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.

Stiesdal is a young and fast-growing climate technology company. The main purpose of Stiesdal is to develop and commercialize technologies with high impact on climate change mitigation. This purpose is fundamentally rooted in a conviction that more needs to be done to avert catastrophic climate change. We take great pride in our work and in the fact that our solutions make a real difference on a global scale. Currently we have activities in Power-to-X hydrogen production, carbon capture and storage combined with green fuel production, floating offshore wind, and energy storage. We are equally ambitious when it comes to our company as a workplace. While our mission is critical and requires hard work, we want our work culture to be safe, sustainable, and rewarding. Simply put, we want our company to offer the best possible working environment.

At NLIR we make world-leading ultra sensitive and super fast Mid-Infrared optical sensing solutions. Our mission is to put forward innovative solutions and help other industries overcome their challenges and discover the future. We apply to several sectors: Research, Oil and gas, Polymer, Food and Agriculture, Pharmaceutical, Chemical, Medical Diagnostic and Environmental. Main applications are real-time during production In-Line inspection and Quality control of produced materials/items.

We are a startup on a mission to quantify environmental impacts, make them easy to understand and act upon! Companies and organizations needs to be able to calculate and document carbon footprint on the goods they sell. Unfortunately this is currently a very complicated and time-consuming task! We automate the process of calculating and documenting product's carbon footprint through intuitive software, providing high-quality data and a seamless user experience. Quantified Impacts is founded in late 2022. We have secured initial capital and have set the path to reach our mission. We have offices in Valby Copenhagen and in Bjerringbro Jutland.

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.

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.

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.

We're on a mission to revolutionize the way energy is handled in buildings. Energy Machines™ is a leader in the design, implementation, and operation of integrated energy systems for buildings. Buildings are a growing climate problem, accounting for over 28% of global CO2 emissions. We are working to transform them into climate solutions. By combining proven best-of-breed hardware with purpose-built software and simulation platforms, Energy Machines enables buildings to operate as “energy machines” or fully integrated systems that generate, store, and reuse their own energy. In order to revolutionize the way buildings are managed. We are developing a next generation computing platform. This platform will leverage cloud, IoT technologies and modern electronics to upgrade existing industrial systems. We envision a future in which buildings accelerate the world’s transition to sustainable energy. By turning every building into a high-performance energy machine, together we can achieve it.   *image source BLOX (Rasmus Hjortshøj)

Airlabs is an organisation with foundations in atmospheric chemistry and airflow engineering that has been established out of a desire to tackle the huge social problem of air quality in cities across the world. Our work is the result of active collaboration between our team and some of the world’s leading applied environmental research and engineering institutes. Our team brings together experts from widely varying disciplines: from atmospheric chemistry to pollution monitoring, from fluid dynamics to environmental health and from economics to engineering and design.

MoveByBike is an urban logistics company. We deliver products by electric cargo bikes, focused on 'last mile logistics.' We specialise in the food and subscription sectors, however with our large bikes we can move many products within any industry. Our goal is to remove as many trucks and vans from the city as possible. We are growing fast, so committed individuals are always welcome to apply for driver and internship positions. Look out for our bikes around the city!

Nordic BioVentures is a venture creation studio in Copenhagen focusing on planetary health. We work at the intersection of innovation and biology. We consult 100+ life science startups and projects per year through our tailored innovation programs and work for leading universities, venture capital and global deeptech NGOs and foundations.

Zaptec is a world leader in cloud-connected charging systems for multiple​ electric vehicles! Zaptec is a world leader in intelligent charging systems for electric vehicles. The global shift to electric vehicles will bring forward significant challenges in charging infrastructure. By combining its unique power electronics technology with cloud-connected and scalable charging solutions, Zaptec is able to put forward working solutions based on real experience from the country with the highest EV per capita in the world. Zaptec is headquartered in Stavanger, Norway, and all products are designed, developed and manufactured in Norway - and Zaptec Denmark ApS is a subsidiary based in the heart of Copenhagen (Bloxhub). We are looking for the best in class people to work with - and 👋🏼 we're are called Zapiens. We lead the EV charging market, and we will change the world for the better by creating a more sustainable electric future. Are you in? 👫👭👬🌎 Being Zapiens means we are modern humans who show feelings and actions towards each other. We act promptly, and we wholeheartedly and persistently work to get the job done💪🏼. We're innovative, and we most certainly recognise opportunities in all types of circumstances. Join the adventure! Join our adventure and have a look on our website for more info on working in Zaptec.

At North ESG, we’re building the AI-powered ESG accounting software for SMEs. 99% of all companies in Europe are small and medium-sized enterprises. They drive our economy - but when it comes to sustainability, they are underserved. ESG reporting is complex, time-consuming, and an administrative hassle. We believe the future of ESG should be about growth - not admin. Our mission is to free up time and strengthen the ESG profile of SMEs as a commercial advantage, so they can stay competitive, win more business, and meet rising demands from customers, regulators, and investors. Our platform automates the entire ESG reporting process using AI - from data collection to emissions calculations and EU-aligned reporting. It integrates with ERP systems and leverages both public and private data sources to generate tailored, commercially viable ESG reports. We’ve already gained strong market traction across industries in Denmark. And with ESG requirements increasingly cascading down from large corporates and financial institutions, we’re solving a growing pain for millions of SMEs across Europe.

FaunaPhotonics delivers biodiversity monitoring for companies with a fully automated, scalable, and digital solution. Leveraging advanced AI and machine learning, our platform delivers comprehensive insights into biodiversity impact, facilitating compliance with reporting standards and regulations effortlessly. Our innovative in-field sensors operate continuously, providing real-time data on your company's impact across operations and value chains. This ensures a steady stream of actionable insights, including baseline assessments, benchmarking data, and progress tracking over time. With FaunaPhotonics, businesses can proactively manage their biodiversity footprint while driving sustainable practices throughout their operations.

In today's data-centric world, seamless and high-speed communication is essential. Phanofi is at the forefront of this revolution, dedicated to building faster, greener, and more scalable data centers for generations to come. As a hardware spin-off from the Technical University of Denmark, Phanofi leverages cutting-edge photonics technology to redefine the limits of data transmission. Our innovative solutions are designed to empower AI computing for the future generation. Join us on this exciting journey as we build a photonics powerhouse in Denmark and shape the future of data communication!