Rethink Cities Summit 2025

Dates: 8–9 September 2025

Location: Sønderborg, Denmark (Alsik Hotel & Spa / Sønderborg centre) 

Join a global convergence of city leaders, urban planners, entrepreneurs, and policymakers at Sønderborg, recognised globally for its Project Zero initiative and drive toward carbon neutrality by 2029.

What to expect:

  • Inspiring keynote sessions and real-world case studies on urban sustainability and climate action 
  • Networking opportunities bridging startups, governments, utilities and public bodies for public‑private partnerships 
  • Innovation showcases spotlighting scalable net‑zero solutions across mobility, energy efficiency, buildings, and waste management 
  • Peer collaboration and actionable frameworks to help cities implement climate‑resilient strategies and decarbonise effectively 

The Summit turns inspiration into action—where solutions meet implementation to build more sustainable, climate-resilient cities worldwide.

Learn more about the event here!