KvK number

Definition

Dutch Chamber of Commerce (Kamer van Koophandel) 8-digit company registration number; ISO 6523 ICD 0106.

Often supplied alongside the OIN (Organisatie Identificatie Nummer) for Dutch B2G; OIN uses EAS scheme 0190 for public bodies.

KvK is widely used by NL-based e-invoicing platforms for matching trade-register data and supports basic VIES-style verification.

EN 16931 code list (CEF EAS) that says which identifier scheme — VAT-ID, GLN, OIN, etc. — is used for an electronic address.

International standard that registers identifier schemes for organisations — the foundation of the EAS code list.

A network and specifications for exchanging e-procurement documents, including e-invoices.