Min Zheng

Integration Management & Business Development Strategy

Min joined DiaSys in December 2023 as Chairman and Managing Director. He is likewise Chief Technical Engineer as well as Director of Business Development at Mindray IVD.

He offers more than 27 years of working experience in research & development and business management for IVD industry companies in U.S.A. (Beckman Coulter, Inc. in Miami, FL) and P. R. of China (Mindray in Shenzhen). Min holds five US patents in IVD system design and method. His educational background includes Master of Science degrees in Physical Sciences and a Master of Business Administration.

Dr. Guenther Gorka

Business Development and R & D

In 1991, Dr. Guenther Gorka founded DiaSys Diagnostic Systems GmbH with Rolf Greiner and Dr. Manfred Probst; since then has been managing partner and C.E.O.

Dr. Gorka studied chemistry and biochemistry at University of Stuttgart, Germany, and obtained his doctorate at University of Hohenheim, Germany. After a short sidestep into food processing, he moved into the diagnostic industry where he has been continuously operating in several positions since 1978. He already had an important share in the development of clinical diagnostic tests, last as Technical Director of Human Diagnostics in Wiesbaden, Germany.

Dr. Gorka managed DiaSys in co-operation with Dr. Probst from 1991 until the end of 2010; he was responsible for research, quality assurance, sales and marketing. When Dr. Probst retired by the end of 2010, an expanded management board in which Dr. Gorka is still a leading member, took over the duties of a company that has grown tremendously over two decades. In October 2024, Dr. G. Gorka handed over responsibility for marketing and sales to Dr. Jan Gorka. This allows Dr. G. Gorka to focus on strategic development and the product portfolio. 

Peter Zoeller

Supply Chain Management and Production

Peter Zoeller joined DiaSys in June 1993. Since then he has been taking part in the development and the growth of the company with steadily expanded responsibilities.

Following his professional education with Hoechst AG in Frankfurt (job description: skilled chemical worker), Peter Zoeller started his academic studies of chemical engineering with the main focus on laboratory technology at Fresenius Institute in Wiesbaden which he completed 1991 as Certified Chemical Engineer.  After several years of employment with Hoechst AG and the state Medizinal-, Lebensmittel- und Veterinäruntersuchungsamt Südhessen (literally translated as medicinal, food and veterinary investigation office, Southern Hesse) in Wiesbaden, he started his career with DiaSys Diagnostic Systems GmbH as Chemical Engineer in the “biochemical production” division in June 1993.

Already 2 years later, he was appointed Production Manager and, after having successfully completed his additional apprenticeships as Industrial Bachelor as well as Quality Manager, he was assigned responsibility for the entire manufacturing process of DiaSys in the year 2000.

As General Manager, Peter Zoeller has been responsible as from January 2011 for the divisions Customs Logistics Centre, Facility Management, IT, Order Processing, Production, Purchasing as well as Quality Management and is taking care of various companies within DiaSys group. On January 25, 2019 Dr. Jan Gorka took over responsibility for Quality Management.

Dr. Jan Gorka

Finances, Quality Management, Sales and Marketing and After Sales Support

In October 2017, Dr. Jan Gorka joined DiaSys Diagnostic Systems GmbH as Assistant to the Management Board becoming a full member of it in January 2019.

Dr. Jan Gorka is a pharmacist; he studied at University of Mainz, Germany obtaining a doctor´s degree in analytical chemistry. The research focus during his doctorate at University of Frankfurt, Germany was the identification and quantitation of proteins and peptides by HPLC and mass spectrometry (Proteomics).

Subsequently, Dr. Jan Gorka became a lab head and Head of Quality Control at the company Merz Pharma, Reinheim in Germany followed by a position as Qualified Person and group head of final product control at STADA Pharma, Bad Vilbel in Germany.

As C.E.O. of DiaSys GmbH, Dr. Jan Gorka is responsible for Finances, Quality Management, Sales, Marketing as well as for Regulatory Affairs, Quality Control and After Sales Support including the Technical Service team.