Petra Nagelmann has been an authorized signatory of energenta recycling solutions gmbh since 2021, having already assumed responsibility for the company in 2015. Prior to that, she served as Head of Sales at energenta ersatzbrennstoffe GmbH from 2008, where she was responsible for developing waste disposal and recycling concepts. She began her professional career after completing her studies in Oecotrophology (Dipl. Oec. troph. FH) with a position in sales at TK-Umweltdienste in Bonn, followed by a role at the Waste Management Department of the City of Cologne in municipal waste consulting.

Since the founding of energenta AG in 2022, she has also been primarily responsible for the sales activities of the group and its subsidiaries.