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What are the biggest space companies by valuation? As of Oct 30, 2026, the largest US-listed space companies by market value in our daily quotes are SpaceX (SPCX, $1.83T), Rocket Lab (RKLB, $35.0B), EchoStar (ECHO, $28.2B), AST SpaceMobile (ASTS, $15.9B) and Globalstar (GSAT, $10.7B). Defense primes and diversified aerospace groups are left out, as in our Pure-Play Index, and private companies such as Blue Origin are valued only at funding rounds, so they are not ranked here.
Market values are delayed quotes from our daily stock sync. Each company: SpaceX · Rocket Lab · EchoStar · AST SpaceMobile · Globalstar. All listed space stocks: space stocks.
| Company | Sector | Founded | HQ |
|---|---|---|---|
| SpaceX | Launch, Starlink, Crew, AI | 2002 | Starbase, TX |
| Blue Origin | Launch, Space Stations | 2000 | Kent, WA |
| Rocket Lab | Small Launch, Spacecraft | 2006 | Long Beach, CA |
| Planet Labs | Earth Observation | 2010 | San Francisco, CA |
| Relativity Space | 3D-Printed Rockets | 2015 | Long Beach, CA |
| Sierra Space | Dream Chaser, Stations | 2021 | Louisville, CO |
| Vast | Space Stations | 2021 | Long Beach, CA |
| Axiom Space | Space Stations | 2016 | Houston, TX |
| L3Harris | Defense, Satellites | 2019 | Melbourne, FL |
| BlackSky | Real-time EO | 2014 | Herndon, VA |
| Astra | Spacecraft Propulsion | 2016 | Alameda, CA |
| Capella Space | SAR Imaging (owned by IonQ since 2025) | 2016 | San Francisco, CA |
| Astroscale | Debris Removal | 2013 | Tokyo, Japan |
| Firefly Aerospace | Small/Medium Launch | 2017 | Cedar Park, TX |
Browse all 430+ company profiles with Space Scores, funding data, and market intelligence.
Beyond the established players above, these companies are tackling some of the hardest problems in space with novel approaches: many founded by alumni of SpaceX, Blue Origin, and other established players.
Building Terran R, a fully reusable, largely 3D-printed rocket, now led by former Google CEO Eric Schmidt.
Orbital transfer vehicles and Mars landers; Mira kick stage for last-mile satellite delivery.
A fully reusable launch vehicle with a novel second-stage recovery system, backed by leading VC firms.
Low-cost Daytona rocket for dedicated small-satellite launch, with vertically integrated satellite manufacturing.
Droid spacecraft for proximity operations and satellite servicing.
Jackal autonomous orbital vehicles and the Mosaic software platform for military space domain awareness.
Designs, builds and operates satellite constellations, including the FireSat wildfire-detection satellites for the nonprofit Earth Fire Alliance.
Very large, low-cost satellite buses enabled by Starship-class payload capacity.
As of Oct 30, 2026, the largest US-listed space companies by market value in our daily quotes are SpaceX (SPCX, $1.83T), Rocket Lab (RKLB, $35.0B), EchoStar (ECHO, $28.2B), AST SpaceMobile (ASTS, $15.9B) and Globalstar (GSAT, $10.7B). Defense primes and diversified aerospace groups are left out, as in our Pure-Play Index, and private companies such as Blue Origin are valued only at funding rounds, so they are not ranked here.
Nobody keeps a definitive global count, and estimates depend on what counts as a space company. Our directory profiles 430+ companies, from multi-billion-dollar primes to early-stage startups.
Space companies operate across the value chain: launch services (SpaceX, Rocket Lab, ULA), satellite manufacturing (Airbus, Maxar), Earth observation (Planet Labs, BlackSky), satellite communications (Starlink, OneWeb), space stations (Axiom, Vast), defense and national security, and more.
Public space companies can be bought as stocks (SPCX, RKLB, FLY, VOYG, HAWK, YSS, PL, BKSY, ASTS, RDW, IRDM). Space ETFs include ARKX, UFO, and ITA. Still-private companies like Blue Origin require accredited investor access through secondary markets or space-focused VC funds like Space Capital or Seraphim.