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Managing Board

Ralf P. Thomas, Dr. rer. pol.

Chief Financial Officer of Siemens AG

Dr. Roland Busch


(as of February 2, 2015)


Born on March 7, 1961 in Nuremberg, Germany

Special responsibilities

Finance and Controlling
Financial Services
Global Services


Secondary school, baccalaureate
Apprenticeship in business administration
Studied economics and business administration at the University of Erlangen-Nuremberg
Dipl.-Kfm; doctorate in income tax accounting (1994)

Professional history

Started his career with Siemens

Siemens Ltd., South Africa
- Head of Accounting and Treasury

Siemens Medical Solutions
- Performance Controller

Siemens Medical Solutions
- CFO of the Angiography, Fluoroscopic and Radiographic Systems Division

Siemens AG
- Head of Corporate Finance Accounting, Controlling, Reporting and Taxes

Siemens AG, Erlangen, Germany
- CFO of the Industry Sector

Member of the Managing Board of Siemens AG
- Chief Financial Officer

External positions

- Chairman of the Administrative Board of the Accounting Standards Committee of Germany (DRSC)
- Member of the Administrative Board and Treasurer of the Max-Planck-Gesellschaft e.V. (MPG)