GC Group

Mr. Harald Golser (CEO)

Mr. Anton Kaltenböck (Business Development)

Geoconsult ZT GmbH

Wissenspark Salzburg Urstein
Urstein Süd 13
5412 Puch bei Hallein
T: +43 662 65965 0 

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Web: www.geoconsult.com



CG GROUP  is an independent and family-owned global business offering integrated engineering and consulting services for infrastructure projects.More than 2000 projects in over 50 countries have been successfully completed over the years.

As one of the world’s leading tunnel consultancy specialists, GC Group has provided services to owners and contractors for over 1500 underground projects in the fields of transportation, energy, mining, water supply and disposal, civil defence and other applications. Our scope of activity encompasses the full range of underground construction, in all conceivable ground conditions from soft ground such as sands and clays through lope debris, weathered or faulted rock, to solid hard rock. Our staff is also fully experienced in both conventional tunnelling methods, and in mechanical shield and TBM excavation.


GC Group is highly specialized in following fields:

  • Geotechnics, tunnelling, geology and natural resources
  • Structural engineering
  • Electrical engineering
  • Water and Environment
  • Transport and infrastructure  
  • Geotechnical monitoring, Instrumentation and data management


Geoconsult offers a wide range of design and consulting services in various fields, from initial project ideas to turnkey realisation e.g.: Feasibility studies and analyses, preliminary design, detailed design, alternative proposals, environmental impact studies and assessment, public relations, public participation models, cost estimates, tender documents (from unit price to turnkey, BOT and PPP, international models of FIDIC and others), evaluation of bids, construction supervision and management, project and contract management (procedures and style of project layout following guidelines of NGO like WB and ADB), quality control, technical consulting, expert opinions, expertise, training programs, research & development, health and safety plan and management.

Special expertise exists in supplementary technologies such as compressed air, ground freezing, grouting and jet grouting. GC group enjoys worldwide recognition for the development of the New Austrian Tunnelling method and has applied it in many countries successfully. Many publications produced by GC Group’s staff bear evidence to the continuing efforts to improve the state of the art in tunnelling.