Brønnøysundregistrene is the Norwegian agency operating the country's central registers. The one that matters for company verification is Enhetsregisteret, the Central Coordinating Register for Legal Entities, holding every registered organisation in Norway. It is published as free open data with no registration, which is why Norwegian coverage tends to be more complete and fresher than most European registries.
Every entity gets a 9-digit organisasjonsnummer carrying a modulo-11 checksum, so malformed numbers can be rejected offline. Numbers in issue run from roughly 810 million upward. Prometiam serves the raw organisation number as the Norwegian company id, so it round-trips to Brreg directly.
Name and former names, organisation form (AS, ASA, ENK, NUF and others), registered and business address, NACE-aligned industry code, bankruptcy and liquidation status flags with dates, and roles including directors, chair, CEO and auditor. A NUF is a Norwegian branch of a foreign company — it has an organisation number, but the legal entity sits in another jurisdiction.
Norway has no corporate-event gazette comparable to BORME or BODACC, so there is no appointment/capital/merger stream to ingest and corporate-event endpoints return nothing for Norway. Norwegian corporate insolvency notices are served separately.
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Official source: Brreg's Enhetsregisteret API