Brreg
Look up Norwegian companies by name, org number, industry, or status via Brønnøysundregistrene’s open API while researching markets or validating B2B leads.
Overview
Brreg is an agent skill most often used in Idea (also Validate, Grow) that queries Norway’s official business registry API for company search and status data.
Install
npx skills add https://github.com/aradotso/trending-skills --skill brregWhat is this skill?
- Queries ~1.2 million registered Norwegian entities through the official Enhetsregisteret REST API
- Search by partial name, organisasjonsnummer, NACE code, municipality, postal code, and org type (AS, ENK, NUF, etc.)
- Filter bankruptcy (`konkurs`) and winding-up (`underAvvikling`) status for risk checks
- Documented curl patterns against `https://data.brreg.no/enhetsregisteret/api` with common query parameters
- Supports multi-org lookups with comma-separated organization numbers
- ~1.2 million registered companies in Norway
- 9-digit organisasjonsnummer lookups supported
Adoption & trust: 1.3k installs on skills.sh; 31 GitHub stars; 3/3 security scanners passed (skills.sh audits).
What problem does it solve?
You need authoritative Norwegian company facts but do not want to guess endpoints or parameter names for Brønnøysundregistrene’s open API.
Who is it for?
Solo builders researching Norwegian markets, verifying org numbers, or enriching leads during early customer discovery.
Skip if: Teams that need non-Norwegian registries, guaranteed SLAs, or bulk ETL without reviewing Brreg’s public API limits and terms themselves.
When should I use this skill?
When the user asks about Norwegian companies, organization numbers, or company status in Norway.
What do I get? / Deliverables
Your agent issues correct Enhetsregisteret requests and returns structured company results aligned with the user’s search criteria.
- Parameterized Brreg API requests
- Parsed company search or entity detail responses
Recommended Skills
Journey fit
Spans multiple journey phases - primary shelf plus alternate fits below.
Canonical shelf is Idea/research because the skill’s triggers center on discovery and due diligence before you commit to a niche or partnership. Research is where solo builders need registry facts—legal form, bankruptcy flags, addresses—not where they wire production backends.
Where it fits
Shortlist AS/ENK competitors in Oslo by `naeringskode` before picking a wedge.
Verify legal names and addresses of Norwegian rivals mentioned in a pitch doc.
Confirm a prospect’s org type and status before building a custom integration.
Enrich outbound lists with registry-backed company metadata during solo founder sales.
How it compares
Use instead of generic web search when you want structured registry fields from Norway’s official open data API.
Common Questions / FAQ
Who is brreg for?
Indie developers and agents working on Nordic B2B, compliance, or research workflows who need Norwegian company registry data on demand.
When should I use brreg?
Use it when a user asks about Norwegian companies, organisasjonsnummer lookups, industry or location filters, or bankruptcy and dissolution status—common in Idea research, Validate scoping, and Grow outbound research.
Is brreg safe to install?
The skill documents read-only public HTTP calls; review the Security Audits panel on this Prism page and avoid sending secrets in query strings.
SKILL.md
READMESKILL.md - Brreg
# Norwegian Business Registry (Brreg) > Skill by [ara.so](https://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) ```bash 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 ```bash curl "https://data.brreg.no/enhetsregisteret/api/enheter/123456789" ``` ### Search Sub-entities (Underenheter) Branch offices and departments: ```bash curl "https://data.brreg.no/enhetsregisteret/api/underenheter?overordnetEnhet=123456789" ``` ### Get Organization Forms List all valid organization types: ```bash 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: ```bash 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 ```bash curl "https://data.brreg.no/enhetsregisteret/api/enheter?organisasjonsform=AS&kommunenummer=0301&fraAntallAnsatte=50&size=100" ``` ### Search for tech companies ```bash curl "https://data.brreg.no/enhetsregisteret/api/enheter?navn=tech&size=50" ``` ### Find companies registered this year ```bash curl "https://data.brreg.no/enhetsregisteret/api/enheter?fraRegistreringsdatoEnhetsregisteret=2024-01-01&size=100" ``` ### Get all subsidiaries of a company ```bash curl "https://data.brreg.no/enhetsregisteret/api/underenheter?overordnetEnhet=92360