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The grenke AG Board of Directors

Most of the leading figures at grenke have been with the company for a long time, and this continuity pays off.

Dr. Sebastian Hirsch


Dr Sebastian Hirsch joined grenke in 2004. After holding senior positions in Controlling at grenke AG and serving on the Board of Directors of grenke Bank AG, Dr Hirsch returned to grenke AG in 2013, initially as General Representative and since 2017 as Board Member for Controlling, M&A, Treasury, Taxes and Investor Relations. On 1 December 2022, as CFO he also took over, initially on an interim basis, as Chief Executive Officer. On 16 February 2023, he was appointed CEO. He is therefore responsible for IT and Digitalisation, Human Resources, ESG, Corporate Communications, Investor Relations and Property & Facility Management.

Gilles Christ

Chief Sales & Marketing Officer

Raised in Alsace, finance, marketing and strategy specialist Gilles Christ has been with grenke since 1998. Since then he has been responsible, among other things, for establishing the company in France and other countries. Since May 2010, Christ has been a member of the Board of Directors, with responsibility for Marketing and Sales as well as Legal.

Dr Martin Paal

Chief Financial Officer

After holding several positions at renowned international consulting firms and the central institution of the cooperative banks, Dr Martin Paal joined grenke AG as Vice President Controlling in June 2022. In March 2023, he was appointed Chief Representative and Senior Vice President and Head of the Finance Division. Effective as of July 1, 2024, he has been appointed to the Board of Directors of grenke AG and appointed Chief Financial Officer. In this role he is responsible for the Accounting & Tax, Controlling and M&A, and Treasury and Reporting departments.

Isabel Rösler

Chief Risk Officer

Since January 1, 2021, Isabel Rösler strengthens the Board of Directors as the Chief Risk Officer (CRO). In this newly created role, she is responsible for key internal control functions such as risk control, compliance, money laundering prevention and data protection. She is also in charge of the Credit Centre and the Administration Department. After graduating with a her degree in Business Administration, Ms Rösler worked in auditing and in the management of Landesbank Baden-Württemberg, and was most recently the Managing Director of SüdLeasing GmbH and SüdFactoring GmbH.

Areas of Responsibility of the Board of Directors Members

Dr Sebastian Hirsch (CEO)
Gilles Christ (CSO)
Dr Martin Paal
Isabel Rösler (CRO)





Human Resources



Corporate Credit

Investor Relations


Treasury / Corporate Finance

Data Proctection


Internal Audit

Property- & Facility-Management

Risk Management