The company Rieger was founded in 1879 in Aalen.

Today, Rieger with its departments stainless steel and aluminum is member of the global active NEUMO Ehrenberg Group .

Our aluminum foundry manufactures for decades quality aluminum castings, which are used in the automotive industry as well as in mechanical engineering applications.

In the stainless steel department we are working successfully in the fields of valves and weldments i.e. valves clusters and weld units. All products are generally made of stainless steel, with the full range of steel types covered by AISI 304, AISI 316L to Hastelloy and special materials.
The proven throughout years of service products and particularly our constructions in aseptic valve area are mainly used in the  chemical, pharmaceutical and food industries.

Experienced and motivated employees ensure the high quality of our products. Modern production technologies such as machining centers form the basis for trouble-free use of our fittings, valves and components.

Better is the enemy of good - according to this motto develops our construction department continuously new solutions that help our customers meet their process optimization.

Inspired by customers' challenges, always workable solutions arise for many other customers. Our commitment to continuous improvement was first rewarded by the certification according to ISO 9001 in the year of 2005. The recurrent re-certifications are a guarantee for our customers that also in future innovation, customer orientation and reliable products are our main focus.