The main Office, that initially focused mostly its activities in structural design and engineering, under the direction of Professor Dr. Konrad Bergmeister, has progressively developed technical and theoretical knowledge in the following 9 specialist fields.

· Civil & construction management
· Structural engineering and modelling and calculation
· Infrastructures and environmental engineering
· Bridges & Building rehabilitation
· Underground structures
· Energy engineering & Builing Physics
· Electrical technology
· Research & Development
· Sáfety and Fire engineering