Lex Hartman, born in 1956 in Rotterdam, took the post as CEO of ubitricity Gesellschaft für verteilte Energiesysteme mbH in May 2019. Prior to this, he had worked for the Dutch-German transmission system operator TenneT for 20 years. At TenneT, the former lawyer was a member of the Executive Board of TenneT Holding BV from 2008 on. In 2010 he became the Managing Director of the German subsidiary TenneT TSO GmbH. To this day, he holds supervisory board positions in various companies. In addition to his professional activities, he gives keynotes and motivational lectures for executives. His personal interests range from sports to technology with a focus on disruptive technological developments and their impact on society.