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.

KAKTI is on a mission to accelerate the transition toward affordable and intelligent energy systems. Our AI-powered energy management platform optimizes the operations of district heating plants, making energy production more efficient, responsive, and climate-friendly. We work with forward-thinking utilities and plant operators to orchestrate complex thermal systems in real-time, leveraging machine learning, optimization, and forecasting technologies. At our core, we're a collaborative, impact-driven, and technically ambitious team dedicated to transforming how heat and power are produced and consumed.

ESEBA, a deep tech startup from DTU, transforms low-quality textile waste into MDF boards without binders or formaldehyde. We offer a sustainable, non-toxic alternative to traditional wood-based panels. Textile waste is a massive and growing problem in Europe – less than 1% is recycled into new products, and most ends up incinerated. At the same time, formaldehyde regulations are tightening, and deforestation pressures are increasing demand for alternatives to virgin wood. ESEBA’s mission is to enable local, circular board production through a scalable, plug-and-produce production line for furniture manufacturers.

Many people are talking about the smart grid and how we can reach 100% sustainable energy, and avoid global warming getting out of hand, by intelligently balancing the consumption so it fits with the electricity production. At True Energy we're already doing it! True Energy offers a smart charging app to our end users so they can register their car or charger and have it start or stop charging based on the hour of day and the electricity price, so the user optimizes their charging to be cheapest. The service is free of charge for the end user because they participate in our flexibility pool where the power companies can buy offsetting of the consumption if the grid is overloaded or production is expensive. We use Google Workspace, GitLab as code repo, Jira for our agile project management, and Slack for chat. We have a policy of 100% line coverage for unit tests, and want to support continuous delivery. We focus on collaboration and an open, inclusive work environment. Our team is multinational, and the working language is English, so full proficiency is required.. We have team members in several time zones.

GreenWeb. is the first data-driven calculation engine for estimating the climate impact of websites. Using comprehensive data scopes involving website traffic, energy intensity of web data and real-time carbon intensity of the electricity grid, GreenWeb. offers members to climate neutralize their web solutions and actively assist in reducing the footprint of the site.

We are a very fast growing Charge Point Operator. We have secured investment, and are looking to add 10 new team members within the next 6 months. We sell electric vehicle solutions for private, business, and government, and are already one of the top 5 in the Danish Market. We are looking for motivated people who want to be part of a dynamic and fast moving company, where you will get to shape the future of the company and the greater charging market itself.

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.

GoBoat is an experience company, which offers unique social experiences on the water to both locals and tourists, through sustainable boat rental. It was founded in Copenhagen in February 2014 by Anders, Carl and Kasper – three young entrepreneurs. Today the company operates boat rentals all over the world.

We produce the SpaceInvader – a pallet rack that lets companies easily double stack shipping pallets and thereby carry more cargo with every transport. Capable of optimizing a company’s supply chain down to every single pallet, SpaceInvader will let companies make full use of the vast amounts of cargo space currently wasted every day. With our patented design, it is our mission to 'invade' that space as much as possible, cut transport costs, and effect a more sustainable transport industry.

SingularityU Nordic is a proud partner to Singularity University in Silicon Valley - a global learning and innovation community using exponential technologies to tackle humanity’s biggest challenges and build an abundant future for all. The hub is located in a +7,000m2 innovation hub in the heart of Copenhagen Science City. Beyond education and innovation programs, we also offer co-working space for some of the best Scandinavian startups and scale-ups as well as meeting and event facilities. We really believe in designing a job for you based on what you love and what puts you in a flow state. Since we are a small, but mighty team of dreamers and doers, you will be trusted with real responsibility and own several projects. This means that you will gain maximum experience hands on, have creative liberty to come up with cool ideas and execute on them, as well as make a visible impact.  SingularityU Nordic is a vibrant innovation hub bursting with entrepreneurs and intrapreneurs that are using technology to solve humanity's biggest challenges. Each day is a different adventure and you will find yourself inspired, enabled, and connected with some of the best and brightest minds in Denmark working on creating scalable positive impact! Naturally, you will be exposed to some of the best teachers, speakers, and experts related to startups, innovation, and technology.You will also receive a delicious brainfood lunch, close mentoring and coaching, and tickets to all kinds of cool events.

We incubate novel ideas into fast growing businesses by following a systematic approach to entrepreneurship and a set of proven principles for getting rid of risk early on. We help form self organizing teams that can grow the culture, shape the strategies, add resources, help scale the business and finally - one day - we exit the company.

RiskFinder helps the companies that keep heat, water and power running stay ready when something goes wrong. Our customers are utilities and critical infrastructure operators. Every year they face more cyber threats, extreme weather, supply chain failures and new rules. Most of them already have emergency plans and risk assessments. But the information sits in long documents, spreadsheets and people's heads. That is exactly where it is useless in a real crisis. We turn it into something teams can use under pressure: clear action cards, live risk tracking, exercise planning, supplier and asset overviews, and the proof that they are ready. This is not a tool for auditors. It is for the person on shift when a plant goes down at 3am, who has to make the call and keep the city warm. Those are the high-stakes moments we build for. When it counts, the work has to hold. We are early. RiskFinder is a small operation working with serious customers on hard problems. There is no narrow lane to stay in. You will see how the whole thing fits together, from talking to the people who run a plant to shipping the feature that helps them. If you want your work to land on something real, with people who genuinely need it, this is a good place to spend your time.

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.

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.

Nuvve powers the future of flexible energy by turning electric vehicles (EV), batteries, buildings, and distributed assets into dynamic grid resources. At the core is Nuvve’s advanced platform for vehicle-to-grid (V2G) and intelligent energy management, orchestrating real-time bidirectional charging, load optimization, and grid services. By harnessing an ecosystem of electrification partners, fleets, stationary storage, and smart EV chargers, Nuvve helps utilities and communities unlock flexibility at scale — enhancing reliability, accelerating electrification, and lowering costs. Nuvve enables a clean energy future where mobility, buildings, and infrastructure work together to support a more resilient, sustainable, and equitable grid. Headquartered in San Diego, California, Nuvve operates globally and online at nuvve.com