Rieger was founded in Aalen in 1879.

Today, Rieger is divided into the Process Technology and Aluminum Foundry divisions and is a member of the globally active Neumo Ehrenberg Group. Our aluminum foundry produces aluminum castings of the highest quality, which are used in the automotive industry and in mechanical engineering. In the field of process technology, we are very successful in the manufacture of valves, individual solutions such as valve blocks and pipe structures, as well as plant technology, including valve manifolds, units, CIP systems and plug-and-play modules of all kinds.

All products are made of stainless steel. Our customers can choose from a full range of steel grades from AISI 301, AISI 316L to Hastelloy® and special alloys such as 1.4529, 1.4539/AL6XN.