Calculation, consulting and measurement in the field of building acoustics and building physics. The company can acquire, hold and exploit intellectual property rights and real estate. The company can establish and manage branches and subsidiaries in Switzerland and abroad for its own account or for the account of third parties, can participate in other companies, can hold majority or minority interests in other companies and can acquire, hold and sell properties. Furthermore, the company can conduct all business that is suitable to promote and facilitate the development of the company and the achievement of its purpose, directly or indirectly.