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

Companies Steinar Halvorsen owns

Company	Stake
AIR SPONGE NORGE AS	100.0%
CHRISTIANIA VEDFORRETNING AS	100.0%

Roles

Styremedlem

2 selskaper

ØVRE ÅSEBU VANNLAG SA 997270541

ØVRE ÅSEBU HYTTEFORENING 997270568

Styrets leder

2 selskaper

CHRISTIANIA VEDFORRETNING AS 929113470

AIR SPONGE NORGE AS 993644838

Daglig leder

1 selskap

AIR SPONGE NORGE AS 993644838

Innehaver

1 selskap

HALVORSEN STEINAR CONSULT 982673755

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.