Knut Erik Petterson

Konstel AS provides electrical wiring and equipment installation services. It also owns, manages, and develops a chain of electrical companies. The company was founded on June 4, 2014 and is headquartered in Lierstranda, Norway.

Provstrømspesialisten AS leases machineries and equipment. The company was founded on November16, 2011 and is headquartered in Oslo, Norway.

AS Elektro Gruppen provides electric services. It offers installation and maintenance of electric devices, as well as annual inspections of fire and emergency alarm systems. The company was founded on January 20, 2006 and is headquartered in Oslo, Norway.

Part of Nimlas Group AB, Kampen Installasjon AS operates as a Norwegian electrical installation company. The company is based in Oslo, Norway. The company was founded in 1999 by Bjørn Michalsen. Bjørn Michalsen has been the CEO since 1999. Kampen Installasjon was acquired by Konstel AS, part of Nimlas Group AB from February 01, 2023 on May 12, 2022.

M. Carlsen & Sønn Jevnaker AS is an electrical, telecommunications, and computer installation services company based in Jevnaker, NO. M. Carlsen & Sønn Jevnaker AS provides installation services for electrical, telecommunications, and computer systems. The Norwegian company was founded in 2009, and the CEO is Sigurd Haug Narvestad.