Combining knowledge about the energy sector with business model expertise, the project consortium intends to develop ideal-typical decarbonization strategies for Swiss gas suppliers, business models for a decar-bonized gas and heat market, and possible transformation pathways to-wards a decarbonized gas and heat market. These strategies, business models, and pathways shall be rooted in a comprehensive overview of the current and future Swiss gas and heat market and collaborative idea-tion processes. To these ends, the study synthesizes existing insights, enriches them by collecting primary data, and conducts ideation work-shops with key stakeholders. Its results provide decision-makers at federal and municipal levels, public administration, and Swiss gas suppliers with empirical data and strategic guidelines for the development and implementation of decarbonization strategies, the adoption of appropriate business models, and the pursuit of promising decarbonization pathways.