# Space — SpaceX-alumni companies > Launch, satellites, and space infrastructure. 47 companies in the Alumni Founders registry. Most recently verified first. Each entry links to a company page with founders, HQ, stage, capital raised, and headcount. ## Space - [Varda](https://www.alumnifounders.com/company/varda) — Drug manufacturing in space. - [Impulse Space](https://www.alumnifounders.com/company/impulse-space) — Space tugs. - [Celestial Construction Corporation](https://www.alumnifounders.com/company/celestial-construction-corporation) — Construction of cities on other worlds. - [Starcloud](https://www.alumnifounders.com/company/starcloud) — Data centers in space. - [Castelion](https://www.alumnifounders.com/company/castelion) — Hypersonic weapons. - [Asymm](https://www.alumnifounders.com/company/asymm) — Radar for satellites. - [Mithril](https://www.alumnifounders.com/company/mithril) — Shape-changing, electrostatically actuated satellite reflector antennas for space domain awareness. - [K2 Space](https://www.alumnifounders.com/company/k2-space) — Large satellite buses for cheap. - [Senra Systems](https://www.alumnifounders.com/company/senra-systems) — Wire harnesses design. - [AstroLab](https://www.alumnifounders.com/company/astrolab) — Space rovers. - [ASTRO](https://www.alumnifounders.com/company/astro) — Testing for 3D printed space parts. - [Nucleon](https://www.alumnifounders.com/company/nucleon) — Electronics radiation tolerance database. - [Canada Rocket Company](https://www.alumnifounders.com/company/canada-rocket-company) — Sovereign Canadian launch vehicles. - [Ethos Space](https://www.alumnifounders.com/company/ethos-space) — Lunar mining. - [Eclipse Space](https://www.alumnifounders.com/company/eclipse-space) — Satellite megaconstellations. - [AMCA](https://www.alumnifounders.com/company/amca) — Space & defense component manufacturing. - [Manifest Space](https://www.alumnifounders.com/company/manifest-space) — Onboard spacecraft traffic beacons. - [Apex](https://www.alumnifounders.com/company/apex) — Configurable satellite buses. - [Observable](https://www.alumnifounders.com/company/observable) — Telescopes + space app dev platform. - [Turion Space](https://www.alumnifounders.com/company/turion-space) — Droids to monitor space and collect data. - [Portal](https://www.alumnifounders.com/company/portal) — Maneuverable solar-thermal spacecraft. - [Beyond Reach](https://www.alumnifounders.com/company/beyond-reach) — SW/HW for big deployable space structures. - [Constellation](https://www.alumnifounders.com/company/constellation) — AI Satellite failure detection. - [Xona](https://www.alumnifounders.com/company/xona) — Precise Earth navigation system. - [Flotilla](https://www.alumnifounders.com/company/flotilla) — Space fuel depots and tugs. - [Lux Aeterna](https://www.alumnifounders.com/company/lux-aeterna) — Reusable satellite busses. - [Ephemeris Net](https://www.alumnifounders.com/company/ephemeris-net) — Space internet infrastructure. - [ThinkOrbital](https://www.alumnifounders.com/company/thinkorbital) — Space welding, cutting and x-ray vision - [Fortastra](https://www.alumnifounders.com/company/fortastra) — Attack satellites. - [AnySignal](https://www.alumnifounders.com/company/anysignal) — Advanced RF for‍ aerospace + defense. - [Ursa Major](https://www.alumnifounders.com/company/ursa-major) — 3D printed rocket engines. - [Spacedock](https://www.alumnifounders.com/company/spacedock) — Universal space docking connectors. - [Firefly](https://www.alumnifounders.com/company/firefly) — Launch, lunar and orbital vehicles. - [Cascade Space](https://www.alumnifounders.com/company/cascade-space) — Space comms dishes & software. - [Rocket Propulsion Systems](https://www.alumnifounders.com/company/rocket-propulsion-systems) — Small rocket engines. - [Relativity Space](https://www.alumnifounders.com/company/relativity-space) — Reusable rockets. - [Long Wall](https://www.alumnifounders.com/company/long-wall) — Missle defense and target practice. - [Farcast](https://www.alumnifounders.com/company/farcast) — User terminals for satellite internet. - [Argo Space](https://www.alumnifounders.com/company/argo-space) — Transport from LEO to the moon powered by water. - [AscendArc](https://www.alumnifounders.com/company/ascendarc) — Satellite communications. - [Right Ascension](https://www.alumnifounders.com/company/right-ascension) — Aerospace parts manufacturing and testing. - [RAD Team](https://www.alumnifounders.com/company/rad-team) — Radiation reliability consulting. - [General Galactic](https://www.alumnifounders.com/company/general-galactic) — Water based space propulsion. - [AstroForge](https://www.alumnifounders.com/company/astroforge) — Asteroid mining. - [Source](https://www.alumnifounders.com/company/source) — Spacecraft solar arrays. - [Epsilon3](https://www.alumnifounders.com/company/epsilon3) — Software for space companies. - [Phantom Space](https://www.alumnifounders.com/company/phantom-space) — Mass manufactured rockets. --- Canonical HTML: https://www.alumnifounders.com/companies/space