Centrally located in Copenhagen, Flowering is developing bouquets with a reduced CO2 output to help environmentally conscious customers reduce waste and promote sustainability with beautifully crafted, eco-friendly floral arrangements. Flowering addresses the significant issue of flower waste in the floral industry. This problem affects both the environment and flower producers, contributing to unnecessary carbon footprints. The widespread waste impacts growers, retailers, and consumers who seek sustainable alternatives. Our team at Flowering sources surplus flowers that would otherwise be discarded and repurposes them into beautiful, high-quality bouquets in combination with local and certified flowers. By implementing efficient logistics and innovative design processes, we ensure these flowers reach customers fresh and vibrant, reducing waste and promoting sustainability without any intermediaries. The inspiration for Flowering came from witnessing the vast amounts of perfectly good flowers being discarded daily. Motivated by a passion for sustainability and a desire to make a positive environmental impact, we left our jobs and studies to focus on creating a business that not only delivers beauty but also champions environmental responsibility.

EnergiTek ApS (ET) is a fast-growing start-up company based in Aarhus N, Denmark. Our mission is to tackle climate change problems by providing the grill and roaster market with convenient and affordable renewable energy equipment. In 2021, the Company has successfully developed a portable, convenient, and eco-friendly grill for outdoor socializing activities, named Adventure Boil-Grill. The Adventure Boil-Grill was a success from the first time it was launched on Kickstarter. At EnergiTek ApS, we believe in the future that everyone can use renewable energy equipment in their daily lives.

At Cellugy, we’re passionate about creating innovative solutions for one of the most pressing challenges of the 21st century: plastic pollution. Our product, EcoFLEXY, is a 100% natural bio-cellulose material produced by the fermentation of surplus sugar with specific microorganisms. The objective is to replace fosil-based plastics and products in a wide range of applications, from packaging to chemicals.

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

At NordicCharge, we're a fast-growing startup building the next-generation operations platform for the E-Mobility industry. We help Charge Point Operators and energy players automate and run every part of their EV charging business — from onboarding and asset management to billing, support, and partner operations. Our mission is to accelerate the transition to a net-zero future by removing operational friction. With our platform, CPOs can scale efficiently, automate manual processes, and deliver seamless experiences across large charging networks — without needing to build complex infrastructure themselves. Joining NordicCharge means becoming part of an early-stage team where your ideas directly shape the product, the culture, and the future of electric mobility. We move fast, solve real-world problems, and build tools that power the EV ecosystem of tomorrow.

Steamgreen er en Dansk Greentech virksomhed i Ballerup, fokuseret på at levere grønne løsninger til bilvask-industrien. Vi passer på miljøet og bruger kun 3l. vand Vores dampmetode sparer på vandforbruget. En liter vand forvandles til 1.700 liter tørdamp. En dampvask af din bil udgøres reelt set kun af tre liter vand – i modsætning til en traditionel bilvask hvor der anvendes overr 100 liter vand. Når der anvendes tørdamp, rengøres bilen vigtigst af alt helt uden brug af vaskekemikalier. Hensynet til miljøet er nemlig Steamgreen’ absolutte metier, og det er vi rigtig stolt over. + Kun 3-5 l. vand pr. bilvask modsat traditionel bilvask, hvor der bruges over 100 l. vand. Den ultimative bakteriebekæmper Vi dræber ca. 95% af bilens bakterier Steamgreen’ metode til dampvask dræber mere end 95 procent af bakterierne i din bil. Du bliver med sikkerhed beriget med følelsen af en ny bil, som også er ren og bakteriefri for dine børns sundhed og dit helbreds skyld. Metoden er også effektiv, fordi den 170 grader varme damp trænger ned i alle afkroge af bilen, hvor den fjerner snavs og dræber bakterierne i rattet, vinduer, instrumentbræt, døre, falser, måtter og paneler. + 95% af bakterierne i bilen dræbes ved dampvask

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.

Climate change is one of the biggest challenges humanity is facing. Solar power is expected to play a big role in reducing the use of fossil fuels. We make solar power plants more efficient and cost competitive, by increasing the energy production. At Startak we design and manufacture control systems for solar trackers used in large solar photovoltaic plants, to increase the energy production by 10-20% (depending on latitude). We provide our customers with a simple to use, modern and reliable hardware and software solution that is designed to give you peace of mind and control for the lifetime of your solar plant.

We support chemicals, energy, and pharma companies by solving one of the biggest challenges in chemistry: Obtaining reliable physical properties fast Advances in chemistry change the world: From the drugs that save our lives, to the crops and energy solutions that will save our tomorrow. The world spends $350 billion annually on chemical R&D and new process plants to create a brighter future. But progress is limited by slow and expensive trial-and-error experimentation and legacy enterprise software, incapable of incorporating state-of-the-art research and compute power. We want to change that. Using technologies such as quantum chemistry and probabilistic machine learning, we have developed a set of breakthrough digital tools that help energy, chemicals and pharma companies develop greener products and more sustainable processes.

RAND Boats is a boat producer, but also a technology and design company, focusing on clean energy development.Easily noted in shape of our boats, is the constant goal of pushing the boundaries of design and technology. Improving the boats for sustainable electric engines is one of our specialties and the hull’s shape is a clear example of this. This results is better performance, range and higher speeds. The boat simply consumes less electricity or gas, because of the reduced hydrodynamic drag.

Aperitas is a CSR 2.0 platform for managing complete CSR intelligence concerning the company and the multi-tier supply chain. Taking reporting from data bureaucracy to applied intelligence, Aperitas acts as a central hub for internal CSR data, offers data-driven compliance, risk, and performance management, and makes effortless and concise disclosure possible.

Hvorfor står vi op om morgen?! Hos barry drømmer at om hjælpe alle europæere med at blive bevidste og aktive strømforbruger - og dermed støtte den Grønne Omstilling! ⚡️🌍 Vi ønsker at blive elbilisternes foretrukne el-leverandør, og hjælpe så mange som muligt med at skifte til en elbil barry er en el-leverandør gentænkt fra bunden. 100% digitalt i en app - simpel struktur, nyeste teknologi, transparente produkt og pris, med en stædig tro på, at alle fortjener den korteste vej fra WTF til FTW! Vi er i gang med at revolutionere det danske energimarked, der er domineret af gennemsnitspriser, faste pakker, gebyrer og bindingsperioder. I modsætning til traditionelle el-leverandører har vi sløjfet alt det med småt, og erstattet det med strøm til indkøbspris og en app der gør det nemt at få et smartere, billigere og mere klimavenligt strømforbrug.

We`ve been organising Startup Weekends in Copenhagen for 4 years, educating and inspiring hundreds of people to become entrepreneurs. We were lucky to see it from the first row how #CPHSW helped people get into the entrepreneur mindset and to try new challenges. We always believed that one of strongest forces were the network of people you created during those crazy weekends. This is why we created Startup Weekend Mega: The biggest Startup Weekend ever organised in Europe.  We´re an awesome group of volunteers coming from a wide variety of backgrounds. All of us have their own stories about how we ended up joining the #CPHSW family.  We are proud that we`re 100% voluntarily run organisation and that we created a culture where everybody feels safe to experiment and make their own decisions. And we`re always there to support each other outside Startup Weekends.  We think being part of the organiser family is an excellent opportunity to try out craziest ideas in your field. A playground where we can have a lot of fun and learn a ton. After years of experimentation now we`re organising our biggest event, Startup Weekend Mega, and we would like to involve new people on this journey. If this makes you excited then please feel free to reach out copenhagen@startupweekend.org  or directly at the job posts. Fun guaranteed!;)

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)

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.