Plastic waste and single-use packaging is one of the great unsolved problems for our planet. In Denmark, we produce 844KG of household waste annually per person. Most of this packaging is used for food and beverage products and it is an increasingly large environmental challenge. At Cirqle we are driven by our mission to make single-use a thing of the past and make reuse packaging the norm. Reusing packaging reduces the impact, and greatly minimizes the natural resource use of packaging. With our pioneering reuse packaging service and technology platform, we make reuse a reality for companies in the food and beverage industry. We are already breaking new ground with our meal-kit service, but the sky's the limit when it comes to reuse packaging. With partners we cover the full supply chain from packaging production and software development to sanitation and logistics making sustainability the easy choice for our customers.

At Tector, we believe technology should make building protection effortless. We’re transforming construction with smart solutions, talented people, and a clear sense of purpose. Proactive alerts for healthier buildings Tector gives you timely notifications when moisture levels in flat roofs or timber structures indicate a potential problem. By alerting you before damage occurs, we help prevent costly repairs, reduce CO₂ impact, and keep buildings resilient for the long term. Empowering the construction community Our solutions support everyone in the construction value chain: Building owners looking to safeguard their properties. Contractors who want clear insights to act before issues escalate. Advisors ensuring they can recommend the best solutions for their clients. A growing team, a global reach From our Copenhagen and London offices, our tight-knit team supports projects in 15 countries and is building the foundation for future growth. With Tector, keeping buildings secure, dry, and resilient has never been easier.

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.

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.

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.

Copenhagen Energy Partners is a forward-thinking startup developing sustainable emission reduction solutions. Our mission is to drive positive change in the energy landscape by developing innovative approaches to reduce emissions and enhance sustainability for businesses. With a dynamic and collaborative spirit, we are dedicated to exploring strategies that not only address environmental challenges but also contribute to the economic growth of our partners. Our team is comprised of experienced professionals who are passionate about transforming the how companies work with sustainability and making a meaningful impact on the planet. At Copenhagen Energy Partners, we believe in fostering a culture of innovation and continuous learning. We provide a platform for individuals who are driven by curiosity and a commitment to sustainability. By combining cutting-edge research, creative problem-solving, and strategic partnerships, we strive to lead the way towards a more sustainable future for businesses and communities alike. If you're motivated to be part of a company that's shaping the future of sustainable energy and eager to work alongside experts in the field, we invite you to join our team. Together, we'll drive positive change and create innovative solutions that will leave a lasting mark!

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.

Siden 2017 har Hansen & Ersbøll Agenda arbejdet med virksomheders og organisationers engagement med FN’s Verdensmål og den bæredygtige omstilling. Vores team tilbyder førende bæredygtighedsekspertise inden for forandringsledelse, agenda setting, interessentindragelse, fortalervirksomhed, PR, virksomhedspositionering, ledelseskommunikation og bæredygtighedsrapportering. Vi arbejder på alle niveauer fra sparringsmøder på ledelsesniveau til længerevarende implementeringsindsatser. Vi er ca. 10 ansatte

Heated lifestyle products for bikes, to make green transport throughout the year the norm. Promoting winter cycling through engagement of committed, quality conscious cycling communities. We aim to bring a brand to life that makes people excited to cycle through winter because of the design and functionality it offers the cyclist. Our three product strategy takes the car seat heating concept and expands it into a visionary perspective of bicycles as a year-round transportation mode. Abrigo in Spanish means jacket - and the latin origin word, connotes shelter. We want to make cycles a a form of shelter so that we are able to bridge the transportation gap whereby summertime cycling far outweighs wintertime cycling. We are starting with heated seatwear, and are going to expand into handles and pedals, in due course.

Vecourse helps people become Vegan. Veganism is becoming increasingly popular, as people realise that animal products have consequences for the environment, animal welfare, and their own health. However, the majority of people who try to change their diet and lifestyle still fail to stick to the habit. Vecourse is a unique attempt to solve this problem, built by a team with best-in-class experience of building gamified learning, motivational content, and community products.

ejendom.com er en dansk IT-virksomhed og softwareleverandør i Danmark. Vi tilbyder et digitalt værktøj med fokus på ejendomsdrift, vedligeholdelse, bæredygtighed og opgavestyring ved renoveringer eller andre byggesager. Vi har været igang siden 2021 og har et kontor på Christianshavn. Vi leder løbende efter nye talenter, så tag et kig på vores ledige stillinger forneden.

SolarDrive Container Power (SDCP) is a greentech 🌳 on a mission to deliver carbon-neutral electricity to the world's most remote, off-the-grid, areas and organizations. We do that through our efficient plug & play solar power units that leverage a central part of the global infrastructure - the standardized shipping container. Our product, the Solar Container Power (CPS) units, fits perfectly and easily on top of standard ISO containers and provides electricity in remote areas or in situations where alternatives are expensive or not available. 🌍 Around the world, shipping containers are used as makeshift offices, storage, or place of stay. In this sense, our solution replaces or supplements generators, wind, or grid power. The units come with built-in battery capacity, inverter, MPPT, charger and control system. This means our users only need the sunshine and an extension cable to get power ⚡️ Our product 📦 is patented and has military and civilian applications. Our potential customers count international development and aid organizations, resource extraction, and construction companies. We operate from Copenhagen and Hundslund, south of Aarhus.

Klima Biler er sat i verden for dem, der går med tanker om at anskaffe sig en klimavenlig bil. Hos KlimaBiler.dk er der ingen benzin- og dieselbiler, medmindre der er tale om hybridbiler. Vi har fokus på klimavenlige biler og dermed fremtiden. Vi hører selv til i kategorien af dem, der elsker lyden af en V8’er! … men det er lyden af fortiden, det er lyden af afbrænding af fossile brændstoffer. Vi er også fuldt ud bevidste om, at det kan diskuteres, hvilke biltyper der forurener mest fra vugge til grav, og problematikker omkring rækkevidde, manglende ladestandere og ladetid. MEN jo flere der kører klimavenligt, jo hurtigere går udviklingen af de grønne teknologier, og jo hurtigere går det med at nedbringe de børnesygdommene med førnævnte problematikker. Derfor ønsker vi at kickstarte den udvikling og få så mange klimavenlige biler på vejene som muligt. Vi pudser ikke vores glorie! Vi glemmer også at slukke lyset og har masser af vaner, der er meget lidt klimavenlige, men stille og roligt bliver vi mere og mere bevidste om de valg der kan gøres anderledes for at belaste klimaet mindre. Det samme gælder KlimaBiler.dk. Der er masser af ting, der kan gøres bedre for den besøgende eller for dem, der sætter deres bil til salg på klimabiler.dk … der kan vi heldigvis undskylde os med, at vi er helt grønne. Men nu er vi i gang og som med el- og hybridbiler, er det et skridt i den rigtige retning. Og vi er altid åbne for forslag til forbedringer eller ideer til indhold på siden. Jo flere biler, der bliver sat til salg på klimabiler.dk, jo hurtigere og jo bedre kan vi udvikle websitet og markedsføringen og dermed få flere klimavenlige biler på vejene. Ambassadør for klimaet! Vi synes, at man ved at køre i en klimavenlig bil viser sin holdning til klimaspørgsmålet og er med til at få tvivlerne over på den grønne bølge. Man bliver ambassadør for klimaet og er med til at vise vejen til et bedre klima i alle henseender, for vi ser klimavenlige biler som fyrtårne for udviklingen af grønne teknologier generelt. Og bla. Tesla har vist, at klimavenlig teknologi og biler bestemt ikke behøver at være kedeligt.

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.

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!;)