Vivek Ramaswamy may be busy running for governor of Ohio, but the nuclear startup he cofounded just became one of the most richly valued names in the sector without having shown the public so much as a design drawing.
Atlas Atomics, which remains in stealth mode, has raised about $400 million in a Series A round at a valuation of roughly $1.9 billion, Bloomberg reported on Thursday, citing people familiar with the matter. General Catalyst is leading the round, with Andreessen Horowitz participating.
SCOOP: Vivek Ramaswamy is backing and co-founding a new nuclear startup called Atlas Atomics. The company is raising about $400 million in new capital at a $1.9 billion valuation, led by General Catalyst + w/ participation from A16z. https://t.co/94L5Lb0mNR
— Natasha Mascarenhas (@nmasc_) October 8, 2026
Ramaswamy is a cofounder and backer, but the company is run by cofounder Kevin Gan, who spent more than 15 years investing in energy companies, most recently at Millennium and before that at D.E. Shaw. Its chief nuclear officer is Balendra Sutharshan, the former chief operating officer of Oak Ridge National Laboratory.
Atlas is also not entirely new to our readers.
In August, when DOE's National Reactor Innovation Center named the second round of its Nuclear Energy
