Carrying out noise measurements, preparing expert opinions and reports in the fields of noise measurement and noise reduction, as well as providing additional engineering services in the field of environmental protection technology. The company may establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire, encumber, sell and manage real estate in Switzerland and abroad, arrange financing for its own account or for third-party account, and provide guarantees and sureties for subsidiaries and third parties.