Countries
Industry
Startup stage
Startup size
Funding
Impact startup SDGs
Showing: 408 filtered startups

Flow Loop

Flow Loop has developed a shower panel that is able to save up to 85% water and energy while providing a better flow than a standard shower.The savings are achieved by constantly micro-filtering, UV-purifying and recirculating shower water directly from the existing shower floor.Because the system is plug&play it is easy to retro-fit in existing bathrooms. The self-cleaning micro-filters ensure low maintenance. The high flow of recirculated water ensures higher comfort with a clean conscious. Dedicated team of 5, who enjoy both common lunch, "hygge", and afternoon cake as well as getting out of the office to go on field trips to validate assumptions and challenge ourselves and eachother - both professionally as well as socially with games nights etc.

FlexMeter ApS

FlexMeter is a Danish Cleantech dedicated to pioneering innovative solutions for energy savings. The company was co-founded by Andreas Rahelt and Lars Elmvang and has developed a unique concept that leverages data and technology to optimize energy consumption and reduce environmental impact. The company has completed more than 200 successful projects saving our clients up to 34% of their energy consumption. Our mission is to empower and nudge individuals and organizations to make smarter, more sustainable choices that benefit both the planet and their bottom line.

Impact Business Modeling System™

We provide Impact Business Modeling System™. It is a startup methodology and coaching process for incubators, accelerators and investors to support their portfolio impact startups in making their sustainable impact measurable, operational, and profitable. We work with incubators, accelerators and VC funds globally, primarily in Europe, eg. Startup Wise Guys, Rockstart, Climentum Capital, Ideon Science Park, Climate Resilient Africa Fund and NEEW Ventures.

CirBu

At CirBu we make sustainable buildings the obvious choice for everyone! The earth is running out of resources, and 50% is used by construction, but most is not reused. This is causing big damage to our planet. CirBu's software solution helps property developers make smart sustainable choices in the early report, resulting in lower costs of design, use and maintenance. A Win-Win for everyone.

Cirqle

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.

SuFu - Your Sustainable Future

Based in Copenhagen, SuFu is a tech-enhanced climate consultancy dedicated to driving impact through climate actions. Our mission is clear: to help companies measure, reduce, and report their carbon emissions with precision and transparency. SuFu operates in two arms. Our consulting services offer tailored solutions for any company, focusing on: - Carbon Accounting (our flagship service) - CSRD E1 Compliance and Reporting - Emission Reduction Plans - B Corp Application Assistance - Sustainable Supply Chain Consulting, including Life Cycle Assessment (LCA) In parallel, we have developed a freemium platform for carbon accounting, specifically designed for the Food & Beverage sector. Combining advanced tech and expert insights, this platform makes climate action more accessible and efficient.

MOOW

MOOW is an innovation house with a mission to decarbonize the built environment through fully sustainable and design-oriented building materials made from locally sourced willow. MOOW’s holistic understanding of sustainability includes natural carbon capture, biodiversity, circularity, and human health. Our long-term ambition is to redefine how buildings are constructed and experienced.

Treesy ApS

Treesy ApS er en dansk climate tech-startup, der gør det nemt, billigt og gennemskueligt for privatpersoner og virksomheder at tage konkret klimahandling gennem træplantning i Tanzania. Mange mennesker og virksomheder ønsker at gøre noget for klimaet, men oplever i dag, at løsningerne er uoverskuelige, dyre, abstrakte eller svære at stole på. Samtidig vokser både klima- og biodiversitetskrisen, og behovet for skalerbare, troværdige og handlingsorienterede løsninger er større end nogensinde. Treesy er skabt for at fjerne barriererne for klimahandling. Vi tilbyder en enkel abonnementsbaseret model, hvor kunder planter træer som en konkret måde at reducere og balancere deres klimaaftryk. Vores tilgang er baseret på konservative beregninger, radikal transparens og lokal forankring. Alle træer plantes i samarbejde med lokale partnere i Tanzania og bliver: • individuelt geo-tagget • monitoreret mindst fire gange årligt • passet og genplantet i op til tre år efter plantning Vi planter et diversificeret mix af træer med fokus på både klima, biodiversitet og lokal økonomi. Det betyder, at vores indsats ikke kun handler om CO₂, men også om at styrke økosystemer, skabe lokal indkomst og opbygge mere robuste lokalsamfund gennem agroforestry og frugttræer. Treesy adskiller sig ved at kombinere: • lav pris pr. træ • høj grad af transparens • direkte lokal tilstedeværelse • individuel geo-tagging af træer • en bevidst fravalg af dyre certificeringssystemer til fordel for direkte dokumentation Vores ambition er at gøre klimahandling tilgængelig for alle — og samtidig sikre, at indsatsen skaber reel, målbar og langsigtet impact. Treesy er stiftet af iværksættere med mange års erfaring fra udviklingsarbejde i Afrika og et stærkt lokalt netværk. Vi tror på, at ægte forandring skabes, når klima, biodiversitet og social udvikling tænkes sammen i én samlet løsning. Vores mission er enkel: At gøre det så nemt og gennemskueligt som muligt at give mere tilbage til planeten, end man tager.

