The study identifies factors that either enable or hinder Nordic collaboration and proposes a new model for fostering long-term, sustainable partnerships. Using data from a Nordic-wide survey and four in-depth case studies, the report zooms in on: (1) Denmark’s Coast to Coast Climate Challenge, a project fostering climate adaptation through municipal cooperation; (2) Finland’s Greenreality Network, where energy sector businesses catalyze regional economic growth; (3) Åland’s Grit:lab, an innovative tech education initiative; (4) Iceland’s Telemedicine Program, which improved healthcare access in remote areas.