Mission statement

We are

in Switzerland and Central Europe the leading firm for engineering consultancy in the areas of ventilation, aerodynamics, climate, safety and equipment of underground transport systems and similar infrastructure - from design and construction to refurbishment;

internationally one of the leading firms for the conceptional design of the ventilation, aerodynamics, climate, safety and equipment of underground transport systems.



Profound expertise and professional project management provide the basis for attaining our company's targets. Through our ability for innovation and our competitiveness, we constantly strive to improve our market position.


Our thinking and acting are client-oriented. We tailor our services and our internal structures to the demands of the international market in a quick and flexible manner. The quality of our services has to meet the specific requirements expected by our clients.


For the development and implementation of our long-term business strategy we create appropriate business-units. Their structure depends on the needs of the market and the requirement of profitable business development. We aim at a flat organisational structure. Within our group of firms, we employ the experience of our partner firms in civil and electrical engineering.



A leading position in the market and a growing share in the international market require committed, independently acting staff. The working climate is marked by the will for co-operation and is consciously fostered. Mutual consideration and respect for the personalities of all staff are demonstrated daily in our personal contacts.



We acknowledge the principles of the free-market economy. Our activities are determined by our responsibility for the social and ecological environment.