28 Energy & Nuclear Startups in Denmark to Watch (and Work for) in 2023
Energy & Nuclear is rapidly transforming the way we think about and interact with the world around us. Across Europe, but particulartly in Denmark, Energy & Nuclear startups are pushing boundaries, fixing problems worth solving, and reshaping the contours of their industry.
As we get into the end of 2023, we've curated a list of the top Energy & Nuclear startups in Denmark that are making waves. We update this list monthly by tracking activity in our database of 17,000 technology companies in Europe and sort them dynamically using our Seedtable score, ensuring objectivity.
Changelog
Last update: December 7, 2023. Added companies, investors and rounds. See changelog .
Rankings are calculated using our Seedtable score – a 1 to 100 score that uses quantitative and qualitative data points (examples are money raised or employees over time) to signal the momentum behind a company. A score closer to 100 indicates a company worth watching closely.
Featured companies in Company
54Featured
Klimate empowers companies to compensate for their unavoidable emissions through portfolios of carbon removal projects.
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Latest Funding
$3.7 Million · Seed
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Employees
1 to 10
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Investors
Export and Investment Fund, Eneco Ventures, Helen Ventures, Rockstart, Rockstart
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Business Model
B2B, MARKETPLACE
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Industries
Climate Tech & Green Tech, Fintech, Energy & Nuclear
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Locations
Copenhagen
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Contact
•••••@klimate.co
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54Featured
SoundBoks is a Copenhagen-based hardware company developing and selling battery-powered speaker.
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Latest Funding
$8.4 Million
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Employees
11 to 50
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Investors
Heartcore
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Business Model
B2C
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Industries
Hardware, Music and Audio, Energy & Nuclear, Manufacturing
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Locations
Copenhagen
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Contact
•••••@soundboks.com
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50Featured
Thermal energy storage
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Latest Funding
$11 Million · Seed
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Employees
11 to 50
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Investors
Heartland
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Business Model
B2B
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Industries
Climate Tech & Green Tech, Energy & Nuclear, Manufacturing
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Locations
Copenhagen
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Contact
•••••@hyme.energy
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Full list of Energy & Nuclear startups in Denmark
50INFUSER is a clean-tech company that develops climate solutions for buildings and industry.
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Latest Funding
$6 Million
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Industries
Climate Tech & Green Tech, Energy & Nuclear, Manufacturing
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Locations
Copenhagen
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Employees
11 to 50
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Business Model
B2B
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Investors
CAPNOVA
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Contact
•••••@infuser.eu
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50Monta is the operating platform powering the EV charging ecosystem serving drivers, companies, cities, and the electricity grid.
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Latest Funding
$30 Million · Series A
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Industries
Climate Tech & Green Tech, Hardware, Mobile, Mobility & Transportation, Energy & Nuclear, Electric Vehicles
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Locations
Copenhagen
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Employees
101 to 250
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Business Model
B2B, B2C, MARKETPLACE
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Investors
Creandum, Pale Blue Dot, Headline, byFounders
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Contact
•••••@monta.com
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50Nordsense is a SaaS-based smart waste management platform that helps with the waste collection processes.
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Latest Funding
$8.5 Million
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Industries
Hardware, Energy & Nuclear, Manufacturing, Internet of Things, Enterprise Software, Wearables
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Locations
Copenhagen
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Employees
11 to 50
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Business Model
B2B, SAAS
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Investors
New Enterprise Associates
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Contact
•••••@nordsense.com
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46Blue World Technologies is a fuel cell manufacturer especially in methanol fuel cells as an alternative to non-renewable fuels.
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Latest Funding
$37 Million · Series B
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Industries
Climate Tech & Green Tech, Mobility & Transportation, Energy & Nuclear, Manufacturing
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Locations
Aalborg
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Employees
11 to 50
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Business Model
B2B
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Investors
Breakthrough Energy Ventures
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Contact
•••••@blue.world
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40Mass manufacturing of thorium reactors.
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Latest Funding
$21 Million · Seed
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Industries
Deep Tech, Energy & Nuclear
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Locations
Copenhagen
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Employees
51 to 100
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Business Model
B2B
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Contact
•••••@copenhagenatomics.com
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39Reel empowers all companies to procure renewable electricity that makes a real difference for the climate.
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Latest Funding
$2.4 Million · Pre Seed
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Industries
Climate Tech & Green Tech, CPG & Consumer Goods, Energy & Nuclear, Ecommerce
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Locations
Copenhagen
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Employees
1 to 10
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Business Model
B2B, B2C, MARKETPLACE
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Investors
UVC Partners
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Contact
•••••@reel.energy
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37InCommodities offers renewable energy, power & gas, intraday trader, and finance services.
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Latest Funding
$16 Million
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Industries
Fintech, Energy & Nuclear
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Locations
Aarhus
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Employees
51 to 100
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Business Model
B2B, MARKETPLACE
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Investors
Goldman Sachs
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Contact
•••••@incommodities.com
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31Aquaporin focuses on water purification and desalination of seawater by means of industrial biotech techniques and thinking.
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Industries
Health Tech, Biotech, Energy & Nuclear, Manufacturing
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Locations
Copenhagen
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Employees
51 to 100
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Business Model
B2B
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Contact
•••••@aquaporin.com
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29Nordic Power Converters has developed a power converter that is five times smaller and lighter and has 2-5 times longer lifetime
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Latest Funding
$910 Thousand · Pre Seed
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Industries
Hardware, Energy & Nuclear, Manufacturing
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Locations
Copenhagen
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Employees
1 to 10
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Business Model
B2B
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Investors
PreSeed Ventures
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Contact
•••••@nordicpowerconverters.com
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29SecondCircle captures CO2 and helps companies go carbon neutral transforming their CO2 emission into valuable products.
