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