1953
Foundation of Messo-Apparatebau within the privately owned Standard-Kessel-Gesellschaft, Duisburg by Messing and Sowen

1960
Formation of the separate company named Standard-Messo Duisburg GmbH & Co. KG in Duisburg, Share holders:  Messing, Sowen, Standard-Kessel

1976
Acquisition of the Standard-Kessel shares by Mannesmann AG, Düsseldorf

1983
Complete takeover of the company by Mannesmann Anlagenbau AG

1986
Divisional integration as Messo-Chemietechnik into Mannesmann Anlagenbau AG

1992
Interchange of Messo within the Mannesmann Group from Anlagenbau to Krauss-Maffei AG, München and reformation of the separate company:
MESSO-CHEMIETECHNIK GmbH, Duisburg

1998
Take over by Heinrich Frings GmbH & Co. KG, Bonn (Germany)

1999
Acquisition of the evaporation / crystallisation division of
Balcke-Dürr AG, in Ratingen (Germany) together with the subsidiary companies in France and Italy

2001
Acquisition of the evaporation / crystallization division of VA TECH WABAG in Winterthur, formerly known as EscherWyss

2001
Registration of MESSO Inc. in Chicago (USA)

 
2004
Integration of the Messo group into the GEA group
Formation of the GEA Messo GmbH in Duisburg