TANDHEELKUNDE GROEP NEDERLAND - Key Persons
Job Titles:
- Chief Executive Officer
- New Chairman
Ali Keles holds a Master's Degree in Dutch Law from the Erasmus University Rotterdam, the Netherlands. Since the beginning of his studies, Ali Keles started founding new ventures in various sectors. With nearly 20 years of experience in different fields of business, he has gained significant expertise in asset management, finance, and strategic business development. From 2010 to 2014, Ali Keles served as a member of the City Council of Barendrecht. Currently, he is also active as the chairman of the Netherlands Association of Corporate Art Collections, board member of and advisor to various companies and NGOs. The industries he concentrates on are finance, real estate, healthcare, technology, renewable energy and arts & culture. Within Tandheelkunde Groep Nederland, Ali Keles is responsible for all group assets.
Arjan van der Graaf has a background in technical informatics at the Leiden Educational Institute. He has also made various specialized additions in the field of IT Security and Microsoft 365. With 15 years of experience in B2C and B2B in both sales and support, Arjan van der Graaf is currently responsible for IT, telephony, process automation and project management within Lakeside Capital Partner's group of companies.
Gerard van Herpen has a background in Business Economics from University of Applied Sciences in Breda, the Netherlands. He has completed a vocational training in Business Administration. With over 25 years of experience, accumulated in different industries, Gerard van Herpen is currently responsible for financial administration within Tandheelkunde Groep Nederland.
Job Titles:
- Member of the Advisory Board
Henk van den Oever completed various studies including Business Administration in 1976 and became Public Accountant in 1991, graduating from the NOvAA in the Netherlands. Additionally, he finalized education programs in Tax Advisory in 2006 and in Governance for Commissioners and Supervisors in 2018. Henk started his career as an Assistant-Accountant after which in 1983 he founded his own firm Van den Oever Accountants and led this company successfully as the Managing Director until it was acquired by Boschland Accountants & Advisors in 2010. Henk has contributed to a broad range of NGOs as a volunteer, chaired in boards and is still a Supervisor within the Dutch Organization for the Accountants Profession (NBA). With his insights in accounting within various business industries, experience in mergers & acquisitions, together with a broad network, Henk van den Oever is a valuable Member of the Advisory Board of Tandheelkunde Groep Nederland.
Dr. Go completed his dentistry studies in 1978 at Radboud University in Nijmegen, the Netherlands and is since active as a practitioner. Over the years he has specialized, through postgraduate programs, in oral implantology, periodontics and endodontics. Currently, he is still attending courses and congresses internationally to keep up with the latest academic developments in dentistry. Dr. Go is registered in the NVOI (Dutch Association of Oral Implantology). Within Tandheelkunde Groep Nederland, Dr. Go is responsible for all medical affairs and serves as Chairman of the Board.
Maarten Passtoors graduated from the Michigan State & Cornell University in the USA. He started his career within Hilton International where he spent 10 years in different international management positions. He left the Hilton group to work for the holding of the Autobar Group as a Business Development Manager throughout Europe. Maarten Passtoors' human resources management career began in 1994 when he joined a European executive search firm. In 1997 he started an executive search firm with several partners, which rapidly grew into a highly successful organization employing up to 18 professionals. This company has since merged its activities with Boyden. Within Tandheelkunde Groep Nederland Maarten Passtoors is responsible for all human resources management affairs.
Job Titles:
- Personal Assistant to the Board
Martijn Brouwer has completed various studies and has a background in Financial Services Management and Accounting & Control in the Netherlands. Martijn started his career in the banking industry, after which he started within the Accounting sector working for various renowned companies such as VWG Nijhof Accountants and Tax Advisors, Mazars and Boschland Accountants. He has more than 15 years of experience in business, accumulated in different industries amongst others such as financial services and healthcare. He has over time developed many skills by education and experience in mergers & acquisitions, finance and investments. Within Tandheelkunde Groep Nederland, Martijn Brouwer is responsible for all annual reports of all group companies, including financial control and corporate finance advisory.
Job Titles:
- Member of the Advisory Board
Yong Go has a family background in healthcare and is currently finalizing his studies in dentistry at the joint ACTA (Academisch Centrum Tandheelkunde Amsterdam) Faculty of UvA (Universiteit van Amsterdam) and VU (Vrije Universiteit Amsterdam), in the Netherlands. With his deep knowledge of the dental healthcare market and his international business orientation, Yong Go is a valuable Member of the Advisory Board of Tandheelkunde Groep Nederland.