Category: Featured

Any roughneck could tell you the best way to produce energy is to dig a hole deep into the earth and pump some oil out. They’re only half-right, at least according to Deep Fission.

A global nuclear energy resurgence is underway, driven by the need for a stable, low-carbon energy mix and massive electricity demand projections spurred by the artificial intelligence boom. Deep Fission, a U.S. company, has developed a "gravity reactor" model that places a small 15-megawatt pressurized water reactor one mile underground, which is estimated to slash construction costs by up to 80% compared to traditional plants.

Deep Fission estimates that its innovative approach can slash construction costs by as much as 80 percent.

Investors included Ed Eisler of EE Holdings and Mark Tompkins of Montrose Capital, who led the company’s previous financing round in September 2025. In addition to the financing, Deep Fission has formed a new strategic relationship with Blue Owl Capital’s Real Assets platform, an alternative asset manager.

Deep Fission said it has raised $80 million in new financing to accelerate the commercialization of its advanced nuclear approach, which places small modular pressurized water reactors in boreholes about one mile underground. The Berkeley-based company said the capital raise was completed through a private placement of 5,333,333 restricted shares of common stock at $15.00 per share.

Deep Fission Secures Fresh Capital To Advance Borehole Reactor Projects.

Deep Fission, a Berkeley, Calif.-based underground nuclear reactor developer, raised $80m from firms like EE Holdings and Montrose Capital.