Otto Marine Limited, through its subsidiaries, operates as an offshore marine company worldwide. The company operates through Shipyard, Shipping and Chartering, and Subsea segments. It is involved in the construction, servicing, and conversion of a range of small, medium, and large offshore and other support vessels, such as anchor handling tug supply vessels, platform supply vessels, utility vessels, and maintenance vessels, as well as accommodation work barges, cargo barges, and tow tugs. The company also engages in the manning, owning, and chartering of offshore and inshore support vessels, as well as vessels for use in subsea; procurement and sale of vessels and goods; and provision of ship management and crewing, treasury management, ship conversion and fabrication, and land and equipment rental services. It operates a fleet of 35 owned vessels; 8 chartered in/manned vessels; and 5 vessels held with strategic partners. The company serves national oil companies, international oil majors, and other upstream players operating in the offshore oil and gas markets. Otto Marine Limited was founded in 1979 and is headquartered in Singapore.