Siem Offshore Inc

Sea1 Offshore Inc., in collaboration with its subsidiaries, specializes in the ownership and operation of support vessels tailored for the offshore energy service industry. The company structures its operations around various vessel categories, including Subsea Vessels, Anchor-Handling Tug Supply (AHTS) Vessels, Platform Supply Vessels (PSVs), and Fast Crew & Oil Spill Recovery Vessels, among other segments. It delivers a comprehensive range of offshore marine services such as anchor handling, towing, platform supply, well intervention, subsea operations, walk-to-work solutions, and trenching for wind farm projects. Its operational reach spans significant global regions, including the North Sea, Brazil, Australia, Canada, Southeast Asia, South America, and West Africa. Founded in 2005 and headquartered in Kristiansand, Norway, the company adopted its current name, Sea1 Offshore Inc., in May 2024, having previously operated as Siem Offshore Inc.