Wilhelmsen Holding ASA (WWH)[1] is a Norwegian multinational maritime group, headquartered in Lysaker, Norway.

Halfdan Wilhelmsen was forward thinking and realised that steamboats were the future, therefore in 1887 he bought the vessel Talabot.

A turning point in the expansion of the Roll-on/roll-off operations was the full acquisition in November 1995 of NAL (Norwegian America Line) and its 7 Car Carriers.

At that time, NAL was facing a cargo volume downturn and an overall profits reduction, that made register lower than expected financial results in 1994-1995.

[7] In September 1989, Partnair Flight 394 crashed en route to the christening ceremony for a new ship in Hamburg.

This is aided by the fact that their Ro-ro vessels have large ramps that can support up to 420 tonnes cargo weight at a time.

Together with its partners (EUKOR and Wallenius Lines), the group controls some 160 car and roll-on/roll-off carriers operating in a global network of trades.

This last, corresponding to the former Roll-on/roll-off division of Hyundai Merchant Marine, was jointly acquired for an 80% by Wilhelmsen and Wallenius Line in November 2002, once the European Commission officially cleared the purchase and consequent re-branding.

[11] The WW group provides full technical management, crewing and related services for all major vessel types, this also includes 50% of NorSea Wind.

In 2018 WGS provided host nation support to both Allied and Norwegian forces during the NATO exercise "Trident Juncture 18".

This technological innovation eased the process of ordering before and during as well as billing after the exercise to both participating and hosting nations.

During the early hours of 14 December 2002, MV Tricolor (ex Nosac Sun, built in 1987) was sailing from Zeebrugge, Belgium to Southampton, U.K., with a load of nearly 2871 brand new BMW, Volvo and SAAB automobiles.

The vessels faced serious delays, and were asked to leave Australia territorial waters after a long wait at anchorage,[13] being finally denied to enter any port until new fumigation performed on all cargo.