- 1976 Company was founded as W.MÜLLER KG in Lohmar-Donrath, Germany
- 1995 Business expanded by purchasing larger production facility and moving headquarters to Troisdorf-Spich, Germany
- 1996 Extensive lab operation was set up in Lohmar-Donrath with a MÜLLER designed and manufactured co-extrusion blow molding machine
- 1997 W.MÜLLER USA Inc. was founded in West Springfield, MA-USA
- 1998 Company in Germany was re-named W.MÜLLER GmbH
- 2000 Expansion of the engineering offices in Germany doubles the space by adding a complete 3rd floor to the office building
- 2002 Our product range increases by developing and manufacturing horizontal extruders
- 2004 W. MÜLLER USA Inc. adds staff and services. A 6,500 square foot facility is purchased to set up and implement a full lab for sampling containers up to CoEx 7 layers
- 2004 To combine the operations in Lohmar-Donrath and Troisdorf-Spich Germany, a larger building in Troisdorf-Spich is purchased
- 2004 Joining the company founders Willi and Karin Müller, Brigitte Müller (Chief Executive Officer) and Dipl.-Ing Christian Müller (Chief Operations Officer) are appointed to direct the company and secure the future
