The company's purpose is to plan and execute work in the field of building technology ventilation (ventilation installations, insulation and maintenance work) as well as import and export of building materials. It carries out these works itself or can have them carried out by subcontractors. The company can establish branches and subsidiaries in Switzerland and abroad and participate in other companies in Switzerland and abroad, as well as conduct all business that is directly or indirectly related to its purpose. The company can acquire, encumber, sell and manage real estate in Switzerland and abroad. It can also provide financing for its own account or for the account of third parties, as well as provide guarantees and sureties for subsidiaries and third parties.