The company was founded in 1990 by Wilhelm Güntensperger and his wife Sabina Güntensperger. Wilhelm Güntensperger started as an independent machine assembler. Through a lot of commitment and always competent appearance, the company has developed into a complete plant supplier. Today the company is a plant manufacturer in the field of special machine construction.
- 01.01.1990 Foundation of G-Sperger Montagen with registered office in 8880 Walenstadt
- 01.01.1992 Transfer of registered office to 8733 Eschenbach
- 30.06.1993 Transformation into G-Sperger Montagen AG
- 22.01.2000 Transfer of registered office to 8640 Rapperswil
- 22.01.2000 Name change to GSM Maschinenbau AG
- 01.10.2017 Relocation to 8732 Neuhaus and occupation of the new production hall
- 01.01.2018 Certification ISO 9001
- 19.04.2018 Melanie Güntensperger and Michael Güntensperger become members of the Board of Directors
We have been ISO 9001 certified since 2018.