Gall Zeidler Consultants is an international engineering consultancy firm specialized in innovative solutions for tunnel and underground projects. For over 20 years, we use our broad expertise in transportation, infrastructure, water conveyance, energy and mining projects to help our clients overcome challenging conditions and providing innovative solutions from conceptual and planning phases through construction and operation.

Our tunnel and geotechnical engineering services cover all stages of a project:

  • Conceptual to Final Design
  • Program & Construction Management
  • Construction Site Support
  • Tunnel Inspection & Rehabilitation
  • Mine Access Tunnels & Shafts
  • Independent Design Verification Services
  • Building Information Modeling (BIM)

With our diverse team of experts and young professionals, we are represented in all major global markets with offices in North America, Latin America, Europe and Asia.


Principal: Vojtech Gall, PhD, PE;

Principal: Kurt Zeidler, PhD, Ceng;

Principal: Nasri Munfah, PE;

Partner: Dominic Reda