Wilh. Wilhelmsen Holding ASA provides maritime products and services worldwide. It operates through Maritime Services, New Energy, and Strategic Holdings and Investments segments. The company offers pumps, accessories, and spares; cleaning, water treatment, and fuel oil chemicals, as well as test kits, reagents, and marine chemicals equipment; air tools equipment, accessories, consumables, and spares; accessories, consumables, and spares for electric tools; mobile and stationary high-pressure cleaners and systems, vacuum cleaning equipment, circulation cleaning unit, cargo hold cleaning, ultrasonic part and filter cleaners, and workwear/PPE, as well as application, dilution, and mixing equipment; and gases, spangases, regulators, refrigerants, offshore racks, and gas distribution systems. It also provides refrigeration equipment tools, package equipment, secondary refrigerants and lubricants, and system equipment and spares; arc welding equipment, consumables, and storing; gas welding, brazing, and cutting; cold repair systems; oil spill equipment; mooring ropes, rope stretchers, accessories, and rope protection; mineral grease and oil, synthetic oil, and EAL grease and oil; and emission control chemicals and test kits. It also provides ship agency services and logistics to the merchant fleet, as well as ship management services, including manning for various vessels. In addition, the company 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. Further, it offers technical and crew management services, and digital solutions; marine and non-marine insurance services; and training, supply chain, finance, HR, and IT services. The company was founded in 1861 and is headquartered in Lysaker, Norway. Wilh. Wilhelmsen Holding ASA is a subsidiary of Tallyman AS.