Company Nation Funding amount Year founded Employees Main investors 1 Commonwealth Fusion Systems US $2,000m+ 2018 300+ Bill Gates, Temasek, Khosla, Lowercarbon Cap, BEV, ENI 2 TAE Technologies US $1,000m+ 1998 400 Google, Venrock, Chevron, Sumitomo Corp, 3 Helion Energy US $578m 2013 90 Dustin Moskovitz(Asana), Capricorn 4 General Fusion Canada $300m 2002 210 Jeffrey Bezos, Temasek, GIC 5 Tokamak Energy UK $250m 2009 190 Hans-Peter Wild, Legal & General, Winton Ventures 6 Zap Energy US $200m 2017 60 Lower carbon Capital, Chevron, Shell, DCVC, BEV, Addition 7 First Light Fusion UK $107m 2011 70 Oxford, Tencent, Bravos Capital *As of December 31, 2022 More than USD 4 billion investment in only 5 companies