Students showcase sustainable innovation at the Euronext Blue Challenge 2026

The sixth edition of the Euronext Blue Challenge once again demonstrated the creativity and determination of young entrepreneurs developing solutions for some of today’s most critical environmental challenges. Bringing together students from across Europe and beyond, the 2026 global final highlighted how innovation, sustainability and entrepreneurship can work together to support the future of the Blue Economy. 

Organised by Euronext in partnership with JA Worldwide and JA Europe, the programme encourages students aged 16 to 18 to explore sustainable finance and create business ideas focused on climate action and ocean preservation. Since its launch, more than 3,000 students and over 400 Euronext employees have participated in the initiative through mentoring, workshops and educational sessions. 

A global final celebrating sustainable entrepreneurship 

This year’s global final brought together national winning teams from Belgium, Denmark, France, India, Ireland, Italy, Norway, Portugal, the Netherlands and the United Kingdom. The students presented innovative business concepts designed to address environmental issues ranging from plastic pollution and marine contamination to flooding and sustainable healthcare. 

Innovative ideas addressing environmental challenges 

The finalist teams presented a wide range of sustainable business ideas connected to the Blue Economy and climate change mitigation. 

  • SquishPea (United Kingdom) developed biodegradable stress balls filled with naturally dyed chickpeas as an alternative to plastic-filled products containing microplastics. 

  • HydroLoop (Ireland) proposed a water recycling and cooling system for AI data centres designed to reduce thermal pollution and protect marine ecosystems. 

  • EcoLithos (Portugal) created sustainable construction blocks using industrial waste materials to lower the environmental impact of cement production. 

  • Inflood Tech (France) developed an inflatable anti-flood barrier made from recycled PVC to help protect homes and communities from flood damage. 

  • Mag-Shell (Italy) created a floating filtration system using mussel shell waste to remove heavy metals from port waters. 

  • BeezyWrap (Belgium) introduced reusable beeswax food wraps designed to replace single-use plastic packaging and reduce plastic waste. 

  • BioHull (India) developed an eco-friendly silicone ship coating inspired by shark skin to replace toxic antifouling chemicals used in maritime transport. 

  • PlastiCatch (Netherlands) designed a recyclable laundry bag that captures microfibres released during washing cycles before they enter waterways and oceans. 

  • Algicare (Denmark) developed biodegradable seaweed-based bandages with infection detection capabilities using sustainable materials. 

  • Nehro (Norway) created a system designed to reduce harmful chemical discharge from salmon aquaculture operations. 

Recognising this year’s winners 

India’s BioHull was awarded first place and received the 2026 Blue Innovation Award for its innovative approach to reducing marine pollution from shipping. France’s Inflood Tech secured second place for its flood prevention solution, while Norway’s Nehro received third place for its work supporting cleaner aquaculture practices. 

The projects were evaluated by a jury of experts on sustainability, marine science and finance, including representatives from Euronext, European institutions and the Blue Economy sector. Entries were assessed on innovation, environmental impact, business viability, financial literacy and problem-solving capabilities. 

Supporting the next generation of changemakers 

As part of Euronext’s broader ESG strategy, the Blue Challenge reflects the Group’s commitment to supporting financial literacy, entrepreneurship and climate awareness among younger generations. Through collaboration with schools, mentors and sustainability experts, the programme continues to encourage students to transform ideas into practical solutions with real-world impact. 

By supporting initiatives such as the Blue Challenge, Euronext continues to promote innovation and education as key drivers of a more sustainable and inclusive future. 

Learn more about Euronext’s commitment to ESG and sustainable finance.