The core activity of HTZ AG encompasses three main areas: 1. **Real Estate**: Sales, rental and management of real estate, including holiday apartments. 2. **Management**: Consulting and support for companies and construction projects through board of directors mandates, owner representation, owner consulting and start-up accompaniment. 3. **Investment**: Investments in real estate and companies, including the search for investors for groundbreaking business ideas, real estate sales and land sales.