The Irish Institute of Master Mariners, IIMM is a non-political organisation that exists to promote safe, efficient and professional conduct in maritime operations Worldwide.


The Institute membership consists of seafarers who are professionally qualified ship navigation officers up to and including the rank of Master Mariner, the globally recognised professional qualification required to command large seagoing vessels in international waters.

In the course of its work to support seafaring professionals and promote best practice, the Institute consults with Irish Government Departments and ministers and liaises with professional maritime interest organisations and individuals across the World. The Institute is a member of a number of Professional International Maritime Organisations including the International Federation of Shipmasters’ Associations IFSMA and the Confederation of European Ship Masters Associations CESMA.

If you are a professional navigation officer living in Ireland and working at sea, are working ashore in Ireland or you are a cadet who is training in Ireland, we encourage you to join the IIMM. We are your professional information and support network. By joining the Irish Institute of Master Mariners you can keep fully up to date with what is happening in your profession and discuss matters of common professional interest with your peer community – those who really do understand

The best way to keep up to date with latest IIMM news, developments, discussions and events is to follow us on social media. Come and join the conversation! We’re on several platforms; Facebook, LinkedIn, Twitter and Instagram.