# Sirenic Norwegian Local Business Units (Underenheter) Lookup

> Sirenic Norwegian Local Business Units (Underenheter) Lookup is a paid API for AI agents from api.sirenic.eu, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Returns all official local units (underenheter/establishments) for a Norwegian legal entity by its 9-digit organisasjonsnummer, including NACE industry codes, addresses, headcount, VAT status, and registration dates from Brønnøysundregistrene.

## Facts

- Endpoint: GET https://api.sirenic.eu/v1/eu/entreprise/NO/:id/etablissements?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sirenic-norwegian-local-business-units-underenheter-lookup-2ae9161b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kTOyH0DDA7szy94z7UfGE

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sirenic-norwegian-local-business-units-underenheter-lookup-2ae9161b
```

Example prompt: Can you pull all the official local units (underenheter) for Norwegian company 923609016 from the Brønnøysundregistrene — I need their NACE codes, addresses, headcount, and VAT status?

## When to prefer this

Use this endpoint when you need official Norwegian establishment-level (underenhet) data for a legal entity, including NACE industry classification, addresses, VAT status, and headcount, sourced directly from Brønnøysundregistrene under NLOD 2.0. Prefer this over generic company databases when you need daily-refreshed, authoritative Norwegian government data for compliance, supplier onboarding, or market research. Note: sole proprietorships are not supported.

## Known failure modes

- 404 returned for unknown organisasjonsnummer — payment cancelled
- 404 returned for sole proprietorship (enkeltpersonforetak) — payment cancelled, these are refused by design
- No units found returns explicit positive acknowledgement (known legal person with zero units), not an error
- Stale data possible within daily refresh cycle — data may lag up to 24 hours
- Invalid (non-9-digit or malformed) orgnr will likely return 404 or validation error

## How this service works

Norwegian company local units (underenheter, like SIRET establishments) from the official Enhetsregisteret (Brønnøysundregistrene, NLOD 2.0), refreshed daily from the national bulk: each unit's own 9-digit orgnr, name, industry code (NACE-NO) and auxiliary activity, published headcount, location and postal addresses, registration and ownership-change dates, VAT status, plus unit count and cumulative headcount. Legal persons only: a known one with no unit gets an explicit positive answer.

## Output

A structured list of all local units (underenheter) associated with the queried Norwegian company, each containing: the unit's own 9-digit orgnr, name, NACE-NO primary industry code, auxiliary activity, published employee headcount, physical location and postal addresses, registration and ownership-change dates, VAT status, plus aggregate unit count and cumulative headcount. If the legal entity has no units but is a valid legal person, an explicit positive confirmation is returned. Unknown or sole-proprietorship numbers return 404 with no charge.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "id"
     ],
     "properties": {
      "id": {
       "type": "string",
       "description": "9-digit Norwegian organisasjonsnummer of the COMPANY (Enhetsregisteret). LEGAL PERSONS ONLY: a sole proprietorship's units carry a person's name and are refused 404, payment cancelled. Unknown number returns 404, payment cancelled., e.g. 923609016"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sirenic-norwegian-local-business-units-underenheter-lookup-2ae9161b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sirenic.eu](https://www.zero.xyz/host/api.sirenic.eu/llms.txt)