Company ID Generator - Generate Business Registration Numbers for 8 Countries

Generate fictional company registration numbers for 8 countries: NL (KVK), US (EIN), UK (CRN), DE (HRB), BE (BCE), FR (SIREN), ES (CIF) and IT (REA). Ideal as test data for business registration systems and invoice processing.

Note:All generated data is entirely fictional and not suitable for use as real personal information.

Count:

What is a KVK number?

The KVK number (Chamber of Commerce number) is a unique 8-digit number assigned to every company or legal entity registered in the Trade Register of the Chamber of Commerce (Kamer van Koophandel).

The KVK number is required on business documents such as invoices, letters, emails and websites. The number is public and can be looked up via the KVK Trade Register.

Note: a KVK number is not the same as an RSIN (Legal Entities and Partnerships Identification Number) or a branch number. Each company has one KVK number but can have multiple branch numbers.

Frequently Asked Questions

Which countries are supported by the company ID generator?
The company ID generator supports 8 countries with their specific formats: Netherlands (KVK, 8 digits), United States (EIN, XX-XXXXXXX), United Kingdom (CRN, 8 characters), Germany (HRB number), Belgium (BCE, 10 digits), France (SIREN, 9 digits), Spain (CIF) and Italy (REA number). Each country generates numbers in its official business registration format.
Are the generated company IDs real?
No, all generated company registration numbers are entirely fictional. They follow the correct format for each country, but are not linked to existing businesses in any trade register. Use them exclusively for software testing and filling test databases.
What do developers use fictional company IDs for?
Developers use fictional company registration numbers for testing business registration forms, ERP systems, invoice software, CRM systems and business validation logic across multiple countries. Also for integration tests with trade register APIs and setting up test data for international B2B applications.
Can I generate multiple company IDs at once?
Yes, with the bulk generator you can generate up to 10,000 unique fictional company registration numbers for any of the 8 supported countries. All numbers are created client-side and can be exported directly to Excel (.xlsx), CSV, or JSON.
Is my data stored?
No. The company ID generator runs entirely in your browser. No data is transmitted or stored on a server. After closing the page, the numbers are gone, unless you exported them.

Related Tools