Janne Martinsen is a private shareholder with an estimated portfolio value of NOK 1.1m. Janne Martinsen holds stakes in 2 companies, and roles in several others.

Estimated portfolio value

NOK 1.1m

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

Companies Janne Martinsen owns

Company	Stake	Value (est.)
JOHN MARTINSEN BYGG AS	29.0%	NOK 756,000
BELUMA EIENDOM AS	29.0%	NOK 340,000

Roles

Styremedlem

2 selskaper

BELUMA EIENDOM AS 929287967

HADSEL FOLKEDANSLAG 915180930

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.