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How to choose and check
the name of your company in Luxembourg

The company name must be distinctive, available and include the legal suffix of your structure. Here are the rules to know, how to check availability and what Fidustra takes care of for you.

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The rules in Luxembourg

Luxembourg is relatively flexible on the choice of company names, but some basic rules apply. Non-compliance results in refusal of registration with the RCS.

  • Mandatory legal suffix
    Each structure requires a specific suffix in the official name (e.g. “S.A.R.L.” for a SARL).
  • Any language allowed
    French, English, Luxembourgish, German or any other language: Luxembourg does not impose a language for the name.
  • Same or similar name prohibited
    A name identical to or too close to a company already registered with the RCS will be refused.
  • Prohibited protected terms
    The words "bank", "insurance", "investment fund", "Luxembourg" and certain other terms are reserved and require special authorization.
  • Misleading name prohibited
    The name must not mislead as to the real activity or suggest an official affiliation (State, European Union, etc.).

Mandatory suffix per structure

SARL

S.À R.L.

Limited Liability Company

SA

S.A.

Limited Company

SARL-S

S.À R.L.-S.

Simplified SARL

SCS

S.C.S.

Simple Limited Partnership

NCS

S.N.C.

General Company

SCI

S.C.I.

Real Estate Civil Society

ASBL

A.S.B.L.

Assoc. non-profit

Holding Soparfi

S.À R.L. or S.A.

Depending on the form chosen

How to check availability

Two levels of verification are recommended: availability in the Trade Register and protection of the brand at European level.

1

Research at RCS Luxembourg

The Luxembourg Trade Register (LBR) allows a search by name on its LexNow portal. Fidustra carries out this preliminary verification before any action.

2

Brand verification (EUIPO / OEPI)

A name available at the RCS may be a registered trademark. If you plan to trade under this name, an EUIPO (European Trademark) check is recommended before incurring any set-up fees.

Fidustra checks for you

When you register, Fidustra automatically carries out the RCS check and alerts you if the desired name is unavailable or problematic — before launching any official process.

Tips for choosing your name

A good company name is memorable, available on the internet (domain name) and compatible with your future development. Avoid names that are too descriptive or too generic.

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  • Check the availability of the domain name (.lu, .com)
  • Avoid overly generic terms (“services”, “group”, “consulting”) alone
  • Think about your future markets — a French name can limit you internationally
  • Avoid special characters that are difficult to type or remember
  • Search the name on social media to avoid trademark conflicts
  • Plan a backup name if your first choice is taken
  • Fidustra can submit several alternative names to the RCS simultaneously

The people involved in your creation

From choice of name to official registration, Fidustra and its partners take care of every step. A single contact coordinates everything.

Coordinator

Fidustra — Trustee

Checks the availability of the name at the RCS, prepares the entire creation file and coordinates all stakeholders until the statuses and registration number are submitted.

Authentication

Notary partner

Writes the statutes with the validated name. Its intervention is obligatory for SARL, SA and Holding Soparfi. The notary then submits the statutes to the RCS for official publication.

Domiciliation

Head office partner

Provides the legal address which will appear in the statutes and in the RCS. The address is inseparable from the official name of the company — it must be located in Luxembourg.

Capital & account

Bank partner

Opens the professional account in the name of the company — including its official name — and receives the deposit of the incorporation capital before signing the statutes.

Authorization

Middle Classes Department

Issues the establishment authorization in the name of the company. The official name is verified during the examination of the file.

Registration

Trade Register (RCS)

Officially registers the company name. It is at this stage that availability is definitively confirmed — hence the importance of the preliminary verification carried out by Fidustra.

You have a name in mind

Register on Fidustra and indicate your desired denomination — we will check availability and launch your file.

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