| 24 | [US Army Reserves](https://www.tamtam.ai/c/us-army-reserves) (goarmy.com)<br>The organization is the reserve force of the United States Army, along with the Army National Guard, forming the Army's reserve component | Armed Forces | 🇺🇸 Fort Bragg | 2,559 | 1908 |
| 25 | [Army ROTC (Official Page)](https://www.tamtam.ai/c/army-rotc-official-page) (armyrotc.army.mil)<br>The company provides leadership and management training for college students through Army ROTC, offering scholarships and commissioning new lieutenants for the Army | Armed Forces | 🇺🇸 Fort Knox | 2,196 | 1916 |
| 26 | [National Guard Bureau](https://www.tamtam.ai/c/national-guard-bureau) (nationalguard.mil)<br>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 | 🇺🇸 Arlington | 2,131 | 1636 |
| 27 | [USSOCOM](https://www.tamtam.ai/c/ussocom) (socom.mil)<br>A unified command within the Department of Defense that prepares Special Operations Forces for assigned missions and conducts special operations when directed | Armed Forces | 🇺🇸 Tampa | 1,938 | 1987 |
| 28 | [The Joint Staff](https://www.tamtam.ai/c/the-joint-staff) (jcs.mil)<br>The company assists the Chairman of the Joint Chiefs of Staff in providing strategic direction and integration of land, naval, and air forces | Armed Forces | 🇺🇸 Washington | 1,688 | 1947 |
| 29 | [Georgia Army National Guard](https://www.tamtam.ai/c/georgia-army-national-guard) (nationalguard.com)<br>A component of The Army, the Georgia Army National Guard offers career opportunities, educational benefits, and service in both community and country | Armed Forces | 🇺🇸 Marietta | 1,687 | 1636 |
| 30 | [Marine Corps Systems Command](https://www.tamtam.ai/c/marine-corps-systems-command) (marcorsyscom.marines.mil)<br>Marine Corps Systems Command equips and sustains Marine forces with ground weapon and IT systems for expeditionary and crisis-response capabilities | Armed Forces | 🇺🇸 Quantico | 1,659 | 1992 |
| 31 | [Army Healthcare](https://www.tamtam.ai/c/army-healthcare) (goarmy.com)<br>Recruiting and training skilled healthcare professionals for the US Army through strategic marketing, relentless recruiting, and cutting-edge training worldwide | Armed Forces | 🇺🇸 Fort Knox | 1,598 | 1776 |
| 32 | [United States Military Academy](https://www.tamtam.ai/c/united-states-military-academy) (westpoint.edu)<br>A prestigious leader development institution that molds cadets intellectually, physically, and ethically to become 2nd Lieutenants in the US Army | Armed Forces | 🇺🇸 West Point | 1,547 | 1802 |
| 33 | [Wisconsin Army National Guard](https://www.tamtam.ai/c/wisconsin-army-national-guard) (ng.wi.gov)<br>The Wisconsin Army National Guard consists of approximately 7,700 soldiers spread throughout 67 communities in Wisconsin, with both federal and state missions | Armed Forces | 🇺🇸 Madison | 1,341 | 1879 |
| 34 | [Naval Air Warfare Center Weapons Division (NAWCWD)](https://www.tamtam.ai/c/naval-air-warfare-center-weapons-division-nawcwd) (navair.navy.mil)<br>A division of Naval Air Systems Command specializing in weapons development for the Department of the Navy in Southern California | Armed Forces | 🇺🇸 China Lake | 1,309 |  |
| 35 | [Marine Forces Reserve](https://www.tamtam.ai/c/marine-forces-reserve) (marforres.marines.mil)<br>This company serves as the headquarters command for the US Marine Corps Reserve, responsible for training and mobilizing Reserve Marines in times of need | Armed Forces | 🇺🇸 New Orleans | 1,256 | 1916 |
| 36 | [Iowa Army National Guard](https://www.tamtam.ai/c/iowa-army-national-guard) (iowanationalguard.com)<br>This military organization in Iowa consists of around 7,000 Soldiers and 2,000 Airmen, serving both the state and the country | Armed Forces | 🇺🇸 Johnston | 1,225 |  |
| 37 | [Naval Surface Warfare Center Dahlgren Division](https://www.tamtam.ai/c/naval-surface-warfare-center-dahlgren-division) (navsea.navy.mil)<br>A leading naval warfare institution specializing in warfare systems development and integration for the military, located in Dahlgren, VA | Armed Forces | 🇺🇸 Dahlgren | 1,218 | 1918 |
| 38 | [U.S. Army and Army National Guard](https://www.tamtam.ai/c/u-s-army-and-army-national-guard) (army.mil)<br>Company specializing in providing LinkedIn position descriptions tailored for members and veterans of the US Army and Army National Guard | Armed Forces | 🇺🇸 Arlington | 1,168 |  |
