Alternatives to Zephyr Fusion
The top Fusion Energy companies similar to Zephyr Fusion, 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.
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URSA MAJOR71Defense TechBerthoud, United States$100.0M - Website
Apex Space66SpaceLos Angeles, United States$200.0M - Website ISIsembard65ManufacturingBristol, United Kingdom$59.0M
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Observable Space64AerospaceAdrian, United States$101.0M - Website D-D-Orbit Portugal63SpaceTechFino Mornasco, Italy$160.0M
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Astroscale58SpaceTechTokyo, Japan$390.8M - Website
MAGDRIVE55SpaceTechHarwell, United Kingdom$12.5M - Website
Arinna54AerospacePalo Alto, United States$4.0M - Website FIFirehawk Aerospace54SpaceTechHawthorne, United States$63.5M
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iMerit85AI Foundation & ComputeSan Jose, United States$43.5M - Website
Airbus Zephyr85Defense TechPortsmouth, United Kingdom$202.4M - Website OROrbital42Artificial IntelligenceDenver, United States$10.0M
- SISilicon Microgravity40SemiconductorsCambridge, United Kingdom$7.1M
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Stoke Space74SpaceTechKent, United States$1.3B - Website
General Dynamics71AerospaceReston, United States$60.0B - Website SPSpire Global70SpaceTechVienna, United States$800.0M
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Axelspace70AerospaceTokyo, Japan$63.0M - Website
Axiom Space68SpaceTechHouston, United States$943.0M - Website
Exotrail67SpaceParis, France$63.0M - Website
Northrop Grumman Systems26Defense TechFalls Church, United States$7.4B - Website
Impulse Space65SpaceRedondo Beach, United States$500.0M - Website
Blue Origin64AerospaceKent, USA$10.1B - Website
SLINGSHOT AEROSPACE64AerospaceWindsor, United States$73.8M - Website
ArianeGroup64SpaceTechParis, France$95.0M - Website SISierra Space63AerospaceLouisville, USA$2.3B
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Unifly63AerospaceLeuven, Belgium$34.6M - Website NANaraSpace63AerospaceSeoul, South Korea$14.5M
- Website OPOpen Cosmos63AerospaceDidcot, United Kingdom$57.0M
- Website YOYORK SPACE SYSTEMS63AerospaceDenver, United States$629.0M
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Zap Energy62Clean EnergyEverett, USA$324.0M - Website
Isar Aerospace62SpaceTechMunich, Germany$270.0M - Website
Firefly Aerospace62SpaceTechCedar Park, United States$1.3B - Website
ADRANOS62AerospaceWest Lafayette, United States$21.6M - Website
NewOrbit62AerospaceReading, United Kingdom$28.5M - Website
Redwire61AerospaceJacksonville, USA$63.0M - Website STStarlab Space Stations61AerospaceHouston, USA$100.0M
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The Exploration Company61AerospaceBordeaux, Europe$105.0M - Website FOFocused Energy61EnergyDarmstadt, Germany$240.0M
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AetherFlux61Quantum ComputingPalo Alto, United States$300.0M - Website VAVarda Space Industries61AerospaceEl Segundo, United States$277.0M
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Fabric8Labs61Advanced ManufacturingSan Diego, United States$119.3M - Website
Xorenth6AI Search Engine - Website
Castelion60DefenseEl Segundo, United States$50.0M - Website
Freeform Future59ManufacturingSan Francisco, United States$67.0M - Website
ORBION Space Technology59AerospaceHoughton, United States$59.3M - Website
Mach Industries58Defense TechHuntington Beach, United States$265.2M - Website
Stoke Space58SpaceTechKent, United States$685.1M - Website
Saildrone58OceanographyAlameda, United States$179.5M - Website
L3Harris Technologies43AerospaceMelbourne, United States - Website
Vast57AerospaceLong Beach, United States$700.0M - Website
Momentick56Greenhouse Gases (GHG)Tel Aviv, Israel$13.0M - Website SWSWISSto1256AerospaceRenens, Switzerland$70.0M
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HyImpulse56AerospaceNeuenstadt am Kocher, Germany$135.1M - Website
SatixFy55SpaceBrampton, Canada$45.0M - Website
Gigaton55Industrial AILondon, United Kingdom$26.0M - Website EXExoAnalytic Solutions55AerospaceFoothill Ranch, United States$63.0M
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Inertia Enterprises55ClimateLivermore, United States$550.0M - Website
FLEXOO55RoboticsMunich, Germany$11.9M - Website
K255AerospaceDenver, USA$63.0M - Website
Beyond Reach Labs40AerospacePasadena, United States
| Company | Sector | HQ | Funding | Score | Website |
|---|---|---|---|---|---|
| URSA MAJOR | Defense Tech | Berthoud, United States | $100.0M | 71 | Website |
