Supervisory Board

Dr. Ernest-W. Droege

Chairman of the Supervisory Board

Walter P.J. Droege

Deputy Chairman of the Supervisory Board

Dr. Alexander Kaufmann

Member of the Supervisory Board

Jörg Kieborz

Member of the Supervisory Board

Evelyn Valentek

Member of the Supervisory Board, MBA

The Droege Group

Since 2011, Trenkwalder belongs to the Droege Group, based in Düsseldorf, Germany. Droege Group (founded in 1988) is an independent advisory and investment company under full family ownership. The company acts as a specialist for tailor-made transformation programs aiming to enhance corporate value. Droege Group combines its corporate family-run structure and capital strength into a family-equity business model. The group carries out direct investments with its own equity in corporate spin-offs and medium-sized companies in "special situations".

With the guiding principle "execution - following the rules of art", the group is a pioneer in execution-oriented corporate development. Droege Group follows a focused investment strategy based on current megatrends (knowledge, connectivity, prevention, demography, specialization, future work, shopping 4.0). Enthusiasm for quality, innovation and speed determines the company’s actions. In recent years, Droege Group has successfully positioned itself in domestic and international markets and operates in 30 countries.

Our Executives

Rahul Agarwal

Head of Online Marketing

Richard Erker

SVP Legal

Andreas Leitgeb

SVP Accounting

Michaela Meier

SVP EdTech & Mobile Learning

Karl Neumann


Ulrike Maria Pötscher

Head of Corporate Communications

Mladen Ristic

Head of Treasury

Maureen Talach

SVP Controlling