This industry comprises establishments primarily engaged in operating port and harbour facilities and services. Establishments engaged in the operation of lighthouses are included.

This industry comprises establishments primarily engaged in providing stevedoring and other marine cargo handling services.

This industry comprises establishments primarily engaged in providing navigational services to shipping. Important navigational services are pilotage, moorage and vessel traffic services. Establishments engaged in marine salvage are included.

This industry comprises establishments, not classified to any other industry, primarily engaged in providing water transportation services. Establishments engaged in ship repair and maintenance (not done in a shipyard) and lighter operations are included.