Press Release

Stefan Müller to become new Chief Financial Officer of Carl Zeiss AG

Stefan Müller, currently Chief Financial Officer of Paul Hartmann AG and previously member of the Management Board of the ZEISS Industrial Quality & Research segment, will take on the position of Chief Financial Officer of Carl Zeiss AG starting 1 January 2024.

7 December 2023

OBERKOCHEN, Germany | 7 December 2023 | ZEISS Group

The Supervisory Board of Carl Zeiss AG has appointed Stefan Müller the new Chief Financial Officer (CFO) of Carl Zeiss AG effective 1 January 2024. Müller is currently CFO of Paul Hartmann AG in Heidenheim, Germany. Previously, he worked at ZEISS for around 17 years in different positions, most recently as CFO and member of the Management Board of the ZEISS Industrial Quality & Research segment.

Stefan Müller succeeds Dr. Christian Müller, who left the company at his own request in fall 2023 after more than 20 years at ZEISS.

“We are pleased to have found a very suitable successor with Stefan Müller. He is already familiar with ZEISS from different perspectives and responsibilities at the Semiconductor Manufacturing Technology, Medical Technology, and Industrial Quality & Research segments. Most recently, he also proved his expertise and leadership abilities outside of ZEISS,” says Dr. Michael Bolle, Chairman of the Supervisory Board of Carl Zeiss AG. As a member of the Executive Board of Carl Zeiss AG, Stefan Müller will be responsible for different areas, including Business Services & Infrastructure, Auditing & Risk Management, Export Control, Health, Safety and Security, in addition to Finance and Controlling, Taxes, and Legal.

Short profile:

Stefan Müller has been CFO of Paul Hartmann AG in Heidenheim, Germany, since 2020. There, he is responsible for Finance, Controlling, Legal, Mergers & Acquisitions, and IT ‒ as well as Investor Relations, Internal Auditing, Risk Management, the CMC division, and market activities in Austria and Switzerland. Müller worked at the ZEISS Group for 17 years until 2020, most recently as CFO and member of the Management Board of the ZEISS Industrial Quality & Research segment. Previously, he held various leadership positions at the ZEISS Medical Technology and Semiconductor Manufacturing Technology segments, including in Strategic Business Development, Controlling, Finance, Accounting, Risk Management, as well as in the M&A area at Group headquarters, and also served as CFO of ZEISS Medical Technology in the USA. Müller began his professional career in the field of finance and investment. He studied business administration in Heidenheim and is a certified chartered financial analyst (CFA). He also completed an MBA from INSEAD Business School in France.

Press contact Jörg Nitschke

Head of Corporate Brand, Communications and Public Affairs


ZEISS is an internationally leading technology enterprise operating in the fields of optics and optoelectronics. In the previous fiscal year, the ZEISS Group generated annual revenue totaling 8.8 billion euros in its four segments Semiconductor Manufacturing Technology, Industrial Quality & Research, Medical Technology and Consumer Markets (status: 30 September 2022).

For its customers, ZEISS develops, produces and distributes highly innovative solutions for industrial metrology and quality assurance, microscopy solutions for the life sciences and materials research, and medical technology solutions for diagnostics and treatment in ophthalmology and microsurgery. The name ZEISS is also synonymous with the world's leading lithography optics, which are used by the chip industry to manufacture semiconductor components. There is global demand for trendsetting ZEISS brand products such as eyeglass lenses, camera lenses and binoculars.

With a portfolio aligned with future growth areas like digitalization, healthcare and Smart Production and a strong brand, ZEISS is shaping the future of technology and constantly advancing the world of optics and related fields with its solutions. The company's significant, sustainable investments in research and development lay the foundation for the success and continued expansion of ZEISS' technology and market leadership. ZEISS invests 13 percent of its revenue in research and development – this high level of expenditure has a long tradition at ZEISS and is also an investment in the future.

With over 40,000 employees, ZEISS is active globally in almost 50 countries with around 30 production sites, 60 sales and service companies and 27 research and development facilities (status: 31 March 2023). Founded in 1846 in Jena, the company is headquartered in Oberkochen, Germany. The Carl Zeiss Foundation, one of the largest foundations in Germany committed to the promotion of science, is the sole owner of the holding company, Carl Zeiss AG.

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