Operation of an engineering office for building services, in particular consulting, planning and execution in the sub-areas of ventilation, heating, sanitation, climate control and sprinkler systems. The company may, in addition, conduct all business that is suitable to promote or facilitate the development of the company and the achievement of its purpose. The company may establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, and conduct all business that is directly or indirectly related to its purpose. The company may acquire, encumber, sell and manage real estate in Switzerland and abroad. It may also provide financing for its own account or for the account of third parties, as well as provide security for the liabilities of affiliated companies.