|
Aalo Atomics |
USA |
Fission |
Series B |
aalo.com |
Sodium-cooled microreactor (U-ZrH fuel); "Gigafactory" model. |
|
Antares Nuclear |
USA |
Fission |
Series A |
https://www.google.com/search?q=antaresnuclear.com |
https://www.google.com/search?q=antaresnuclear.com |
|
Arkenlight |
UK |
Nuclear Battery |
Pre-Seed |
arkenlight.co.uk |
Betavoltaic batteries using upcycled Carbon-14. |
|
Avalanche Energy |
USA |
Fusion |
Series B |
avalanche.energy |
"Orbitron" electrostatic confinement fusion. |
|
Betavolt |
China |
Nuclear Battery |
Seed |
betavolt.tech |
Atomic batteries using Nickel-63 and diamond semiconductors. |
|
Blossom Energy |
Japan |
Fission |
Seed |
blossomenergy.jp |
High-Temperature Gas Reactor (HTGR) for thermal applications. |
|
Blue Capsule |
France |
Fission |
Seed |
blue-capsule.com |
Sodium-cooled SMR with TRISO fuel for industrial heat. |
|
Blue Energy |
USA |
Fission |
Series A |
blueenergy.co |
Maritime modular reactors; shipyard-manufactured, underwater. |
|
Blykalla |
Sweden |
Fission |
Series B |
https://www.google.com/search?q=blykalla.com |
https://www.google.com/search?q=blykalla.com |
|
Boston Atomics |
USA |
Fission |
Seed / Grant |
bostonatomics.com |
MIGHTR: Modular Integrated Gas-cooled High-Temp Reactor. |
|
Caelus |
Italy |
Support |
Bootstrapped |
caelus-nuclear.com |
AI and software suite for nuclear licensing and digital twins. |
|
Calogena |
France |
Fission |
Corporate |
calogena.com |
Low-pressure water-cooled microreactor (Groupe Gorgé). |
|
City Labs |
USA |
Nuclear Battery |
Series A |
citylabs.net |
Tritium-based betavoltaic batteries for rugged electronics. |
|
Commonwealth Fusion Systems |
USA |
Fusion |
Series B |
cfs.energy |
SPARC Tokamak with HTS magnets. |
|
Copenhagen Atomics |
Denmark |
Fission |
Seed / Crowd |
copenhagenatomics.com |
Thorium Molten Salt Reactor; waste burner. |
|
Core Power |
UK |
Fission |
Strategic |
corepower.energy |
Maritime Molten Chloride Fast Reactor (MCFR). |
|
Curio |
USA |
Fuel Cycle |
Seed |
curio.energy |
Nuclear waste recycling and reprocessing (TRU). |
|
Deep Fission |
USA |
Fission |
Seed |
deepfission.com |
PWR deployed in deep underground boreholes. |
|
Emerald Horizon |
Austria |
Fission |
Series A |
emerald-horizon.com |
Accelerator-Driven System (ADES) using Thorium in Molten Salt. |
|
Emerald Nuclear |
USA |
Fission |
Seed |
https://www.google.com/search?q=emeraldnuclear.com |
https://www.google.com/search?q=emeraldnuclear.com |
|
Energy Singularity |
China |
Fusion |
Series A |
energysingularity.cn |
Tokamak using High-Temperature Superconducting (HTS) magnets. |
|
EX-Fusion |
Japan |
Fusion |
Series A |
ex-fusion.com |
Laser fusion with dual-use commercial strategy. |
|
Exodys Energy |
USA |
Fission |
Seed |
exodysenergy.com |
Fast Chloride-Molten Salt Reactor (FC-MSR) & Waste Recycling. |
|
General Fusion |
Canada |
Fusion |
Series E |
generalfusion.com |
Magnetized Target Fusion (MTF) using liquid metal liner. |
|
Hadron Energy |
USA |
Fission |
SPAC / Pre-Public |
hadronenergy.com |
"Hadron Halo" Micro-Modular Reactor (MMR) using Light Water tech. |
|
HALEU Energy Fuel |
USA |
Fuel Cycle |
Public (Sub.) |
nanonuclearenergy.com |
Domestic supply chain for HALEU fuel (Nano Nuclear). |
|
Helical Fusion |
Japan |
Fusion |
Series A |
https://www.google.com/search?q=helical-fusion.com |
https://www.google.com/search?q=helical-fusion.com |
|
HelicitySpace |
USA |
Fusion |
Seed |
helicityspace.com |
Magneto-inertial fusion propulsion for spaceflight. |
|
Helion Energy |
USA |
Fusion |
Series E |
helionenergy.com |
Magneto-inertial fusion (pulsed magnetic fields). |
|
Hephaestus Technologies * |
UK |
Fusion / Support |
Pre-Seed |
hephtechnologies.com |
AI-accelerated plasma simulation and control engines. |
|
Hexana |
France |
Fission |
Series A |
hexana.com |
Sodium-cooled fast reactor with thermal energy storage. |
|
Howe Industries |
USA |
Propulsion |
Grant / Seed |
howeindustries.net |
Advanced space propulsion (radioisotope/fission-thermal). |
|
Jimmy |
France |
Fission |
Series A |
jimmy-energy.eu |
Atomic thermal generators (HTR) for industrial process heat. |
|
Kairos Power |
USA |
Fission |
Private / Growth |
kairospower.com |
Fluoride salt-cooled High-temperature Reactor (KP-FHR). |
|
Kyoto Fusioneering |
Japan |
Fusion |
