The Knutsen group is in general organized with Single Purpose Ship-owning Companies. To ensure safe- and effective operation of the vessels, Management and Operation are organized through Knutsen OAS Management and KNOT Management.

Trygve Seglem controls the Knutsen group through TS Shipping Invest AS. The shuttle tanker fleet (KNOT) is controlled 50/50 by Trygve Seglem through TS Shipping Invest and NYK (Nippon Yusen Kaisha). The LNG fleet is controlled by Seglem through TS Shipping Invest AS and various investors such as NYK and Klaveness Marine. The product tankers is owned and controlled by Trygve Seglem through TS Shipping Invest.

The main office is located in Haugesund, Norway. However, due to worldwide operation, Knutsen has established offices and branch offices around the world. With particular relevance for the LNG business and the commercial operation and crewing of LNG vessels, a separate company is established within Spain; Knutsen OAS España, S.A. The office is located in Madrid.

A crewing company has been established in Manila, Knutsen Philippines Inc, with the sole purpose of providing Knutsen Group with Filipino officers and ratings and other supporting services.

For the shuttle tanker operations in Brazil, KNOT has a branch office in Rio de Janeiro, KNOT Management do Brasil.

With particular relevance for the Danish flag registered shuttle tankers, an office is established in Copenhagen, Denmark, KNOT Management Denmark AS.

The Knutsen Group has in addition other offices in Aberdeen, Scotland, Knutsen OAS(UK) Ltd. An office in Riga Latvia, SIA Knutsen Eastern Europe, a joint venture in Newfoundland Canada with J.J. Ugland, Canship Ugland Ltd. and in Ghana Knutsen Shuttle Tankers Ghana Ltd.