Sondre Mjanger Halvorsen is a private shareholder. Sondre Mjanger Halvorsen holds stakes in 2 companies, and roles in several others.

Companies Sondre Mjanger Halvorsen owns

Company	Stake
TJØLLING VAKTMESTERTJENESTER AS	50.0%
COS EIENDOM AS	33.0%

Roles

Styremedlem

2 selskaper

TJØLLING VAKTMESTERTJENESTER AS 929642090

COS EIENDOM AS 931120859

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.