The GRENKE AG Board of Directors

Personal information

Born in Cottbus on 28 February 1981
Married with two children

Milestones

• After completing a BA in Business Administration, Dr. Sebastian Hirsch began his career in 2004 at GRENKE AG, where he initially co-managed the Group’s refinancing.
• From 2006 to 2009, Dr. Hirsch gained an MA in Banking and Finance while heading up the entire Controlling department. In addition he was responsible for Grenke Group’s 2008 consolidated financial statements.
• In 2009 he moved to GRENKE BANK AG and was initially responsible as a General Manager and from 2011 as a member of the Board with responsibility for Markets.
• In 2013, Dr. Sebastian Hirsch initially joined GRENKE AG as General Manager and was appointed to the Board of Directors with effect from 1 January 2017. He is responsible for Controlling, M & A, Treasury, Legal, Taxes and Investor Relations and was appointed Chief Financial Officer with effect from October 2020. The Supervisory Board of GRENKE AG has appointed Dr Sebastian Hirsch additionally as the Deputy Chair of the Board of Directors effective November 1, 2021.
• In 2021, Dr. Sebastian Hirsch awarded his Doctorate at the Steinbeis University.
• With the resignation of Michael Bücker, he took over as interim Chairman of the Board of Directors on December 1, 2022. On 16 February 2023, he was appointed Chief Executive Officer of GRENKE AG. Dr Hirsch continues his duties as CFO on an interim basis. 

Personal information

Born in Wissenbourg, France on 15 April 1970
Married with two children

Milestones

• Gilles Christ studied Sociology at the Strasbourg University. In 2005 he completed his MBA – with a focus on finance, marketing and strategy – at Reims Management School.
• He began his career in 1995 at Groupama - a French insurance company, where he worked in sales, providing B2B and B2C customer care.
• In 1998 he moved to GRENKE, where he prepared and implemented our market entry in France.
• From 1999 to 2007 he managed the French subsidiary and gradually took on responsibility for the international business of other GRENKE AG subsidiaries.
• In 2007 he became a deputy member of the Board of Directors with responsibility for all the international business of GRENKE AG’s subsidiaries.
• Gilles Christ has been a member of the GRENKE AG Board of Directors since May 2010. He is responsible for Marketing and Sales.

Personal information

Born in Jena on 11 July 1975

Single, no children

Milestones

• After graduating with a Business Administration degree, Isabel Rösler worked at PricewaterhouseCoopers Wirtschaftsprüfungsgesellschaft (PwC) from 1998 to 2014 at the Frankfurt and Stuttgart locations where she trained as an auditor and tax consultant. During the majority of her career at PwC, and in her last position as senior manager, she focused on auditing leasing companies and banks.
• Following her career at PWC, Isabel Rösler assumed various executive roles at the Landesbank Baden-Württemberg Group. Among these positions was as the manager of the SüdFactoring task force whose goal was to reorganise the company and entirely replace the IT systems. 
• Ms Rösler’s most recent position was as the managing director of SüdLeasing GmbH and SüdFactoring GmbH for the areas of back-office and risk control.
• Isabel Rösler joined GRENKE AG’s Board of Directors as the Chief Risk Officer (CRO) with effect from January 1, 2021. As part of her new role, she is responsible for key internal control functions such as risk control, compliance, money laundering prevention and data protection. This will enable GRENKE AG to even better meet the more stringent regulatory requirements for internal control systems and further advance internal risk management. She is also in charge of  the Credit Centre and the Administration Department. Ms Rösler is a proven expert in the leasing and factoring business and has extensive experience in risk control and other back-office areas.