United Nations Youth Association(UNYA) Denmark

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.

Stiesdal

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.

Nordpil Arkitekter

Nordpil Arkitekter is a Danish architect firm, with roots in Denmarks second largest town Aarhus. Aarhus is the business center of the entire kingdom of Denmark. Our knowledge and knowhow is what makes our clients choose us again and again for both private and corporate housing projects. We carry out new builds, re-builds, extensions, renovations and new major projects for companies that want to build a company domicile, or have another major construction project planned.

ContentAvenue

ContentAvenue is a SaaS company supplying original, ready to buy and professionally written articles for content-savvy companies and start-ups. Our platform helps companies find and post great content instantly by removing the time and costs for sourcing new trends, finding and hiring industry experts, and writing SEO-friendly content. Our platform showcases searchable unique and authority written content backed by science for companies who wish to maintain their authority and attract customers by providing enlightening and meaningful content.

REXCON system ApS

At REXCON system we are aware of the construction industry's huge impact on our planet's ecosystem and environment. We strive to make the industry a less CO2 and waste generating industry by implementing sustainable and circular solutions that can replace emission heavy market products. Sustainability - Circularity - Modularity Are all key values in our company's DNA and part of everything we do and think. By developing products that minimize the capacity required for transport, we reduce CO2 emissions. & By developing products designed for disassembly, we can keep them in a loop of reuse. - Thus reducing waste streams. & By developing products that are wood-based, we minimize our resource impact on our planet, as it is a renewable resource.

HPNow-ApS

About HPNow At HPNow (www.hpnow.eu) we are disrupting the multi-billion hydrogen peroxide industry and supply chain through breakthrough innovations and products enabling safe and green generation directly at the point of use. We are the first and only company worldwide to offer commercial on-site, on-demand hydrogen peroxide generation technology solutions across multiple markets and applications. By doing so, we contribute to advancing global climate and environment objectives while providing a strong positive impact on the bottom line of our customers.

Plastic Change

Plastic Change en dansk miljøorganisation med et ambitiøst internationalt sigte Vi arbejder hårdt med at knække den stigende kurve over plastikspild. Plastik er overalt – på land og til vands. Tre generationers forbrug af plastik har sat sine spor. Kun en lille del bliver genbrugt eller destrueret. Resten ligger i naturen i hundredvis af år. Vi arbejder for at reducere vores enorme plastikproduktion ved blandt andet at eliminere unødvendig engangsplastik fra vores produkter, ved at sætte bedre rammer for hvordan vi designer produkter til mere genbrug, og det plastik vi ikke kan genbruge, skal vi kunne genanvende. Vi arbejder både på politisk niveau, sammen med befolkningen, i samarbejde med innovationspartnere, på internationalt niveau, sammen med forskere og med at uddanne vores fremtidige generationer om problemet. Plastic Change består af et fast dedikeret team og en række uundværlige frivillige kræfter. Alle yder en stor, uvurderlig og professionel indsats for, at organisationen kan gennemføre sine ambitioner om at knække kurven for plastikproduktion og hermed plastikforurening.