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    HISTORY

    Year HOLINGER Ingenieure GmbH Deutschland HOLINGER Gruppe
    2020 Acquisition of WETZEL + PARTNER Ingenieurgesellschaft mbH, Germany  
    2019 Hausach office opened, Germany  
    2019   Acquisition of Cometti Ingegneria SAGL, Besazio (Mendrisio)
    2019 Acquisition of HOL-ING Planungs- und Beteiligungsgesellschaft mbH, Hamburg and Berlin  
    2019   Stallikon office opened
    2018   Acquisition of CERT Ingénierie SA, Sion and Martigny
    2018 Participation WETZEL + PARTNER Ingenieurgesellschaft mbH, Germany  
    2018   Mendrisio office opened
    2017   Chur office opened
    2016   Acquisition of TK Consult AG, Zurich
    2015 Trier office opened  
    2015   Acquisition of share majority of IBG AG, Volketswil
    2014 Dresden office opened  
    2013   Hünenberg (Zug) office opened
    2013   Integration of all the employees of Spring Ingenieure AG, Thun
    2012 Chemnitz office opened  
    2012   Merger of the companies Steinle Ingenieure GmbH and HOLINGER Ingenieure GmbH into HOLINGER Ingenieure GmbH, Germany
    2011   Sole proprietorship H-Geol, Oberhofen Berne acquired
    2010   Transfer of employees of the sewage Treatment plant Steinle Process Technology GmbH and founding of Steinle Ingenieure GmbH, Germany
    2010   HOLINGER IC founded
    2009   Küsnacht office opened
    2008   Frauenfeld office opened
    2007   Frick office opened
    2007   Fusion of Künzler & Partner AG, Lucerne and WSA Ingenieure und Planer AG, Zurich
    2004   Outsourcing environmental analysis laboratory and founding ENVILAB AG, Zofingen
    2003   Schwyz office opened
    2003   Zurich branch office moves to Winterthur
    2002 HOLINGER Ing GmbH, Hohentengen founded  
    2002   Lausanne office opened
    2002   Participation aqua-System AG, Winterthur
    2000   Management Buy Out
    1996   HOLINGER SA, Luxembourg founded
    1994   Merger with Geological Institute Dr. Schmassmann AG
    1993   Basel office opened
    1992   Lucerne branch opened
    1989   Baden branch opened
    1988   Environmental analysis laboratory in Aarau founded
    1983   Olten office opened
    1967   Acquisition by Motor Columbus Ingenieure AG and conversion to joint-stock Company
    1956   Berne branch opened
    1950   Zurich branch opened
    1945   Aarau branch opened
    1933   Ingenieurbüro E. Holinger, Liestal founded