Viable Cities is a Swedish innovation program for climate neutral and sustainable cities. The programme collaborates with 23 Swedish cities and four government agencies to accelerate the climate transition in the initiative Climate Neutral Cities 2030 – and with the unique tool Klimatkontrakt 2030 (Climate City Contract 2030). Running from 2017 to 2030, the programme gathers over 100 member organisations from industry, academia, public and civil society organisations. It is one of 17 Swedish strategic innovation programs jointly funded by three government agencies: Vinnova, the Swedish Energy Agency and Formas with a total investment of 100 million EUR. Viable Cities is coordinated by KTH, The Royal Institute of Technology.