Momentus
Public
What they do:
The space infrastructure services company
Quick facts:
HQ: San Francisco, CA, United States
Top Space Exploration Startups
This list has 20 startups and was last updated on Oct 15, 2026. 10 of them are hiring right now. Biggest hubs: San Francisco (7) and Los Angeles (5). Largest teams: Relativity Space, Astranis, and Stoke Space.
20 startups
Relativity Space
Hiring
What they do:
Building humanity’s multiplanetary future.
Quick facts:
HQ: Los Angeles, CA, United States
Astranis
Hiring
What they do:
Advanced satellites for high orbits.
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HQ: San Francisco, CA, United States
Stoke Space
Hiring
What they do:
Seamless mobility to, through, and from space. It starts with 100%…
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HQ: Seattle, WA, United States
Quindar
Hiring
What they do:
Datadog for Space
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HQ: Denver, CO, United States
Turion Space
Hiring
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
Epsilon3
Hiring
What they do:
AI-Powered ERP, MES, and Test Software for Complex Operations
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HQ: Los Angeles, CA, United States
AstroForge
Hiring
What they do:
We Mine Asteroids
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HQ: Los Angeles, CA, United States
What they do:
Last-mile delivery for satellites.
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HQ: Buenos Aires, Argentina
TransAstra Corporation
Hiring
What they do:
Orbital logistics: Unleashing space industry, from Earth to asteroids
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HQ: Los Angeles, CA, United States
Orca Aerospace
Hiring
What they do:
AI spacecraft operators that lives onboard the vehicle
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HQ: San Francisco, CA, United States
What they do:
Tesseract builds better thrusters for modern satellites
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HQ: Livermore, CA, United States
What they do:
Mass-producing and financing micro data center incredibly quickly.
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HQ: San Francisco, CA, United States
Spaceium Inc
Hiring
What they do:
In-Space Refueling
Quick facts:
What they do:
Building lunar landers
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HQ: London, United Kingdom
What they do:
We visually monitor space objects for governments and defense
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What they do:
Building a neutral, sovereign alternative to Starlink
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HQ: San Francisco, CA, United States
What they do:
The highest-accuracy global weather data from low-cost flat satellites
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HQ: Orem, UT, United States
SpaceRyde
Shut down
What they do:
The Rocket Network: Sustainable & On-Demand Delivery Anywhere in Space
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HQ: San Francisco, CA, United States
Bagaveev Corporation
Shut down
What they do:
Launch small satellites
Quick facts:
HQ: San Francisco, CA, United States
Questions and answers
How many startups are on this list?
There are 20 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
10 of them are hiring right now, including Relativity Space, Astranis, and Stoke Space.
Which of them have the largest teams?
By team size: Relativity Space (2,500 employees), Astranis (500 employees), and Stoke Space (305 employees).
Where are they based?
The biggest hubs are San Francisco (7) and Los Angeles (5).