Jonny Magne Karoliussen is a private shareholder. Jonny Magne Karoliussen holds a stake in 1 company, and roles in several others.

Companies Jonny Magne Karoliussen owns

Company	Stake	Value (est.)
JMK BYGGSERVICE AS	100.0%	–

Roles

Daglig leder

1 selskap

JMK BYGGSERVICE AS 930569607

Deltaker med delt ansvar

1 selskap

Z. W KANTOR DA 987667885

Styrets leder

1 selskap

JMK BYGGSERVICE AS 930569607

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 02.09.2026.