Top 10 Clean Energy Startup Investors in Denmark (August 2026)

Portfolio highlights

• Superlight — Superlight develops purpose-built commercial vehicles designed to change the economics and physics of middle-mile logistics. The company engineers trucks from first principles using a lightweight aluminium monocoque, composite materials, and aerospace-inspired structural design instead of traditional steel ladder chassis. Its platform replaces manymechanical components with independent electric drive, a digital electrical architecture, and software-defined control systems. Superlight integrates an AI-driven fleet platform called ALIS that uses real-time vehicle data to predict maintenance, schedule service, and optimise uptime. The Superlight Production System applies modular, bonded aluminium manufacturing and a digital twin called SuperVisor to monitor assembly quality. The vehicles aim to increase payload volume, reduce energy cost per kilometre, and lower operational risk for commercial fleets.
• Blue Energy — Modular power plants for modular nuclear reactors
• Foundation Alloy — Foundation Alloy makes better parts, faster, for modern engineering.

Portfolio highlights

• Finless Foods — Discover sustainable, cell-cultured seafood alternatives like bluefin tuna at Finless Foods, committed to ocean health and responsible food innovation.
• Blue Energy — Modular power plants for modular nuclear reactors
• Colossal Biosciences — The science of genetics. The business of discovery.

Portfolio highlights

• Blykalla — Blykalla is developing and building small modular reactors to deliver the next generation of clean energy. We take leading research to industrialization through our Swedish Advanced Lead Reactor (SEALER).
• 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.

Portfolio highlights

• Ammobia — Ammobia's advanced reactor technology enables economical ammonia production at any scale. 50% lower CapEx, 10-40% lower costs for fuel, fertilizer, and energy.
• Thea Energy — Discover Thea Energy, a fusion energy company reinventing the stellarator to create a limitless source of zero emission energy for a sustainable future.
• Commonwealth Fusion Systems — The fastest path to clean, limitless fusion energy.

Portfolio highlights

• Medida AI — Medida is an AI virtual measuring system that provides accurate digitized measurements for home renovation companies.
• Reco — SaaS Security Leverage Reco's context analysis to streamline SaaS security, minimize data and identity risk, and automate remediation
• groundcover — Instantly pinpoint bleeding issues in production & troubleshoot quickly with groundcover. All with zero code changes.

Portfolio highlights

• iiba — Iiba is a geospatial platform that specializes in providing location information related to child-rearing.
• Two — Buy Now, Pay Later for your business customers. Two makes it easy and safe to offer invoice as a payment method on your e-commerce site.
• Homethings — Single-use plastic is bonkers. Homethings makes cleaning products that make sense. No more shipping water in plastic bottles. We send non toxic cleaning tabs so that you can refill over and over again using your tap.

Portfolio highlights

• Rilian Technologies — Rilian develops cybersecurity and defense technology platforms that enable organizations to deploy, integrate, and operate advanced security tools across complex and regulated environments. The company provides an AI-driven security orchestration platform that unifies multiple cybersecurity tools into a single interface, allowing analysts toautomate workflows, monitor threats, and respond to incidents more efficiently. Its offerings include systems for automated deployment and compliance that allow security technologies to operate in air-gapped, sovereign, and highly regulated environments without relying on traditional cloud infrastructure. The company also maintains a curated ecosystem of cybersecurity tools that are pre-integrated and validated for use in mission-critical settings, reducing complexity in adoption and integration.
• Hark — We are building the most advanced personal intelligence in the world.
• Blue Energy — Modular power plants for modular nuclear reactors

Portfolio highlights

• Blue Energy — Modular power plants for modular nuclear reactors

Portfolio highlights

• Mandrake Bio — Make Life Programmable
• Smart Joules — Smart Joules is an energy management company.
• BiofuelCircle — BiofuelCircle is a cloud based digital ecosystem for bioenergy supply chain that connects Rural & Industrial economies. Discover, buy, sell, transport, settle transactions for biomass and biofuel using our Web or Mobile Application

Portfolio highlights

• Sourcepulse — Your early warning system for software delivery (YC S23)
• Giant — The Giant app turns screen time into personalized, interactive stories starring your child. Safe, ad-free, and designed to spark imagination.
• NORDA Dynamics — NORDA Dynamics is an autonomous UAV piloting system for carrying out missions in areas with limited connectivity.