Today the company manages the Olsen family's interests in a variety of sectors including logistics, energy and consumer goods.

During their leadership, the company expanded, even entering the aviation business with its own airline Fred.

During World War II, the company's ships were in Allied service, though 28 were lost – about half the fleet.

Olsen entered the offshore business, with Dolphin drilling rigs and part of Saga Petroleum.

Olsen also had a major share in the construction and engineering company Aker and currently owns Timex Corporation.

In 1973, it sold its tanking interests but reentered the industry again in 1986, creating the publicly listed company First Olsen Tankers in 1993 that was repurchased in 1999.

Olsen sold its part of Comarit and is no longer a stockholder of the Moroccan passenger carrier.