NitroVolt is decarbonizing nitrogen-based fertilizer production and making the agricultural sector more resilient with a novel production process. Commercial ammonia production supports 40-50% of the agricultural industry as a nitrogen-based fertilizer. But current ammonia production is not sustainable, releasing over 1% of global greenhouse gas emissions during production facilities and further emissions during transportation to the end user, farmers. NitroVolt offers a local ammonia production solution that gives farmers the ability to produce their own nitrogen-based fertilizer. The only inputs required by NitroVolt’s container-sized systems are air, water, and electricity, enabling production of sustainable ammonia directly at farms. NitroVolt’s patented electrochemical Nitrolyzer unit can make ammonia on-demand with intermittent renewable energy sources. With their technology, NitroVolt aims to decarbonize nitrogen-based fertilizer production one farm at a time, cut the logistic costs of distributing fertilizer, and make the agricultural sector more resilient to external factors.

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.

Bluewhale ApS sends thousands of secure emails around the world every day. We are passionate about making a difference during a time when the stringency for data security is constantly increasing. We have specialized in secure and encrypted email since 2007. We have in-depth understanding of the typical secure communication requirements of both small and large sized organisations, whether they are in the private or public domain. With this knowledge gained from working alongside our diverse set of customers, we have developed a versatile and robust piece of software from the ground up. We continuously develop our solutions to the highest standards. Together with our customers we develop our software to meet their changing requirements and individual needs. Security is our main focus and our systems are easily integrated into established IT architectures while managing secure communication in a structural and seamless way. Since the beginning our aim has been to design an easy to operate solution, that adheres to the highest encryption standards, while accomodating large file transfers, all via a secure point to point communication channel – ultimately demonstrating to your recipients that you take the security and privacy of their data seriously. We are proud to fulfill our goal every day.

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.

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.

Auxilium Infrastructure Partners develops, owns, and operates flexible energy assets that help stabilize the electricity grid while creating new revenue streams for industrial sites and asset owners. The electricity system is becoming increasingly volatile as more wind and solar power enter the grid. This creates a growing need for fast, reliable flexibility: assets that can consume, store, or release power when the grid needs support. Today, many industrial sites have unused grid capacity, heat demand, backup systems, or space for batteries, but lack the technical platform, market access, and operational expertise needed to turn that flexibility into revenue. Auxilium solves this by combining physical energy infrastructure with proprietary software. We deploy and operate assets such as battery energy storage systems, electric boilers, load banks, and other controllable loads. Our platform connects these assets to energy markets and ancillary service markets, allowing them to support grid stability, optimize power consumption, and generate income. We handle the full process from site assessment and technical design to installation, operation, market participation, monitoring, and optimization. This gives customers a simple way to monetize their grid connection or energy assets without needing to build their own trading, control, or compliance capabilities. Our mission is to accelerate the green transition by making distributed energy flexibility scalable, investable, and easy to deploy.

What is RE-ZIP RE-ZIP is a circular packaging concept offering circular packaging to more or less all players in the ecommerce industry. By circulating and hence reusing rather than using single-use packaging (even recycled) we save CO2 even the first time a packaging is reused. It works likes this RE-ZIP delivers the packaging to webshops who offer the sustainable packing solution to their customers at check-out for a minor fee (paid back via reward voucher upon returning the packaging). Upon receipt of the goods the customer folds the RE-ZIP packaging to a return format and return it at a Drop Point. The packaging is returned to the RE-ZIP warehouse for cleaning and re-circulation to the webshops. The RE-ZIP packaging can be circulated up to 10 times, but more importantly the packaging will begin saving CO2 Within the first or second use – depending on the type. RE-ZIP has developed a state-of-the-art backend system supporting the above process and are currently operating in Denmark, UK and Poland. Hence working at RE-ZIP will offer you in-person colleagues in Denmark and remote colleagues in before mentioned countries and more to come. Working at RE-ZIP Working from the Danish RE-ZIP HQ you will find a bunch of nice new co-workers who appreciate to work from the office most days, because the energy we create together is important for us. That does not mean that you have to be here all day every day. You will have flexible working hours to accommodate your daily life. The atmosphere in the office is laid back and rather than working solo on projects and tasks we gather and combine our skills. Send us your application to come join us in our mission to change e-commerce packaging for good.

Fischer Lighting is a sustainable front-runner who has developed a unique circular business model where waste is transformed into new beautiful lamps that make buildings more sustainable and people healthier. In 2023, Fischer Lighting saved more than 53 tons of discarded lamps from being thrown away, and with the concepts ReUse, ReDesign, and ReCreate, unique lighting solutions are created in a beautiful and industrial design that meets all the requirements of a new lighting fixture. In addition to environmental sustainability, social sustainability is also an important part of the concept. Therefore, all the old lamps are separated and assembled by people on the edge of the labor market in Denmark. At the same time, the lamps are equipped with the latest technology, which, among other things, enables circadian lighting, which can stimulate the production of hormones in our body and create better well-being for people in buildings.

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.

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.

APX10 is a leading SaaS company providing advanced solutions to utilities and municipalities. APX10 helps utilities become more data-driven, and our mission is to support infrastructure optimization and sustainability through our digital analytics platform. Our company has offices in Aarhus, just 1 min walk from the Central Station, Aalborg and Milwaukee, USA. We are currently 15 employees and expect to grow steadily over the following years as we enter more international markets in Europe and North America. APX10 is a portfolio company of Cimbria Capital, a private equity investment firm based in the United States and Denmark conducting growth and expansion capital investments in the Water Economy.

COACH Solutions optimizes vessels’ performance through monitoring and analysis. We keep operators updated throughout the voyage with unified reporting and energy deviation alerts. - We were developed by an experienced ship owner and operator. - We are a combination of naval architects and seafarers, based in Copenhagen and Mumbai. - We strive to be dynamic and flexible to adapt to our clients' needs.

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.

We're an ambitious early-stage startup revolutionizing Corporate Sustainability Reporting Directive (CSRD) compliance. Founded by serial entrepreneurs and domain experts, we're gaining rapid traction by offering a cutting-edge platform that simplifies and streamlines CSRD workflows. At Theo.ai, we're dedicated to making sustainability reporting easier to grasp and work with leveraging our expertise and innovative product. As part of our dynamic team, you'll contribute to a solution that shapes a more sustainable future for businesses worldwide. Discover more about our mission and how you can make an impact at theo.ai.