🇱🇺How to verify a supplier in Luxembourg
To verify a supplier in Luxembourg, look the company up for free in the official Registre de Commerce et des Societes (RCS), operated by LBR and confirm it is registered and currently active. The registry returns the free search returns the registered name, the RCS number, the legal form, the registered office and the filed documents list; full documents are paid.
The official registry
- Registry
- Registre de Commerce et des Societes (RCS), operated by LBR
- Company ID
- RCS number (letter B and digits for a company)
- Cost
- Free basic lookup
- Active status
- A struck-off or liquidated company is marked as such in the register. The VAT number can be confirmed free through EU VIES.
- Checked live 2026-08-10 (200).
Before you sign: five asks no registry can answer
The register proves the company exists and who signs. It says nothing about whether the supplier survives a bad quarter, a fire or a key person leaving. Serious suppliers answer these five asks without friction; hesitation on any of them is information too.
- Business continuity: what happens to your order if their plant loses power, a strike hits or their systems go down? Ask for the plan, not a reassurance.
- Liability insurance: is product or professional liability insured, with which insurer and to what ceiling? A certificate of insurance is a one-page email for a real firm.
- Exit terms: how do you terminate if it goes wrong, what notice and fees apply, and how do you get your tooling, molds or data back?
- Support in numbers: ask for response and resolution times as figures, not adjectives. A supplier who commits to hours in writing has a support process; one who writes fast support does not.
- Named people: who exactly runs production and who owns your account? Continuity of a named team matters more than a polished sales deck, and employee-review sites often show whether that team stays.
General commercial hygiene, not legal advice.
Verify it in four steps
- 1
Open the Registre de Commerce et des Societes (RCS), operated by LBR
Registre de Commerce et des Societes (RCS), operated by LBR is the official government record of companies in Luxembourg. Basic name or number search is free.
- 2
Search the exact legal name or ID
Search the supplier's registered name or its RCS number (letter B and digits for a company). If the name does not match cleanly, treat it as a red flag, it may be a trade name, a different entity, or wrong.
- 3
Confirm it is active, not struck off
A struck-off or liquidated company is marked as such in the register. The VAT number can be confirmed free through EU VIES.
- 4
Check it makes what it sells
A real factory carries a manufacturing activity code and a consistent trade history; a middleman reselling everything is the most common mismatch. For an EU company, also validate the VAT number in the free EU VIES system.
This is a factual pointer to public records, not legal advice. For the full method, see the 7 checks that separate a real supplier from a scam.
We do this check for you
On every Luxembourg company we list, we show what the open record says, each linked to its free public source so you can re-check it yourself, no paid badge. And we go past the big directories to the local and craft makers who are too small for them but real, then verify and sort them, so you find genuine Luxembourg suppliers, not just the loudest.
Luxembourg suppliers by sector
Every company on these pages shows what the open record says about it, each fact linked to its free public source.
Related guides
Questions
Is checking a Luxembourg supplier free?
Yes. A basic name or number lookup in the Registre de Commerce et des Societes (RCS), operated by LBR is free. Some full official extracts are paid, but confirming a company exists and is active costs nothing.
What ID does a Luxembourg company have?
Its RCS number (letter B and digits for a company). Ask the supplier for it, then confirm it in the Registre de Commerce et des Societes (RCS), operated by LBR and check the registered name matches.
How do I know a Luxembourg supplier is a real manufacturer, not a reseller?
The registry's activity code is the tell: a manufacturing code means a real maker, a wholesale or retail code means a trader. Checked live 2026-08-10 (200).