Since 1995, the family business GERES-Group has been in operation. Founded and led by Norbert & Carmen Wiemann, the company`s philosophy rests on the four bedrocks: efficiency, quality, confidence and strength. Realising high-graded projects with a goal-oriented implementation. We strictly practise lean management to achieve greater flexibility and maximum efficiency. In doing so, safeguarding sustainability outranks quantity in our project planning. Consequently, this approach successfully establishes trust for the internal and external long-term cooperation with the GERES-Group.