Vallianz Holdings Limited, an investment holding company, provides offshore support vessels and marine solutions to the oil and gas industry in in the Middle East, the Asia Pacific, and Gulf of Mexico. The company operates through Vessel chartering and management, Shipyard and newbuild management services, and Investment holding segments. It offers offshore marine services, including vessel ownership and chartering; shipyard and vessel management services, including in-house fabrication and engineering services, such as shipbuilding, fabrication works, and ship repairs, as well as consultancy and vessel project management; vessel docking, repairs, and maintenance works; heavy transport vessels; and renewable and sustainable energy services, as well as provide corporate services. The company also owns and operates shipyards in Indonesia; and offshore support vessels, including anchor handling, platform supply vessels, offshore floating storage and supply vessels, submersible launch barges, maintenance and accommodation vessels, utility support vessels, flat-top cargo barges, accommodation work barges, towing tugs, utility vessels, lift boats, and crew boats.