Rudi Walter Weinreich, Executive Chairman, born in 1946 in Austria, was sole executive director of Holders Technology until 1987. He has been responsible for all aspects of the business since he started it in 1972, particularly the assessment of new products and negotiating distributorship agreements.

Victoria Margaret Blaisdell BSc, born in 1972, joined the Group in 2004.  In 2007, Victoria joined the Board as Business Development Director and led the diversification efforts into the LED sector.  In 2011, Victoria was made Group Managing Director. She previously worked in the IT industry and has also worked in several countries as a Senior Consultant for one of the largest global IT consultancies.

Paul Kevin Ian Geraghty BSc (Mathematics), FCA, born in 1960, joined the Group in 2011 as Group Finance Director and Company Secretary. He previously held senior financial roles in international engineering companies, including Finance Director at Elektron Components Limited (components manufacturer) and Group Finance Director at Protec plc (design and supply of security and monitoring systems).

David Arthur Mahony BA (Economics), MSc, born in 1944, is the Senior Non-executive Director, appointed in 1988. He is also a Director of Tower Mint Limited.  David spent thirty-five years with Hambros Bank in Corporate Finance and as an Industrial Advisor, during which time he was Chairman of various PLC, Aim and Private companies.



Kelvin Scott joined Holders in March 2019 as Finance Manager and was appointed General Manager in October 2019.  Kelvin is a Chartered Accountant with many years’ commercial experience including several years in the PCB industry.



Mat Hanson joined Holders in 2019 as UK LED Sales Manager and shortly afterwards was appointed UK LED Sales Director.  For 6 years Mat was Senior Accounts Manager for Harvard Technology, the specialist wireless lighting controls company.



Frank van der Hulst joined Holders Technology in 1993 and started his career as Sales Manager for the Benelux region. Over the last 20 years, he has developed significant commercial B2B experience.  Frank has been responsible for the German LED division since its commencement and he is now joint Managing Director of Holders Technology GmbH.



Gerhard Rieser is the joint Managing director of Holders Technology Austria, which was founded in June 2020. His cooperation with Holders Technology started in 2015 as an independent sales agent for Holders Technology Germany. For 25 years, Gerhard has held sales and marketing executive roles within the lighting industry including roles at Tridonic Group and Xicato Inc.



Justin Groot is the joint Managing Director of Holders Technology Data Analytics, which was founded in October 2020. He started his career at KPMG, in the Big Data & Analytics section, as a consultant and business development manager. For the past three years he has been involved in developing various data driven activities in the lighting industry. Justin holds a Masters Degree in Complex Systems Engineering