
Mari Kostelletou
Executive Management Assistant
Mari has over 30 years of professional experience, specializing in executive and administrative support for senior management and boards of directors.
She has held executive assistant roles at companies including ATTICA Department Stores S.A., POLITIKOS SA, and ELMEC SPORT S.A., coordinating administrative processes, managing executive schedules, and facilitating communication between senior executives, internal teams, and external partners. She also has experience in the insurance sector, where she held managerial positions.
She studied Maritime Studies at the University of Piraeus, specializing in Marine Insurance and Transport Insurance.