Management & Supervisory Board

Forward-looking Leadership For Sustainable Corporate Success

The great role that companies play in a society is becoming more anchored in the collective consciousness and is being understood more comprehensively scientifically. Far beyond the economic added value, corporations, medium-sized companies and small companies have a significant influence on the population and our world as a whole, the local region, the neighbors and employees in particular. Responsible leadership enables the highest added value for all parties.


Jörg Leinenbach, CEO

At the company since 2015, Jörg Leinenbach has been responsible for the commercial processes and at the same time manages all value-adding operational processes. In 2023, he was also appointed as CEO and henceforth leads the Group. Before joining IBU-tec, he worked at RAG Saarberg AG in investment management and at Prego Services GmbH as commercial division manager. Mr Leinenbach studied business administration at Saarland University and specialized in tax law as well as trust and auditing. His professional career has already included various management positions in investment management, controlling, investment and accounting.

Supervisory Board

Supervisory Board

Ulrich Weitz – Berlin – Chairman of the Supervisory Board

From 2000, Ulrich Weitz expanded the company to its current form and successfully floated it on the stock market. He was responsible for the entire IBU-tec Group as CEO until 2023 and is now chairman of the supervisory board. After studying mechanical engineering, he worked in Paris for the elevator manufacturer OTIS, where he held management positions in the areas of quality, design and production. Weitz then moved to Winkler + Dünnebier AG, where he was plant manager responsible for human resources for over 750 employees.

Sandrine Cailleteau – Paris

Ms. Cailleteau has been on the company's board of directors since 2007. After completing her MBA in Paris, she worked for Sanofi in M&A and as a Licensing Director, since then she has held various management positions at well-known pharmaceutical companies (e.g., Hesperion, Fournier Pharma) in France, England and Switzerland and at the banking house of Michel Dyens & Co. In 2013 she founded the SCiH Advisory and is now managing director at RBC Capital Markets, an international investment bank, where she oversees the European Healthcare division.

Dr. Jens Thomas Thau – Berlin

Dr. Thau was appointed to the Supervisory Board of IBU-tec in 2012 and holds the deputy chairmanship. He also advises the Group on legal issues. He completed his studies in New York and Berlin, after which he worked as a repositorium coach and as a lawyer. Today he is managing director of AGV Banken, which he also advises as chief legal officer, is a member of the EBF banking committee and owner of Thau Rechtsanwälte. He is a specialist lawyer for employment law and holds current certificates from Deutsche Börse as a qualified supervisory board member and as a member of the audit committee.

Isabelle Weitz – Paris

Isabelle Weitz is a communications consultant at Omnicom PR Group in Paris and was elected as the fourth member of the Supervisory Board by the Annual General Meeting in April 2023. She studied European Studies and International Journalism in London. After completing her master's degree, she first worked for the financial technology company Fractal Labs. She then moved into consulting at the international communications agency Fleishman Hillard, where she worked for clients in the financial services, automotive and technology sectors.