Thea Energy

Zap Energy, founded in 2017 in Everett, Washington, generates fusion energy by driving electrical current through plasma.

Helion, founded in 2013 in Everett, Washington, develops fusion energy generators that produce electricity through nuclear fusion.

TAE Technologies, founded in 1998 in Foothill Ranch, California, USA, develops fusion energy systems capable of delivering on-demand clean energy with no radioactive waste or meltdown risk. The breakthrough in the company's 'Norm' technology—achieving stable plasma at over 70 million degrees Celsius in a simplified fusion device—was achieved in part through TAE's decade-long collaboration with Google.

Radiant, founded in 2018 in El Segundo, California, USA, develops portable nuclear microreactors designed to replace diesel generators in remote locations. Its Kaleidos microreactor is a 1MW containerized nuclear power plant.

Blue Energy, founded in 2023 in Washington D.C., designs and builds modular nuclear power plants manufactured in shipyards to significantly reduce construction time and cost.

Tokamak Energy, founded in 2008 in the UK, develops compact nuclear fusion reactors using high-temperature superconducting magnets to control and confine superheated plasma. The company spun out of the UK Atomic Energy Authority in 2009 and aims to operate a pilot power plant from 2034.