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Latest Funding
$1.2 Million · Pre Seed
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Industries
Energy & Nuclear, Manufacturing
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Locations
Copenhagen
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Employees
1 to 10
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Business Model
B2B
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Investors
Atlantic Labs
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Contact
•••••@secondcircle.bio
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28LastObject is a Danish manufacturing company.
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Latest Funding
$3 Million · Seed
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Industries
Climate Tech & Green Tech, Health Tech, Energy & Nuclear, Manufacturing, Ecommerce
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Locations
Copenhagen
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Employees
11 to 50
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Business Model
B2C
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Contact
•••••@lastobject.com
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28Transformer monitoring platform.
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Latest Funding
$3.2 Million · Seed
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Industries
Energy & Nuclear
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Locations
Copenhagen
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Employees
1 to 10
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Business Model
B2B
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Contact
•••••@oktogrid.io
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26Data-driven, automated energy and climate optimization for companies.
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Latest Funding
$3.6 Million
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Industries
AI, Machine Learning, Data and Analytics, Energy & Nuclear, Business Intelligence
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Locations
Aarhus
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Employees
1 to 10
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Business Model
B2B, SAAS
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Investors
byFounders
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Contact
•••••@ento.ai
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25ZeroNorth is a Clean Tech company that is using data connected on a digital platform to support shipping’s decarbonisation.
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Latest Funding
$50 Million · Series B
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Industries
Climate Tech & Green Tech, Mobility & Transportation, Energy & Nuclear, Business Intelligence
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Locations
Copenhagen
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Employees
101 to 250
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Business Model
B2B, SAAS
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Contact
•••••@zeronorth.com
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18Climaider is a growing subscription-based carbon offset company.
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Latest Funding
$300 Thousand · Pre Seed
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Industries
Climate Tech & Green Tech, Fintech, Mobile, Energy & Nuclear, Business Intelligence
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Locations
Copenhagen
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Employees
11 to 50
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Business Model
B2B, B2C, SAAS
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Contact
•••••@climaider.com
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18Greener, Cleaner and Smarter Waste Collection Worldwide
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Latest Funding
$1.2 Million
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Industries
Hardware, Machine Learning, Mobile, Energy & Nuclear, Manufacturing, Supply Chain & Logistics
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Locations
Copenhagen
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Employees
11 to 50
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Business Model
B2B, SAAS
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Contact
•••••@wastehero.io
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17Cellugy operates as a biotechnology startup.
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Latest Funding
$2.9 Million · Seed
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Industries
Biotech, Energy & Nuclear, Manufacturing
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Locations
Aarhus
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Employees
11 to 50
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Business Model
B2B
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Contact
•••••@cellugy.com
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15Aegir Insights helps clients make better decisions about offshore wind investments, faster.
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Industries
Climate Tech & Green Tech, Data and Analytics, Energy & Nuclear, Business Intelligence
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Locations
Copenhagen
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Employees
11 to 50
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Business Model
B2B, SAAS
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Contact
•••••@aegirinsights.com
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15Flow Loop is a privately held company that provide smart showering solutions for any bathroom.
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Industries
CPG & Consumer Goods, Energy & Nuclear, Manufacturing
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Locations
Copenhagen
- Employees
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Business Model
B2B
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Contact
•••••@flow-loop.com
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12AquaGreen is an R&D engineering company within the cleantech industry.
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Latest Funding
$1.2 Million
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Industries
Climate Tech & Green Tech, Health Tech, Agritech, Biotech, Deep Tech, Energy & Nuclear, Manufacturing
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Locations
Roskilde
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Employees
11 to 50
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Business Model
B2B
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Investors
Nordic Alpha Partners
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Contact
•••••@aquagreen.dk
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10ALGIECEL has been founded to take part in the challenge of transforming today´s CO2 emissions into feasible business opportunities
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Latest Funding
$650 Thousand · Pre Seed
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Industries
Climate Tech & Green Tech, Health Tech, Biotech, Energy & Nuclear, Manufacturing
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Locations
Odense
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Employees
1 to 10
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Business Model
B2B
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Contact
•••••@algiecel.com
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10NRGi is a leading renewable energy company.
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Latest Funding
$270 Thousand · Pre Seed
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Industries
Climate Tech & Green Tech, Energy & Nuclear
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Locations
Aarhus
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Employees
101 to 250
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Business Model
B2B, MARKETPLACE
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Contact
•••••@nrgi.dk
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7Waste heat driven cooling technology designed especially for maritime use
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Industries
Energy & Nuclear, Manufacturing
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Locations
Svendborg
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Employees
1 to 10
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Business Model
B2B
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Contact
•••••@cool4sea.com
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7We develop a highly capable battery management system that allow for dynamic cell stack reconfiguration and micromanagement of battery cells
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Industries
Climate Tech & Green Tech, Hardware, Mobility & Transportation, Energy & Nuclear, Manufacturing, Electric Vehicles
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Locations
Roskilde
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Employees
11 to 50
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Business Model
B2B
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Contact
•••••@nervesmartsystems.com
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7VisBlue is a private production and development company that created VisBlue battery solution, a Vanadium based redox flow solution.
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Industries
Climate Tech & Green Tech, Energy & Nuclear, Manufacturing
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Locations
Aarhus
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Employees
1 to 10
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Business Model
B2B
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Contact
•••••@visblue.com
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