Torstein Blumer is a private shareholder with an estimated portfolio value of NOK 1.1m. Torstein Blumer holds a stake in 1 company, 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 Torstein Blumer owns

Company	Stake	Value (est.)
BLUMER HOLDING AS	100.0%	NOK 1.0m

Roles

Daglig leder

3 selskaper

BLUMER HOLDING AS 927121166

CONSTRUCTION MANAGEMENT INTERNATIONAL AS 963211295

MAGNA CONSTRUCTION MANAGEMENT AS 829130602

Styrets leder

3 selskaper

BLUMER HOLDING AS 927121166

CONSTRUCTION MANAGEMENT INTERNATIONAL AS 963211295

GRINDBAKKEN BARNEHAGE FORELDRERÅDETS ARBEIDSUTVALG 920014224

Styremedlem

2 selskaper

SUNPHADE AS 920159451

MAGNA CONSTRUCTION MANAGEMENT AS 829130602

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.