Claus advises companies, clubs, associations and marketers in the sports, entertainment and leisure industry. He advises on strategic and operational projects, particularly in the areas of
sustainability, business development and change management. Claus is a network partner of Colourful Excellence and owner of his own consulting company, Horstmann Strategie & Management
Claus is an active member of Cradle to Cradle NGO and spokesman of the C2C NGO Regional Group Cologne.