Sotiris Stamatiou has served as Group Human Resources Director at the Onassis Foundation Group of Companies since July 2016. Since December 2016, Sotiris has also been President of the Board of the Greek People Management Association (GPMA) and recently a member of the Board of Directors of the European Association of People Management (EAPM). Sotiris is recognized for robust stakeholder management skills across diverse industries, including FMCG, energy, retail, insurance, shipping, investments, culture, and public benefit organizations.

Previously, Sotiris Stamatiou held several senior HR roles, including HR Director for EKO & BP and International Operations at Hellenic Petroleum Group of Companies, HR Manager at Interamerican, Retail Med Cluster HR Manager at Shell Hellas, and Recruiting & Employee Services Manager at Procter & Gamble. Sotiris Stamatiou has international cluster experience at Helpe & Shell, having worked for Shell in Istanbul and started their career at EIM in the Netherlands.

Sotiris holds a degree in Economics from the Athens University of Economics & Business, an M.Sc. in Communication, and has completed executive programs at ALBA, IMD, and Ashridge University.