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

Companies Jan Helge Siem owns

Company	Stake
NAJS AS	100.0%
PROXIMAR SEAFOOD AS	0.0%

Roles

Styrets leder

2 selskaper

NAJS AS 824509662

OLDERVIKA MARINA OG BÅTFORENING 989743686

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.