1946 Founded by Fritz Albert Riegler in Mühltal near Darmstadt, Germany as a toolmaker for the plastics and rubber industry. A few years later the company started producing plastic parts
1962 A second plant in Grasellenbach (Odenwald) opens
1968 Horst Riegler, the son of the company founder, takes over as managing director
1994 A new production plant in Ober-Ramstadt near Mühltal opens
1996 Clean room (ISO 14644-1 - class 7 (class 10.000)) for injection moulding inaugurated
1996 Fabrication of ATP-free articles for use in hygiene analysis begins
1996 DIN EN ISO 9001 certification
1997 Clean room (ISO 14644-1 - class 7) for assembly in the Ober-Ramstadt plant inaugurated
1998 Fabrication of PCR clean products for use in biochemistry begins
2000 Expansion of the central high-rack warehouse in Ober-Ramstadt
2001 Expansion of the clean room (ISO 14644-1 - class 7) for injection moulding in Mühltal
2001 A second clean room for assembly in Ober-Ramstadt inaugurated
2002 Renewal of DIN EN ISO 9001-2000 certification
2004 New 3,000 m2 building for production, tool construction and administration opens in Mühltal
2005 With the inauguration of a fifth clean room the total capacity for clean room manufacturing increases to approximately 1,500 m2
2005 Renewal of DIN EN ISO 9001-2000 certification
2005 Acquisition by Wirthwein AG

