During the 1920s, it began production of shoes and flour; during the 1930s, it added chocolate and light bulbs as well as Cooperative Insurance (Samvirke Forsikring).

In the 1950s, its Tormolux division produced washing machines and mopeds; in the 1960s, it began use of the S brand and opened the warehouse chain Domus.

was established as a separate chain in 1975, and the next year NKL purchased Røra Fabrikker, an Inderøy-based producer of jams and juices.

[citation needed] The local cooperatives operate the association's stores and are led by boards elected by the membership.

It has stakes in a potato-packing plant in Grinder, Takecargo AS in Lysaker, and John Weydahl AS and the Grocery Supplier's Environmental Forum in Oslo.

Its wholly or partly owned subsidiaries include many properties in Moss, Kristiansund, Surnadalsøra, and Gran, as well as others in Oslo, Bergen, Hammerfest, Tromsø, Lillehammer, and many smaller towns.