Biobased businesses have a growing pressure for circular bioeconomy business models to keep up with the green transition, meet the demands of their customers and to find new business opportunities. However, the transition is slowing down due to lack of human resources and knowledge capacity in the rural regions of the Baltic Sea. More transnational co-operation and innovation services are needed for scaling up regional circular (and digital) bioeconomy solutions. BioBoosters is responding to this by developing a demand-driven business hackathon model (BioBoost hackathon model) to lower down structural barriers for cross-sectoral and transnational innovation work and modernizing the bio-based industry. The model is tailored to the needs of well-established bio businesses for adopting circular business models and key enabling technologies acquired in the transition provided by cross-sectoral innovators (SMEs, start-ups etc.) attracted from the whole BSR. The regional bioeconomy hubs (BioBoost hubs) have a key role supporting the circular transition by preparing and testing the BioBoost hackathon model, conceptualise and make it accessible and attractive for businesses. Eventually model is ready to be adopted by any existing innovation hubs. BioBoosters continues previous project initiatives by promoting bioeconomy but focusing more systemized model development reflecting the regional challenges (S3) hindering the BSR circular transition.