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Startup list · United States

Defence startups in United States

Below are the top US defence startups, ranked by total funding raised. Together the 50 companies on this list have raised a combined $31B. The strongest hubs are United States.

$31Bcombined funding · top 50
United Statestop hub
50companies shown
6fast growing

Ranked by total funding · Updated 2026-06-26 · Source: Dealroom

#CompanyFoundedHQFunding
1 Anduril$100M+ revenue A defense product company that builds technology for military agencies and border surveillance 2017 Costa Mesa, United States $12B
2 Shield AI$100M+ revenue Builds self-driving technology that enables swarms of unmanned systems to operate on the edge without GPS, communications, or remote pilots 2015 San Diego, United States $3.0B
3 Saronic Technologies$100M+ revenue Surface vehicles integrating cutting-edge hardware, software, and artificial intelligence into a single, scalable, fully integrated platform to enhance maritime security and domain awareness 2022 Austin, United States $2.6B
4 Chaos Industries$100M+ revenue High-precision timing solutions for defense and industrial sensing 2022 Los Angeles, United States $1.0B
5 True Anomaly Autonomous orbital defense systems for national space superiority 2022 Denver, United States $872M
6 Skydio$100M+ revenue Leverages breakthrough AI to create intelligent flying machines 2014 San Mateo, United States $851M
7 Apex$100M+ revenue Satellite buses enabling scalable commercial space missions 2020 Los Angeles, United States $719M
8 BlueVoyant Сonverges internal and external cyber defense capabilities into an outcomes-based, cloud-native, and single unified platform: BlueVoyant Elements™ 2017 New York City, United States $696M
9 Radiant Industries Developing portable zero-emission small nuclear microreactors to provide resilient clean power for remote and critical sites 2019 El Segundo, United States $621M
10 Forterra$100M+ revenue Autonomous vehicle systems to serve and support soldiers and civilians working on the front lines 2002 Clarksburg, United States $584M
11 Epirus$100M+ revenue Focused on national security, offering Leonidas, a software-defined, high-power microwave system with efficient power management 2018 Hawthorne, United States $548M
12 Mach Industries Building next-generation defense systems 2023 Huntington Beach, United States $485M
13 Castelion A modern defense production company building the next generation of military hypersonic, vehicle, and strike systems to deter future wars 2022 El Segundo, United States $443M
14 Hermeus High-speed aircraft manufacturer focused on the rapid design, build, and test of high-Mach and hypersonic aircraft for the military 2018 Atlanta, United States $416M
15 Amca Acquiring and developing critical aerospace and defense products with a focus on rapid prototyping and customer responsiveness 2024 El Segundo, United States $377M
16 Ursa Major Hypersonics, solid rocket motors, and space-based defense systems 2015 Berthoud, United States $375M
17 HarbingerFast growing EV manufacturer focused on commercial vehicles 2021 Gardena, United States $358M
18 Onebrief$25M+ revenue A visual strategy tool that helps in campaign, contingency, and crisis planning 2019 Honolulu, United States $344M
19 Reliable Robotics Advanced automation systems for aircraft 2017 Mountain View, United States $331M
20 Saildrone$25M+ revenue Uncrewed surface vehicles for maritime data solutions. 2014 United States $299M
21 Aerojet Rocketdyne Innovative company delivering solutions that create value for its customers in the aerospace and defense markets 1942 Sacramento, United States $283M
22 Wyle Provider of specialized engineering, scientific, and technical services to the Department of Defense, NASA, 1949 El Segundo, United States $246M
23 Allen Control Systems Autonomous precision weapon systems to revolutionize battlefield dominance and military defense strategies 2022 Austin, United States $242M
24 Rebellion Defense$25M+ revenue AI software for national defense and security missions 2019 Washington DC, United States $221M
25 Echodyne Metamaterials-based radar technology ideally suited for 3D security, machine perception and autonomy 2014 Bellevue, United States $199M
26 Northrop Grumman Advanced aerospace and defense technology systems. 1939 Falls Church, United States $198M
27 X-Bow Systems Additive manufacturing of solid rocket motors 2016 Albuquerque, United States $197M
28 HavocAIFast growing Autonomous surface fleets delivering scalable maritime autonomy at cost-efficiency 2024 Providence, United States $196M
29 Auterion$100M+ revenue Open source infrastructure for autonomous robots and drones 2017 Arlington, United States $183M
30 Shift5 Operational Intelligence platform for America's defense and transportation systems 2019 Kansas City, United States $182M
31 Govini$100M+ revenue Defense acquisition software accelerating capability delivery 2011 Pittsburgh, United States $175M
32 Defense Unicorns$25M+ revenue Secure, mission-ready software delivery platforms and tools for national security and defense systems 2021 Colorado Springs, United States $172M
33 FirestormFast growing Developing mission-adaptable aerial vehicles and upending the procurement cost paradigm 2022 San Diego, United States $160M
34 Second Front Developer of cybersecurity products for the U.S. federal government 2014 Wilmington, United States $152M
35 Overland AIFast growing Safer, smarter autonomous systems for off-road terrain 2023 Seattle, United States $141M
36 Principal Mineral Strategic materials platform for critical domestic supply chains. Dallas, United States $140M
37 Twenty Industrial-scale cyber warfare and intelligence capabilities 2024 Arlington, United States $138M
38 PDW Modular tactical drone systems for global defense operations 2019 Huntsville, United States $135M
39 Cambium Developer of advanced materials for extreme environments across aerospace, defense, and industrial sectors 2019 Berkeley, United States $127M
40 Hidden Level Develops advanced RF sensing technology to detect aerial activity, trusted by NASA and the US Department of Defense for security and safety 2018 Syracuse, United States $125M
41 Percepto Autonomous drone-in-a-box solution for industrial inspection 2014 Austin, United States $123M
42 Firehawk Aerospace High-performance hybrid and solid rocket engines 2019 Dallas, United States $122M
43 NerosFast growing Designs and manufactures advanced unmanned drones and ground control systems for military applications 2023 Los Angeles, United States $121M
44 Slingshot Aerospace$25M+ revenue Building space simulation and analytics solutions to bring clarity to complex environments and create a safer world 2017 Brea, United States $115M
45 Scout AIFast growing Building a robotic foundation model for defense 2024 Sunnyvale, United States $115M
46 Eclypsium Helps organizations defend their systems against firmware, hardware, and supply chain attacks 2017 Portland, United States $114M
47 Red 6 Revolutionizing augmented reality (AR) for military training applications worldwide 2018 Orlando, United States $111M
48 Zeno Power Radioisotope power systems for extreme frontier environments 2018 Washington DC, United States $110M
49 Fortem Technologies$25M+ revenue Detect all drone activity, secure your airspace and protect against attack from malicious or nefarious drones 2016 Pleasant Grove, United States $104M
50 Radiance Technologies Radiance Technologies enables the managed delivery of digital packages 2000 Los Altos, United States $103M

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