Provision of services in the field of building technology, in particular in the areas of ventilation, heating, air conditioning and refrigeration systems, as well as the provision of sanitary and insulation work. The company may establish branches in Switzerland and abroad, participate in other companies in Switzerland and abroad, acquire similar or related companies or merge with them, and enter into all transactions and conclude contracts that are suitable for promoting the purpose of the company or are directly or indirectly related to it. It may acquire, manage, encumber and sell real estate, intellectual property rights and licenses of all kinds.