> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-in/united-states/defense-and-space/ # Defense and space contractors in the United States Larger defense and space contractors headquartered in the United States: who they are, what they run and how to reach their people. By Enrich.chat Editorial. Updated October 21, 2026. **Short answer:** Larger defense and space contractors headquartered in the United States include Lockheed Martin, General Dynamics, L3Harris Technologies, Leidos and Amentum. Below are the tools that stand out, where they are based and how big they are. ## Which defense and space contractors are headquartered in the United States? They include Lockheed Martin, General Dynamics, L3Harris Technologies, Leidos and Amentum. The table lists a selection in alphabetical order; names link to company profiles. | Company | Size | Tools detected | | --- | --- | --- | | Akima | 2,000 to 5,000 | 26 | | [Amentum](https://enrich.chat/company/amentum/) | 25,000 to 50,000 | 6 | | Anduril Industries | 2,000 to 5,000 | 21 | | ARA | 2,000 to 5,000 | 25 | | BWX Technologies | 2,000 to 5,000 | 21 | | Curtiss-Wright | 5,000 to 10,000 | 19 | | Defense Contract Management Agency (DCMA) | 10,000 to 25,000 | 6 | | Draper | 2,000 to 5,000 | 19 | | Elbit Systems Israel | 5,000 to 10,000 | 23 | | [General Dynamics](https://enrich.chat/company/general-dynamics/) | 100,000+ | 17 | | [General Dynamics Mission Systems](https://enrich.chat/company/general-dynamics-mission-systems/) | 10,000 to 25,000 | 21 | | HII | 5,000 to 10,000 | 26 | | Kratos Defense and Security Solutions | 2,000 to 5,000 | 12 | | [L3 Technologies](https://enrich.chat/company/l3-technologies/) | 10,000 to 25,000 | 6 | | [L3Harris Technologies](https://enrich.chat/company/l3harris-technologies/) | 25,000 to 50,000 | 48 | | [Leidos](https://enrich.chat/company/leidos/) | 25,000 to 50,000 | 24 | | Leonardo DRS | 5,000 to 10,000 | 12 | | [Lockheed Martin](https://enrich.chat/company/lockheed-martin/) | 100,000+ | 39 | | Maxar Technologies | 2,000 to 5,000 | 47 | | Navwar | 10,000 to 25,000 | 3 | | [Orbital ATK](https://enrich.chat/company/orbital-atk/) | 10,000 to 25,000 | 3 | | [Raytheon Intelligence & Space](https://enrich.chat/company/raytheon-intelligence-and-space/) | 25,000 to 50,000 | 3 | | [Raytheon Missiles & Defense](https://enrich.chat/company/raytheon-missiles-and-defense/) | 25,000 to 50,000 | 3 | | [Sandia National Laboratories](https://enrich.chat/company/sandia-national-laboratories/) | 10,000 to 25,000 | 12 | | SOSi | 2,000 to 5,000 | 6 | | SRC | 2,000 to 5,000 | 29 | | United Launch Alliance (ULA) | 2,000 to 5,000 | 12 | | [United States Space Force](https://enrich.chat/company/united-states-space-force/) | 10,000 to 25,000 | 12 | | [V2X](https://enrich.chat/company/v2x/) | 10,000 to 25,000 | 18 | | Vectrus | 5,000 to 10,000 | 18 | ## What technology do defense and space contractors in the United States use? These tools stand out among them: each is detected more often here than across all the organizations listed. The tick on each bar marks that wider average. **Figure: Tools that stand out among defense and space contractors in United States.** Bars for the share of listed defense and space contractors in United States where each tool was detected, with a tick for the share across everything listed: New Relic 35% against 19%, iCIMS 18% against 4%, WP Engine 18% against 7%, BugHerd 15% against 2%, Marketo 15% against 7%, SAP SuccessFactors 15% against 8%. *Share of listed defense and space contractors in the United States where each tool was detected. The tick marks the share across all listed organizations.* ## Where in the United States are they based? The bars show the headquarters city of the listed defense and space contractors. **Figure: Headquarters cities of defense and space contractors in United States.** Bars for the share of listed defense and space contractors in United States headquartered in each city: Reston 9%, Arlington 6%, Albuquerque 6%, San Diego 6%, Irvine 6%, Herndon 6%. *Share of listed defense and space contractors in the United States by headquarters city.* ## How big are defense and space contractors in the United States? The columns show how they spread across six size ranges. **Figure: Size of defense and space contractors in United States.** Six columns for the share of listed defense and space contractors in United States in each size range: 2-5K 41%, 5-10K 15%, 10-25K 24%, 25-50K 15%, 50-100K 0%, 100K+ 6%. *Share of listed defense and space contractors in the United States in each size range.* ## More to explore Other industries in the United States: [Hospitals and health care](https://enrich.chat/companies-in/united-states/hospitals-and-health-care/)[Information technology and services](https://enrich.chat/companies-in/united-states/information-technology-and-services/)[Retail](https://enrich.chat/companies-in/united-states/retail/)[Higher education](https://enrich.chat/companies-in/united-states/higher-education/)[Government administration](https://enrich.chat/companies-in/united-states/government-administration/)[Financial services](https://enrich.chat/companies-in/united-states/financial-services/)[Insurance](https://enrich.chat/companies-in/united-states/insurance/)[Restaurants](https://enrich.chat/companies-in/united-states/restaurants/)[Mechanical or industrial engineering](https://enrich.chat/companies-in/united-states/mechanical-or-industrial-engineering/)[Real estate](https://enrich.chat/companies-in/united-states/real-estate/)[All of United States](https://enrich.chat/companies-in/united-states/) Defense and space elsewhere: [Virginia](https://enrich.chat/companies-in/virginia/defense-and-space/)[Defense and space](https://enrich.chat/industries/defense-and-space/) ## How do you reach program managers, engineering directors and CISOs at defense and space contractors in the United States? Pick an organization from the table, then ask your AI agent for the people in the roles you sell to. ```text Use www.enrich.chat to find program managers, engineering directors and CISOs at [company] in the United States, with titles and verified work emails ``` ## Frequently asked questions ### Which defense and space contractors are headquartered in the United States? They include Lockheed Martin, General Dynamics, L3Harris Technologies, Leidos and Amentum. The page lists a selection with links to their profiles. ### What technology do defense and space contractors in the United States use? Tools that stand out include New Relic, iCIMS, WP Engine and BugHerd. ### How big are defense and space contractors in the United States? They range from about 2,000 employees to well over 100,000. The columns on this page show the spread. ### Who do you sell to? Usually program managers, engineering directors and CISOs. Ask your AI agent to use www.enrich.chat to find them with verified work emails. ## Try this prompt Find program managers, engineering directors and CISOs ```text Use www.enrich.chat to find program managers, engineering directors and CISOs at [company] in the United States, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Hospitals and health systems in the United States](https://enrich.chat/companies-in/united-states/hospitals-and-health-care/) - [Software and technology services companies in the United States](https://enrich.chat/companies-in/united-states/information-technology-and-services/) - [Retailers in the United States](https://enrich.chat/companies-in/united-states/retail/) - [Colleges and universities in the United States](https://enrich.chat/companies-in/united-states/higher-education/) - [Defense and space contractors in Virginia](https://enrich.chat/companies-in/virginia/defense-and-space/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)