About us

HBI Haerter AG (Switzerland), HBI Haerter GmbH (Germany) and HBI Haerter Pty Ltd (Australia) are companies of consulting engineers. The focus of activities is on the design, development and accompanying the execution of tunnel ventilation projects.

Included are also pollution dispersion calculations, risk analysis, safety, mechanical equipment and aerodynamic and thermodynamic studies for rail and road tunnels as well as for underground facilities. The entire range of tunnel related tasks is provided by HBI.

Feasibility studies, measurements, detailed studies, project execution, project supervision up to refurbishment and optimization of operations are provided.

With more than 1000 successful reference projects HBI is in the area of tunnel ventilation an international leading company. Quality, innovation and reliability distinguish the services provided by HBI.

HBI is an independent engineering company. The owners of the company are also leading employees. HBI collaborates as a specialised designer with various associate partners in different organisation forms.

HBI originates from SHB Schindler Haerter AG founded in 1963. From the offices in Berne, Zurich (Switzerland), Heidenheim (Germany) and Sydney (Australia) more than 35 engineers and employees carry out the worldwide projects.