John-Erik Karlsen

GK Gruppen AS engages in the provision of technical installations. It operates in the following business areas: ventilation, building automation, air conditioning, plumbing, electrical, water based energy systems, and energy. The firm also offers consultancy for system integration, sprinklers, heating, and energy conservation. The company was founded by Kristian Nordberg in 1964 and is headquartered in Oslo, Norway.

GK Gruppen AS engages in the provision of technical installations. It operates in the following business areas: ventilation, building automation, air conditioning, plumbing, electrical, water based energy systems, and energy. The firm also offers consultancy for system integration, sprinklers, heating, and energy conservation. The company was founded by Kristian Nordberg in 1964 and is headquartered in Oslo, Norway.

GK Gruppen AS engages in the provision of technical installations. It operates in the following business areas: ventilation, building automation, air conditioning, plumbing, electrical, water based energy systems, and energy. The firm also offers consultancy for system integration, sprinklers, heating, and energy conservation. The company was founded by Kristian Nordberg in 1964 and is headquartered in Oslo, Norway.

GK Gruppen AS engages in the provision of technical installations. It operates in the following business areas: ventilation, building automation, air conditioning, plumbing, electrical, water based energy systems, and energy. The firm also offers consultancy for system integration, sprinklers, heating, and energy conservation. The company was founded by Kristian Nordberg in 1964 and is headquartered in Oslo, Norway.