Seaborg

Saltfoss Energy - Abundant nuclear energy - made to scale

Copenhagen Ø, Denmark · Founded 2015 · $28.0M raised

Headquarters
Copenhagen Ø
Founded
2015
Business Model
B2B
Total Funding
$28.0M
Last Round
$28.0M Venture RoundJan 2023
Rounds
3

Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.

About

Seaborg Technologies (now Saltfoss Energy) develops compact molten salt reactors for safe, mass-produced floating nuclear power generation.

Summary

Seaborg is an Energy company based in Copenhagen Ø, Denmark, founded in 2015. It has raised $28.0M in total across 3 rounds, most recently a $28.0M Venture Round in Jan 2023. Investors include European Innovation Council Fund, PreSeed Ventures and Heartland.

Tech & App Stack

6 technologies & apps tracked

Every product and vendor across these categories, with where each signal came from.

Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.

Funding History

Venture RoundVenture Round2023 (est.)
$28.0M

Sign up to see all 3 events

Funding: Pre-Seed through Venture Round. Amounts, valuations, and investors where available.

Investors

Similar Companies

Commonwealth Fusion Systems

MIT spinout developing compact fusion energy plants using high-temperature superconducting magnet...

Devens, United States501–1000Climate Tech, Energy
Venture RoundTotal funding$3.9BJul 2026
Base Power

Home battery and energy company that provides distributed power storage to reinforce the electric...

Austin, United States51–200Clean Energy, Clean Tech
Series DTotal funding$2.3BAug 2026
OkloIPO

Oklo develops advanced fission power plants and fuel-recycling technologies to deliver reliable, ...

Santa Clara, United States11–50Climate Tech, Energy
Growth EquityTotal funding$2.0BOct 2025
Plug PowerIPO

American green hydrogen and fuel cell solutions company providing complete hydrogen platform from...

Latham, United States1001–5000Clean Tech, Energy
Corporate RoundTotal funding$1.5BJan 2021
Helion

Nuclear fusion energy company building the world's first commercial fusion power plant; has a 50 ...

Everett, United States201–500Clean Energy, Climate Tech
Series G+Total funding$1.5BJun 2026
Twelve

Carbon transformation company that converts CO2 into essential products like sustainable aviation...

Berkeley, United States201–500Carbon Capture, Clean Tech
Series CTotal funding$936.4MDec 2025

Your company? Embed this profile

Add the live badge to your site — it stays current as your funding data updates.

Seaborg on Indexed.vc
<a href="https://indexed.vc/companies/seaborg"><img src="https://indexed.vc/api/badge/company/seaborg" alt="Seaborg on Indexed.vc" width="260" height="76" /></a>