Peter Sauber
At this stage, Kaiser was a co-owner of the Sauber Formula One team (along with founder and team principal Peter Sauber and Red Bull owner Dietrich Mateschitz), and Kaltenborn was employed to take charge of the team's corporate and legal affairs. By 2000, Kaiser had sold his shares but Kaltenborn remained with the team as the head of its legal department. From 2001, she has been a member of its management board, and in early 2010, following the team's return to independent status following the withdrawal of former partner BMW, she was appointed CEO of Sauber Motorsport AG. She is also involved in the FIA's Commission for Women and Motorsport, under Michèle Mouton. On 16 May 2012, Peter Sauber transferred a third of the Sauber team to Kaltenborn, making her a part owner. In October, he retired from front-line management of the team, handing her the role of team principal.