Brreg

Norwegian Business Registry (Brreg)

Skill by ara.so — Daily 2026 Skills collection

Access the official open API from Brønnøysundregistrene to search and retrieve data about all registered companies in Norway.

When to Use

• When the user asks about Norwegian companies
• When searching for company information in Norway
• When looking up organization numbers (organisasjonsnummer)
• When finding companies by name, location, industry, or other criteria
• When checking company status (bankruptcy, dissolution, etc.)

API Base URL

https://data.brreg.no/enhetsregisteret/api

Key Endpoints

Search Companies (Enheter)

curl "https://data.brreg.no/enhetsregisteret/api/enheter?navn=SEARCH_TERM&size=20"

Common parameters:

Get Company by Org Number

curl "https://data.brreg.no/enhetsregisteret/api/enheter/123456789"

Search Sub-entities (Underenheter)

Branch offices and departments:

curl "https://data.brreg.no/enhetsregisteret/api/underenheter?overordnetEnhet=123456789"

Get Organization Forms

List all valid organization types:

curl "https://data.brreg.no/enhetsregisteret/api/organisasjonsformer"

Common organization forms:

Get Recent Updates

Track new registrations and changes:

curl "https://data.brreg.no/enhetsregisteret/api/oppdateringer/enheter?dato=2024-01-01T00:00:00.000Z"

Bulk Downloads

Complete datasets (updated nightly ~05:00 AM):

Example Queries

Find all AS companies in Oslo with 50+ employees

curl "https://data.brreg.no/enhetsregisteret/api/enheter?organisasjonsform=AS&kommunenummer=0301&fraAntallAnsatte=50&size=100"

Search for tech companies

curl "https://data.brreg.no/enhetsregisteret/api/enheter?navn=tech&size=50"

Find companies registered this year

curl "https://data.brreg.no/enhetsregisteret/api/enheter?fraRegistreringsdatoEnhetsregisteret=2024-01-01&size=100"

Get all subsidiaries of a company

curl "https://data.brreg.no/enhetsregisteret/api/underenheter?overordnetEnhet=923609016"

Response Format

Responses are in HAL+JSON format with _embedded containing results and page containing pagination info:

{  "_embedded": {    "enheter": [      {        "organisasjonsnummer": "123456789",        "navn": "Company Name AS",        "organisasjonsform": {          "kode": "AS",          "beskrivelse": "Aksjeselskap"        },        "antallAnsatte": 50,        "forretningsadresse": {          "adresse": ["Street 1"],          "postnummer": "0150",          "poststed": "OSLO",          "kommune": "OSLO",          "kommunenummer": "0301"        },        "naeringskode1": {          "kode": "62.010",          "beskrivelse": "Programmeringstjenester"        }      }    ]  },  "page": {    "size": 20,    "totalElements": 150,    "totalPages": 8,    "number": 0  }}

Notes

• API is free and open (NLOD license)
• No authentication required for public data
• Rate limiting may apply for heavy usage
• Results limited to 10,000 per query (use bulk downloads for complete data)
• Data updated continuously during business hours

Documentation

• Official API docs: https://data.brreg.no/enhetsregisteret/api/dokumentasjon/en/index.html
• OpenAPI spec: https://raw.githubusercontent.com/brreg/openAPI/master/specs/enhetsregisteret.json