Self Storage Group ASA engages in the rental of self-storage units to private individuals and businesses in Norway, Sweden, and Denmark. The company operates through OK Minilager, City Self-Storage, and Property segments. It operates climate controlled storage units and container based storage units.

The company also retails storage ancillary goods, such as boxes, tapes, and other moving materials; distributes insurance products; and invests in, owns, and develops real estate properties. As of April 4, 2022, it operated 128 facilities with a total lettable area of 171,800 square meters in Scandinavia. Self Storage Group ASA was founded in 1993 and is headquartered in Oslo, Norway.