Luxembourg's Registre de Commerce et des Sociétés records the shareholders of an SARL and the directors of both SARL and SA. Control — who holds the votes, who sits on the board, and what the articles allow each party to enforce — is readable from filed documents before any agreement is signed.
The access path is the obstacle. A LuxTrust credential or a recognised qualified electronic signature is required to retrieve filed documents electronically. Most foreign requesters do not hold either. The credential cannot be obtained remotely in a single step. That barrier is structural, not procedural: it does not resolve by submitting a request in French.
The Registre de Commerce et des Sociétés is the primary source for corporate identity in Luxembourg. Every SARL and SA must file its constitutive act, subsequent amendments, and — for the SARL — the current list of shareholders with share counts.
From the RCS, the following can be established:
The RCS does not record the price paid for shares, the terms of any shareholders agreement, or any side arrangements between shareholders. What is filed is the structural layer: who holds what, and who is authorised to act.
Source: Registre de Commerce et des Sociétés (RCS Luxembourg) · verified 2026-09-10
Luxembourg operates a separate Registre des Bénéficiaires Effectifs (RBE), established under the 2019 law implementing the EU's Fourth and Fifth Anti-Money Laundering Directives. The RBE holds the identity of natural persons who ultimately own or control a Luxembourg entity.
Following the Court of Justice of the European Union ruling in joined cases C-37/20 and C-601/20 (November 2022), public access to beneficial ownership registers across EU member states was suspended as a default. Luxembourg implemented this restriction. Access to RBE data now requires a demonstrated legitimate interest. The standard for what constitutes a legitimate interest is applied by the RBE administration on a case-by-case basis.
For a party preparing to sign a shareholders agreement, the question of whether that interest qualifies is not resolved by the fact of the transaction alone. The access request must be substantiated. The outcome is not guaranteed in advance.
This means the beneficial ownership layer sits behind a procedural gate that is separate from the RCS access barrier. Both must be navigated independently.
Source: Registre des Bénéficiaires Effectifs (RBE) · verified 2026-09-10
Control in a Luxembourg company is not only a question of share ownership. The articles of association define what a majority shareholder can do unilaterally, what requires a supermajority, and what requires unanimous consent. They also define the scope of authority of each director or gérant.
The filed articles are retrievable from the RCS. Amendments are filed separately and must be read in sequence to reconstruct the current state of the articles. A single document pull is not sufficient if amendments have been filed after incorporation.
The Mémorial C (now the Recueil Électronique des Sociétés et Associations, RESA) publishes mandatory notices, including changes in management and amendments to articles. RESA is publicly searchable without a LuxTrust credential for the notice layer. The underlying filed documents require the credential.
For an SA, the board composition and the powers delegated to the managing director (administrateur-délégué) are on record. For an SARL, the gérant's authority and any restrictions on share transfers are in the articles. Both are material to understanding what a counterparty can enforce after signing.
Source: Recueil Électronique des Sociétés et Associations (RESA) · verified 2026-09-10
The standard electronic access route to RCS filed documents requires a LuxTrust credential. LuxTrust is Luxembourg's national trust service provider. Its credentials are issued to Luxembourg residents and, under specific conditions, to non-residents — but the issuance process requires physical identity verification that cannot be completed remotely in a single session.
An alternative is a qualified electronic signature issued by a trust service provider recognised under the eIDAS regulation. Not all national eID schemes of EU member states are accepted at the RCS portal without additional steps.
For a non-EU requester, neither path is straightforward. The result is that a foreign buyer preparing to sign a shareholders agreement cannot retrieve the underlying filed documents from the RCS portal on the day they decide to verify. The path requires either advance preparation or a representative with an existing credential.
Paper requests are possible for certified extracts. The processing time and the requirement to specify the exact document by reference number create a secondary barrier: without knowing the filing reference, the request cannot be completed without an intermediary step.
Source: RCS Luxembourg — access documentation · verified 2026-09-10
The sequence below reflects the order in which sources are consulted and the dependencies between steps.
Step 1 — Confirm the entity exists and is active. Search the RCS by company name or registration number. The result confirms legal form, registered office, and current status. This step does not require a LuxTrust credential.
Step 2 — Retrieve the current shareholder list (SARL) or articles (SA). For an SARL, the current list of shareholders with share counts is a filed document at the RCS. For an SA, shares are not listed by holder in the RCS; the shareholder register is held by the company itself or a depositary. This distinction is material: an SA shareholder register is not a public document.
Step 3 — Retrieve filed amendments in sequence. Each amendment to the articles is a separate filing. The sequence must be read to establish the current state of the articles. A single document pull is insufficient if the company has been amended since incorporation.
Step 4 — Check RESA for mandatory notices. Notices of management changes, dissolution, and certain corporate actions are published in RESA. This layer is searchable without a credential and provides a timeline of corporate events.
Step 5 — Submit an RBE access request with substantiated legitimate interest. The beneficial ownership layer requires a separate request to the RBE administration. The request must state the basis for legitimate interest. The outcome is not guaranteed.
