Jan Sigbjørn Mydland is a private shareholder. Jan Sigbjørn Mydland holds stakes in 4 companies, and roles in several others.

Companies Jan Sigbjørn Mydland owns

Company	Stake
DONEHEIA BYGG & UTLEIE AS	25.0%
BIRKELAND BENSINSTASJON AS	0.7%
TT ANLEGG AS	0.4%
BIRKELAND HANDELSLAG AS	0.1%

Roles

Styremedlem

1 selskap

DONEHEIA BYGG & UTLEIE AS 930211400

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.