Provision of comprehensive services in the field of building technology, specifically planning and execution of plumbing, heating and ventilation systems, as well as purchase, sale, construction management, planning, brokerage, rental and appraisal of properties and trade in building materials of all kinds. May establish branches and subsidiaries in Switzerland and abroad, participate in other companies, conduct all business directly or indirectly related to its purpose, acquire, encumber, sell and manage real estate in Switzerland and abroad, arrange financing for its own account or for third parties, and provide guarantees and sureties for subsidiaries and third parties.