cluster
Defense and space startups
Defense tech, drones and counter-drone, ISR, aerospace, maritime, gov-adjacent hardware.
232
companies tracked
48
from the last 2 years
47
startup-relevant federal grants ($12M)
Share of accelerator intake by year
Newest in the cluster
- Mass MagneticsY Combinator S26
USA-made magnetics for aerospace, robotics, and defense.
- Earendil RoboticsY Combinator S26
Drone swarm defence at a small-unit level
- Hop AeroY Combinator S26
Rocket cargo delivery to contested environments
- ExosatY Combinator S26
Building a sovereign Starlink
- Vernius Systems, Inc.Y Combinator S26
Autonomous radar guidance for interceptors
- Isengard Industries IncY Combinator S26
Mass-produced AI strike systems and Counter-UAS
- Greypoint IndustriesY Combinator S26
Building drone swarms that hunt drone operators
- GUILDY Combinator S26
Making aerospace parts faster and cheaper for defense
- IMPACT DronesY Combinator S26
Air Defense as a Service for Civilian Infrastructure.
- General AviationY Combinator X26
Fix ATC by connecting aircraft to the internet
- Maquoketa ResearchY Combinator X26
The intelligence layer for drones
- OrnadyneY Combinator X26
We're building robot birds for surveillance.
Most AI-visible
Highest AEO scores - how well AI assistants can read and cite them.
- Orbital Arc58
- Boom57
- blueflite55
- Pierce Aerospace55
- Alba Orbital55
- ARCA Dynamics54
- Avocado Systems54
- Zelim54
Recent rounds
- Gallosunknown$50M
By program
- Y Combinator85
- Techstars76
- Plug and Play53
- 500 Global8
- a16z speedrun5
- SOSV5
Browse all 232 Defense and space companies →
Updated hourly from accelerator directories, funding news and federal grant data.