JON FREDRIK MOSTRAUM is a private shareholder with an estimated portfolio value of NOK 11.3m. JON FREDRIK MOSTRAUM har eierandeler i 2 selskaper, og roller i flere selskaper.

Estimated portfolio value

NOK 11.3m

The sum of estimated values across all known holdings in Norwegian AS/ASA companies

Selskaper JON FREDRIK MOSTRAUM eier

Company	Stake	Value (est.)
MOSTRAUM HOLDING AS	70.0%	NOK 11.3m
HJELMÅS HANDELSLAG LL	0.3%	NOK 4,000

Roles

Styrets leder

4 selskaper

HJELMÅS MEKANISKE VERKSTED AS 921590903

ROSLAGEN CHARTERING AS 920178731

ROSLAGEN SHIPPING AS 921590865

MOSTRAUM MANAGEMENT AS 921590830

Daglig leder

3 selskaper

HJELMÅS MEKANISKE VERKSTED AS 921590903

ROSLAGEN CHARTERING AS 920178731

MOSTRAUM MANAGEMENT AS 921590830

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 15.06.2026.