Operation of a sound and TV studio and a music and book publishing house, and development and sale of products in the fields of wind energy, horticulture, lighting, connection technology and medical accessories, as well as administration and brokerage of real estate, appraisals and expert opinions and other services in the real estate sector. May establish branches in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire or merge with similar or related companies, acquire, manage and sell properties, and enter into all transactions and conclude contracts that are suitable to promote the purpose of the company or are directly or indirectly related to it.