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.
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
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
16. Jun 2026
Connecting Colombia and Europe to Accelerate Circular Solutions in Plastics and Packaging
11. Jun 2026
The World’s Leading Water Innovators in Aarhus
1. Jun 2026
Six technologies with global ambitions explored Shanghai
29. May 2026
Clusters Are the Infrastructure. Here’s What That Actually Means.
22. May 2026
From shop shelves to the Baltic Sea: Flow of Plastic points the way to less plastic waste
11. May 2026
Danish environmental technology companies showed their strength at IFAT 2026 in Munich
30. Apr 2026
18 member companies showcased circular solutions at the Clean stand during LOOP Forum 2026
2. Mar 2026
From Reliable Pump Operations to Restoring Marine Life
26. Feb 2026
Clean Insights report : When rain becomes a system challenge
25. Feb 2026
New Interreg project to pioneer stormwater solutions across borders
19. Feb 2026
Danish experience on a Korean scale
3. Feb 2026
New recruitment methods strengthen Danish companies’ access to international specialists
16. Jan 2026
5 key EU funding programmes: Has your project found the right fit?
2. Jan 2026
From idea to testing: Vibration sensor helps RUNI predict wear on expensive machine parts
18. Dec 2025
A new grant strengthens Danish water solutions and helps companies move from idea to market.
16. Dec 2025
How can the environmental health of the Baltic Sea be improved?
26. Nov 2025
Network on Carbon Removal and CCUS Strengthens Ties Through Delegation Trip in Denmark
25. Nov 2025
From methane to microplastics: 14 SMEs receive support to tackle concrete environmental challenges
Events
2024–2026
9. AUG–22. AUG
Advanced Water Cycle Management Course 2026
International summer school on water management and technology
2026
19. JUN
Should You Enter the Chinese Market, and How?
Intro Day: Entering the Chinese Market China is one of the world’s largest and most dynamic markets, but it can also be a complex market to…
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…
2026
24. JUN
The Future of WASH in Kenya: Exploring Market Needs, Partnerships, and Innovation Opportunities
Connecting International SMEs to the I4WASH Ecosystem This…
2026
26. JUN
Nordic Workshop on AI for Climate 2026
Conference with three tracks within AI focused on climate adaptation, with match-making, poster-sessions and more.
2026
26–27. AUG
Become an exhibitor at TechBBQ 2026
Become an exhibitor at TechBBQ and showcase your startup to investors, decision-makers, and tech professionals
2026
1. SEP
Water Export Day 2026
Export opportunities and networking for the water sector
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,…
2026
4–8. OCT
Become an exhibitor at IWA Glasgow
Join Clean at IWA Glasgow 2026 and meet potential customers, partners, and decision-makers from around the world.
2026
28–31. OCT
Innovation Camp Nairobi (I4WASH 2026)
Explore growth markets in the water sector, sanitation, and climate adaptation in Kenya. Is your company looking to explore new export and…
2026
3–4. NOV
BlueGreen Innovation Challenge 2026 (BIC26)
This is not your average hackathon. BIC26 brings together the entire value chain – from regional and municipal authorities, utilities and…