Executive and Supervisory Board

Thomas Arnold – Chief Executive Officer (CEO)

As a graduate in economics Thomas Arnold held management positions in various renowned international companies in the chemical industry and trade.

From 2013 to 2015 Thomas Arnold was General Manager of Biesterfeld Spezialchemie GmbH and drove the global operative business and its development. Since April 2015 Thomas Arnold is CEO of Biesterfeld AG and is responsible for the strategic development of the Group.


Carsten Harms  – Member of the Executive Board

Carsten Harms began his professional career in 1986 as a trainee of the Biesterfeld Group. As Key Account Manager and later as Product and Business Manager he has driven the international expansion of the Division Biesterfeld Plastic to one of the leading Distributors for Plastics in Europe and Northern Africa - since 2007 in the position as Managing Director.

Since July 2014 Carsten Harms is a member of the Executive Board of Biesterfeld AG.


Hagen Reck – Member of the Executive Board

Hagen Reck (47) has more than 20 years of professional experience, gained working primarily in internationally active family-owned companies. With a master´s degree in business administration he worked in a wide range of national and international finance and management positions in companies in a diversity of industries, such as pharmaceuticals, electronics, aviation and automotive. 

In February 2019, Hagen Reck took over the responsibility as Chief Financial Officer of Biesterfeld AG.


Supervisory Board of Biesterfeld AG

The members of the Supervisory Board of Biesterfeld AG:

  • Dirk J. Biesterfeld - Chairman of the Supervisory Board (3rd right)
  • Carola Weger - Deputy Chairman (1st right) 
  • Dr. Jens Kruse (2nd right) 
  • Christoph Schopp (3rd left)
  • Dr. Rolf Stomberg (2nd left)
  • Jürgen von Wendorff (1st left)



Dirk J. Biesterfeld, Chairman of the Supervisory Board, and his daughter Carola Weger, Deputy Chairman of the Supervisory Board of the Biesterfeld AG.