---
id: "dk_cvr"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["companies", "finances"]
country: ["DK"]
langs: ["da"]
quality: 100
url: "http://registry.apicrafter.io/datatype/dk_cvr"
---

# Danish business registration number (CVR) (`dk_cvr`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

CVR-nummer, the 8-digit number of a business in the Danish Central Business Register. With the DK prefix it is also the VAT number (momsregistreringsnummer). It does not start with 0 and has a weighted modulo 11 check.

- Parent datatype: `vatin`
- Personal data (PII): no
- Categories: Companies/business/organizations (companies), Finances and banking (finances)
- Countries: Denmark (DK)
- Languages: Danish (da)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^(?:DK[ -]?)?[1-9]\d(?: ?\d{2}){3}$
```

## Examples

- `DK 90 30 16 59` — Real-world value published online
- `DK10290813` — Real-world value published online
- `903016597` (invalid example) — One character too many

## Mappings

- orgid: `DK-CVR`
- schema_org: `vatID`
- stdnum: `dk.cvr`
- wikidata: `P1059`

## Supported by tools

- `dataprep`
- `pythonstdnum`

## Translations

- da: CVR-nummer

## Sources

- wikipedia: <https://da.wikipedia.org/wiki/CVR-nummer>
- other: <https://arthurdejong.org/python-stdnum/doc/2.2/stdnum.dk.cvr.html>
- other: <https://docs.dataprep.ai/user_guide/clean/clean_dk_cvr.html>
- wikidata: <https://www.wikidata.org/wiki/Property:P1059>

## Quality

Score 100/100.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/dk_cvr.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/DK/companies/dk_cvr.yaml>