Step 6 — Cross-reference against insolvency and enforcement records. Luxembourg insolvency proceedings are published in RESA and in the Tribunal d'Arrondissement de et à Luxembourg records. A negative result does not exclude a filed petition not yet published.
Source: RCS Luxembourg · RESA · RBE · verified 2026-09-10
The RCS shows the shareholder layer of an SARL with precision: names and share counts are on record. For an SA, the shareholder register is private. The RCS shows directors and articles, not shareholders.
The beneficial ownership layer is behind a legitimate-interest gate. The gate is real: access is not automatic for a transaction counterparty. The outcome of an RBE request is not predictable from the outside.
The articles of association show the formal allocation of rights. They do not show side agreements, drag-along or tag-along arrangements documented outside the articles, or the terms of any existing shareholders agreement. Those documents are not filed and are not retrievable from any public source.
The insolvency layer shows published proceedings. A petition filed but not yet published does not appear. The gap between filing and publication is a structural limit of the source, not a retrieval failure.
The chain of control can be established to the level of the filed shareholder list for an SARL, and to the level of the articles and directors for an SA. Where the chain continues above a Luxembourg holding company into another jurisdiction, the next link is governed by that jurisdiction's disclosure rules — not Luxembourg's.
A shareholder list filed at the RCS reflects the position at the date of filing. If shares have been transferred since the last filing, the RCS record does not reflect the current position. Luxembourg law requires that share transfers in an SARL be filed, but the timing of filing and the timing of transfer can diverge.
If the RESA notice of a management change predates the RCS filing of the updated articles, the two sources show different states of the company at the same moment. Reading both in sequence resolves the discrepancy; reading only one does not.
Where the RBE record and the RCS shareholder list name different entities at the same level of the structure, the discrepancy is itself a result. It does not resolve by choosing one source over the other.
| Tier | Price | What is included | What is NOT included |
|---|---|---|---|
| Signal | €890 | RCS entity confirmation; current shareholder list (SARL) or articles and directors (SA); RESA notice timeline; summary of access conditions and structural limits | RBE beneficial ownership layer; review of filed amendments in sequence; insolvency cross-reference; cross-border chain above Luxembourg holding |
| Standard | €1,900 | All Signal content; sequential review of filed amendments to establish current articles; RESA full notice review; insolvency and enforcement cross-reference; RBE access request with substantiated legitimate interest statement | Cross-border chain above Luxembourg holding; legal qualification of findings; advice on shareholders agreement terms |
| Extended | €4,200 | All Standard content; cross-border chain tracing above the Luxembourg entity into the next jurisdiction (one additional jurisdiction); consolidated findings memo with source citations and access-condition notes; gap analysis between filed documents and stated structure | Legal advice; representation in any proceeding; guarantee of RBE access outcome; tracing beyond one additional jurisdiction |
Does the RCS show who controls an SA, or only who manages it? For an SA, the RCS shows directors and the articles of association. The shareholder register of an SA is held by the company or a depositary and is not a public document. Control in the sense of voting power is not directly readable from the RCS for an SA. The articles show what the board can do; they do not show who instructs the board.
Is the beneficial ownership register in Luxembourg publicly accessible? No. Following the CJEU ruling of November 2022, public access to the RBE was suspended. Access now requires a demonstrated legitimate interest, assessed by the RBE administration on a case-by-case basis. A transaction counterparty preparing to sign a shareholders agreement may qualify, but the outcome is not automatic.
What if the Luxembourg entity is itself owned by a holding company in another jurisdiction? The RCS shows the immediate shareholder of the Luxembourg entity. If that shareholder is a foreign company, the chain continues into that jurisdiction's disclosure rules. The Signal and Standard tiers cover the Luxembourg layer only. The Extended tier covers one additional jurisdiction.
Can a foreign requester retrieve RCS documents without a LuxTrust credential? Paper requests for certified extracts are possible. They require the exact filing reference and are processed with a delay. Without a credential or a representative holding one, electronic retrieval is not available on demand. This is the structural access barrier described in this report.
What does the report not establish? The report does not establish the terms of any existing shareholders agreement, any side arrangements between shareholders, or the price paid for any share transfer. None of those documents are filed at the RCS or any other public source in Luxembourg.
Sources: - Registre de Commerce et des Sociétés (RCS Luxembourg) — https://www.rcs.lu — verified 2026-09-10 - Recueil Électronique des Sociétés et Associations (RESA) — https://www.resa.lu — verified 2026-09-10 - Registre des Bénéficiaires Effectifs (RBE) — https://www.lbr.lu/rbe — verified 2026-09-10 - LuxTrust — https://www.luxtrust.com — verified 2026-09-10
Disclaimer: This report is a factual compilation from official registers and public sources. It is provided for informational purposes only, does not constitute legal advice, and contains no legal qualification of the facts established. VLO Law Firm assumes no liability for actions taken or not taken based on this material. For advice regarding your particular situation, please contact info@vlolawfirm.com.
Author: Elena Moretti — Partner, Continental Europe, VLO Law Firm