Management team

Guido van Tartwijk

Chief Executive Officer

As Tridonic’s chief executive officer, Dr. Guido van Tartwijk is responsible for Tridonic’s day-to-day-operations as well as leading the company’s long-term strategy. He has more than 20 years of international experience in the semiconductor/LED electronics and lighting industry. Prior to joining Tridonic in November 2016, he was CEO of the LED Electronics section at Philips Lighting and held various senior executive roles at Philips Lighting in China and the Netherlands. Before moving to Philips Lighting he worked in several highly innovative start-up companies in both Silicon Valley and in Europe. He has a strong track record in leading and growing innovative teams and businesses across many geographies, and is deeply committed to driving sustainable long-term growth at Tridonic. Guido van Tartwijk holds an MSc in Physics from Eindhoven University of Technology and a PhD in Physics from the Vrije Universiteit, Amsterdam.

Jörg Kessler

Senior Vice President Global Sales & Marketing

Jörg Kessler can look back on more than 25 years of relevant international experience in sales and business management. He began his career with Siemens immediately after completing his studies in laser technology at the Friedrich Schiller University in Jena. Among other things, he worked for Siemens in Singapore from 2005 to 2007 and strengthened the sales and services sector there as Senior Vice President. He then held various sales positions at Nokia Siemens Networks and Siemens. From October 2014 to 2017 he was the CEO for the LPD (Low Pressure Discharge Lamps) division at Osram/LEDvance. Jörg Kessler joined Tridonic in November 2017 and is responsible for defining the international sales and go-to-market strategy, working closely with customers and partners around the globe.

Miro Ardan

SVP Global Purchasing

Miro Ardan joined Tridonic as Representative Head of Purchasing in 1994. From 1994 to 2014, he held various leading positions in Tridonic’s purchasing department, including Head of Operative Supply Management, Global Strategic Purchasing Manager and Global Purchasing Director. In 2014, he assumed the position of Senior Vice President Global Purchasing for the entire Zumtobel Group, with responsibility for all procurement processes. He retains this position of responsibility, driving all purchasing activities at Tridonic and leveraging his in-depth know-how to achieve a consistent purchasing strategy across the company.

Alexander Jankovsky

Senior Director Global Supply Chain and Operations

Alexander Jankovsky has more than 20 years of experience in the field of IT and supply chain management. He joined the Tridonic management team in 2013 after having held various positions at Tridonic since 1997. First joining as an SAP Process Consultant, he moved on to Supply Chain Manager and leading positions in the global supply chain management team. In 2012 he became Director Global Supply Chain Planning & Logistics. He is responsible for Tridonic’s Global Supply Chain and also serves as a spokesperson for Tridonic Operations. Alexander Jankovsky holds a degree in Information Technology & Business Sciences from the University of Liechtenstein.

Thomas Oelz

Vice President Product Management

Thomas Oelz joined the management team in May 2016 after having held various positions at Tridonic since March 2006. He graduated in electronics at the university of applied sciences NTB in Switzerland in 2005 and worked in Research & Development for seven years. In the following three years he created the product strategy and segment roadmap of the Segment Retail & Hospitality. In his new role he is responsible for the overall global product strategy and worldwide business development.

Steffen Riemer

Vice President R&D

With more than 10 years of R&D experience in the lighting industry, Steffen Riemer joined the management team in May 2016. Prior to this appointment he was Managing Director of the Tridonic production site in Jennersdorf and Head of R&D Light Sources. In his new role as VP R&D, Steffen Riemer will be in charge of R&D worldwide. He studied Applied Geosciences (with focus on mineralogy) at the Austrian technical university “Montanuniversität” located in Leoben and also holds an MBA in Generic Management.

Walter Michelberger

Senior Director Quality & Business Excellence

Walter Michelberger has been responsible for the global quality strategy and quality-related processes at Tridonic since November 2015. Between 2002 and 2015 he held various positions at Zumtobel Group for different brands. His responsibilities ranged from quality management, technology strategy, project management in global operations to business excellence. After finishing his university studies in Chemistry and earning his PhD in organic chemistry at the University of Ulm, he worked at CRS Lichtformtechnik GmbH for 8 years until joining the Zumtobel Group.