Team / Board Members

Dr. Stefan Hund
Dr. Stefan Hund brings extensive experience in top management strategy consulting to the dynamic TRI® management team. After several years with PWC and Arthur D. Little, Dr. Stefan Hund joined the in-house strategy department of Hilti AG. He pursued his career in several strategic and operational management functions in Hilti`s headquarter in Liechtenstein. Before joining TRI®, Dr. Stefan Hund managed a Sales Division covering the eastern half of the USA with over 100 employees. He holds a Master’s Degree in Business Engineering from K.I.T. and a Ph.D. from Vienna University of Economics and Business, is an avid mountain climber, and enjoys experiencing the globe's cultural diversity after living in 7 countries.
Sandro Venanzoni
Chief Technology Officer (CTO)
Sandro Venanzoni (Dipl. Ing. ETH) is responsible for the fields Research & Development, Quality Management and International Registration. During the past 5 years he has worked for Straumann with a growing responsibility in the division of Product & Technology. In his last position as Head of Product Management Sandro Venanzoni was in charge of the business division „Computer Guided Surgery“, which is a trendsetting technology in terms of the increasing digitalization within the dental implant industry. Sandro Venanzoni holds a master degree in Mechanical Engineering (ETH Zurich). His main objective to start working for TRI, is to take an active part in creating a successful future for a young and innovative Swiss quality manufacturer in medical technology.
Marc Matthijs
Chief Financial Officer (CFO)
Marc Matthijs has several years of experience as Senior Financial Officer in globally listed companies such as Zimmer Biomet Inc. and The Dow Chemical Company. In his previous role as CFO Europe and VP Finance EMEA, he was employed by Zimmer Biomet Inc. for 12 years. Here he successfully integrated the Biomet EMEA business, strengthened the competitive position, managed the launch of the European Logistic Centre & Warehouse, consolidated the supply chain, and much more.
Tobias S. Richter
Founder & Chairman of the Board
Tobias Richter looks back on an extensive experience in the implant industry. After his career start as a brand analyst and consultant in a management consulting in London UK, he first joined the Swiss-based market leader for dental implants and regenerative products Straumann AG in 2001. In his five year tenure, he was instrumental in product management and global launch of new product innovations, - such as SLActive -, eventually being responsible for the Marketing in the European Region. In 2007, Tobias Richter co-founded Implant Direct Europe AG where he build up the European business in 25 markets until the global business was sold to Danaher Group. Tobias Richter is part of the founding team of, the leading e-learning platform for dental implantology, and managing partner of the German dental practice group Dentabene. Tobias Richter is a passionate entrepreneur and believes in the continuing growth potential in implantology.
Dr. Valentin Chapero Rueda
Member of the Board
Valentin Chapero (born in 1956 in Madrid) is working as an investor/entrepreneur and enjoying his newly found freedom from the corporate treadmill. Valentin has been from 2002 until March 2011 CEO of Sonova Holding (Phonak), with CHF 1.6 billion the leader in the hearing health care device market. During Valentin`s tenure Sonova tripled its revenue, became the most profitable company in the industry and established the first integrated, multi-brand hearing health care business model composed of hearing instruments, consumer headphones, wireless communication systems, cochlear implants and a significant global direct-to-consumer retail operation. Before joining Phonak, Valentin was CEO of the Mobile Networks division of Siemens AG with a revenue of more than 5 billion Euro. Prior to this he was CEO of the Siemens Audiology Group, then the world’s largest hearing instrument manufacturer. Valentin graduated in Physics from the University of Heidelberg, Germany, and completed his doctorate with a thesis on medical physics.
Dr. Michael Peetz
Member of the board
Dr. Michael Peetz held several positions at Geistlich Biomaterials between 1990 and 2008, since 1998 as CEO. He was responsible for developing Geistlich Biomaterials becoming No. 1 globally in bone and tissue regeneration in the field of dentistry. From the end of 2008 - 2012 he was CEO of Camlog Biotechnologies in Basel, an international leader in implant dentistry with a worldwide distribution network. Dr. Peetz was also co-founder and director of the Osteology Foundation, Lucerne, a foundation, which deals with research and education in regenerative dentistry. Since 2012 he is President of Digital Dental Life AG, which licensed their WEB technology for training of dentists to the Dental Campus Association and other specialized dental associations. Dr. Peetz is a co-owner and board member of ReOss GmbH, which develops and distributes individualized bone implants.
Thomas Huth
Member of the Board
Thomas Huth is representing a Swiss investment company in the board of TRI Dental Implants Int. AG. Subsequent to his studies in European business economics in Munich, Madrid and London he gathered first experience in the business development unit of a german-english Internet-Startup before becoming an entrepreneur himself in 2002. In the end of 2003 he founded together with two business partners usedSoft AG, a dealer for used Software, and supervised the units Finance, Administration and Organisation in his function as CFO until his exit in January 2011. Following his role as CFO he devoted himself to the field of Corporate Investment Management. He founded Venture Garage GmbH and is member of the board in several German and Swiss companies.
Manfred Ulmer-Weber
Member of the Board
Manfred Ulmer-Weber is representing SHS Gesellschaft für Beteiligungsmanagement mbH in the board of TRI Dental Implants Int. AG. He joined SHS in 2010 as investment manager, since 2012 he is senior investment manager. SHS manages funds with investment focus on medical technology. SHS is on the market for more than 20 years and has invested in about 50 companies and developed many of them successfully. Manfred Ulmer-Weber studied international business economics at Eberhard-Karls-Universität in Tübingen and at École de Management in Strasbourg.
Christian Müller
Member of the Board
After an initial stint as a marine biologist, Christian Müller has spent the past 16 years of his working live in the IT software and professional services space, over 10 of which as an entrepreneur. After exiting Assentis Technologies AG in 2013, a Swiss-based FinTech that provides leading Customer Communication Management (CCM) solutions, Christian founded Strenia Consulting GmbH, which specialises in helping organisations predominantly in the financial services industry to realise their strategies for providing digital services to their end-customers. In the past couple of years Christian's focus has continuously shifted to investing in and actively supporting mostly tech-based, impact orientated businesses. In addition, he is an active board member of the Mercator Foundation in Switzerland. Christian holds a Bachelor’s degree in Biological Sciences from the University of Manchester and a Master’s in Information Technology from University College London.