Stefan Szyszkowitz is a businessperson who has been the head of 8 different companies and presently is Chairman at EVN Macedonia AD, Chairman-Supervisory Board for Burgenland Holding AG, Chairman-Supervisory Board of EVN Pensionskasse AG, Chairman-Supervisory Board for RAG-Beteiligungs-Aktiengesellschaft, Chairman-Supervisory Board for Evn Bulgaria Toplofikatsia EAD, Chairman-Supervisory Board of EVN Bulgaria Elektrosnabdiavane AD and Chief Executive Officer for EVN AG. Mr. Szyszkowitz is also on the board of 7 other companies.

In his past career he held the position of Chairman of Rohöl-Aufsuchungs AG.