S
Saltfoss
Developing a nuclear power plant concept based on a molten salt reactor, to provide abundant, affordable, and sustainable energy
About Saltfoss
Saltfoss, formerly Seaborg, is a startup that's innovating in the nuclear power industry. They are developing a new type of nuclear power plant that is fundamentally different from existing models. Their Compact Molten Salt Reactor (CMSR) is smaller, safer, more environmentally friendly, and cheaper than traditional nuclear reactors. The CMSR uses a liquid salt mixture as both fuel and coolant, which eliminates the need for constant cooling and reduces the risk of meltdowns or explosions. This also simplifies the design, reducing costs.
Seaborg's business model revolves around the production and deployment of their CMSR on Power Barges. These barges are modular, meaning they can be adjusted to produce between 200 to 800 MW of electricity, and have a lifespan of 24 years. This makes them a flexible and long-term solution for energy production.
Seaborg's target market includes any entities in need of large-scale, affordable, and sustainable energy. This could range from national governments to private corporations. Their competitive advantage lies in their ability to provide a safer, cheaper, and more sustainable alternative to both traditional nuclear power and fossil fuels.
In terms of revenue, Seaborg likely makes money by selling their CMSR Power Barges to clients, and potentially through partnerships for co-development of energy projects.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2015
- Headquarters
- Copenhagen, Denmark
- Employees
- 79
- Open positions
- None listed
- Dealroom signal
- 85.8/100
- Sub-industry
- Clean Energy
- Sector
- Energy, Sustainable Development Goals, EIC, Nuclear Fission, Climate Tech, Nordic Rising Star 2022, Top 50 Nordic Rising Star 2022 Denmark, Novel Energy, Hard Tech, Horizon Europe
- Technology
- Hardware, Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
- Investment activity
- 1 company, latest Jan 2021
- Capital deployed
- $0
- Preferred round
- CORPORATE SPINOUT
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SEEDEquity / VC | Jan 2023 | $0 | — | Unruly Capital | ↗ |
| GRANT✓Other financing | Mar 2022 | $2.5M | — | European Innovation Council | — |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Saltfoss is 2.3K monthly website visits, down 4.2% over the last three months. Saltfoss's team grew 9.7% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed8 investors entered at this stage
David Helgason
Lars Fløe Nielsen
PSV
Mette Fløe Nielsen
Peter Holm
The Index Project
European Innovation Council
Unruly Capital
Series A1 investor entered at this stage
Anders Holch Povlsen
Series B and later2 investors entered at this stage
Team Global
Heartland
Other known investors5 additional known investors
Carsten Bondo Ellegaard
Investbridge Capital
Lukasz Gadowski
Navid Samandari
Nordic Makers
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Saltfoss on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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