We have good chemistry.


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Zschimmer & Schwarz is managed with a clear mandate, and in close consultation with the shareholders: in the spirit of a responsible family business, we do not plan just for the next quarterly figures, but for future generations. Sustainable growth, a long-term vision, financial independence as well as prosperity and security for all employees are the pillars of our self-understanding. The international group is managed with a strong awareness for the continued healthy development of Zschimmer & Schwarz.

Dietmar Clausen was born in Flensburg, Germany, in 1961, and has a degree in Business Administration. After working for Deloitte (1982 – 1992), Linde AG (1992 – 2005) and Kion GmbH (2005 – 2007) he joined Zschimmer & Schwarz in 2007.

Dr Martin Haberl was born in Vienna, Austria, in 1959. After receiving his doctorate in technical chemistry, he worked for the Degussa Group in Germany (1985 – 1987), Spain (1987 – 1992) and Italy (1993 – 2002). Dr Martin Haberl has been with Zschimmer & Schwarz since 2002.

Wolfgang Nowak was born in Duisburg, Germany, in 1959. After graduating in Engineering, he worked for Bakelite AG (1980 – 1997), Rhenania Coatings (1997 – 2005) and Byk (2005 – 2017) before joining Zschimmer & Schwarz in 2017.


Dr Christoph Riemer was born in Hamburg, Germany, in 1969. After receiving his doctorate in organic chemistry, he worked for Süd-Chemie AG (1998 – 2005, Germany and the UK), McKinsey & Company, Inc. (2006 – 2008, Germany), Süd-Chemie AG / Clariant AG (2008 – 2012, Germany and South Africa) and Wacker Chemie AG (2012 – 2022, Germany). Dr Christoph Riemer has been with Zschimmer & Schwarz since August 2022.