Wilh. Wilhelmsen Holding ASA (WWH) is a global maritime industry group, headquartered in Lysaker, Norway. The group employs more than 21,000 people and has operations in 75 nations. The Wilhelmsen group operates the largest maritime network in the world, with over 2200 locations worldwide.

The WW group was founded on 1 October 1861 in Tønsberg. The company's first vessel was the barque Mathilde in 1886. Halfdan Wilhelmsen was forward thinking and realised that steamboats were the future, therefore in 1887 he bought the vessel Talabot. It was only after they bought Talabot that the company started making profits. 

Thence, all their ships have been named, started with the letter "T", often leading to the same name given repeatedly to different ships over time. For example, there have been at least four ships named Talabot ranging from tankers to ro-ro vessels.

Since 1978 the main owners have been the siblings Cecilie Paus and Helen Juell, and their now deceased brothers Wilhelm Wilhelmsen and Finn Wilhelmsen. Their children, the fifth generation of the Wilhelmsen family, are Thomas Wilhelmsen, Olympia Paus, Pontine Paus, Cathrine Løvenskiold Wilhelmsen, Hedvig Juell, Maren Juell, Hannah Wilhelmsen, Monica Wilhelmsen and Julie Wilhelmsen.

Wilhelmsen's maritime service segment includes ships service, ship management, insurance services and other maritime services activities. The group offers services like agencies in many ports. They are one of the world's largest providers of third-party ship management services.

The WW group provides full technical management, crewing and related services for all major vessel types, this also includes 50% of NorSea Wind. Furthermore, they sell marine products, marine chemicals, maritime logistics and ships agency. Additionally the group provides marine and non-marine insurance for internal and external clients.

According to en.wikipedia