Timeline
Companies by founding year, next to the SpaceX milestones happening at the time. The pace picked up sharply once reusable rockets and Starlink trained a large generation of engineers.
- 20261 founded
SpaceX: SpaceX goes public.
- Eclipse Space Turnkey satellite megaconstellations for nations and telecoms.
- 202510 founded
- Ambral AI account managers for B2B companies.
- Applied Atomics Reviving a proven small reactor design for data centers.
- BootLoop An AI agent that writes and tests firmware on real hardware.
- Canada Rocket Company A reusable medium-lift rocket built in Canada. $16.5M
- Constellation Space An AI operating system for large satellite constellations.
- Fortastra Maneuverable satellites for orbital defense. $8M
- Hop Aero Autonomous rockets that deliver cargo anywhere in minutes.
- Maritime Fusion Fusion reactors designed to power ships. $4.5M
- Standard Economics Free cross-border payments built on stablecoins. $9M
- Telemetron An AI support platform built for hardware products.
- 20246 founded
- Andrenam AI-powered underwater sensing buoys for maritime security. $28M
- Cosmic Robotics Robots that install utility-scale solar panels. $4M
- Endurance Energy Geothermal power from undersea volcanic heat. $54M
- General Matter Domestic uranium enrichment for American reactors. $50M
- Revel Modern software for hardware test and control. $180M
- Starcloud Data centers in orbit, powered by continuous sunlight. $454M
- 20236 founded
SpaceX: Starship flies for the first time.
- AnySignal Software-defined radios for spacecraft and defense. $29M
- Base Power Home battery systems that double as a distributed power plant. $2.2B
- Beyond Reach Labs Football-field-size solar arrays that fold into a rocket. $10M
- Gradial AI agents that run enterprise marketing content operations. $83.4M
- Muir AI AI that measures supply-chain emissions product by product. $3.25M
- Wraithwatch AI that defends against AI-generated cyberattacks. $8M
- 20228 founded
- Apex Standardized satellite buses built like products, not projects. $500M
- Arbor Energy Rocket-engine turbine technology for clean, firm power. $55M
- AstroForge Mining platinum-group metals from asteroids. $53M
- Castelion Low-cost hypersonic weapons built at production scale. $1.45B
- Clairity Technology Low-energy direct air capture that stores CO2 in concrete. $6.75M
- Glīd Autonomous vehicles that drive on road and rail. $3.1M
- K2 Space Very large, high-power satellites designed for heavy-lift rockets. $950M
- Sift Telemetry and observability for machines. $67M
- 20219 founded
- Arc Electric boats built with aerospace battery know-how. $100M
- Cloud Apartments Factory-built modular apartments for rent.
- Epsilon3 Procedure and operations software for complex hardware. $18.9M
- Impulse Space Orbital transfer vehicles for last-mile delivery in space. $1.02B
- Portal Space Systems Highly maneuverable spacecraft powered by solar thermal propulsion. $67.5M
- Reflect Orbital Satellites with mirrors that deliver sunlight after dark. $35.2M
- Shinkei Systems Robots that process fish humanely for fresher seafood.
- Varda Space Industries Manufacturing medicines in microgravity and bringing them home. $329M
- Zoo Text-to-CAD and a modern CAD engine for hardware design.
- 20203 founded
SpaceX: Crew Dragon carries NASA astronauts to the ISS.
- Parallel Systems Autonomous battery-electric rail cars for short-haul freight. $38M
- Rebellions Energy-efficient AI inference chips. $850M
- Turion Space Spacecraft that watch, inspect and service other satellites. $128M
- 20199 founded
SpaceX: First Starlink satellites launch.
- Astrolab Commercial rovers for the Moon and Mars.
- Farcast User terminals that let more companies run satellite constellations.
- Levels Metabolic health tracking with continuous glucose monitors. $57M
- Machina Labs Robots that form sheet metal without dedicated tooling. $124M
- Phantom Space Mass-produced small rockets and satellites.
- Quilter Physics-driven AI that lays out circuit boards. $25M
- Radiant Portable nuclear microreactors that ship in a container. $505M
- Stellar Pizza Robotic kitchens that make pizza inside a truck. $16M
- Xona Space Systems A GPS alternative from low Earth orbit. $320M
- 20183 founded
- First Resonance ION, a factory operating system for hardware companies. $32M
- Freeform AI-controlled metal 3D printing at industrial scale. $81M
- Hermeus Hypersonic aircraft, starting with uncrewed high-speed jets. $510M
- 20172 founded
- Long Wall Missile defense interceptors and hypersonic test vehicles. $500M
- Reliable Robotics Autonomy systems that let existing aircraft fly without a pilot on board. $294M
- 20163 founded
- Arrivo High-speed maglev lanes for cars.
- Romeo Power Battery packs for commercial electric vehicles. $30M
- Vector Launch Dedicated launch for small satellites.
- 20152 founded
SpaceX: First Falcon 9 booster landing.
- Relativity Space Reusable medium-lift rockets built with automated manufacturing. $1.3B
- Ursa Major Rocket engines and solid rocket motors, sold as products. $238M
- 20143 founded
- Firefly Aerospace Launch vehicles, lunar landers and orbital vehicles.
- Hyperloop One The best-funded attempt to build a hyperloop.
- PicnicHealth Patient-owned medical records that power research. $100M
- 20121 founded
SpaceX: Dragon becomes the first commercial spacecraft to visit the ISS.
- Synthego Engineered cells and CRISPR tools for research.
- 2010
SpaceX: Falcon 9 flies for the first time.
- 2008
SpaceX: Falcon 1 reaches orbit.
- 2002
SpaceX: SpaceX is founded in Hawthorne, California.
Founding year not yet confirmed
34 companies. If you know a founding year and have a source, send a correction.
1872, Airhart Aeronautics, Ambrosia Energy, Argo Space, AscendArc, AtmoCooling, Critical Energy, Critical Loop, Electric Era, Ethos Space, Galadyne, Gambit, Grounded, Hgen, Kalogon, Kyber Labs, Lux Aeterna, Medra, Mesh Optical Technologies, Mithril, Muon Space, Plantd, Planted Solar, Power.Global, Senra Systems, Snubber, Starpath, SysGit, TerraFirma, ThinkOrbital, Verustruct, Virtus Solis, Vital Lyfe, Vori