Dagmar Mühlenfeld is a German businessperson who has been at the helm of 6 different companies. Presently, she holds the position of Chairman-Supervisory Board of Mülheim & Business GmbH, Chairman-Supervisory Board of Ruhrbania Projektentwicklungsgesellschaft mbH and Chairman-Supervisory Board of Flughafen Essen Mülheim GmbH.

She is also on the board of RWE AG, Sparkasse Muelheim an der Ruhr AöR and Beteiligungsholding Mülheim An der Ruhr GmbH.

In the past Ms. Mühlenfeld held the position of Chairman-Supervisory Board for Mülheimer Wohnungsbau eG, Chairman-Supervisory Board at medl GmbH and Chairman-Supervisory Board at RW Holding AG.