Wilh. Wilhelmsen Holding ASA provides maritime products and services in Europe, the Americas, Asia, Africa, and Oceania. It operates in Maritime Services and Supply Services segments. The Maritime Services segment offers marine products, ship agency services, and logistics to the merchant fleet, as well as ship management services, including manning for various vessel types. The Supply…More Services segment engages in the operation of supply bases for the offshore industry; development and operation of real estate properties on and off the supply bases; and maintenance of rigs and handling of logistics related to international pipeline projects and windmill parks. The company's marine products include Unitor chemicals and equipment to clean vessels; Unitor fuel treatment chemicals; Unitor oil spill kits and other damage control solutions; Unitor cylinders; Timm ropes; Unitor equipment for the maintenance and performance vessels; and Nalfleet water treatment products to treat and protect on board systems, as well as Unicool refrigerants. It also provides marine and non-marine insurance services; and maritime training solutions. The company was founded in 1861 and is headquartered in Lysaker, Norway. Wilh. Wilhelmsen Holding ASA is a subsidiary of Tallyman AS.