Seafarers International Union

The most important sailors’ union in the country, the Seafarers’ International Union of Canada has been serving unlicensed seafarers since 1938. Better known as the SIU, we represent the majority of unlicensed sailors working aboard vessels on the Great Lakes, the St. Lawrence River, and on the East and the West Coasts. In addition to vessels operated in Canadian waters, SIU members also have the opportunity to work aboard vessels delivering cargoes internationally.