Deep Fission Inc.

About Deep Fission Inc.

Deep Fission is pioneering a new approach to nuclear energy by placing scalable 15 MWe small modular reactors (SMRs) one mile underground. Their mission is to deliver carbon-free, reliable, and affordable electricity by leveraging natural geological containment to reduce costs, timelines, and deployment footprints.

Products & Services

Small Modular Reactors (SMRs):15 MWe reactors placed one mile underground in 30-inch boreholes, scalable up to 1.5 GWe, using proven pressurized water reactor (PWR) technology and standard LEU fuel. Designed for industrial sites, data centers, remote grids, and commercial hubs with reduced construction costs and faster deployment.

Gravity Nuclear Reactor™

Specialties

Small Modular Reactors (SMRs) Underground Reactor Deployment Pressurized Water Reactor (PWR) Technology Scalable Energy Solutions Pressurized Water Reactor Geothermal Technology Deep Borehole Drilling

Funding History

Debug: View Raw Funding Data

#	Type	Amount Fields	Date Fields	Investors
1	RT: IPO T: - FT: IPO	A: 40000000 MR: - FA: $40 million FAN: 40000000	D: 2026-06-17 FD: 2026-06-17	-
2	RT: IPO T: - FT: IPO	A: 150000000 MR: - FA: 150000000 FAN: 150000000	D: 2026-05-20 FD: 2026-05-20	3 investors
3	RT: Private Placement T: - FT: Private Placement	A: 80000000 MR: - FA: 80 million FAN: 80000000	D: 2026-02-10 FD: 2026-02-10	5 investors
4	RT: Private Placement and Reverse Merger T: - FT: Private Placement and Reverse Merger	A: 30000000 MR: - FA: 30M FAN: 30000000	D: 2025-09-08 FD: 2025-09-08	6 investors
5	RT: Pre-Seed T: - FT: Pre-Seed	A: 4000000 MR: - FA: $4 million FAN: 4000000	D: 2024-08-22 FD: 2024-08-22	1 investors

IPO Latest

2026-06-17

$40.0M

IPO 2026-05-20

$150.0M

Private Placement 2026-02-10

$80.0M

View 4 more funding rounds with Pro

Unlock Full Funding History

Growth Metrics

+45%

Employee Growth

YoY

3.2x

Funding Growth

Last Round

12

Markets

Operating

10K+

Customers

Active

View 3 more growth metrics with Pro

Unlock All Metrics

Mock Up

Team & Leadership

L

Liz Muller

R

Rich Muller

L

Liz Muller

Co-Founder & CEO, Board Chair

R

Rich Muller

Co-Founder & CTO

M

Mark Schmitz

Chief Financial Officer

M

Michael Brasel

Chief Operating Officer

View 56 more team members with Pro

Unlock Full Team Directory

Recent News

Deep Fission Inc. Announces New Product Launch

2 days ago

Company unveils innovative solution to transform the industry, expanding market reach and capabilities...

Leadership Team Expands with Industry Veteran

1 week ago

New executive brings 20+ years of experience to accelerate growth and strategic initiatives...

Company Recognized as Industry Leader

2 weeks ago

Receives prestigious award for innovation and customer satisfaction in competitive market...

Key Competitors

C1

Competitor Alpha

Series B · $50M raised

C2

Competitor Beta

Series C · $120M raised

C3

Competitor Gamma

Series A · $25M raised

C4

Competitor Delta

Seed · $10M raised