Mateusz Grzegorz Jamka is a private shareholder. Mateusz Grzegorz Jamka holds a stake in 1 company, and roles in several others.

Companies Mateusz Grzegorz Jamka owns

Company	Stake
MJ OSLO AS	100.0%

Roles

Daglig leder

1 selskap

MJ OSLO AS 929528522

Styrets leder

1 selskap

MJ OSLO AS 929528522

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.