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Seaborg Technologies

Energy · Copenhagen, Denmark · Founded 2015

Developing a nuclear power plant concept based on a molten salt reactor, to provide abundant, affordable, and sustainable energy MoreLess

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.

Keywords: Nuclear Power, Sustainable Energy, Compact Molten Salt Reactor, Power Barges, Modular Energy Production, Safety, Affordability, Co-Development Partnerships, Energy Market Revolution, Low-Emission Energy.

Company overview

Seaborg Technologies company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2015
Headquarters
Copenhagen, Denmark
Employees
79
Open positions
None listed
Dealroom signal
85.8
Investment activity
1 companies · latest Jan 2021
Capital deployed
$0
Preferred round
CORPORATE SPINOUT
client focusb2btechnologyHardwaretechnologyDeep Techsub industryClean Energybusiness modelManufacturingsectorSustainable Development GoalssectorEICsectorNuclear FissionsectorClimate TechsectorNordic Rising Star 2022sectorTop 50 Nordic Rising Star 2022 DenmarksectorNovel EnergysectorHard TechsectorHorizon Europe

Valuation & funding

Seaborg Technologies funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SEEDEquity / VC Jan 2023 $0 Unruly Capital
GRANTOther financing Mar 2022 $2.5M European Innovation Council
SECONDARYOther financing Mar 2021 $0 Team Global · Heartland
EARLY VCEquity / VC Nov 2020 $22M $88M Anders Holch Povlsen
GRANTOther financing May 2018 $330K Undisclosed
SEEDEquity / VC Apr 2018 David Helgason · Lars Fløe Nielsen · PSV · Mette Fløe Nielsen
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Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

YearEBITDAMarginProfitMarginR&D
2026 −$2M −$4.8M $0
2025 −$2M −$4.8M $0
2024 −$2M −$4.8M $0
2023 −$2M $0
2022 −$2M
2021 −$1.3M
2020 −$545K
Company filings, research estimates and Dealroom dataOpen the full financial model →

Growth signals

Seaborg Technologies website traffic

Latest recorded traffic for Seaborg Technologies is 2.3K monthly website visits, down 4.2% over the last three months. Seaborg Technologies's team grew 9.7% over the past year.

Latest monthly visits2.3K 3-month web change-4.2% 1-year team growth+9.7%
Monthly website visits101 observations · Mar 2017–Jul 2026
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Comparisons

Seaborg Technologies compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →

Capital deployed

Seaborg Technologies investments and acquisitions

Recent portfolio relationships for companies that also act as investors or acquirers.

Talent graph

Seaborg Technologies's talent

Book a demo to see the people
Team profiled 18 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 11 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

16 investors on Seaborg Technologies's cap table

Sourced from Dealroom's funding and investor records.

Seed 8 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 A 1 investor entered at this stage
Anders Holch Povlsen
Series B+ 2 investors entered at this stage
Team Global
Heartland
Other known 5 additional known investors
Carsten Bondo Ellegaard
Investbridge Capital
Lukasz Gadowski
Navid Samandari
Nordic Makers

Global footprint

Where Seaborg Technologies has talent and traffic

Workforce by country
3 countries with
team presence
🇩🇰 Denmark91.7%
🇸🇪 Sweden5%
🇰🇷 South Korea3.3%
3 countries shown

In the news

Latest news about Seaborg Technologies

Recent press, funding announcements, and product moves mentioning Seaborg Technologies — open to read from the original sources.

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Market sentiment

What the market is saying about Seaborg Technologies

An AI-synthesized read of the highest-engagement posts about Seaborg Technologies on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

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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