Gulf Marine Services PLC is a United Kingdom-based operator of self-propelled and self-elevating support vessels (SESVs). The Company and its subsidiaries are investing in, establishing and managing commercial and industrial projects, as well as chartering and operating a fleet of vessels. The Company constructs and maintains its vessels in Abu Dhabi. The vessels are capable of operations in the Middle East, South East Asia, West Africa and Europe. It operates through three segments: Small Class vessels, which include the Naashi, Kamikaze, Kikuyu, Kawawa, Kudeta, Keloa, Kinoa and Pepper vessels; Mid-Size Class vessels, which include the Shamal and Scirocco vessels; Large Class vessels, which include the Endeavour, Endurance and Enterprise vessels, and Other vessels, which include over two legacy non-SESV vessels and an accommodation barge (Khawla), which do not form part of the Small, Mid-Size or Large Class vessels segments.