Momentus
Public
What they do:
The space infrastructure services company
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HQ: San Francisco, CA, United States
Top Space & Defense Startups in the United States
This list has 116 startups and was last updated on Oct 15, 2026. 41 of them are hiring right now. Biggest hubs: San Francisco (47), Los Angeles (23), and New York (6). Largest teams: Relativity Space, Astranis, and Stoke Space. Latest round: Onebrief raised $151M (Oct 14, 2026).
116 startupsPage 1 of 4
Relativity Space
Hiring
What they do:
Building humanity’s multiplanetary future.
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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
What they do:
Onebrief makes military headquarters run seamlessly
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HQ: Honolulu, HI, United States
Funding:
$151M · Equity · Oct 2026
What they do:
Economically and environmentally sustainable supersonic travel
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HQ: Denver, CO, United States
Beyond Reach Labs
Hiring
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:
Autonomous electric airplanes
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HQ: San Francisco, CA, United States
Quindar
Hiring
What they do:
Datadog for Space
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HQ: Denver, CO, United States
Albedo
Hiring
What they do:
Full-stack VLEO satellite missions
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HQ: Denver, CO, United States
What they do:
The lightest electric aircraft motors in the world.
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HQ: Denver, CO, United States
Astro Mechanica
Hiring
What they do:
Supersonics for the new Jet Age
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HQ: San Francisco, CA, United States
Icarus
Hiring
What they do:
Stratospheric birds for defense
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HQ: Los Angeles, CA, United States
What they do:
Heart makes electric airplanes with an all-electric range of 250 miles
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HQ: Los Angeles, CA, United States
What they do:
Bluetooth to Space
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HQ: Las Vegas, NV, United States
What they do:
All-electric seagliders for fast, affordable regional transportation
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HQ: North Kingstown, RI, United States
What they do:
We're building satellites to create a real-time 3D map of the world.
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HQ: San Francisco, CA, United States
What they do:
Mass-produced AI strike systems and Counter-UAS
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HQ: San Francisco, CA, United States
What they do:
Turning space into a transportation layer for Earth
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HQ: Los Angeles, CA, United States
What they do:
We build robots for dull, dirty, and dangerous jobs.
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HQ: Charlotte, NC, United States
9 Mothers
Hiring
What they do:
Counter Drone Systems. $1.6m sales. We delivered for the DoW.
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HQ: Austin, TX, United States
Deepnight
Hiring
What they do:
Building The Next Generation of Night Vision Devices
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HQ: San Francisco, CA, 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
What they do:
Drone submarines
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HQ: Philadelphia, PA, United States
Farcast
Hiring
What they do:
We build advanced satcom user terminals
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HQ: San Francisco, CA, United States
Starcloud
Hiring
What they do:
Data centers in space
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HQ: Seattle, WA, United States
Reditus Space
Hiring
What they do:
Reusable Satellites
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HQ: Atlanta, GA, United States
Odys Aviation
Hiring
What they do:
Vertical takeoff and landing aircraft for major airlines
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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
Vendra
Hiring
What they do:
Custom Parts, Manufactured in America 🇺🇸
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HQ: San Francisco, CA, United States
Orbital Operations
Hiring
What they do:
High Thrust Space Vehicles for Satellite Defense
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HQ: Los Angeles, CA, United States
Godela
Hiring
What they do:
AI Physics Engine to replace simulations and prototypes
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HQ: San Francisco, CA, United States
Airhart Aeronautics
Hiring
What they do:
Airplanes anyone can fly
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HQ: Los Angeles, CA, United States
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
GroundControl
Hiring
What they do:
Vertical AI for highly-regulated manufacturing
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HQ: San Francisco, CA, United States
Wardstone
Hiring
What they do:
The Modular Interceptor Platform
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HQ: Los Angeles, CA, United States
Questions and answers
How many startups are on this list?
There are 116 startups on this list, last updated on Oct 15, 2026.
Which of them are hiring?
41 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).
Which of them raised money recently?
Latest rounds: Onebrief — $151M Equity (Oct 2026), Crixus Defense — $500K SAFE (Oct 2026), and GP Defense Investments — $5.89M Equity (Oct 2026).
Where are they based?
The biggest hubs are San Francisco (47), Los Angeles (23), and New York (6).