Other business support service activities n.e.c.
STEFFEN TRONSTAD
STEFFEN TRONSTAD is registered as a sole proprietorship in Oslo, Oslo with organisation number 916219954. The business is classified under other business support service activities n.e.c. (NACE 82.990).
Who owns STEFFEN TRONSTAD?
No shareholders are registered for STEFFEN TRONSTAD in open Norwegian sources. Shareholder data exists mainly for limited companies (AS/ASA).
Frequently asked questions about STEFFEN TRONSTAD
Where is STEFFEN TRONSTAD based?
STEFFEN TRONSTAD 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.