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:

Parameter Description

navn Company name (partial match)

organisasjonsnummer 9-digit org number (comma-separated for multiple)

organisasjonsform Organization type: AS, ENK, NUF, ANS, DA, etc.

naeringskode Industry code (NACE)

kommunenummer 4-digit municipality code

postadresse.postnummer Postal code

forretningsadresse.postnummer Business address postal code

konkurs true/false - bankruptcy status

underAvvikling true/false - dissolution status

registrertIMvaregisteret true/false - VAT registered

fraAntallAnsatte Minimum employees

tilAntallAnsatte Maximum employees

fraRegistreringsdatoEnhetsregisteret Registration date from (YYYY-MM-DD)

tilRegistreringsdatoEnhetsregisteret Registration date to (YYYY-MM-DD)

size Results per page (default: 20, max depth: 10000)

page Page number (0-indexed)

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:

Code Description

AS Aksjeselskap (Private limited company)

ASA Allmennaksjeselskap (Public limited company)

ENK Enkeltpersonforetak (Sole proprietorship)

NUF Norskregistrert utenlandsk foretak (Foreign enterprise)

ANS Ansvarlig selskap (General partnership)

DA Selskap med delt ansvar (Shared liability partnership)

SA Samvirkeforetak (Cooperative)

STI Stiftelse (Foundation)

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):

Format URL

JSON (gzipped) https://data.brreg.no/enhetsregisteret/api/enheter/lastned

CSV https://data.brreg.no/enhetsregisteret/api/enheter/lastned/csv

Excel https://data.brreg.no/enhetsregisteret/api/enheter/lastned/regneark

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

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