The management of an interdisciplinary engineering studio for preliminary and feasibility studies, design, site management, project management, testing, expert opinions, project financing studies, due diligence, certifications and commissioning of assigned mandates. Engineering in all fields of plant engineering and energy; in particular in the water-sanitary, heating and air conditioning, refrigeration, ventilation, water treatment, swimming pools, solar systems, renewable energy production systems, building management and control systems, electrical systems, lighting systems, home-building automation systems, special systems (weak currents - camera systems, intrusion detection, access control, audio/video, fire detection, television, etc.), data-voice network systems, fire prevention systems, acoustics and building envelope studies (technical physics), elevator systems, lifts and similar systems. Studies for the requalification of existing buildings (energy audits). The company may buy, sell and rent real estate. The company may also carry out any activity directly or indirectly related to the company's purpose, acquire other companies and participate in any form in companies with similar purposes, both in Switzerland and abroad.