• Inside EOS Building 4, Krailling | © EOS

    EOS GROUP
    Executive Board and
    Leadership Team

Founder & Chairman 

Dr. Hans J. Langer | Founder & Chairman 


Dr. Hans J. Langer is the Chairman of the EOS GROUP, a family owned business. He is in charge of the strategic alignment of the EOS GROUP of companies. 

In 1989, Dr. Hans J. Langer founded EOS, with the vision to produce three-dimensional objects directly from CAD data, using laser technology. With a pioneering spirit and an in depth knowledge of market requirements, Dr. Langer expanded the company into an independent and world-leading manufacturer of high-end solutions in the field of additive manufacturing (AM). 

Prior to the founding of EOS, Dr. Langer was active in research at the Max Planck Institute for Plasma Physics, and Managing Director at General Scanning. He studied Physics at the Technical University of Munich and was awarded a PhD in Laser Technology at the Ludwig-Maximilians-University in Munich in 1980.

Executive Board

Marie Langer | Chief Executive Officer (CEO)


As the second founder generation Marie Langer took over as Chief Executive Officer (CEO) of EOS in October 2019 and is responsible for the strategic direction of EOS and its subsidiaries. Her key goals are digitization, industrialization and sustainability of 3D printing. This involves the integration of industrial 3D printing into the digital value chain of production and the further industrialization of the technology for series production. At the same time, Marie Langer is passionately driving forward a comprehensive corporate concept that combines innovation and sustainability with the goal of enabling a responsible manufacturing that offers customers competitive yet sustainable solutions, at the same time offering social and ecological benefits to the world.

Marie Langer has previously held various leadership positions at EOS, including management of the social venture program as well as corporate and business development for the broader EOS GROUP.

She is a qualified psychologist specialized on organizational and educational psychology, holds a degree in corporate leadership from the IESE Business School and before EOS founded ELEMENT A, an initiative to promote innovation in education.

Glynn Fletcher | Vice Chairman & President of EOS North America


Glynn Fletcher has been serving as president of North America, Inc. since March 2015. In addition he oversees a subsidiary of EOS: Advanced Laser Materials (ALM), a leading provider of high-performance polymers, including customized blends for the AM. Prior to joining the company Glynn Fletcher gathered extensive experience in different managing positions – including 18 years with GF Machining Solutions. 

Glynn Fletcher served a 4 year technical apprenticeship, has a mechanical engineering certificate. He has lectured on Machine Tool Design at Warwick University, UK & completed management development courses at IMD, Lausanne, Switzerland & Kellogg Business School, Chicago USA.

David K. Leigh, PhD | Chief Technology Officer (CTO) and Chief Operations Officer (COO) EOS of North America


David has served as the Chief Technology Officer (CTO) since January 2020.  He is responsible for the global metal and polymer system product lines, Software and Innovation Management, and continues to coordinate and support a global research & development team. Moving forward, he will foster the further industrialization of the entire product portfolio, develop the product portfolio roadmap and leverage software solutions. David joined EOS of North America as the Chief Operations Officer (COO) in 2018 which he still holds in parallel responsible for Engineering, Production, Service, Purchasing und Quality.

He brings in more than 30 years of experience in the additive manufacturing industry. Prior to EOS, David served as Senior VP of Emerging Technologies at Stratasys. David holds a Master of Science in Engineering and a PhD in Materials Science and Engineering from The University of Texas at Austin, one of the pioneering research universities involved in additive manufacturing.

Dr. Florian Mes | Chief Performance Officer (CPO)


Dr. Florian Mes joined EOS as the Chief Performance Officer of the EOS GROUP in January 2021 with a focus on Operational Excellence. In his role, he is responsible for Finance, Operations and IT. Previously, he was a partner at a management consultancy. He has extensive expertise in the areas of transformation and performance improvement programs, finance excellence and corporate finance.

Dr. Florian Mes holds a degree in business administration and economics from the University of Regensburg and a doctorate in business administration (Dr. rer. oec.) from the University of Wuppertal.

Ruha Reyhani | Chief Transformation Officer (CTrO)


Ruha Reyhani joined EOS as Chief Transformation Officer in July 2020. She leads the cultural transformation process kicked off at EOS, also enabling new ways of collaboration. Her main focus is on communications, positioning, internal digitalization, customer and employee experience, as well as introducing new mindset and new work concepts to develop employee and team performance regarding mindset and new work. For over a decade she has been involved in building companies and designing initiatives. The past five years she was a managing partner and strategist at an innovation agency that develops human-centered, entrepreneurial, and collaborative approaches for companies.

Ruha Reyhani has a Bachelor in Humanities (double degree program including sociology and philosophy) and completed an MBA.

Nikolai Zaepernick | Senior Vice President Life Cycle Solutions


Nikolai Zaepernick is responsible for the global aftermarket business at EOS. Heading the Life Cycle Solutions division, he leads the global service and powder business and drives the EOS portfolio digitalization. Nikolai joined EOS in early 2011, started as VP Strategy and Business Development, then took over the responsibility for the EOS business in Central Europe.

Before, he worked for Siemens for more than ten years in various operational functions, among others as VP Strategy for the Division ‘Drive Technologies’ or managing the East European business in the ‘Motion Control Solutions’ and ‘Automotive Plant Engineering’ division. The watch industry has been the starting point in his professional life, working for Cartier in Switzerland. Nikolai is a mechanical engineer and holds an MBA degree.

Extended Leadership Team

AMCM | Martin Bullemer
Juliane Finke | Senior Vice President Human Resources, EOS GmbH | © EOS
HR | Juliane Finke 
EMEA Region | Markus Glasser
Metal & Polymer | Dr. Hannes Gostner
Innovation | Dr. Marco Nock
APAC Region | Terrence Oh
CFO | Eric Paffrath 
Software | Martin Steuer 
Transformation | Dr. Tim Rüttermann 
COO | Horst Wladarsch