Jan Harald Olsen is a private shareholder. Jan Harald Olsen holds stakes in 2 companies, and roles in several others.

Companies Jan Harald Olsen owns

Company	Stake
RETUROLJE AS	53.3%
MADMAR AS	0.4%

Roles

Styrets leder

2 selskaper

RETUROLJE AS 918605657

MADMAR AS 923813632

Daglig leder

1 selskap

MADMAR AS 923813632

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.