Dr med. habil. Dr jur. Warther is a licensed personality and communication trainer, member of two student associations, KDStV Sauerlandia Münster and K.D.St.V. Borusso-Saxonia in Berlin, and is also a voluntary member of the examination committee of the Kassel-Marburg Chamber of Commerce and Industry for insurance brokers/consultants.
For the last five years, he has been a member of an administrative, management or supervisory board.
Dr Dr Warther was appointed to the Supervisory Board of energenta AG for a term of five years on 22 February 2022.