Sea1 Offshore 

Sea1 Offshore Inc., together with its subsidiaries, owns and operates offshore support vessels for the offshore energy service industry. The company operates through Subsea Vessels; Anchor-Handling Tug Supply (AHTS) Vessels; Platform Supply Vessels (PSVs); Fast Crew & Oil Spill Recovery Vessels; and Other segments. It provides offshore vessel activities, such as anchor handling and towing, platform supply, well intervention services, subsea operations, walk-to-work, and trenching operations for windfarms. The company has a fleet of 17 vessels, which includes two offshore subsea construction vessels, two well-intervention vessels, one scientific core-drilling vessel, six anchor handling tug supply vessels, two platform supply vessels, and four fast crew and oil spill recovery vessels. It operates in the North Sea, Brazil, Australia, Canada, Southeast Asia, South America and West Africa. The company was formerly known as Siem Offshore Inc. and changed its name to Sea1 Offshore Inc. in May 2024. Sea1 Offshore Inc. was founded in 2005 and is headquartered in Kristiansand, Norway.