Piotr Wielowieyski is a seasoned professional with a wealth of expertise spanning the fuel and energy sector, as well as economic consulting. He was already associated with the ORLEN Group in 2008–2016, serving on the Unipetrol Management Board and ORLEN Supervisory Board. Prior to this, he held influential roles as President and Member of the Management Boards of Zachodni Fundusz Inwestycyjny and Foksal NFI, both listed on the Warsaw Stock Exchange. He also lent his expertise to various companies as Member of the Supervisory Boards of ANWIL, BOP, ZM Ropczyce, and Libella, among others.

In the 1990s, his professional journey included work at the representative office of the International Finance Corporation (World Bank), where he contributed to projects in Poland.

Piotr Wielowieyski is a graduate of the University of Warsaw, having earned his degree from the Faculty of Economic Sciences. He passed the state exam for candidates aspiring to serve on the supervisory boards of state-owned enterprises. Additionally, he completed studies for investment advisors and securities analysts at Centrum Prywatyzacji BiF.