Before a shareholders agreement is signed, the question of control is not abstract. Who holds the mandate, who holds the shares, and who sits behind the declared structure — these are the three layers that determine what a co-signatory can enforce and what remains outside the written instrument.
Luxembourg operates two distinct registers for these layers. The RCS records the legal surface: directors, managers, registered capital, and filed amendments. The RBE records the declared beneficial owner. The gap between the two is where control questions concentrate.
The Registre de Commerce et des Sociétés is the primary corporate register. It holds the deed of incorporation, subsequent amendments, the identity of gérants and administrateurs, and the registered capital structure. Filings are public. The register is searchable by company name and registration number.
The Registre des Bénéficiaires Effectifs was established under the 2019 law transposing the EU Fourth and Fifth Anti-Money Laundering Directives. It holds the declared identity of any natural person who ultimately owns or controls more than 25 percent of a Luxembourg entity, or who exercises control by other means.
These two registers do not cross-reference automatically. A director named in the RCS may or may not appear in the RBE. A beneficial owner in the RBE may hold no formal mandate at all. Reading one register without the other produces an incomplete picture of control.
Source: Registre de Commerce et des Sociétés (RCS) · verified 2026-09-25
Source: Registre des Bénéficiaires Effectifs (RBE) · verified 2026-09-25
The RCS is accessible online. Company documents can be retrieved individually. Bulk re-use requires a separate arrangement; individual document retrieval for due diligence purposes is the applicable path.
The RBE is the more consequential barrier. Following the Court of Justice of the European Union ruling in Case C-37/20 (November 2022), unrestricted public access to beneficial ownership registers across EU member states was found incompatible with fundamental rights. Luxembourg suspended general public access to the RBE in response.
Access now requires a demonstration of legitimate interest. For a party preparing to sign a shareholders agreement, that interest is documentable. The procedural steps, however, are not self-service for a foreign requester:
A foreign buyer without Luxembourg presence cannot complete this path unassisted. The access condition is procedural, not substantive — the interest exists, the path requires local handling.
Source: RBE Luxembourg — lbr.lu · verified 2026-09-25
For a Luxembourg société à responsabilité limitée (Sàrl), the RCS shows:
| Data point | Source | Access |
|---|---|---|
| Names of gérants (managers) | RCS filing | Public |
| Date of appointment and term | RCS filing | Public |
| Registered share capital | RCS filing | Public |
| Shareholder list (parts sociales) | RCS filing | Public for Sàrl |
| Amendments to mandate | RCS filing | Public |
| Declared beneficial owner (name, nationality, extent of interest) | RBE | Legitimate interest required |
| Beneficial owner date of birth | RBE | Legitimate interest required |
For a société anonyme (SA), the shareholder register is not filed with the RCS. Shares may be held in bearer or registered form. The beneficial owner declaration in the RBE is the primary instrument for identifying the natural person behind an SA structure.
This distinction matters before signing. A co-signatory in an Sàrl can verify the declared shareholder list from the RCS. A co-signatory in an SA cannot — the RCS does not hold it, and the RBE requires the access procedure described above.
Luxembourg is a common jurisdiction for intermediate holding structures. A Luxembourg entity may itself be owned by another Luxembourg entity, or by a holding company in a third jurisdiction. The RCS records the immediate shareholder. It does not trace the chain beyond the first level.
The RBE is designed to reach through intermediate layers to the natural person. In practice, the declared beneficial owner is only as accurate as the most recent filing. Filings are updated when a change occurs; the register does not verify the declaration independently.
Where the immediate shareholder is a foreign entity, establishing the chain requires parallel retrieval from the register of that entity's jurisdiction. The number of steps depends on the depth of the structure. Each step carries its own access conditions, language, and processing time.
Source: RCS Luxembourg — rcs.lu · verified 2026-09-25
Luxembourg companies above certain thresholds are required to file annual accounts with the RCS. Filed accounts are retrievable individually. They show the balance sheet structure, the profit and loss account, and, in consolidated accounts, the group perimeter.