Series C |
kyotofusioneering.com |
Fusion subsystems (gyrotrons, breeding blankets). |
|
Last Energy |
USA |
Fission |
Series C |
lastenergy.com |
PWR Microreactor (20MWe); "Power-as-a-Service". |
|
Maritime Fusion |
USA |
Fusion |
Seed |
N/A |
Compact HTS tokamak for maritime propulsion. |
|
Marvel Fusion |
Germany |
Fusion |
Series B |
marvelfusion.com |
Laser fusion using proton-boron fuel (aneutronic). |
|
Moltex Energy |
UK / Can |
Fission |
Series A |
moltexenergy.com |
Stable Salt Reactor (SSR); recycling spent CANDU fuel. |
|
Myrrha |
Belgium |
Fission |
Gov / Strategic |
myrrha.be |
Accelerator-Driven System (ADS) research reactor. |
|
Naarea |
France |
Fission |
Series A |
naarea.fr |
Molten salt fast neutron microreactor (XAMR). |
|
Nano Nuclear Energy |
USA |
Fission |
Public |
nanonuclearenergy.com |
Microreactors (ZEUS, ODIN), fuel fabrication, and transport. |
|
Natura Resources |
USA |
Fission |
Seed / Grant |
naturaresources.org |
Molten Salt Reactor (MSR) for research and commercial use. |
|
Neo Fusion |
China |
Fusion |
Strategic |
N/A |
Hybrid state-private fusion venture. |
|
Newcleo |
UK / It / Fr |
Fission |
Series B |
newcleo.com |
Lead-Cooled Fast Reactors (LFR) using MOX fuel from waste. |
|
Novatron Fusion Group * |
Sweden |
Fusion |
Seed |
novatronfusion.com |
Stable Magnetic Mirror concept (concave magnetic field). |
|
Nt-tao |
Israel |
Fusion |
Series A |
nt-tao.com |
Compact fusion; ultra-fast plasma heating & high density. |
|
NuCube Energy |
USA |
Fission |
Pre-Seed |
nucube.energy |
Solid-state fission microreactor (DeccaCell/NuSun). |
|
Oklo |
USA |
Fission |
Public |
oklo.com |
Liquid metal cooled fast reactor (Aurora). |
|
Otrera Nuclear Energy |
France |
Fission |
Seed |
https://www.google.com/search?q=otrera-nuclear.com |
https://www.google.com/search?q=otrera-nuclear.com |
|
Perpetual Atomics |
UK |
Nuclear Battery |
Seed |
perpetualatomics.com |
Americium-based isotopes for space power. |
|
Proxima Fusion |
Germany |
Fusion |
Series A |
proximafusion.com |
Quasi-isodynamic stellarator fusion. |
|
Radiant |
USA |
Fission |
Series C |
radiantnuclear.com |
Portable microreactor (Kaleidos); TRISO fuel/Helium cooled. |
|
Renaissance Fusion |
Fr / It |
Fusion |
Series A |
renaissancefusion.com |
Stellarator with liquid metal walls. |
|
Saltfoss |
Denmark |
Fission |
Seed |
saltfoss.com |
Compact Molten Salt Reactor (CMSR) on floating barges. |
|
Seaborg Technologies |
Denmark |
Fission |
Series A |
seaborg.com |
Molten Salt Reactors for maritime/floating deployment. |
|
Stargena |
USA |
Nuclear Battery |
Seed |
stargena.com |
Radioisotope Power Cell using decay heat. |
|
Startorus Fusion |
China |
Fusion |
Pre-Series A |
startorus.com |
Spherical Tokamak fusion. |
|
Steady Energy |
Finland |
Fission |
Seed |
steadyenergy.com |
District heating reactor (LDR-50); simple low-pressure design. |
|
TAE Technologies |
USA |
Fusion |
Series G |
tae.com |
Field-Reversed Configuration (FRC) fusion. |
|
TerraPower |
USA |
Fission |
Private Equity |
terrapower.com |
Sodium-cooled fast reactor (Natrium) with molten salt storage. |
|
Terrestrial Energy |
Canada |
Fission |
Series D |
terrestrialenergy.com |
Integral Molten Salt Reactor (IMSR) for heat and power. |
|
Thorizon |
Neth / Fr |
Fission |
Seed |
thorizon.com |
Molten Salt Reactor (MSR) using modular fuel cartridges. |
|
Tokamak Energy |
UK |
Fusion |
Series C |
tokamakenergy.co.uk |
Spherical Tokamak with HTS magnets. |
|
Transmutex |
Switzerland |
Fission |
Series A |
transmutex.com |
Accelerator-Driven System (ADS) for waste transmutation. |
|
Type One Energy |
USA |
Fusion |
Seed |
typeoneenergy.com |
Stellarator fusion using additive manufacturing. |
|
Ultra Safe Nuclear (USNC) |
USA |
Fission |
Late Stage |
https://www.google.com/search?q=usnc.com |
Micro-Modular Reactor (MMR) using TRISO fuel. |
|
Valar Atomics |
USA |
Fission |
Seed |
valaratomics.com |
Gas-cooled SMR for hydrocarbon synthesis. |
|
X-energy |
USA |
Fission |
Series C |
x-energy.com |
High-temperature gas reactor (Xe-100) and TRISO fuel fabrication. |
|
Zap Energy |
USA |
Fusion |
Series D |
zapenergy.com |
Sheared-flow Z-pinch fusion (no external magnets). |
|
Zeno Power |
USA |
Nuclear Battery |
Series A |
zenopower.com |
Radioisotope Power Systems (RPS) using Strontium-90. |
