Gruner AG, with headquarters in Basel, is a Swiss engineering services company for private and public clients.

With around 1100 employees from 49 nations, Gruner is represented at over 30 sites in Switzerland, Europe and internationally.

The next 40 years, the company was almost exclusively involved in the field of hydraulic engineering, hydropower plants and high dams worldwide.

In 1979, Böhringer AG became part of the Gruner Group in the business areas of local and regional civil engineering, utilities and waste management.

Likewise, in 2005, Berchtold + Eicher Bauingenieure AG became a member of the Gruner Group.

Roschi + Partner AG, operating in facilities engineering and energy consultancy, was integrated into the Gruner Group in 2006.

Similarly, Gruner GmbH was founded in Vienna to increase its presence in Austria.

Kiwi Systemingenieure und Berater AG became a member of the Gruner Group in 2011.