Radiant, a pioneer in portable, mass-produced nuclear microreactors, today announced that it has raised more than $300 million in a new round of funding.
This latest capital raise, coming just six months since closing its Series C, and put together in just a few weeks, will support the scaling of commercialization efforts as Radiant prepares to break ground early next year on its recently announced R-50 factory in Oak Ridge, Tennessee.
This new round, led by Draper Associates and Boost VC, also includes additional financial commitments from current investors, reinforcing their continued confidence in Radiant’s positioning in the microreactor space.
said Doug Bernauer, CEO and Founder of Radiant. “This funding enables us to build our factory and keep to our DOME schedule, where we will achieve self-sustained chain reaction on a reactor designed by, built by, fueled by, and operated by Radiant alongside our partners at the Idaho National Lab.”
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Radiant continues to meet milestone after milestone as they remain on track for next year’s startup of its first reactor – the Kaleidos Demonstration Unit (KDU), at Idaho National Laboratory’s Demonstration of Microreactor Experiments (DOME) facility.
Radiant’s factory-built, transportable nuclear generators are designed to provide always-on power for defense, disaster response, remote industry, and critical infrastructure- applications where traditional energy systems fall short.
Radiant has delivered on their promises every step of the way,” said Tim Draper, Founder and Managing Partner of Draper Associates. “Portable nuclear power is going to provide the bulk of our incremental energy in the years to come and Radiant is executing with purpose not just towards turning on their first reactor, but building them at scale in months, not years.”
“Nuclear is the most important opportunity of our lifetime, and no team is as focused on execution as Radiant,” said Adam Draper, Partner at Boost VC. “They are a force of nature, hitting every milestone on – or ahead – of time.”
“Radiant is delivering a new class of portable, micro-scale nuclear reactors that can provide reliable energy to places where traditional generation simply isn’t feasible,” said Mina Faltas, Founder and Chief Investment Officer at Washington Harbour Partners. “By moving a critical capability from development to real-world deployment, Radiant is building a resilient solution to energy gaps for warfighters operating on the edge. We’re proud to back a team building infrastructure that strengthens U.S. energy resilience and mission readiness.”
“This is what the West and its allies needs, and this is the type of team we back,” said Colin Anderson, Founding Partner, Friends & Family Capital and ex-CFO, Palantir. “The Radiant team has repeatedly delivered new capabilities, met schedule requirements, and kept costs competitive. The focus is on energy resiliency that moves beyond prototypes to produce measurable operational effects.”
“In an industry fueled by more hype than HALEU, Radiant stands out as the exception,” said David Ulevitch, General Partner, Andreessen Horowitz. “The team’s ruthless focus on execution and bringing their mission to life through commercial success separate them from the rest of the pack.”
“We back sharp management teams with the rare ability to deliver at scale,” said Grant Hosking, Managing Partner at Align Ventures. “Radiant stands apart as the most compelling and execution-ready platform we’ve seen in next-generation energy infrastructure.”
“Radiant is a leader in the American nuclear startup space, designing reactors essential to our prosperity and security,” said Rachel Slaybaugh, Partner at DCVC; former Program Director at the Department of Energy’s ARPA-E, where she created the nuclear fission program. “Radiant’s superb leadership team is laser-focused on execution and regulatory certainty. DCVC is proud of Radiant’s continued success.”
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