Filed accounts do not show the terms of a shareholders agreement. They do not show side letters, management fee arrangements, or voting proxies. Where the accounts show a related-party transaction, the note discloses the category but not the contractual terms.
For a buyer assessing control before signing, the accounts layer answers a different question: whether the declared structure is consistent with the financial flows. Inconsistency between the declared ownership and the financial flows is itself a finding.
Source: RCS Luxembourg — rcs.lu · verified 2026-09-25
The RCS and RBE together establish the declared layer: who holds the mandate, who has declared beneficial ownership, what the registered capital structure shows. This is the ceiling of what official sources allow.
The sources do not show:
Where a structure uses a fiduciary or nominee, the RBE declaration reflects the nominee unless the arrangement has been disclosed. Luxembourg law requires disclosure of the ultimate beneficial owner, not the intermediate fiduciary. Whether the declaration is accurate is a question the register cannot answer from its own data.
The chain in this report is traced to the level the sources permit. Where it stops, the report states why and at which link.
A discrepancy between the RCS shareholder list and the RBE beneficial owner declaration is not uncommon. It may reflect a recent transfer not yet updated in one register, a threshold difference in how control is calculated, or a structure where the declared beneficial owner controls through means other than direct shareholding.
A discrepancy between the filed accounts and the declared ownership structure — for example, where profit flows do not align with the declared shareholding percentages — is a separate category of finding. It does not resolve the question of control, but it frames the question more precisely for the parties negotiating the shareholders agreement.
Both categories of discrepancy are reported as findings, not as errors requiring correction before the report is delivered.
| Tier | Price | What is included | What is NOT included |
|---|---|---|---|
| Signal | €1,350 | RCS extract: directors, managers, registered capital, shareholder list (Sàrl); RBE access procedure and declared beneficial owner; summary of discrepancies between the two registers | Tracing intermediate holding layers beyond Luxembourg; filed financial statements; review of shareholders agreement draft |
| Standard | €2,850 | Everything in Signal; tracing one intermediate holding layer in a second jurisdiction; filed annual accounts for the most recent available year; written summary of findings with source references | Legal qualification of findings; review of draft shareholders agreement; advice on negotiating position |
| Extended | €6,300 | Everything in Standard; tracing up to three intermediate holding layers across jurisdictions; consolidated accounts review where filed; written findings report with source map and identified discrepancies | Legal advice; representation; any finding that requires a court order or notarial act to establish |
What is the difference between the RCS and the RBE for this purpose? The RCS records the legal mandate and the declared share structure. The RBE records the natural person who ultimately controls the entity. For an Sàrl, both layers are accessible. For an SA, the RCS does not hold the shareholder register; the RBE is the primary instrument for identifying the natural person behind the structure.
Why does the access condition matter if the legitimate interest exists? The interest is documentable. The procedural path — national identifier, language requirement, portal registration — is the barrier. A foreign requester without Luxembourg presence cannot complete the submission unassisted. The path is removed, not the entitlement.
What does the report say when the chain cannot be traced further? The report states the last verifiable link, the register where the chain stops, and the reason: either the source does not hold the data, or the access condition for the next jurisdiction is not met within the scope of the instruction. No finding is presented as complete when it is not.
Does the report cover the shareholders agreement itself? No. The report establishes what the official sources show about the parties. The terms of the agreement, the enforceability of its provisions, and the legal qualification of the findings are outside the scope of this product. Those questions are addressed in a separate legal instruction.
How long does retrieval take? RCS documents are retrievable within one to three working days. The RBE access procedure does not carry a fixed statutory deadline. In practice, processing varies. The timeline for a Standard or Extended report depends on the number of jurisdictions and the availability of documents in each register.
Sources: - Registre de Commerce et des Sociétés (RCS) — rcs.lu — verified 2026-09-25 - Registre des Bénéficiaires Effectifs (RBE) — lbr.lu — verified 2026-09-25 - CJEU judgment C-37/20, WM and Sovim SA v Luxembourg Business Registers — eur-lex.europa.eu — verified 2026-09-25 - Loi du 13 janvier 2019 instituant un registre des bénéficiaires effectifs — legilux.public.lu — verified 2026-09-25
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