Kleen Hub is a Copenhagen-based circular tech company building Tap & Reuse™ — a frictionless reuse system that makes reusable packaging work at scale. Our platform combines simple hardware with a lightweight software layer to enable fast, reliable reuse without the usual barriers: no app, no user registration, and no deposit handling required. We help venues and operators (cafés, campuses, stadiums, airports, corporate sites and more) replace single-use packaging with reusable cups and containers through an operationally simple setup. Tap & Reuse™ supports multiple return flows (smart return stations, return bins, handheld scanning and washing-site verification), delivers high return rates in closed and semi-closed environments, and provides clear reporting for operations and ESG. Kleen Hub works with leading partners and distributors across Europe and has deployed systems in high-volume environments, proving that reuse can be convenient for users and manageable for staff. Our mission is to remove friction from reuse and accelerate the transition away from single-use packaging — by making reuse as easy as tapping a card.

Behold helps animals change people. Our technology turns everyday wildlife encounters into moments of discovery. It meets people where they are, whether at home, on their devices, or in their communities. It shifts how they see nature and their role in it. It is entertainment with a purpose, designed to inspire and influence behaviour in subtle but meaningful ways. But we are not just here to tell stories. We are building a network of thousands of garden cameras, creating the largest database of residential wildlife sightings. A powerful tool for conservation, citizen science, and understanding the changing natural world. Our first product, Behold Cam-1, became a massive success on Kickstarter – hitting its funding goal in under 2 hours, and raising almost $400k in pre-orders. We're now bringing that product to market. It’s an opportunity to join at the earliest stages—with all the challenges and rewards that come with it.

Perma Padel is on a mission to become a leading global racket sports brand and equipment manufacturer, defined by an unwavering commitment to premium performance, sustainability, and innovation. Perma Padel is the first to apply a novel industrial manufacturing process for padel rackets using 100% recyclable thermoplastic carbon fiber, unlocking a new era of performance, sustainability, and scalability. By moving from manual labor to precision automation, we slash manufacturing time significantly, while delivering a product that is twice as durable as the competition. Our Core Innovations Include: MonoFrame™: A supercar-inspired unibody design that removes the traditional hollow internal frame. This creates a stronger racket with a larger, more forgiving sweet spot. OmniCore™: High-grade foam from edge to edge. This eliminates dead zones, maximizes energy return, and significantly reduces vibration to lower the risk of injury. FutureFiber™: Our proprietary thermoplastic carbon fiber allows for a fully circular model. Unlike toxic epoxy-based rackets, our materials are 100% recyclable and enable zero-waste manufacturing. We have already secured a launch partnership with Denmark's biggest retailer and have an organic waitlist of over 700 players. We are currently finalizing product development for a Summer 2026 launch.

PurCity's patent pending solution (GapS), consists of novel industrial facade panels that are great substitutes for exterior facades/flat surfaces of any New/Existing buildings. Leveraging from chimney effect/natural ventilation, polluted air is naturally sucked into the panels and forced to pass through a harmless chemical process that traps CO2, particulate matter PM2.5/10 & inorganic gases. Then clean air will be delivered into the building through the Air conditioning (HVAC) system. GapS utilizes smart monitoring and control solutions, to optimize its performance. The collected polluted liquid is continuously recycled, generating valuable byproducts like Hydrogen, pure O2 and CO2 that are sellable in the market, benefiting sectors such as food, cement and agriculture.

We are on a mission to cool down the planet. The 0-Mission is a B2B market place aiming to accelerate the green transition. We offer a subscription service for renewable energy. We are venture-backed, have product-market fit and are scaling our business. We work from BloxHub in central Copenhagen and are looking to attract our next colleagues.

NOON Ventures is a Copenhagen-based early-stage investor established in 2020. We invest in proven transformative technologies with the potential to significantly impact environmental or climate challenges. Our aim is to become the preferred partner for green entrepreneurs, and we do so by limiting our investments to few companies and working day-to-day with each of them – a fundamentally different approach than traditional early-stage investors. We believe that it takes much more than capital for companies to succeed - commercial experience, execution power, access to the right talent, network, and partners to name a few. We typically engage ourselves in all aspects of the business and do real work together with the founders applying the experience of our team, investors, and specialist advisors across mission-critical disciplines from strategy to customer introductions, and financing activities. NOON Ventures aspires to be true co-developers of businesses alongside the entrepreneurs, and we dedicate the time required to build lasting businesses.

Making CFO's better by offering a fast and cloud based Consolidation solution. Konsolidator® streamlines the financial consolidation and reporting process which enables the finance department to deliver data at a higher strategic level. Customers vary from small size, privately owned companies to large listed corporations - all with the same goal: To simplify the consolidation process and get a "best-of-breed" tool. Konsolidator® is a cloud-based, best-of-breed, SaaS consolidation and reporting tool that standardizes and streamlines the consolidation process through simple innovative functionality.

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.

