Maritime Union of Australia members are the foundation of the union, and keep the union strong. The Maritime Union of Australia is known around the country as having the strongest and most active rank and file members of any trade union. The MUA is proud of the high union density in the maritime industries, and encourages all maritime works to join the union to benefit from the solidarity and collectivism that unionism brings. In addition, the MUA is recognised internationally as one of the world's top unions, providing unrivalled job security, pay and conditions.