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Top 15 CleanTech Startup Investors in Denmark in February 2025

Last updated: Feb 2025 A list of 15 angel investors and VC (Venture Capital) funds that invest in Cleantech startups based in Denmark. We rank investors based on the number of investments they made in Cleantech companies from Denmark. We update this investor list every month.

Top 15 CleanTech Startup Investors in Denmark in February 2025

Investor	CleanTech Denmark investments
BackingMinds	2
Satgana	1
Nucleation Capital	1
The Footprint Firm	1
Climentum Capital	1
EQt Foundation	1
Breakthrough Energy Ventures	1
At One Ventures	1
Tamarack Global	1
Starlight Ventures	1
Jon Erik Reinhardsen	1
Propeller Investments	1
Vaekstfonden	1
Engine Ventures	1
Angular Ventures	1

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Investment focus

Medical Device, SaaS, Information Technology
Seed, Funding Round, Pre-Seed
Sweden, Denmark, Finland

Portfolio highlights

Uniqkey — Uniqkey provides a security management platform that automates employee logins to make businesses secure and productive. It simplifies employee security while empowering companies with enhanced control over their cloud infrastructure, access security, and employee management.Recognized as the easiest tool, Uniqkey removes friction from employees’daily workflows by automating time-consuming authentication and security tasks, thereby increasing productivity. Its intuitive and user-friendly interface makes Uniqkey the perfect choice for employees.Uniqkey combats the most significant threats to company infrastructure by safeguarding critical systems and company credentials with state-of-the-art encryption. It also offers unique insights and a comprehensive view of IT infrastructure, employee access, and security scores, making it a valuable tool for IT teams to monitor security policies and confidently assess the impact of awareness campaigns.With powerful integrations and synergies with existing infrastructure such as Microsoft, IT managers can quickly provision or de-provision users for seamless onboarding and offboarding, all while protecting their entire IT infrastructure with advanced encryption.Trusted by 500+ European businesses and ranked as a Top 50 Global Security Solution by G2, our platform is becoming Europe's preferred business password and access management solution.
NitroVolt — NitroVolt: the next generational step of sustainable ammonia.
Serviceform — Welcome to future of communication - the truly all-in-one conversion and management software built for established businesses. Start now!

Satgana is a Climate Tech VC firm on a mission to invest in planet-positive startups building the Future of Earth.

Investment focus

Electronics, B2B, Biotechnology
Pre-Seed, Seed
Kenya, France, Austria

Portfolio highlights

Wattnow — Wattnow is a real-time monitoring solution that provides a breakdown of energy spending to identify wasteful trends.
NitroVolt — NitroVolt: the next generational step of sustainable ammonia.
Brineworks — Brineworks is making sustainble CO2 and H2 production afforable. The building blocks for green fuels - from seawater.

Nucleation Capital is a venture capital firm. it seeks to invest in advanced nuclear and deep decarbonization sectors.

Investment focus

Nuclear, Software, Machine Learning
Seed
United States

Portfolio highlights

Nuclearn — Nuclearn is a software company delivering AI solutions for automating Nuclear Industry tasks.Nuclearn was established in 2020 by two esteemed veterans from the nuclear industry, Jerrold Vincent and Bradley Fox, driven by their passion for innovation. With backgrounds in nuclear engineering, business intelligence, and process improvement, theco-founders came together to create the industry's pioneering in-house data science team at the Palo Verde Nuclear Generating Station in 2016.Their remarkable work quickly gained recognition throughout the nuclear sector, resulting in a US-issued patent and the prestigious NEI Best of the Best, Top Innovative Practice Award in 2020. Fueled by this innovative spirit and a mission to benefit the entire nuclear power industry, Nuclearn was born to provide a safe and efficient way to automate critical processes in the field.
Aalo Atomics — Creating abundant and dependable clean energy to power humanity for generations.
Blue Energy — Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.

The Footprint Firm is an advisory and investment company with a sole focus on sustainability.