| 39 | [Michigan Army National Guard](https://www.tamtam.ai/c/michigan-army-national-guard) (nationalguard.com)<br>Recruits and retains individuals for service in the Michigan Army National Guard | Armed Forces | 🇺🇸 Lansing | 1,162 | 1636 |
| 40 | [U.S. Army DEVCOM Army Research Laboratory](https://www.tamtam.ai/c/u-s-army-devcom-army-research-laboratory) (arl.devcom.army.mil)<br>Official page Content shared does not imply endorsement Stay updated on company news and announcements here | Armed Forces | 🇺🇸 Adelphi | 1,134 | 1992 |
| 41 | [Defense Health Agency](https://www.tamtam.ai/c/defense-health-agency) (civilianmedicaljobs.com)<br>Health care professionals, both civilian and military, serve military service members at locations worldwide with unique professional opportunities and benefits | Armed Forces | 🇺🇸 San Antonio | 1,110 |  |
| 42 | [Ohio National Guard - The Adjutant General's Department of Ohio](https://www.tamtam.ai/c/ohio-national-guard-the-adjutant-general-s-department-of-ohio) (linktr.ee)<br>Established in 1788 as a militia, this organization in Ohio has over 16,000 personnel responding to federal, state, and community missions | Armed Forces | 🇺🇸 Columbus | 1,109 | 1788 |
| 43 | [Missouri National Guard](https://www.tamtam.ai/c/missouri-national-guard) (missouriform.com)<br>This organization serves a dual mission, providing support for both the president of the United States and the governor of Missouri They respond to domestic emergencies and are prepared for national security missions | Armed Forces | 🇺🇸 Jefferson City | 1,094 |  |
| 44 | [82nd Airborne Division, U.S. Army](https://www.tamtam.ai/c/82nd-airborne-division-u-s-army) (bragg.army.mil)<br>Elite US Army airborne division specializing in parachute assault operations, known for being highly trained and strategically mobile light infantry | Armed Forces | 🇺🇸 Fort Bragg | 1,074 | 1917 |
| 45 | [North Carolina National Guard](https://www.tamtam.ai/c/north-carolina-national-guard) (ng.nc.gov)<br>A team of nearly 12,000 citizen-Soldiers and -Airmen in North Carolina providing security capabilities around the world and in all 100 counties | Armed Forces | 🇺🇸 Raleigh | 1,057 | 1663 |
| 46 | [Tobyhanna Army Depot](https://www.tamtam.ai/c/tobyhanna-army-depot) (tobyhanna.army.mil)<br>Leader in logistics support for military C5ISR systems, offering sustainment, overhaul, manufacturing, engineering, integration, and field support for the Department of Defense | Armed Forces | 🇺🇸 Tobyhanna | 1,046 | 1953 |
| 47 | [US Army TRADOC](https://www.tamtam.ai/c/us-army-tradoc) (army.mil)<br>Recruits, trains, educates Soldiers, develops leaders, establishes standards, and evolves organizational designs and concepts to build a prepared and successful US Army | Armed Forces | 🇺🇸 Fort Eustis | 1,018 | 1973 |
| 48 | [United States Air Force Security Forces](https://www.tamtam.ai/c/united-states-air-force-security-forces) (afsfc.af.mil)<br>Provide force protection, base law enforcement, secure classified information, conduct patrols, manage security programs, and support combat readiness worldwide. | Armed Forces | 🇺🇸 Lackland AFB | 1,016 | 1947 |
| 49 | [South Carolina Army National Guard](https://www.tamtam.ai/c/south-carolina-army-national-guard) (nationalguard.com)<br>Explore opportunities to serve the South Carolina Army National Guard part-time and receive education assistance, paid job training, and benefits Connect now! | Armed Forces | 🇺🇸 Columbia | 1,015 | 1670 |
| 50 | [Project Transition USA](https://www.tamtam.ai/c/project-transition-usa) (projecttransitionusa.com)<br>Dedicated to assisting transitioning military and veterans in finding civilian careers through advanced LinkedIn training, personal introductions, and mentorship support | Armed Forces | 🇺🇸 Tampa Bay | 1,003 | 2013 |

## 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 Nov 15, 2026.

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- [Manufacturers in the United States](https://www.tamtam.ai/l/manufacturers-united-states) (8,677)
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## The same list elsewhere

- [Armed Forces companies in the world](https://www.tamtam.ai/l/armed-forces-companies-in-the-world) (376)

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Source: https://www.tamtam.ai/l/armed-forces-companies-united-states