KARLSRUD RØR AS
KARLSRUD RØR AS is registered as a limited company in Oslo, Oslo with organisation number 937728506. The business is classified under plumbing installation (NACE 43.221). The company was incorporated in 1985. Registered share capital is NOK 100,000, divided into 100 shares. The company's stated purpose is: “Drift og utleie av egen næringseiendom, investering i aksjer samt beslektet virksomhet.”. The most recent filed accounts, for the 2025 financial year, show NOK 607,000 in revenue and NOK 123,000 in operating profit.
Former names: HOLSTAD & WESTERHEIM AS, COMFORT LAMBERTSETER AS
Key figures · 2025
Financial health · 2025
Who owns KARLSRUD RØR AS?
KARLSRUD RØR AS has 3 registered shareholders:
- OLE JACOB ISAKSEN 47.0%
- ATLE HAGEN AS 34.0%
- KNUT WILLY ANDERSEN 19.0%
Which companies does KARLSRUD RØR AS own?
KARLSRUD RØR AS holds a stake in 1 company:
- RØRVERKET AS 49.5%
Frequently asked questions about KARLSRUD RØR AS
Who owns KARLSRUD RØR AS?
OLE JACOB ISAKSEN is the largest registered owner, with 47.0%.
What is the revenue of KARLSRUD RØR AS?
KARLSRUD RØR AS had revenue of NOK 607,000 in 2025.
Where is KARLSRUD RØR AS based?
KARLSRUD RØR AS has its business address in Oslo.
Property
10 companies are registered at this address.
The address this company is registered at, from the company register and matched against the cadastre. It does not say who owns the property — a company may be a tenant, and the address is often its accountant's. Source: Brønnøysundregistrene and © Kartverket.
Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 02.09.2026.