RCS number search (Luxembourg)
Free, official, source-cited — updated 2026-06.
Search Company Records in Luxembourg
3 free lookups per day. No sign-up required.
How do I look up a company by its registration number in Luxembourg?
Enter the RCS to look up a Luxembourg company directly on RCS Luxembourg. Unlike a name search, an RCS returns exactly one entity, which is why it is the identifier to use for KYC, invoicing and contract checks.
Step-by-step
- 1
Find the RCS on the paperwork
The RCS normally appears on invoices, contracts, the website footer or official correspondence. It is the number counterparties are required to quote.
- 2
Search the RCS
Enter the number exactly as printed. Punctuation and spacing vary between documents — strip them if the search returns nothing.
- 3
Confirm the returned entity
Check the legal name on the returned record matches the name on your paperwork. A mismatch between quoted number and quoted name is a serious warning sign.
- 4
Verify at RCS Luxembourg
For anything contractual, confirm the number against the primary source at https://www.lbr.lu.
https://www.lbr.lu
Frequently asked questions
What is a RCS in Luxembourg?
It is the identifier RCS Luxembourg assigns to a registered entity. It stays with the entity even if the trading name changes, which makes it the reliable way to track a company over time.
Is a RCS lookup free?
Yes. Looking up a company by RCS on RCS Luxembourg is free and requires no account.
What if the RCS returns no result?
Re-enter it without spaces or punctuation first. If it still returns nothing, the number may be mistyped, belong to a different country's register, or not exist — ask the counterparty to confirm it in writing.
Should I use the RCS or the company name?
The RCS. Names are duplicated across entities within a group; the number is unique to one entity.
Why is Luxembourg a financial hub?
Luxembourg offers political stability, a multilingual workforce, favorable holding company and fund regimes, extensive double taxation treaty network (80+ countries), and is the EU's largest domicile for investment funds (over €5 trillion AUM).
People also ask about look up a company by its registration number in Luxembourg
The exact questions searchers type into Google — answered from the primary source.
Is the Luxembourg company register free to search?
Yes. Basic company lookups on the RCS (Registre de Commerce et des Sociétés) are free — you can search by company name or registration number, view legal status, registered address and (usually) directors at no cost. Some jurisdictions charge a small fee only for downloading full filed documents.
What is the official Luxembourg business registry?
The RCS (Registre de Commerce et des Sociétés) is the official public register of companies incorporated in Luxembourg. It is operated by the government and is the primary source cited on this page — https://www.lbr.lu.
Related guides and tools
More Luxembourg guides
- Search companies by name
Find any registered company from a partial name — free, no signup.
- Search the company register
What the official register holds, and how to search it free.
- Search the business registry
Match a trading name to the registered legal entity behind it.
- Find the right entity
Tell apart several entities registered under near-identical names.
Luxembourg data
- Luxembourg company search
Search every RCS (Registre de Commerce et des Sociétés) record.
- RCS Luxembourg guide
Registre de Commerce et des Sociétés (Luxembourg)