Tollson has developed a compact, continuous and energy-efficient technology for filtration and dewatering of a wide range of liquids. Tollson offers an mobile filtration plant for sludge and sediments dewatering, enabling wastewater utilities to streamline their dewatering processes. Our cutting-edge filtration technology is also designed for processing of food and beverages, pharmaceuticals and chemicals as well as many other industrial fields. Tollson envisions utilizing its technology to optimize the use of waste streams from industrial companies to support the increasing global demand for food, feed and better use of natural resources.

We are a Nordic company specialised in exponential technology and responsible disruption. For us, disruption is a strategy applied to create new solutions for new needs that shape new markets and transform value systems in society. We advocate technological intuition to impact directions of change. We design tools that enable creative and purposeful collaborations. We help organisations understand and utilise the potentials of exponential technologies and disruptive innovation.

We provide Impact Business Modeling System™. It is a startup methodology and coaching process for incubators, accelerators and investors to support their portfolio impact startups in making their sustainable impact measurable, operational, and profitable. We work with incubators, accelerators and VC funds globally, primarily in Europe, eg. Startup Wise Guys, Rockstart, Climentum Capital, Ideon Science Park, Climate Resilient Africa Fund and NEEW Ventures.

Leapcraft orchestrates healthy and efficient buildings. We work with international clients from the public and private sector to deliver actionable insights into the climate in and around their buildings to help them optimize for energy savings and better productivity. We are thought leaders in IoT-sensors and data infrastructure for environmental monitoring.

UNYA Copenhagen is a volunteer-driven youth organization dedicated to empowering young people to engage with global challenges through the lens of the United Nations’ values and the Sustainable Development Goals. We create an inclusive platform where students and young professionals can learn, collaborate, and take action on issues like climate change, social inequality, peacebuilding, and innovation. We are addressing a clear and growing problem i.e. the disconnect between youth and global institutions. Many young people in Denmark care deeply about sustainability and justice but find it difficult to access meaningful opportunities to participate in international dialogue or contribute to real-world impact. This gap leaves motivated individuals without a channel to apply their energy, creativity, and ideas, while institutions miss out on fresh perspectives and engagement from the very generation that will inherit the future. UNYA Copenhagen bridges this divide by turning global ideals into local action. We organize interactive events, workshops, and panel discussions that make complex global topics accessible and relevant. Our activities are co-created by volunteers from diverse academic and cultural backgrounds who bring their own insights to the table. Through collaboration with universities, NGOs, and public institutions, we connect youth directly with experts and decision-makers, fostering a sense of shared responsibility and agency. What makes UNYA Copenhagen unique is our grassroots approach. We are not just an organization — we are a community that thrives on collective energy and creativity. Every project is designed by young people for young people, ensuring authenticity, inclusivity, and long-term motivation. Our strength lies in our diversity and the genuine commitment of our volunteers, who bring the UN’s global mission to life in a way that feels personal and actionable. The motivation behind UNYA Copenhagen is simple: we believe that youth engagement should not be limited to classrooms or conferences but should become a lived experience. We started this initiative because we wanted to make international dialogue tangible, local, and inspiring. Our team members share a passion for learning, community-building, and positive change — values that drive us to dedicate our time to building something meaningful together. Today, UNYA Copenhagen continues to grow as a platform where ideas turn into impact. We are seeking motivated individuals who want to gain experience in leadership, communication, and project management while contributing to a global cause. By joining The Hub’s Community Program, we hope to reach more passionate volunteers who want to be part of a dynamic network that connects Copenhagen’s youth with the world.

Copenhagen Energy Partners is a forward-thinking startup developing sustainable emission reduction solutions. Our mission is to drive positive change in the energy landscape by developing innovative approaches to reduce emissions and enhance sustainability for businesses. With a dynamic and collaborative spirit, we are dedicated to exploring strategies that not only address environmental challenges but also contribute to the economic growth of our partners. Our team is comprised of experienced professionals who are passionate about transforming the how companies work with sustainability and making a meaningful impact on the planet. At Copenhagen Energy Partners, we believe in fostering a culture of innovation and continuous learning. We provide a platform for individuals who are driven by curiosity and a commitment to sustainability. By combining cutting-edge research, creative problem-solving, and strategic partnerships, we strive to lead the way towards a more sustainable future for businesses and communities alike. If you're motivated to be part of a company that's shaping the future of sustainable energy and eager to work alongside experts in the field, we invite you to join our team. Together, we'll drive positive change and create innovative solutions that will leave a lasting mark!

Enabling high impact learning for the maritime and renewables front line. Aprendio will be the first platform for the maritime and renewable energy sectors focusing solely on connecting front line learners with creators of high impact and immersive high quality learning experiences. Seafarers and offshore staff are faced with high risk conditions in their jobs - typically at sea or on offshore installations. They need the best tools to keep their competences updated. Aprendio's mission is to utilize the most advanced digital learning technologies enabling enable first class training centers in delivering training and learning experiences anytime, anywhere on the globe.