Space Security companies

Fortastra builds autonomous, low-cost maneuverable spacecraft for on-orbit defense and protection of critical space infrastructure using commercial components.

Space Kinetic builds electromechanical systems for deploying micro-payloads from spacecraft without thrusters, targeting national security space missions from E…

Turion Space builds and operates spacecraft and mission software for space domain awareness, in-orbit servicing, and space logistics, serving U.S. government an…

Muon Space designs, builds, and operates mission-optimized satellite constellations for defense, civil, and commercial customers from its Silicon Valley base.

Mantis Space builds orbital power infrastructure using laser transmission technology to deliver continuous energy to satellites and spacecraft.

Karman Space & Defense is a concept-to-production solutions provider delivering mission-critical systems for hypersonics, missile defense, and space launch.

Privateer Space builds an AI-powered geospatial intelligence platform that fuses multi-domain data into actionable analytics for sectors like defense and energy…

Axiom Space builds commercial space infrastructure including Axiom Station and next-generation spacesuits, and operates human spaceflight missions to the ISS.

K2 Space designs and manufactures ultra-high-power satellite platforms for commercial, scientific, and defence missions across LEO, MEO, GEO, and cislunar space…

True Anomaly is a defence technology company founded in 2022 that designs and builds spacecraft, software, and payloads exclusively for space defence and space…

Momentus is a U.S. commercial space company building orbital transfer vehicles and providing in-space transportation, hosted payloads, and on-orbit servicing.

Northwood Space provides end-to-end ground infrastructure for space missions, focusing on satellite backhaul and shared access models across aerospace, defense,…

Innoflight designs and manufactures radiation-tolerant, cyber-secure space avionics solutions for space vehicles, including software-defined radios, cryptograph…

Kratos Defense & Security Solutions develops affordable, disruptive defense technologies in unmanned systems, hypersonics, space, and cybersecurity for U.S. nat…

A New Zealand aerospace startup building a reusable, uncrewed satellite platform to provide scalable microgravity access with safe Earth return for researchers…

Capella Space builds and operates a U.S. commercial constellation of synthetic aperture radar satellites, providing high-resolution, all-weather Earth observati…

Relativity Space is an aerospace manufacturer using 3D printing and robotics to build reusable rockets for launch services.

Impulse Space is an aerospace startup founded in 2021 that designs and operates spacecraft for in-space payload transportation, founded by SpaceX veteran Tom Mu…

Cowboy Space Corp. builds satellite infrastructure in Low Earth Orbit for space-based power generation, energy transmission via infrared lasers, and optical dat…

Starfish Space builds autonomous satellite servicing vehicles designed to extend spacecraft lifespans and manage disposal, using electric propulsion to offer a…