Deep Fission Secures $80M in Funding for Nuclear Energy Expansion

There is a moment in every serious technology story where the room goes quiet. Not because no one has questions, but because everyone suddenly realizes the questions just changed. That is where Deep Fission is standing right now, having closed $80M in financing that does not shout for attention, it lowers its voice and lets gravity do the work.

Elizabeth Muller, as CEO, has never chased spectacle. She plays the long game, the kind that values patience over pitch decks and physics over vibes. Alongside Richard Muller, Ph.D., Co-Founder and CTO, this is a team that understands nuclear the way jazz musicians understand silence. The pauses matter. The depth matters. And yes, the fact that their reactor lives nearly 1 mile underground matters more than most people realize.

Deep Fission is not building taller monuments to power. They are drilling down, literally, placing small modular pressurized water reactors deep into the earth where rock replaces concrete, pressure replaces complexity, and gravity becomes an ally instead of an adversary. Call it nuclear with a sense of place. Call it energy that knows when to get out of the way.

This $80M private placement, priced at $15 per share, pulled in serious conviction from Ed Eisler of EE Holdings, Mark Tompkins of Montrose Capital, and Blue Owl Capital’s Real Assets platform. Blue Owl is not window shopping here. They are aligning nuclear baseload with digital infrastructure that does not sleep, blink, or buffer. Data centers hum. Deep Fission listens, then answers with 24/7 power that does not flinch when the sun sets or the wind gets cute.

Michael Brasel, COO, and Mark Schmitz, CFO, are threading execution and discipline through a company that now sits at the intersection of DOE pilot programs, a Kansas demonstration site, and a 12.5 GW pipeline that quietly raises eyebrows across energy and compute circles. This is not about nostalgia for nuclear. It is about relevance, speed, and a refusal to pretend that modern infrastructure can run on optimism alone.

The borehole is the metaphor hiding in plain sight. While the industry debates on the surface, Deep Fission is already underground, working through the hard layers, betting that the future of clean baseload power will belong to teams willing to go deeper than consensus, deeper than headlines, deeper than comfort.