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