Thomas Arnoldner was born in 1977. He studied business management at the Vienna University of Economics and Business and the Stockholm School of Economics. His professional career started in 2003 at Alcatel Austria. After several management positions in the company, he took over as CEO of Alcatel-Lucent Austria in 2013. After Nokia’s acquisition, he developed the post-integration strategy for the combined company. In 2017/18, he joined the executive board of T-Systems Austria. From 2018 to 2023, he was CEO of the A1 Group, and as of 09/2023, he assumed the position of Deputy CEO.