The StratKIT project is about making the procurement of public catering services more sustainable. Public authorities have a large purchasing power and have the ability to give clear signals to the market towards green growth and circular economy. However, public procurement is a complex task and good practices in the Baltic Sea region are mostly isolated. StratKIT brings together public authorities, catering service providers and researchers in a network to set up a toolkit and an online open knowledge platform for sustainable public catering.