Perseus Defense
Hiring
What they do:
America's Golden Dome for Drones
Quick facts:
HQ: Austin, TX, United States
Space & Defense Startups Hiring Now
This list has 46 startups and was last updated on Oct 16, 2026. Biggest hubs: San Francisco (20), Los Angeles (10), and Seattle (2). Largest teams: Relativity Space, Astranis, and Stoke Space. Latest round: HyLight raised €13M (Oct 12, 2026).
46 startupsPage 2 of 2
Nine Fives
Hiring
What they do:
RF test equipment for next-gen spacecraft, drones, and cellphones
Quick facts:
HQ: San Francisco, CA, United States
Arlo Industries
Hiring
What they do:
Track drones and missiles without radars - Accurate, Passive, Scalable
Quick facts:
HQ: New York, NY, United States
Vernius Systems, Inc.
Hiring
What they do:
Mass-deployable radars for air defense
Quick facts:
HQ: San Francisco, CA, United States
Enhanced Radar
Hiring
What they do:
AI for air traffic control
Quick facts:
HQ: San Francisco, CA, United States
Synapse Semiconductor
Hiring
What they do:
New semiconductors that merge compute and vision
Quick facts:
HQ: Durham, NC, United States
IMPACT Drones
Hiring
What they do:
Air Defense as a Service for Civilian Infrastructure.
Quick facts:
HQ: San Francisco, CA, United States
Consus
Hiring
What they do:
The fastest and cheapest way to use AI with ITAR or CUI data.
Quick facts:
HQ: San Francisco, CA, United States
Spaceium Inc
Hiring
What they do:
In-Space Refueling
Quick facts:
Zymbly
Hiring
What they do:
The decision-support layer for aviation ops teams to know what to do…
Quick facts:
HQ: London, United Kingdom
YC W26Early stage