GLYON is developing a CO₂-powered textile-to-textile recycling technology to help brands, fiber producers, and recyclers solve the growing textile waste crisis with a breakthrough chemical recycling process that turns waste into virgin-quality raw materials for new fibers—without fossil fuels. We address the massive problem of textile waste, a global crisis where over 92 million tonnes of textile waste are discarded each year—most of it ending up in landfills or incinerated. This contributes to major pollution issues but also forces the textile industry to continue its dependence on virgin fossil-based materials. Our solution targets fiber producers, brands, and recyclers who need circular raw material solutions. Our CO₂-based chemical recycling process breaks down polyester textiles into building blocks and leaves other fibers like cotton intact. Both PET building blocks and cotton can be used to produce new, high-quality fibers without the need for virgin oil and reducing water consumption and CO₂ emissions.

We're making innovations for assessing marine biodiversity, essentially building underwater cameras and using AI to count fish. We're in the midst of a biodiversity crisis, the wildlife population has shrunk by 73% in the last 50 years alone, and it is especially bad in marine environments. At Anemo we monitor the effect of man-made structures on the marine environment to help our clients comply, quantify impacts, and continually improve nature-positive outcomes.

We are changing the world! Copenhagen Atomics is building the next generation nuclear reactors for the world based on molten salt technology. This provides a cheap and clean energy source that aims to change the energy system in general. A thorium based molten salt reactor is small, efficient, safe and is burning the nuclear waste from current nuclear plants.

Axiom Novus is a specialised engineering firm focused on the energy and renewables sector. We provide expert advisory and technical solutions, helping clients navigate complex engineering challenges with clarity and precision. Our approach emphasises practical, professional communication without unnecessary jargon, ensuring that our clients receive clear, actionable insights tailored to their needs. Our focus is on enabling our societies to implement the green transition efficiently in a socially and commercially sustainable way.

PhaseTree is a pioneering deep-tech startup from the Technical University of Denmark (DTU), founded in 2021 with a mission to revolutionize materials discovery for the energy industry. Traditional development of new materials—such as advanced battery technologies and catalysts for hydrogen production—can take decades, creating a significant bottleneck in the global effort to combat climate change. PhaseTree aims to change that. By combining cutting-edge computer simulations, lab automation, and artificial intelligence, PhaseTree dramatically accelerates the research and development process, unlocking breakthrough materials at unprecedented speeds. Our innovative approach not only helps build a more sustainable future but also creates unique business opportunities in the rapidly evolving clean energy sector. With a team of world-class scientists and engineers, PhaseTree stands at the forefront of AI-driven materials discovery, ensuring that the next generation of energy technologies arrives faster, more efficiently, and at lower costs.

Aerial Tools is a hardware and software startup that develops a heavy duty modular drone. The unmanned aircraft system will allow the user to extract data from multiple sensors, while facilitating the integration of ML & AI tools. Our primary target markets are the monitoring and inspection of the renewable energy and agriculture sectors. There, we can contribute towards a cleaner environment and more sustainable water use.

GRAD ApS is a Danish startup on a mission: to sustainably refine the global beverage cooling industry. Located on Vesterbro in Copenhagen and based on its patent pending technology and award winning design, GRAD has developed a portfolio of “Perfect Serve” cooling products for the global hospitality industry. The product has gained international traction and the company is currently scaling up fast on several markets globally. GRAD is an international team of 10 with backgrounds varying from engineering and design, to business and supply chain. It is an open, friendly, trusting and hardworking environment where coffee is always flowing, and (perfectly cooled) drinks can be enjoyed on a Friday at the home-built office bar.

Responsibly is a sustainability tech start-up with vision of making every purchase in the world responsible 🌍 There's no bigger problem out there than the climate, and procurement represents a big part of the solution - when purchase decisions are made on the background of responsible data like CO2 footprint, suppliers have a huge incentive to change. However, procurement is becoming overloaded with complexity. Different frameworks, different data sources, different coverage, making it difficult to make purchase decisions to improve your responsibility profile and scope 3 emissions. At Responsibly, we're trying to solve this issue by using leading technologies and data science, to build a supplier data platform that makes it easier to source responsibly. We're founded by two serial entrepreneurs with previous successes like Dixa and Ofload, and have received pre-seed funding from some of Europe's top VCs and angels. We're now building a top-tier team to tackle this big thing called climate, and have fun while we're doing it 🤘

