Type a Norwegian organisation number and get the entity from the Brønnøysund Register Centre: name, organisation form, status and municipality, live. The modulus-11 check digit is verified in your browser first.
Every Norwegian entity — company, foundation, association, public body, sole proprietorship — gets a nine-digit organisation number when it enters Enhetsregisteret, the central register run by the Brønnøysund Register Centre. The last digit is a modulus-11 check over the first eight with the weights 3, 2, 7, 6, 5, 4, 3, 2, which is why a mistyped number is caught before the lookup.
The same number is the entity’s VAT number once it is registered for VAT (with MVA appended), its employer number and its key in the Register of Business Enterprises, Foretaksregisteret. Norway publishes the register openly, and the organisation number is the identifier the whole public sector shares.
The lookup sends the number to the Prometiam API, which holds Enhetsregisteret, and returns the name, organisation form, status and municipality. Because the number is the register’s own key, the Prometiam company id for a Norwegian entity is the organisation number itself.
Directors, filings, corporate events, insolvency notices and the full record are one call away with a free key — 1,000 calls a month, no card. For Norway that includes the roles register — board members, general manager, auditor — and the compulsory-liquidation flag. Norway has no corporate-event stream.
Is the organisasjonsnummer the same as the VAT number?
It is the basis of it: a VAT-registered entity uses its organisation number followed by MVA. The lookup takes the nine digits.
Why does a valid number return nothing?
Entities deleted from the register are not served, and a new registration may take a few days to appear. Try the name search.
Can I do this in code?
Yes: GET /companies/search?company_number=923609016&country=NO with an API key returns the same record as JSON; the free tier covers 1,000 calls a month.