| Apex Space | Space | Los Angeles, United States | $200.0M | 66 | Website |
| ISIsembard | Manufacturing | Bristol, United Kingdom | $59.0M | 65 | Website |
| Observable Space | Aerospace | Adrian, United States | $101.0M | 64 | Website |
| D-D-Orbit Portugal | SpaceTech | Fino Mornasco, Italy | $160.0M | 63 | Website |
| Astroscale | SpaceTech | Tokyo, Japan | $390.8M | 58 | Website |
| MAGDRIVE | SpaceTech | Harwell, United Kingdom | $12.5M | 55 | Website |
| Arinna | Aerospace | Palo Alto, United States | $4.0M | 54 | Website |
| FIFirehawk Aerospace | SpaceTech | Hawthorne, United States | $63.5M | 54 | Website |
| iMerit | AI Foundation & Compute | San Jose, United States | $43.5M | 85 | Website |
| Airbus Zephyr | Defense Tech | Portsmouth, United Kingdom | $202.4M | 85 | Website |
| OROrbital | Artificial Intelligence | Denver, United States | $10.0M | 42 | Website |
| SISilicon Microgravity | Semiconductors | Cambridge, United Kingdom | $7.1M | 40 | |
| Stoke Space | SpaceTech | Kent, United States | $1.3B | 74 | Website |
| General Dynamics | Aerospace | Reston, United States | $60.0B | 71 | Website |
| SPSpire Global | SpaceTech | Vienna, United States | $800.0M | 70 | Website |
| Axelspace | Aerospace | Tokyo, Japan | $63.0M | 70 | Website |
| Axiom Space | SpaceTech | Houston, United States | $943.0M | 68 | Website |
| Exotrail | Space | Paris, France | $63.0M | 67 | Website |
| Northrop Grumman Systems | Defense Tech | Falls Church, United States | $7.4B | 26 | Website |
| Impulse Space | Space | Redondo Beach, United States | $500.0M | 65 | Website |
| Blue Origin | Aerospace | Kent, USA | $10.1B | 64 | Website |
| SLINGSHOT AEROSPACE | Aerospace | Windsor, United States | $73.8M | 64 | Website |
| ArianeGroup | SpaceTech | Paris, France | $95.0M | 64 | Website |
| SISierra Space | Aerospace | Louisville, USA | $2.3B | 63 | Website |
| Unifly | Aerospace | Leuven, Belgium | $34.6M | 63 | Website |
| NANaraSpace | Aerospace | Seoul, South Korea | $14.5M | 63 | Website |
| OPOpen Cosmos | Aerospace | Didcot, United Kingdom | $57.0M | 63 | Website |
| YOYORK SPACE SYSTEMS | Aerospace | Denver, United States | $629.0M | 63 | Website |
| Zap Energy | Clean Energy | Everett, USA | $324.0M | 62 | Website |
| Isar Aerospace | SpaceTech | Munich, Germany | $270.0M | 62 | Website |
| Firefly Aerospace | SpaceTech | Cedar Park, United States | $1.3B | 62 | Website |
| ADRANOS | Aerospace | West Lafayette, United States | $21.6M | 62 | Website |
| NewOrbit | Aerospace | Reading, United Kingdom | $28.5M | 62 | Website |
| Redwire | Aerospace | Jacksonville, USA | $63.0M | 61 | Website |
| STStarlab Space Stations | Aerospace | Houston, USA | $100.0M | 61 | Website |
| The Exploration Company | Aerospace | Bordeaux, Europe | $105.0M | 61 | Website |
| FOFocused Energy | Energy | Darmstadt, Germany | $240.0M | 61 | Website |
| AetherFlux | Quantum Computing | Palo Alto, United States | $300.0M | 61 | Website |
| VAVarda Space Industries | Aerospace | El Segundo, United States | $277.0M | 61 | Website |
| Fabric8Labs | Advanced Manufacturing | San Diego, United States | $119.3M | 61 | Website |
| Xorenth | AI Search Engine | — | — | 6 | Website |
| Castelion | Defense | El Segundo, United States | $50.0M | 60 | Website |
| Freeform Future | Manufacturing | San Francisco, United States | $67.0M | 59 | Website |
| ORBION Space Technology | Aerospace | Houghton, United States | $59.3M | 59 | Website |
| Mach Industries | Defense Tech | Huntington Beach, United States | $265.2M | 58 | Website |
| Stoke Space | SpaceTech | Kent, United States | $685.1M | 58 | Website |
| Saildrone | Oceanography | Alameda, United States | $179.5M | 58 | Website |
| L3Harris Technologies | Aerospace | Melbourne, United States | — | 43 | Website |
| Vast | Aerospace | Long Beach, United States | $700.0M | 57 | Website |
| Momentick | Greenhouse Gases (GHG) | Tel Aviv, Israel | $13.0M | 56 | Website |
| SWSWISSto12 | Aerospace | Renens, Switzerland | $70.0M | 56 | Website |
| HyImpulse | Aerospace | Neuenstadt am Kocher, Germany | $135.1M | 56 | Website |
| SatixFy | Space | Brampton, Canada | $45.0M | 55 | Website |
| Gigaton | Industrial AI | London, United Kingdom | $26.0M | 55 | Website |
| EXExoAnalytic Solutions | Aerospace | Foothill Ranch, United States | $63.0M | 55 | Website |
| Inertia Enterprises | Climate | Livermore, United States | $550.0M | 55 | Website |
| FLEXOO | Robotics | Munich, Germany | $11.9M | 55 | Website |
| K2 | Aerospace | Denver, USA | $63.0M | 55 | Website |
| Beyond Reach Labs | Aerospace | Pasadena, United States | — | 40 | Website |