Andreas Zontanos, Partner, Argonavis Andreas Zontanos holds a Naval Architect and Marine Engineer diploma from NTUA, and a M.Sc. Degree in Precision Engineering Metrology by Cranfield University, Cranfield, UK. Before establishing ARGO NAVIS, he has worked in consulting firms as junior and later senior consultant, in two (2) Greek ship management companies as superintendent engineer, led on-site newbuilding supervision teams in two (2) bulk carrier newbuilding projects in Croatia and China for Greek ship-owners and worked as an independent engineer conducting surveys and supervising conversions and repair works.