Alternatives to PHASEFOUR
The top SpaceTech companies similar to PHASEFOUR, ranked by relevance (named competitors first, then how closely their sectors overlap) and our 0-100 AI-readiness score. Each links to a full profile with funding and team.
Momentus54SpaceTechSanta Clara, United States$201.0M
Redwire61AerospaceJacksonville, USA$63.0M- SPSpaceFlux37SpaceTechPalo Alto, United States$6.8M
SpaceX75SpaceTechStarbase, United States$10.0B
Axiom Space68SpaceTechHouston, United States$943.0M
Impulse Space65SpaceRedondo Beach, United States$500.0M
Observable Space64AerospaceAdrian, United States$101.0M
BLUE CANYON TECHNOLOGIES63SpaceTechBoulder, United States
SaxaVord62SpaceTechUnst, United Kingdom- ABABL Space Systems62SpaceTechRedondo Beach, United States
Intuitive Machines60SpaceTechHouston, United States$200.0M
Astroscale58SpaceTechTokyo, Japan$630.8M
Lulav Space55SpaceTel Aviv, Israel- SOSophia Space54SpaceTechDenver, United States$10.0M
AstroForge54SpaceTechAustin, United States$13.0M- AGAGILE Space Industries54SpaceTechLoveland, United States
MORPHEUS SPACE53SpaceTechPotsdam, Germany$20.0M- K2K2 SPACE47SpaceTechPalo Alto, United States
- SCOUT Space .42SpaceTechHouston, United States
Orbital Services34SpaceTechHouston, United States
Aemetis15Climate TechCupertino, United States
Swedish Space (Space Services)15SpaceTechSolna, Sweden
Airbus Zephyr85Defense TechPortsmouth, United Kingdom$202.4M
Rocket Lab75SpaceTechLong Beach, United States$2.1B
Loft Orbital70SpaceTechSan Francisco, United States$326.0M
ArianeGroup64SpaceTechParis, France$95.0M- D-D-Orbit Portugal63SpaceTechFino Mornasco, Italy$160.0M
ispace technologies Inc.62SpaceTechTokyo, Japan$853.0M
Firefly Aerospace62SpaceTechCedar Park, United States$1.4B- TRTrue Anomaly61Defense TechDenver, United States$650.0M
The Exploration Company61AerospaceBordeaux, Europe$105.0M
SpinLaunch60SpaceTechLong Beach, United States$116.5M
Orbit Fab60SpaceTechGrand Junction, United States$30.0M
TERRAN ORBITAL59SpaceTechBoca Raton, United States$391.4M- FIFirehawk Aerospace54SpaceTechHawthorne, United States$63.5M
- OXOXFORD SPACE SYSTEMS54SpaceTechAbingdon, United Kingdom$10.0M
Arinna54AerospacePalo Alto, United States$19.0M
COGNITIVE SPACE52SpaceTechDenver, United States$10.0M
Endurosat50SpaceTechSofia, Bulgaria$464.3M
Mynaric50SpaceTechMunich, Germany$100.0M- PAPAVE Space49AerospaceRenens, Switzerland$40.1M
Astra49SpaceTechAlameda, United States$585.0M
Astrobotic49SpaceTechPittsburgh, United States- ACACCION SYSTEMS49AerospaceBoston, United States$78.2M
- LULux Aeterna48AerospaceDenver, United States$14.0M
SpaceFleet Logistics47SpaceTechHouston, United States$10.0M
ENPULSION45AerospaceWiener Neustadt, Austria$4.2M
APEX44SpaceTechLong Beach, United States$210.0M
L3Harris Technologies43AerospaceMelbourne, United States- MOMoon Express42SpaceTechCape Canaveral, United States
- OROrbital42Artificial IntelligenceDenver, United States$10.0M
Stardust Labs42SpacePalo Alto, United States
AZIMUTH42SpaceTechDenver, United States- VIVIRIDIAN32SpaceTechPalo Alto, United States$10.0M
- Ravee Optics, .29SpaceTech
- ARArkadia Space28AerospaceSpain$14.5M
- NENeuraspace27SpaceTechPorto, Portugal$1.2M
Northrop Grumman Systems26Defense TechFalls Church, United States$7.4B
DAIVIN!21Hard TechSan Francisco, United States
Meisei Electric17AerospaceTokyo, Japan
| Company | Sector | HQ | Funding | Score |
|---|---|---|---|---|
| Momentus | SpaceTech | Santa Clara, United States | $201.0M | 54 |
| Redwire | Aerospace | Jacksonville, USA | $63.0M | 61 |
| SPSpaceFlux | SpaceTech | Palo Alto, United States | $6.8M | 37 |
| SpaceX | SpaceTech | Starbase, United States | $10.0B | 75 |
| Axiom Space | SpaceTech | Houston, United States | $943.0M | 68 |
