C&M Steel – Quality since 1979

For over 40 years we have been offering our customers a wide range of products and services. In doing so, we are committed to quality and do our best to provide you with excellent products.

The praise of our customers is the desired goal of our work. Because only when you are satisfied, we are satisfied. At C&M Stahl, the contact between our customers and our employees forms the bond for our success.

Your recognition is our motivation.

Taking responsibility

But we are not only committed to our customers and partners. We also feel responsible for our shared environment. Therefore, it is part of our corporate philosophy to give back by engaging in charitable causes or committing to make a positive contribution to community-building initiatives.

We are a member of:

As a one-stop shop company, we will continue to focus on satisfying our customers needs and building trust. Our product diversity is what sets us apart. Even if you have a complex request – flexible options enable us to meet your needs.

With the DIN EN ISO 9001:2008 certification as well as the MGMT and DAR certificates we have proven our efficiency and our high standards. Our customers include companies from the mechanical engineering and tank construction, commercial vehicles, agricultural machinery, wind energy, rail vehicles, plant engineering and steel construction sectors.

Every company is based on the strength of its employees.
Therefore, it is important to us to continuously train our employees. Training cours-es and personal development courses are therefore an integral part of the corpo-rate culture at C&M Stahl.
Our customers expect high-quality products and excellent service. We draw our driving force and motivation from this expectation.

We can work according to standardized formulas. However, our true strength comes when we are allowed to produce tailor-made solutions according to the in-dividual wishes of our customers. Customer satisfaction is our top priority and the heart of our success. We see ourselves as a partner at your side. We listen, recog-nize problems, set goals together with you and find solutions.

  • 1982: Foundation of the first company as C + M Chemikalien-Metall Handelsgesellschaft mbH & Co. KG by Karin Hoppe as shareholder of the GmbH and limited partner of the GmbH and Co. KG and by her children Susanne and Christian. Initially, the company was limited to the execution of drop shipments.
  • 1984: A branch office for drop shipments is opened in Siegen.
  • 1988: Change of the company name to C & M Stahlhandel GmbH & Co. KG.
  • 1990: Foundation of C & M Stahlservice GmbH & Co. KG by Winfried Hoppe as managing partner.
  • 1991: Start of production of C & M Stahlservice GmbH & Co. KG with initially four employees. A newly installed plasma torch enables the company to produce flame-cut parts in the plasma range in thicknesses from 2 to 30 mm and in the oxyfuel range in thicknesses from 30 to 100 mm.
  • 1993: Dissolution of the Siegen branch. Customer service in the Siegen area is now taken over by the office in Hamm.
  • 1995: QS certification according to DIN EN ISO 9002 by Germanischer Lloyd and the Dutch Certification Council.
  • 1996: Relocation of the C & M Stahlhandel GmbH & Co. KG, as well as the administration of C & M Stahlservice GmbH & Co. KG into the office building in Hamm, Klutestraße 9. 17 employees in total are now working in both companies to ensure that customer requirements are met quickly and satisfactorily.
  • 1998: Expansion of the staff by hiring the first trainees.
  • 2004: The oxy-fuel burning system is converted to digital control. The improved synchronization of the two drive motors enables even more precise adherence to the specified tolerances.
  • 2005: The plasma torch is also converted to digital control.
  • 2007: Christian Hoppe becomes managing partner of the companies.
  • 2014: Expansion with a sandblasting system for surface finishing.
  • 2015: Expansion by a chamfering robot, which can chamfer your flame-cut parts up to a chamfer depth of 200 mm.
  • 2018: Takeover by the Rosenberger group of companies.
  • 2019: Expansion of the service portfolio by 10,000 sqm of production area and acquisition of a new laser system for welding groups.
An overview of our current certificates can be found in the download area.

Rosenberger GmbH

Duisburger Straße 24
41460 Neuss

Tel.: +49 (0) 21 31 – 709-0
Fax: +49 (0) 21 31 – 709-100



C&M Stahl GmbH

Klutestr. 9
59063 Hamm

Tel.: +49 (0) 23 81 – 95 00 5-0
Fax: +49 (0) 23 81 – 95 00 5-19




Waldstraße 14
57629 Linden (Westerwald)

Tel.: +49 (0) 26 66 – 95 93 96-0


Would you like to learn more? We will be happy to advise you!

We will advise you individually on the implementation of your project. From con-tract work to holistic projects – we are the reliable partner at your side.