Active companies
Companies their accelerator lists as active, or whose site is alive. 17,200 companies.
| Company | Cluster | Program | Status | Last signal |
|---|---|---|---|---|
| Earendil Robotics Drone swarm defence at a small-unit level | Defense and spacecounter-drone swarm systems | Y CombinatorS26 | Active | checked 2026-08-23 |
| Exosat Building a sovereign Starlink | Defense and spacesovereign satellite constellation | Y CombinatorS26 | Active | checked 2026-08-23 |
| Greypoint IndustriesAI Building drone swarms that hunt drone operators | Defense and spaceautonomous drone swarm warfare | Y CombinatorS26 | Active | checked 2026-08-23 |
| GUILDAI Making aerospace parts faster and cheaper for defense | Defense and spaceAI-automated aerospace manufacturing for defense | Y CombinatorS26 | Active | checked 2026-08-23 |
| Hop Aero Rocket cargo delivery to contested environments | Defense and spacehypersonic rocket cargo delivery | Y CombinatorS26 | Active | checked 2026-08-23 |
| IMPACT DronesAI Air Defense as a Service for Civilian Infrastructure. | Defense and spaceautonomous air defense drones | Y CombinatorS26 | Active | checked 2026-08-23 |
| Isengard Industries IncAI Mass-produced AI strike systems and Counter-UAS | Defense and spaceautonomous strike and counter-UAS systems | Y CombinatorS26 | Active | checked 2026-08-23 |
| Mass Magnetics USA-made magnetics for aerospace, robotics, and defense. | Defense and spaceDomestic rare-earth magnets for defense | Y CombinatorS26 | Active | checked 2026-08-23 |
| Vernius Systems, Inc. Autonomous radar guidance for interceptors | Defense and spaceautonomous radar guidance systems | Y CombinatorS26 | Active | checked 2026-08-23 |
| 株式会社イミロン 数理論理学に基づき、自動運転やAI制御の安全性を数学的に証明する品質保証ソリューションを提供 | Defense and spaceautonomous systems safety verification | Plug and PlayPnP 2026 | Active | checked 2026-08-23 |
| QDIR Thermal cameras for drones | Defense and spaceThermal imaging for defense drones | Alchemist AcceleratorAlchemist Class 41 | Active | - |
| skycube SkyCube is building a digital infrastructure for urban air mobility by tokenizing airspace and enabling real-time route optimization and automated transactions. | Defense and spaceairspace management infrastructure | Plug and PlayPnP 2026 | Active | checked 2026-08-23 |
| 9 Mothers Counter Drone Systems. $1.6m sales. We delivered for the DoW. | Defense and spaceautonomous counter-drone systems | Y CombinatorX26 | Active | checked 2026-08-23 |
| AICE Submarine drones for defense | Defense and spaceAutonomous underwater defense drones | Y CombinatorX26 | Active | checked 2026-08-23 |
| Arlo Industries Track drones and missiles without radars - Accurate, Passive, Scalable | Defense and spacepassive drone and missile tracking network | Y CombinatorX26 | Active | checked 2026-08-23 |
| Dispatch Satellites for Manufacturing in Space | Defense and spacereusable space logistics for manufacturing | Y CombinatorX26 | Active | checked 2026-08-23 |
| General Aviation Fix ATC by connecting aircraft to the internet | Defense and spaceaviation communication infrastructure | Y CombinatorX26 | Active | checked 2026-08-23 |
| Maquoketa ResearchAI The intelligence layer for drones | Defense and spacedrone intelligence software | Y CombinatorX26 | Active | checked 2026-08-23 |
| Nine Fives RF test equipment for next-gen spacecraft, drones, and cellphones | Defense and spaceRF test equipment for aerospace and telecom | Y CombinatorX26 | Active | checked 2026-08-23 |
| Ornadyne We're building robot birds for surveillance. | Defense and spacebiomimetic surveillance drones | Y CombinatorX26 | Active | checked 2026-08-23 |
| Surtr Defense Systems The hardware-agnostic operating system for drone defense | Defense and spaceCounter-UAS OS and threat fusion | Y CombinatorX26 | Active | checked 2026-08-23 |
| Tenet Industries Low-cost, mass-producible defense systems | Defense and spacemass-producible attack drones | Y CombinatorX26 | Active | checked 2026-08-23 |
| Kreios Space Kreios Space is developing an electric propulsion system to revolutionize the satellite industry. With this technology we enable orbital keeping in VLEO (Very Low Earth Orbits) thanks to renewable energy. We make space applications easier. | Defense and spaceElectric propulsion for VLEO satellites | Plug and PlayPnP 2026 | Active | checked 2026-08-23 |
| SpacefluxAI Space Safety Services for a Sustainable Space Environment | Defense and spaceSpace domain awareness and surveillance | Plug and PlayPnP 2026 | Active | checked 2026-08-23 |
| Beyond Reach Labs Space solar arrays that grow to the size of a football field in orbit | Defense and spaceSpace solar power generation | Y CombinatorW26 | Active | checked 2026-08-23 |
| Constellation SpaceAI AI operating system for mega-scale satellite networks. | Defense and spacesatellite network orchestration | Y CombinatorW26 | Active | checked 2026-08-23 |
| Galactic Resource Utilization Space, Inc. (GRU Space) Moon Hotel -> The Intergalactic Construction Company of Earth | Defense and spacelunar infrastructure and construction | Y CombinatorW26 | Active | checked 2026-08-23 |
| Milliray Technology to detect and track small drones | Defense and spacedrone detection radar systems | Y CombinatorW26 | Active | checked 2026-08-23 |
| Seeing SystemsAI Modular AI-Commanded Drones for Defence | Defense and spaceAI-commanded autonomous strike drones | Y CombinatorW26 | Active | checked 2026-08-23 |
| Coalition SystemsAI AI coordination software for allied defense. | Defense and spaceAI coordination for allied defense | a16z speedrunSR006 | Active | checked 2026-08-23 |
| Pillar Space Systems Building reusable satellites | Defense and spaceReusable satellite infrastructure | South Park Commons | Active5 open roles | checked 2026-08-23 |
| Systellar SpaceAI Systellar Space | Defense and spaceSpace defense and monitoring | TechstarsTS 2026 | Active | checked 2026-08-23 |