Currently, Michael Stollarz is Chairman-Management Board at Deutscher Sparkassen Verlag GmbH. Dr. Stollarz is also on the board of Worldline SA, Bad Homburger Inkasso GmbH, Pluscard Service Gesellschaft für Kreditkarten Processing mbH and Sparkassenstiftung für Internationale Kooperation Ev and Manager at Otto Schmidt Beteiligungsgesellschaft mbH.

In the past Dr. Stollarz held the position of Manager of Flick Gocke Schaumburg GmbH, Partner at Executive Interim Partners GmbH, Co-Managing Director at HANDELSBLATT MEDIA GROUP GmbH & Co. KG, Co-Managing Director at SilverTours GmbH, Co-Managing Director at Handelsblatt GmbH and Manager & Director-Digital Strategy at Burda International GmbH.