| Impulse Space | Space | Redondo Beach, United States | $500.0M | 65 |
| Observable Space | Aerospace | Adrian, United States | $101.0M | 64 |
| BLUE CANYON TECHNOLOGIES | SpaceTech | Boulder, United States | — | 63 |
| SaxaVord | SpaceTech | Unst, United Kingdom | — | 62 |
| ABABL Space Systems | SpaceTech | Redondo Beach, United States | — | 62 |
| Intuitive Machines | SpaceTech | Houston, United States | $200.0M | 60 |
| Astroscale | SpaceTech | Tokyo, Japan | $630.8M | 58 |
| Lulav Space | Space | Tel Aviv, Israel | — | 55 |
| SOSophia Space | SpaceTech | Denver, United States | $10.0M | 54 |
| AstroForge | SpaceTech | Austin, United States | $13.0M | 54 |
| AGAGILE Space Industries | SpaceTech | Loveland, United States | — | 54 |
| MORPHEUS SPACE | SpaceTech | Potsdam, Germany | $20.0M | 53 |
| K2K2 SPACE | SpaceTech | Palo Alto, United States | — | 47 |
| SpaceTech | Houston, United States | — | 42 | |
| Orbital Services | SpaceTech | Houston, United States | — | 34 |
| Aemetis | Climate Tech | Cupertino, United States | — | 15 |
| Swedish Space (Space Services) | SpaceTech | Solna, Sweden | — | 15 |
| Airbus Zephyr | Defense Tech | Portsmouth, United Kingdom | $202.4M | 85 |
| Rocket Lab | SpaceTech | Long Beach, United States | $2.1B | 75 |
| Loft Orbital | SpaceTech | San Francisco, United States | $326.0M | 70 |
| ArianeGroup | SpaceTech | Paris, France | $95.0M | 64 |
| D-D-Orbit Portugal | SpaceTech | Fino Mornasco, Italy | $160.0M | 63 |
| ispace technologies Inc. | SpaceTech | Tokyo, Japan | $853.0M | 62 |
| Firefly Aerospace | SpaceTech | Cedar Park, United States | $1.4B | 62 |
| TRTrue Anomaly | Defense Tech | Denver, United States | $650.0M | 61 |
| The Exploration Company | Aerospace | Bordeaux, Europe | $105.0M | 61 |
| SpinLaunch | SpaceTech | Long Beach, United States | $116.5M | 60 |
| Orbit Fab | SpaceTech | Grand Junction, United States | $30.0M | 60 |
| TERRAN ORBITAL | SpaceTech | Boca Raton, United States | $391.4M | 59 |
| FIFirehawk Aerospace | SpaceTech | Hawthorne, United States | $63.5M | 54 |
| OXOXFORD SPACE SYSTEMS | SpaceTech | Abingdon, United Kingdom | $10.0M | 54 |
| Arinna | Aerospace | Palo Alto, United States | $19.0M | 54 |
| COGNITIVE SPACE | SpaceTech | Denver, United States | $10.0M | 52 |
| Endurosat | SpaceTech | Sofia, Bulgaria | $464.3M | 50 |
| Mynaric | SpaceTech | Munich, Germany | $100.0M | 50 |
| PAPAVE Space | Aerospace | Renens, Switzerland | $40.1M | 49 |
| Astra | SpaceTech | Alameda, United States | $585.0M | 49 |
| Astrobotic | SpaceTech | Pittsburgh, United States | — | 49 |
| ACACCION SYSTEMS | Aerospace | Boston, United States | $78.2M | 49 |
| LULux Aeterna | Aerospace | Denver, United States | $14.0M | 48 |
| SpaceFleet Logistics | SpaceTech | Houston, United States | $10.0M | 47 |
| ENPULSION | Aerospace | Wiener Neustadt, Austria | $4.2M | 45 |
| APEX | SpaceTech | Long Beach, United States | $210.0M | 44 |
| L3Harris Technologies | Aerospace | Melbourne, United States | — | 43 |
| MOMoon Express | SpaceTech | Cape Canaveral, United States | — | 42 |
| OROrbital | Artificial Intelligence | Denver, United States | $10.0M | 42 |
| Stardust Labs | Space | Palo Alto, United States | — | 42 |
| AZIMUTH | SpaceTech | Denver, United States | — | 42 |
| VIVIRIDIAN | SpaceTech | Palo Alto, United States | $10.0M | 32 |
| SpaceTech | — | — | 29 | |
| ARArkadia Space | Aerospace | Spain | $14.5M | 28 |
| NENeuraspace | SpaceTech | Porto, Portugal | $1.2M | 27 |
| Northrop Grumman Systems | Defense Tech | Falls Church, United States | $7.4B | 26 |
| DAIVIN! | Hard Tech | San Francisco, United States | — | 21 |
| Meisei Electric | Aerospace | Tokyo, Japan | — | 17 |