
Relativity Space
What they do:
Building humanity’s multiplanetary future.
Quick facts:
HQ: Los Angeles, CA, United States
This list has 46 startups and was last updated on Oct 15, 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).

What they do:
Building humanity’s multiplanetary future.
Quick facts:
HQ: Los Angeles, CA, United States

What they do:
Advanced satellites for high orbits.
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HQ: San Francisco, CA, United States

What they do:
Seamless mobility to, through, and from space. It starts with 100%…
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HQ: Seattle, WA, United States

What they do:
Unmanned airships for inspecting our critical assets
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Funding:
€13M · Oct 2026

What they do:
Space solar arrays that grow to the size of a football field in orbit
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HQ: New York, NY, United States
Funding:
$10M · Oct 2026

What they do:
Datadog for Space
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HQ: Denver, CO, United States

What they do:
Full-stack VLEO satellite missions
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HQ: Denver, CO, United States

What they do:
Supersonics for the new Jet Age
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HQ: San Francisco, CA, United States

What they do:
Stratospheric birds for defense
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HQ: Los Angeles, CA, United States

What they do:
Counter Drone Systems. $1.6m sales. We delivered for the DoW.
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HQ: Austin, TX, United States

What they do:
Building The Next Generation of Night Vision Devices
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HQ: San Francisco, CA, United States

What they do:
Moving Things Around in Space, Imaging Space Objects When We're Not
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HQ: Los Angeles, CA, United States

What they do:
We build advanced satcom user terminals
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HQ: San Francisco, CA, United States

What they do:
Data centers in space
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HQ: Seattle, WA, United States

What they do:
Reusable Satellites
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HQ: Atlanta, GA, United States

What they do:
Vertical takeoff and landing aircraft for major airlines
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HQ: Los Angeles, CA, United States

What they do:
Autonomous Stratospheric UAVs
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HQ: India

What they do:
We Mine Asteroids
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HQ: Los Angeles, CA, United States

What they do:
Custom Parts, Manufactured in America 🇺🇸
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HQ: San Francisco, CA, United States

What they do:
High Thrust Space Vehicles for Satellite Defense
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HQ: Los Angeles, CA, United States

What they do:
AI Physics Engine to replace simulations and prototypes
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HQ: San Francisco, CA, United States

What they do:
Airplanes anyone can fly
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HQ: Los Angeles, CA, United States

What they do:
Orbital logistics: Unleashing space industry, from Earth to asteroids
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HQ: Los Angeles, CA, United States

What they do:
Vertical AI for highly-regulated manufacturing
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HQ: San Francisco, CA, United States

What they do:
The Modular Interceptor Platform
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HQ: Los Angeles, CA, United States

What they do:
Agent-Driven Engineering
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HQ: San Francisco, CA, United States

What they do:
GPS Denied Navigation for Drones
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HQ: San Francisco, CA, United States

What they do:
24/7 satellite connectivity in low Earth orbit
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HQ: San Francisco, CA, United States

What they do:
Commercial alternative to the Deep Space Network
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HQ: San Francisco, CA, United States

What they do:
Modular AI-Commanded Drones for Defence
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HQ: London, United Kingdom

What they do:
Moon Hotel -> The Intergalactic Construction Company of Earth
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HQ: Los Angeles, CA, United States

What they do:
Military exoskeletons
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HQ: San Francisco, CA, United States

What they do:
AI spacecraft operators that lives onboard the vehicle
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HQ: San Francisco, CA, United States

What they do:
Boeing for electric planes
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HQ: Albany, NY, United States

What they do:
Superintelligent space Robots
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HQ: San Francisco, CA, United States

What they do:
Satellites for Manufacturing in Space
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HQ: San Francisco, CA, United States
There are 46 startups on this list, last updated on Oct 15, 2026.
By team size: Relativity Space (2,500 employees), Astranis (500 employees), and Stoke Space (305 employees).
Latest rounds: HyLight — €13M (Oct 2026) and Beyond Reach Labs — $10M (Oct 2026).
The biggest hubs are San Francisco (20), Los Angeles (10), and Seattle (2).