Group Executive Committee


Chief Executive Officer

Michael Allison

was appointed CEO of VAT Group in March 2018. Previously he was Head of the Semiconductor Division of Edwards/Atlas Copco. Prior to that Mr. Allison was Managing Director and Executive Vices President of Edwards’ global sales and service operations. He also worked for KLA Tencor for almost 20 years in a variety of senior management roles. He is also a Member of the Board of Directors of SEMI International. He holds a degree I Electrical and Electronic Engineering from the University of Glasgow, Scotland.

Fabian Chiozza

Chief Financial Officer

Fabian Chiozza

was named CFO of VAT Group in 2021, effective as of the beginning of April. Mr. Chiozza joined VAT from Autoneum Group, the global leader in acoustic and thermal management for the automotive industry, where he was the divisional CFO for the Business Group South America, Middle East and Africa. Before that, Mr. Chiozza held a variety of senior finance positions at Rieter Group, including Group Controller, and established a successful track record in corporate development and mergers and acquisitions. He holds a Master’s degree in Accounting and Finance from the University of St. Gallen (HSG), Switzerland.

Dr. Thomas Berden

Chief Operating Officer

Thomas Berden

was appointed COO of VAT Group in October 2020. Previously, he was Head of Global Manufacturing for the building and construction products company Hilti AG in Kaufering, Germany. He has also held management positions at BSH Bosch Siemens Hausgeräte and Siemens AG, Germany. Thomas Berden holds a Ph.D. in mechanical engineering from the RWTH Aachen University, Germany, and a degree in business economics from the University of Hagen, Germany.

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