Investment focus

Software, Finance, Renewable Energy
Seed, Pre-Seed
Denmark

Portfolio highlights

Cellugy — Biomaterial to Replace Plastic
Dynelectro — Dynelectro is a green energy technology company that focuses on reducing CO2 emissions by transforming fossil fuels into green fuels.
Kvasir Technologies — Imagine a world without fossil fuelsThis is where we come in! We have invented a solution that makes this possible already in 2050.

A Venture Capital firm investing into European early-stage tech companies attacking CO2 emissions

Investment focus

CleanTech, Clean Energy, Biotechnology
Seed, Series A, Series B
Sweden, Spain, Austria

Portfolio highlights

ecoLocked — ecoLocked is your partner to create a climate-positive built environment. We develop CO2-optimized recipes for concrete based on carbon-negative biochar admixes. Our admixes allow to store captured CO2 in buildings, reduce direct emissions from concrete production, and provide multiple functional benefits, such as improved thermal insulation.
Rodinia Generation — Rodinia Generation offers environmental clothes manufacturing technologies that helps to eliminate overproduction in the fashion sector.
ZeroPoint Technologies — ZeroPoint Technologies AB was created in 2016 as a spinout from Chalmers University of Technology. The Intellectual Property Portfolio related to computer memory management was the acquired from the University and transferred into a new startup.The Technology, ideas and many of the people behind and with ZeroPoint comes from Professor PerStenströms research group, which is internationally recognized for excellence within high-performance Computing. Since its creation, ZeroPoint has attracted skilled people from industry, finance and the startup community and raised its’ first round of Venture Capital in 2016.

EQT, a purpose-driven global investment organization with a Nordic heritage, the foundation exists to push the frontiers of impact.

Investment focus

AgTech, Farming, Agriculture
Seed
Malaysia

Portfolio highlights

NitroVolt — NitroVolt: the next generational step of sustainable ammonia.
Qarbotech — QarboGrow Photosynthesis Enhancer Sustainable and Efficient Farming Uncover the significance of photosynthesis and learn how our product can enhance it to new heights! Learn More https://www.youtube.com/watch?v=zCp_pY8CzLg Curious about how our patented nanotechnology-based solution revolutionizes photosynthesis? What is photosynthesis and why is it inefficient? Photosynthesis is nature's remarkable process, where plants harness the power of sunlight
Concert Bio — Concert Bio helps businesses manage their microbiome. We combine monitoring with analytics to develop interventions that improve the microbiome that matters to you. Our pilot program for CEA growers is currently live and accepting partners, see website for details.

Focused on developing and deploying the critical climate solutions our world needs to reach net-zero emissions by 2050.

Investment focus

Energy, Renewable Energy, Manufacturing
Series A, Series B, Funding Round
United States, Canada, United Kingdom

Portfolio highlights

H2SITE — We provide fully integrated systems to produce on-site high quality hydrogen.
Mangrove Lithium — Mangrove Lithium is a ground-breaking refining platform that redefines the industry standard for battery grade lithium refining
Stoke Space — STOKE Space Technologies seamlessly connecting earth and space.

At One Ventures finds, funds, and grows teams to catalyze a world where humanity is a net positive to nature.

Investment focus

Energy, Sustainability, Manufacturing
Seed, Series A, Series B
United States, United Kingdom, Australia

Portfolio highlights

Adden Energy — Adden Energy is a developer of stable, lithium-metal, solid-state batteries. With demonstrated charge times as low as 3 minutes and capacity retention for over 10,000 cycles in a lab-scale cell, Adden Energy develops cutting-edge technologies to enable mass adoption of EVs around the world and contribute greatly to a cleaner future.
Blue Energy — Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.
Mojave Energy Systems — Mojave the latest in HVAC innovation. Help the Climate. Reduce Energy Use. Improve Indoor Comfort. Perform Reliably. Lower Costs.

Tamarack Global operates as an investment firm that invests in new markets and new economies. The frim specializes in the fields of finance, financial services, and hedge funds.

