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Our Management Team

The management team behind Heliatek is made up of internationally recognised experts in the lighting and semiconductor industry with impressive expertise and many years of management experience.

Chief Executive Officer – Guido van Tartwijk

Born in the Netherlands, Guido van Tartwijk holds a PhD in Physics and has more than 20 years of experience in start-up, turnaround and in Europe, China and the USA. He has many years of experience in the LED lighting and optoelectronics industry. His career has taken him to various top management positions, among others, for Philips Lighting, where he was responsible for the establishment of the global Philips LED Lighting Hub in Shanghai, and was Senior Vice President and General Manager of Philips LED Electronics. 

Guido van Tartwijk has an impressive track record of introducing innovations in record time towards sustainable and profitable growth in global markets. He led the team that was awarded the prestigious L Prize for LED lighting by the United States Department of Energy in 2009.

Chief Operating Officer – Michael Eberspächer

The graduate engineer in electrical engineering and Master of Business and Engineering has more than 15 years of experience in management and leadership in the solar industry in the field of production, quality assurance and operational excellence.

Among other things, Michael Eberspächer has managed international development and ramp-up projects, developed divisional strategies and has been jointly responsible for the launch of three production plants.

Chief Financial Officer – Thomas Martin

Thomas Martin has a Diploma in Business Administration and 15 years of experience as international Business Controller and CFO in leading companies in the automotive and lighting industries.

He has a formidable track record in cost management to foster profitable growth in the area of accounting, budget planning, controlling, liquidity planning, as well as investment and M&A financing.

Chief Technical Officer – Jan Birnstock

Jan Birnstock has a PhD in Physics and is an internationally recognized expert in the field of organic electronics with many years of experience in the OLED industry. Milestones in his career include his work at Siemens, where he conducted research on polymer LEDs, and at NOVALED, where he was most recently Vice President Technology, responsible for customer projects and development work.  

Jan Birnstock has many years of experience in management positions and in the area of Customer Relationship Management (CRM), for example, for the Asian region. He is the inventor and co-inventor of more than 60 patent families.