Business and other management consultancy activities
JAN TELLEFSEN
JAN TELLEFSEN is registered as a sole proprietorship in Oslo, Oslo with organisation number 925773085. The business is classified under business and other management consultancy activities (NACE 70.200).
Who owns JAN TELLEFSEN?
No shareholders are registered for JAN TELLEFSEN in open Norwegian sources. Shareholder data exists mainly for limited companies (AS/ASA).
Frequently asked questions about JAN TELLEFSEN
Where is JAN TELLEFSEN based?
JAN TELLEFSEN has its business address in Oslo.
Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 15.06.2026.