Emergingby Glyph
NANO Nuclear Energy
Develops the KRONOS MMR gas-cooled microreactor, first planned at the University of Illinois.
Advanced nuclearnanonuclearenergy.com
Companies in frontier tech
22 of 403 companies
X-energy
Develops the Xe-100 high-temperature gas reactor and TRISO-X fuel; Nasdaq XE since 2026.
Advanced nuclearx-energy.com
Meta
Agreed to support 150 MW of XGS geothermal in New Mexico.
Advanced geothermal, Advanced materials, Advanced nuclear, AR glasses, Brain-computer interfacesmeta.com
Natura Resources
Develops molten salt reactors, the MSR-1 research reactor and MSR-100.
Advanced nuclearnaturaresources.com
Kairos Power
Develops a fluoride salt-cooled high-temperature reactor using TRISO pebble fuel.
Advanced nuclearkairospower.com
Samsung C&T
Agreed to invest up to $100 million in Kairos Power and help deploy its reactors.
Advanced nuclearsamsungcnt.com
Westinghouse
Reactor vendor offering the AP300 SMR and eVinci microreactor.
Advanced nuclearwestinghousenuclear.com
Centrica
UK energy company partnering with X-energy to deploy Xe-100 reactors in Britain.
Advanced nuclearcentrica.com
Oklo
Develops Aurora fast microreactors and runs the Groves isotope test reactor.
Advanced nuclearoklo.com
Deep Fission
Develops pressurized water reactors placed in boreholes a mile underground.
Advanced nucleardeepfission.com
Aalo Atomics
Builds sodium-cooled modular reactors for data centers; Aalo-X reached criticality in 2026.
Advanced nuclearaalo.com
Crusoe
AI infrastructure firm partnering with Aalo on a nuclear-powered AI data center.
Advanced nuclear, Next-gen batteriescrusoe.ai
Antares Nuclear
Builds factory-made microreactors for defense and space; Mark-0 reached criticality.
Advanced nuclearantaresindustries.com
Deployable Energy
Its Unity reactor completed a criticality demonstration at INL in June 2026.
Advanced nuclear
Valar Atomics
Builds the Ward 250 gas-cooled test reactor in Emery County, Utah.
Advanced nuclearvalaratomics.com
Last Energy
Develops factory-made pressurized water microreactors, the PWR-5 and PWR-20.
Advanced nuclearlastenergy.com
TerraPower
Develops the Natrium sodium-cooled fast reactor with molten salt storage.
Advanced nuclearterrapower.com
GE Vernova Hitachi Nuclear Energy
Developing the BWRX-300 SMR, first unit under construction at Darlington, Ontario.
Advanced nucleargevernova.com
Holtec International
Develops the SMR-300 pressurized water small modular reactor.
Advanced nuclearholtecinternational.com
NuScale Power
Develops the NuScale Power Module light-water small modular reactor.
Advanced nuclearnuscalepower.com
Atomic Energy (Canada)
220 papers in this field in 24 months (OpenAlex)
Advanced nuclearCandidate, not yet researched
China General Nuclear Power Corporation (China)
177 papers in this field in 24 months (OpenAlex)
Advanced nuclearCandidate, not yet researched