Karl Otto Ellefsen is a private shareholder. Karl Otto Ellefsen holds a stake in 1 company, and roles in several others.

Companies Karl Otto Ellefsen owns

Company	Stake
BERRE ELLEFSEN. CURATING ARCHITECTURE & URBANISM AS	33.3%

Roles

Styremedlem

1 selskap

BERRE ELLEFSEN. CURATING ARCHITECTURE & URBANISM AS 921245084

Styrets leder

1 selskap

FORENINGEN ASBUILT 930348112

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.