Posidonia is one of the most established and influential international shipping exhibitions, bringing together shipowners, shipbuilders, equipment manufacturers, technology providers, classification societies, financiers and maritime service companies from across the global shipping industry. The event combines a major trade exhibition with conferences, seminars and high-level networking across the maritime value chain.

The 2026 edition will take place from 1 to 5 June 2026 at the Metropolitan Expo, near Athens International Airport, positioning Greece once again at the centre of global maritime dialogue.

Posidonia is organised by Posidonia Exhibitions S.A., under the auspices of the Hellenic Ministry of Maritime Affairs and Insular Policy and with strong support from the Greek and international shipping community.

ZESTAs Secretary General Madadh MacLaine will be attending, engaging with shipowners, technology providers and system integrators operating across the maritime value chain to advance deployment pathways for Absolute Zero emissions shipping.