Radiant raises $300 million in December 2025 funding round to scale Kaleidos production

Radiant Industries/Kaleidos

Radiant raised more than $300 million in a new funding round just six months after its Series C, led by Draper Associates and Boost VC with participation from existing investors. The capital is intended to accelerate mass production of Kaleidos and construction of the R-50 factory in Oak Ridge, Tennessee.