Companies that integrate sustainability into their strategy and business processes, contribute to the sustainable development of their business and society as a whole. In particular, public companies, in view of their activities as providers of public goods and services, play a special role for sustainable actions. The Stadtreinigung Hamburg, based on its self-concept, decided very early on to implement responsible and sustainable actions within the meaning of Citizen Value. Wholly integrated sustainability management is the foundation for a successful integration of sustainability into the company. The essential components include environmental management, quality management, risk management, the preservation of employee concerns, the socially and environmentally acceptable alignment of the supply chain, the fight against corruption, operational information systems and sustainability reporting. In the last twenty years, the Stadtreinigung Hamburg has gradually built its sustainability management and is continuously developing it. In periodically published sustainability reports, the company documents its achievements and draws up a comprehensive target program.