Marine Industries Organization (MIO, ), formerly known as Marine Industries Group (MIG), is a defense industry complex subordinate to the Iranian defence ministry. It is the major producer of equipment for both naval forces of Iran, the Islamic Republic of Iran Navy and the Navy of the Islamic Revolutionary Guard Corps.
MIO was established in 1986.
As of 2023, MIO is placed under sanctions by Australia, Canada, Japan, Norway, South Korea, the US, the UK and the EU.
Subordinates of the MIO are:
Subsidiaries of the MIO manufacture a wide range of maritime equipment, including submarines, high-speed boats, as well as principal surface combatants. Some of the products made by the MIO are: