ReFlow is on a mission to support the decarbonization of the maritime industry. We are building a brand-new platform from scratch, designed to empower stakeholders with the tools and insights needed to drive sustainable change. We have a fun and social atmosphere, with an amazing location in the center of Copenhagen—right next door to the King and Queen! We’re a small, transparent team that shares insights into everything—from customers to numbers, the good and the bad. While we love working together in the office and prefer to have most of the team on-site, we're also quite flexible when it comes to remote work when needed. And did we mention the legendary post-lunch beer at the bar below? It's something you don’t want to miss! As a team, we win together, supporting each other every step of the way.

We are devoted to accelerating the development and adoption of technologies that can help fight climate change by actively removing CO2 from the atmosphere. The challenge We are emitting 50 Gigatons of CO2 every year, and that needs to be reduced by at least 80%. However, that still leaves 10 Gigatons of CO2, and we need to get all the way to zero. Trees are great, but we need many more solutions as well if we are to get to zero. Currently, most of these are way too expensive (and limited in capacity) for companies to use. We've developed a platform that combines methods and makes it available to every company that wants to compensate their emissions. We work with cutting edge technologies, including Direct Air Capture, Bio char, Bio oil etc.

At KiteX, we're revolutionising energy with innovative wind turbines inspired by kites. Our mission? To make wind turbines that use significantly less material, offering a cost-effective and sustainable alternative to traditional turbines. Our journey began by envisioning wind turbines that combine the efficiency of kites and autonomy of drones. On this path we found an hybrid design with guy wire supported tower and blades could achieve almost the same material savings, but without any of the disadvantages. Our unique approach centres on patience, refining technology step by step, and focusing on sustainable solutions. We're scaling up production of the groundbreaking Wind Catcher, a portable off-grid turbine, while designing a larger, grid-connected successor. As we grow, we're seeking exceptional team members in marketing, customer support, technical, and electrical engineering. KiteX isn't just a workplace; it's an opportunity to drive clean energy and make history. Join us in shaping a sustainable future. Contact us through the hub or at info@kitex.tech to be part of something extraordinary.

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.

Rock Flour Company is a dynamic, mission-driven startup founded by Professor Minik Rosing, the world-renowned geologist and pioneer of utilizing Greenlandic Rock Flour (GRF) for carbon-negative agronomic applications. Our core mission is ambitious: to bring GRF to market, enabling sustainable agriculture, facilitating carbon removals at scale, and delivering tangible economic benefits to local communities in both Greenland and specific farming regions globally. Today, we’re a dynamic core team of five with a validated potential by top investors across the globe. In September this year, we raised our second financing round featuring major commitments from Danish & Greenlandic institutional investors like Novo Holdings, EIFO (Danish state venture fund), SISA, and Nalik Ventures.

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.

1KOMMA5° Denmark (formerly Viasol, one of the earliest and largest solar providers in Denmark) is a climate tech company revolutionizing how homeowners transition to green energy. We offer fully integrated solutions for solar panels, heat pumps, and energy storage, all connected via our proprietary energy management system, Heartbeat. We are solving the complexity and inefficiency in the green energy transition. Homeowners today face fragmented offerings, lack of transparency, and poor service when trying to make their homes climate neutral. 1KOMMA5° solves this by offering a seamless, one-stop-shop experience with smart tech, premium installation, and ongoing optimization—all under one roof. With deep market experience as Viasol and now part of the 1KOMMA5° group, our mission is to make every home in Denmark energy independent, affordable, and climate-friendly—contributing to a healthier planet and future-proof energy economy.

You should join Twig Energy to be a part of accelerating deployment of renewable infrastructure. We are an AI and technology company at heart and are building the software and finance solutions enabling renewable infrastructure to be built at scale. Our ambition goes beyond software and we want to participate directly in building the infrastructure for a net zero future. As a workplace we value ambition to make a difference, autonomy and having fun.

Casi Technology is a Danish family-owned company based in Taastrup which specialises in metering and allocation of energy costs, with a perpetual aim for energy optimisation and reduction. Vi bruger vores energi, for at spare på din. Casi Technology blev stiftet i 2010. Vi har således mange års erfaring med at montere vand- og varmemålere og lave korrekte, overskuelige fordelingsregnskaber. Vi samarbejder med Qundis som er blandt verdens førende udbydere af professionelt målerteknologi.

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.

CPH Village is a Copenhagen based real estate start-up on a mission to create the best place to live for people and the planet through simple, communal living Our long-range vision is to export a new way of living to cities worldwide, and our goal for the next three years is to build and operate homes for 2.500 students. Our offices are located in our Villages on Refshaleøen and Vesterbro, and we work in the same kind of space as our residents live in. We are a young and action-oriented team in an exciting expansion phase as we are planning to quadruple our operations during the next year.

Over 250 million cars in Europe are standing still up to 23 hours a day. We believe that inefficiency leads to waste! That’s why we want to change mobility from car ownership to car sharing.SnappCar is a rapidly growing scale-up and one of the leading car sharing communities in Europe with offices in Copenhagen, Stockholm, Utrecht and Berlin.Our mission: 5 million less cars in Europe in 2022 to reduce pollution and create more space. A bold but achievable goal! So snapp more, waste less! We are a car sharing scale-up with a durable mission making an actual impact on the world, city by city! At Snappcar you will be joining an international team with a bunch of creative and driven colleagues from over 10 different nationalities. Our team members take great pride in what they do and strive to become the best in their area of expertise such as Development, (Online) Marketing and Community Support.

Disruptive Biotrading is a newly formed biotrading company focused on the trading of sustainable byproducts for the Scandinavian biogas industry. We are already moving large volumes monthæy and are experiencing rapid growth. We are involved in innovative research projects, and setting new standards within the physical commodity trading world.

Copenhagen Fintech is an association built on the vision to be one of the leading Fintech Hubs in the global financial services industry by supporting and catalyzing the next era of technology-led corporate and startup innovators. We combine the visionary ideas of fintech entrepreneurs, the experience of the established financial sector, the desire for societal benefits of the public sector and the research from the universities with the overarching purpose of building a thriving fintech ecosystem for the benefit of all stakeholders.

Buildcode is an entrepreneurial eng. company specialized in developing systems for optimizing quality assurance in the construction industry. Our solution SiteMotionis based on day-to-day registrations done with drone and scanning technologies for recording and processing the data related to building informatics that enable to: - minimize errors and deficiencies on the construction site, - improve communication during the construction process,- enhance the overall quality of the building. We have a lot of fun! We work hard to learn and achieve and we face every problem with a solution. You will have the opportunity to get free coffee every day, and Buildcode will provide fresh fruit once a week. We go to lunch around 12:00 pm, you can bring your own food our eat for free at the canteen. We’re placed in two different groups: Our Technical Department and our Marketing/Sales and HR Department. But that’s only where we sit, we work crosswise all-day long.