GEOTEST is a diverse mix of seasoned experts, dynamic young professionals, experienced veteran practitioners and innovative inventors. As an independent limited company, our vision and values are shaped by our motivated staff.


It is our aim to be the leading Swiss provider of services in geosciences. For this reason, “innovation” and “development” are not just empty phrases for us, but part of our everyday life. In the future, we want to offer our customers complete solutions more frequently by coordinating projects from A to Z – without unnecessary coordination among multiple parties and loss of know-how.


Together with our subsidiary TERRE Ltd, we are present in all corners of Switzerland – with eight locations and around 180 employees. We are also active outside the country’s borders, we carry out around 15 percent of our contracts abroad. So far we have worked on projects in over 15 countries, for example in Chile, Bolivia, Peru, Iceland, Norway, Greece, China, Germany, Austria, Afghanistan and Saudi Arabia.


We aim to earn your trust, through careful problem analysis, individual consultations and comprehensive, customised solutions. In order to provide you with the best possible results, we consistently invest in the training of our employees, in innovations and in our infrastructure.

Last but not least, we offer our employees an attractive and diverse range of work activities. Our entire stock holding is owned by our senior staff, which guarantees our economic independence.


GEOTEST is trustworthy, customer-oriented, quality-conscious and innovative.

These four basic values not only shape our understanding of service, but have also been defined and stipulated by our employees. A solid foundation is necessary for long-term success.


Our customers are from both the public and private sectors. We have enjoyed a long and productive cooperation with many of them.

Our customers include federal agencies (Switzerland/Germany/Austria), cantonal authorities, state offices (Germany/Austria), municipalities and communities, railway companies, mountain railways, power plant companies, engineering and architecture firms, mining businesses, banks, insurance firms, real estate companies, and private individuals.

GEOTEST management

  • Board of Directors


    Markus Liniger

    Dr. Sc. Nat., Geologe

    Verwaltungsratspräsident, Standortleiter


    +41 41 349 24 55


    Kaspar Graf

    Dr. phil. nat., Geologe

    Verwaltungsrat, Bereichsleiter


    +41 31 910 01 23

    Birgit Huber

    Dr. phil. nat., Geologin

    Qualitätsleiterin, Verwaltungsrätin


    +41 31 910 01 64

    Reto Hollenweger

    Dipl. Bauing. ETH

    Verwaltungsrat, Standortleiter (Stv.)


    +41 43 960 87 22

    Laurent Steidle

    Dipl. Geologe

    Verwaltungsrat, Bereichsleiter


    +41 31 910 01 67

    René Brinkmann

    Dipl. Bauingenieur FH / NDU KMU HSG

    Vorsitz der Geschäftsleitung, Verwaltungsrat


    +41 31 910 01 68

  • Executive Board

    René Brinkmann

    Dipl. Bauingenieur FH / NDU KMU HSG

    Vorsitz der Geschäftsleitung, Verwaltungsrat


    +41 31 910 01 68

    Bernhard Krummenacher

    Dr. phil. nat., Geomorphologe

    Mitglied der Geschäftsleitung


    +41 31 910 01 90

    Daniel Bieri

    Msc UZH / SIA

    Mitglied der Geschäftsleitung


    +41 41 349 24 58

    Daniel Tobler

    Dipl. Geologe ETH / SIA

    Mitglied der Geschäftsleitung


    +41 31 910 01 34


Quality is a matter of course for us. We maintain a strict quality policy and are constantly developing it further. Since 1998 we are certified according to ISO 9001.

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