brreg
Search and retrieve Norwegian company data from Brønnøysundregistrene (the Norwegian Business Registry). Access all 1.2 million registered companies in Norway.
- Installs
- 1.4K
- Last 24h
- —
- Trending rank
- —
- Security
- Not audited
Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/reason-machines/trending-skills --skill brreg- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads brreg automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
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):
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
FAQ
What does the brreg skill do?
Search and retrieve Norwegian company data from Brønnøysundregistrene (the Norwegian Business Registry). Access all 1.2 million registered companies in Norway.
How do I install brreg?
Run npx skills add https://github.com/reason-machines/trending-skills --skill brreg in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/brreg/ (personal) or .claude/skills/brreg/ (project).
Which AI agents can use brreg?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is brreg safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains brreg?
It is published by reason-machines in reason-machines/trending-skills. It has 1,383 recorded installs.
More from reason-machines/trending-skills
openclaw-control-center
reason-machines/trending-skills
Local-first, security-first control center for OpenClaw agents — visibility dashboard with readonly defaults, token attribution, collaboration tracing, and safe write operations.
inkos-multi-agent-novel-writing
reason-machines/trending-skills
Multi-agent CLI system for autonomous novel writing, auditing, and revision with human review gates
claude-hud-statusline
reason-machines/trending-skills
A Claude Code plugin that displays a real-time HUD showing context usage, active tools, running agents, and todo progress in your terminal statusline.
understand-anything-knowledge-graph
reason-machines/trending-skills
Turn any codebase into an interactive knowledge graph using Claude Code skills — explore, search, and ask questions about any project visually.
agency-agents-ai-specialists
reason-machines/trending-skills
A collection of specialized AI agent personalities for Claude Code, Cursor, Aider, Windsurf, and other AI coding tools — covering engineering, design, marketing, sales, and more.
agent-browser-automation
reason-machines/trending-skills
Headless browser automation CLI for AI agents using native Rust binary with Chrome DevTools Protocol
Popular business & finance skills
sales-enablement
coreyhaines31/marketingskills
When the user wants to create sales collateral, pitch decks, one-pagers, objection handling docs, or demo scripts. Also use when the user mentions 'sales deck,' 'pitch deck,' 'one-pager,' 'leave-behind,' 'objection handling,' 'deal-specific ROI analysis,' 'demo script,' 'talk track,' 'sales playbook,' 'proposal template,' 'buyer persona card,' 'battle card,' 'battlecard,' 'competitive one-pager,' 'win-loss analysis,' 'why are we losing deals,' 'loss reasons,' 'how do I respond to this objection,' 'prospect just said,' 'help my sales team,' 'sales materials,' or 'what should I give my sales reps,' 'cold call script,' or 'voicemail script.' Use this for any document or asset that helps a sales team close deals. For public competitor comparison pages, see competitors. For running buyer interviews or churn research, see customer-research. For marketing website copy, see copywriting. For cold outreach emails, see cold-email. For the offer being sold (bonuses, guarantees, pricing structure),
revops
coreyhaines31/marketingskills
When the user wants help with revenue operations, lead lifecycle management, or marketing-to-sales handoff processes. Also use when the user mentions 'RevOps,' 'revenue operations,' 'lead scoring,' 'outbound pipeline stages,' 'lead routing,' 'MQL,' 'SQL,' 'pipeline stages,' 'deal desk,' 'CRM automation,' 'marketing-to-sales handoff,' 'data hygiene,' 'leads aren't getting to sales,' 'pipeline management,' 'lead qualification,' or 'when should marketing hand off to sales.' Use this for anything involving the systems and processes that connect marketing to revenue. For cold outreach emails, see cold-email. For email drip campaigns, see emails. For pricing decisions, see pricing.
sales-funnel-blueprint
autonnel/autonnel-skills
Turn an offer into a concrete multi-step sales funnel spec - page-by-page structure, price ladder, copy outline and the metrics each step must hit. Use when asked to build a sales funnel, marketing funnel, landing page flow, lead magnet funnel, webinar funnel, tripwire or VSL funnel, when planning a product launch page flow, or when someone asks "what pages do I need" for selling something online.
pricing
coreyhaines31/marketingskills
When the user wants help with pricing decisions, packaging, or monetization strategy. Also use when the user mentions 'pricing,' 'pricing tiers,' 'freemium,' 'free trial,' 'packaging,' 'price increase,' 'value metric,' 'Van Westendorp,' 'willingness to pay,' 'monetization,' 'how much should I charge,' 'my pricing is wrong,' 'pricing page,' 'annual vs monthly,' 'per seat pricing,' 'should I offer a free plan,' 'pricing page teardown,' 'pricing page audit,' 'is my pricing page AI-readable,' or 'can AI read my pricing.' Use this whenever someone is figuring out what to charge, how to structure their plans, or wants to audit a pricing page (for humans and for the AI agents that shortlist tools). For in-app upgrade screens, see paywalls. For offer construction (bonuses, guarantees, value framing, naming) on services/courses/coaching/high-ticket B2B, see offers.
cross-border-ecommerce
nexscope-ai/ecommerce-skills
Cross-border e-commerce expansion advisor. Scores target markets on 8 weighted dimensions (market size, ecommerce penetration, competition, regulatory complexity, logistics infrastructure, payment ecosystem, cultural distance, IP protection), compares 5 fulfillment models with cost and transit data, provides country-by-country tax/duty compliance guides (EU VAT/IOSS, UK VAT, US sales tax, CA GST, AU GST, JP consumption tax), maps local payment preferences by market, and builds a phased expansion roadmap. No API key required.
pricing-strategy
coreyhaines31/marketingskills
When the user wants help with pricing decisions, packaging, or monetization strategy. Also use when the user mentions 'pricing,' 'pricing tiers,' 'freemium,' 'free trial,' 'packaging,' 'price increase,' 'value metric,' 'Van Westendorp,' 'willingness to pay,' 'monetization,' 'how much should I charge,' 'my pricing is wrong,' 'pricing page,' 'annual vs monthly,' 'per seat pricing,' or 'should I offer a free plan.' Use this whenever someone is figuring out what to charge or how to structure their plans. For in-app upgrade screens, see paywall-upgrade-cro.