We are Sea-Alliance Group, an international maritime business specializing in yacht brokerage and charter since 2008. Headquartered in Gibraltar, with a new branch in Greece and representatives throughout the Mediterranean, the group operates a wide range of global services. In addition to yacht brokerage and charter, the group provides project management of new builds, yacht management, charter management, marinas management and more.


Sea Alliance Group expanded its services in 2023 into Greece with the launch of sister company Sea-Alliance Group IKE, aiming to cater to the growing demand for cruising in Greece. The new office, located in Palaio Faliro in South Athens, will offer a range of services including yacht charter management, sales, brokerage, and yacht management. The company plans to leverage its expertise in marina management for potential involvement in public tenders in Greece.


The Greece team is led by experienced professionals including Office Manager Asimina Papadimitriou, an ex-captain and seasoned maritime industry professional. She is supported by Katerina Siouti, well-known in the local market within the areas of charter management and yacht management, and Evita Kargioti, a highly experienced superyacht agent with experience in crewed yacht charters and extensive knowledge in all aspects of concierge and provisioning. Further recruitment is ongoing to enhance the team.


Asi + Kat + Evi

Evita Kargioti, Asimina Papadimitriou, and Katerina Siouti – the Sea Alliance Group IKE team in Greece.



Roy Klajman, Uri Idan and Itay Singer established the Sea Alliance Group in Gibraltar after gaining vast experience in the yachting industry as far back as the the late 90’s. Their combined experience allowed the Group to quickly create an extremely versatile combination of services within the yachting industry.


The Founders1

Itay Singer, Roy Klajman and Uri Idan – founders of the Sea Alliance Group.