Karl Johan Grøttum is a private shareholder. Karl Johan Grøttum holds stakes in 2 companies, and roles in several others.

Companies Karl Johan Grøttum owns

Company	Stake
QUADRATECH AS	21.0%
MPOWER AS	14.3%

Roles

Styrets leder

3 selskaper

MPOWER AS 984585020

KJERRVIKA HYTTEGRENDS VEL 923216812

QUADRATECH AS 933910997

Styremedlem

1 selskap

SPACETEC B.I.L. 929310594

Active roles recorded in the Register of Business Enterprises / the Central Coordinating Register

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 03.10.2026.