Hybrid Greentech inspires organisations to be green pioneers and invest in energy storage so we together can reach 100% renewable energy. We want to make it simple to leverage the full revenue potential for energy storage. We and our customers are in an emerging renewable market that will face 30 fold growth over the coming years. Hybrid Greentech is a 4-year old company entering the scale-up phase, developing an AI-driven software ecosystem for sizing and real-time optimisation of energy storage, and Power to X solutions in energy markets. We are a team of 10 people with strong domain knowledge in renewable energy, energy storage, machine learning, and AI who want to revolutionise energy storage, grid-scale battery systems, and Power to X flexibility in energy and power markets to balance the generation and the consumption of the electric power systems with large shares of renewable energy.

Enabling the bioindustrial revolution with the fastest enzymes. Many of the hardest climate and environmental problems can be solved through synthetic biology. But biosolutions are held back by the enzyme efficiency bottleneck. The ENZIDIA Enzyme Engineering Platform will address this with 10^4 to 10^7 times higher efficiency than current technologies.

2030 Builders – Empowering People to Drive Sustainable Change At 2030 Builders, we believe sustainability isn’t just a target—it’s a mindset that reshapes how organisations grow, compete, and lead. Our mission is to help companies transform their workforce into a resilient, purpose-driven community capable of achieving ambitious strategic and ESG goals. Through our user-centric platform, we combine gamified learning, 200+ expert sustainability topics, and practical tools to embed sustainability into culture, strategy, and everyday decision-making. From decarbonization to ethical governance, we make complex topics clear, actionable, and inspiring—so people at every level can drive real change. Trusted by forward-thinking global enterprises, we empower employees to co-create solutions, build ownership, and turn risk into opportunity. By connecting knowledge with action, we help organisations accelerate the journey to net zero, strengthen their reputation, and attract the next generation of purpose-driven talent. At 2030 Builders, you won’t just work on a product—you’ll be part of a movement to reshape how businesses impact the world. Together, we’re building a greener, better, and more resilient future—one empowered employee at a time.

Mission: We provide real-time and accurate measurement solutions to optimize environmental and chemical processes to achieve a greener, cleaner world. Vision: Making mass spectrometry accessible to everyone for any test environment. Description: Using our proprietary microchip inlet technology, we are able to bring mass spectrometers out of the laboratory and into the real-world. We already provide benchtop analysis systems for electrochemistry and battery research which we sell to research institutions around the world. We have tested and are currently developing the commercial version of an online industrial sensor version of our system for real-time measurements in biogas production facilities and wastewater treatment plants.

Envira is a Copenhagen-based climate-tech company that turns satellite and environmental data into decision-ready intelligence for finance, government, and agriculture. By combining Earth Observation, advanced analytics and deep regulatory expertise, we translate complex, forward-looking signals into clear, auditable answers — not just raw layers — so organisations can quantify risk, build resilience and act with confidence. Read more on www.envira.dk

Our carbon emissions are still increasing, and the evidence for dramatic climate change is all around. We want to do our part in solving it. In Europe, 12% of our carbon emissions come from heating our homes - just as much as using our cars. Getting those emissions to zero will be a gargantuan task: retrofitting 90 million buildings across many countries is a hard problem. Lun’s mission is to decarbonise homes faster, by building an operating system for tradespeople in the European energy renovation industry. Our first task is to make heat pump installations an absolute no-brainer for plumbers and electricians.

FuelVision is a climate tech startup building a more sustainable aviation industry. We bridge the gap between flight data and real operational decision-making. We are building an intelligence platform that processes Flight Data Monitoring at scale. Using machine learning and behavioural science, we turn raw data into personalised, actionable insights for airlines and pilots. Our solutions give airlines fleet-wide optimisation and risk awareness, and provide pilots with an engaging mobile app where flying becomes measurable, improvable and meaningful. Think Strava for pilots: track your impact, understand how your technique influences each flight and take pride in flying at your best. We are forming a small team of curious, ambitious builders who want to work on something real and consequential. You will help shape a product with tangible operational impact, move fast and work closely with pilots and aviation experts to make data genuinely useful. If you want to put your skills into something that matters in the real world, FuelVision could be the place for you.