Clean is the innovation space for those who develop and need to solve water and environmental challenges.

Find events How we work

Clean is The Danish Water and Environmental Cluster and our vision is for Danish companies to be world leaders in the water and environmental field. We are the innovation space for both those who develop water and environmental solutions and those who need to solve water and environmental challenges.

How we work


The water and environmental technology sector

71.000 +

full-time jobs in the sector, of which 49,171 jobs in water and environmental technology companies

165,2 B

DKK 119.1 billion in turnover in the cluster, of which DKK 119.1 billion in water and environmental technology companies

57,4 B

DKK in exports, of which DKK 52.8 billion in water and environmental technology companies

3.7 %

of the whole Danish export comes from the water and enviornmental sector

9.700 +

scientific articles published regarding water and environmental technology from 2018 to 2023

839

water and environmental technology companies in Denmark

The Danish Water & Environmental Cluster


Clean membership

Members of Clean
Innovation

You can expect concrete activities tailored to promote innovation in your company.

New markets

You can explore new markets and expand your company’s international presence.

Network

You’ll have the opportunity to meet your next customer, supplier, investor, or business partner.

Knowledge

As a member, you get access to unique research and the opportunity to shape the future of water and environmental technology knowledge.

Visibility

We showcase our members nationally and internationally and share your company’s success stories.

Projects

You’ll have access to a wide portfolio of projects in areas such as circular economy, water, waste and resources.


Latest news

All news
News

2. Mar 2026

From Reliable Pump Operations to Restoring Marine Life

News

26. Feb 2026

Clean Insights report : When rain becomes a system challenge

ReCircWater press release
News

25. Feb 2026

New Interreg project to pioneer stormwater solutions across borders

Dansk CCUS delegation i Sydkorea
Case

19. Feb 2026

Danish experience on a Korean scale

News

3. Feb 2026

New recruitment methods strengthen Danish companies’ access to international specialists

5 EU funding programs
News

16. Jan 2026

5 key EU funding programmes: Has your project found the right fit?

News

2. Jan 2026

From idea to testing: Vibration sensor helps RUNI predict wear on expensive machine parts

Erhvervsfyrtårn for vandteknologi
News

18. Dec 2025

A new grant strengthens Danish water solutions and helps companies move from idea to market.

News

16. Dec 2025

How can the environmental health of the Baltic Sea be improved?

The carbon Removal and CCUS delegation walking in a green field with biochar
News

26. Nov 2025

Network on Carbon Removal and CCUS Strengthens Ties Through Delegation Trip in Denmark

News

25. Nov 2025

From methane to microplastics: 14 SMEs receive support to tackle concrete environmental challenges

Case

20. Nov 2025

ReefCircular gains international dream partner: New collaboration with WSP is a direct result of Clean-funded pilot project

News

19. Nov 2025

No company can become circular on its own: more SMEs will develop solutions together through new value chain collaborations

News

17. Nov 2025

Clean at COP30: From Kalundborg to Belém

Kasper står ude i lufthavnen med 3 kasser saragasso tang
News

31. Oct 2025

Seaweed, Science and Solutions


Events

All events
  • WebinarWorkshop
    Wetland China

    2026

    30. APR

    NBS in freshwater managment DK-CN collaboration

    Danish and Chinese partners meet online to develop concrete action plans for nature-based solutions in two freshwater systems in China.

  • Conference

    2026

    4–7. MAY

    Visit us at IFAT Munich 2026

    Clean is part of Denmark’s joint presence at the world’s leading trade fair for water and environmental technologies.

  • Process
    Growth Trees concept Coffee bean seedlings nature background

    2026

    6–31. MAY

    Get a life cycle assessment (LCA) from DTU—and a 20% discount as a Clean member

    Is your company looking to better understand and document…

  • Webinar
    AI webinar med Clean, Toolpack og Microsoft

    2026

    8. MAY

    Work Smarter with AI and Copilot

    Free webinar on AI and Copilot on May 8, 2026. Learn how to streamline your work, enhance communication, and create professional PowerPoint…

  • Conference

    2026

    21. MAY

    Flow of Plastic – Final Conference

    Join the International Final Conference – Flow of Plastic on May 21, 2026 in Malmö and explore circular plastic solutions, EU perspectives, and…

  • Conference
    To busisness men networking

    2026

    3–4. JUN

    TechTour Water Tech 2026

    International matchmaking event connecting startups with investors and experts in advanced water technology.

  • Conference
    a room with a dias show and lots of people

    2026

    24. JUN

    INNO-MISSION BIOCHAR SEMINAR 2026

    Join the INNO-MISSION BIOCHAR SEMINAR 2026, marking the finalisation of three projects – SIMPLY, BioStore, and Mitichar – focused on mitigating…

  • DelegationWebinar

    2026

    14–18. SEP

    CCUS delegation to Canada

    In Alberta, Canada, carbon capture, utilization and storage (CCUS) is already a core part of both climate action and industrial development. Here,…

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