Investment focus

Aerospace, Clean Energy, CleanTech
Seed, Series A, Series B
United States, Denmark

Portfolio highlights

Blue Energy — Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.
Rainmaker Technology — Rainmaker provides water for farms, watersheds, and ecosystems, fortifying growth and stewarding the natural world.
Impulse Space — Economical and nimble last-mile space payload delivery

Starlight is a venture capital firm for founders addressing the world’s most pressing challenges & opportunities. We partner early with unstoppable entrepreneurs leveraging breakthrough science and technology to pursue progress at scale in four main areas: the energy transition, industrializing synthetic biology, space technology, and novelcomputing & communications platforms.Starlight was founded in 2017 and is headquartered in Miami, Florida.

Investment focus

Biotechnology, Energy, Health Care
Seed, Series A, Funding Round
United States, Finland, Italy

Portfolio highlights

Ephos — Designing and manufacturing glass-based integrated photonic circuits that power the most advanced classical and quantum devices
Blue Energy — Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.
Electrified Thermal Solutions — Electrified Thermal Solutions, Inc. is developing the Joule Hive: a new energy storage technology that converts surplus zero-carbon electricity into heat.

Jon Erik Reinhardsen is a Norwegian business executive currently holding positions including Chairman of the Board of Equinor ASA, board member of Telenor ASA, and other senior appointments. Reinhardsen was the Chief Executive Officer of Petroleum Geo-Services (PGS) from 2008 to 2017, providing geophysical and reservoir services and data.

Investment focus

SaaS, Energy, Analytics
Seed
Denmark

Portfolio highlights

Aegir Insights — We enable strategic decision-making about offshore wind with powerful commercial tools and bespoke research. Discover our latest insights online.

Bringing Civility Back to Airports - Propeller Airports is dedicated to investing in, developing, and managing airport infrastructure to provide a best-in-class travel experience.

Investment focus

Nuclear, CleanTech, Clean Energy
Series A
Denmark

Portfolio highlights

Blue Energy — Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.

Vaekstfonden – The Danish Growth Fund – is the Danish state's investment fund. We strive to improve access to risk capital to enable Danish businesses to innovate, and to generate growth and new jobs. In close collaboration with banks and domestic and international private investors, we finance companies from all sectors nation-wide. We canaccompany you for the entire journey – from your company’s infancy through growth phases to expansion abroad and even to an initial public offering.

Investment focus

Software, Information Technology, SaaS
Seed, Funding Round, Pre-Seed
Denmark, United States, United Kingdom

Portfolio highlights

Wedio — Buy & Rent professional film equipment from trusted creators near you. Buy & rent cameras, lenses, drones with Global Coverage. Explore
Keepit — The Keepit Cloud is the most cost-effective solution on the market with 20+ years of experience. Learn more about our next-level data protection services
kleen hub — Kleen hub is Denmark's first digital return system for reusable coffee cups and food packaging.

We invest in Tough Tech founders.

Investment focus

Energy, Biofuel, Chemical
Seed, Series A, Series C
United States

Portfolio highlights

Addis Energy — Addis Energy is on a mission to alter the way we feed and fuel our society, harnessing the Earth's potential for clean ammonia production.
T-robotics — The Future of Robot Programming
Copernic Catalysts — Mantel is developing the material solution to carbon capture

Angular Ventures is a specialist venture capital firm committed to founders redefining global markets.

Investment focus

Software, SaaS, Machine Learning
Seed, Series A, Pre-Seed
Israel, United States, United Kingdom

Portfolio highlights

Beebop — Beebop is a software designed for power grid orchestration. Beebop's orchestration middleware enables utilities, grid operators, manufacturers, and VPP technology leaders to manage residential asset fleets, enhancing value delivery to end-customers.
Root Signals — Root Signals lets you create, optimize and embed the needed evaluators into your code, so you can continuously monitor the behavior of LLM automations in production.
Blue Energy — Blue Energy is a nuclear power plant company that provides reliable, clean, and abundant electricity.

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