SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO
SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO (abbreviated S.T.M.) is a Monegasque public limited company (Société Anonyme Monégasque) entered in Monaco’s Répertoire du Commerce et de l’Industrie (RCI) under number 94S02972. On 16 October 2026 the RCI showed it as active, with an RCI registration date of 8 February 1994. Its head office is at 2 avenue de Monte-Carlo (Piscine des Terrasses), Monaco. The company runs the Thermes Marins Monte-Carlo, a seawater therapy (thalassotherapy), spa and fitness centre in Monte-Carlo.
The RCI states its business as operating, under a gérance libre (lease-management agreement), a thalassotherapy and cardiovascular rehabilitation centre in Monte-Carlo. Ancillary activities include a bar and restaurant and the sale of clothing, swimwear and beauty and fitness products. The register notes that the business itself belongs to the Société des Bains de Mer. A Journal de Monaco notice of 5 March 2021 records that the lease-management agreement was renewed for ten years from 1 April 2019, expiring on 31 March 2029. The centre covers about 6,600 m² and offers a heated pool, treatments, a gym and a restaurant.
The company’s financial year ends on 31 March. Its share capital has been EUR 2,000,000 since an increase completed on 14 March 2001. Company-level figures published by the Société des Bains de Mer group show revenue of EUR 9.5 million for 2025/2026, against EUR 9.4 million for 2024/2025 and EUR 8.8 million for 2023/2024. The same figures show a net loss of EUR 2.0 million for 2025/2026 and negative equity of about EUR 1.6 million. A Journal de Monaco notice of 11 September 2026 convened an extraordinary general meeting for 29 September 2026. Its agenda was whether to continue trading despite the loss of half the share capital, and whether to reduce and then increase the capital. The outcome had not been published when this review was made. Similar continuation resolutions were adopted in earlier years, for example on 19 September 2014. The company has no Legal Entity Identifier in GLEIF.
Sources
- Direction du Développement Économique, Répertoire du Commerce et de l’Industrie — search record and extract preview for RCI 94S02972. Publication date not stated; retrieved 16 October 2026. https://teleservice.gouv.mc/rci/extrait/94S02972?lang=en
- Journal de Monaco no. 8528 — notice of renewal of the gérance libre (lease-management) of the “Thermes Marins Monte-Carlo” business. Published 5 March 2021; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/2021/Journal-8528/GERANCE-LIBRE-Premiere-Insertion
- Journal de Monaco no. 7487 — capital increase and amendment to Article 5 (capital raised to EUR 2,000,000). Published 23 March 2001; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/2001/Journal-7487/…
- Société Anonyme des Bains de Mer et du Cercle des Étrangers à Monaco — Document d’enregistrement universel 2025/2026 (list of consolidated companies at 31 March 2026, results of principal subsidiaries, Note 18 “Filiales et participations”, principal shareholders). Published July 2026; retrieved 16 October 2026. https://www.montecarlosbm-corporate.com/wp-content/uploads/2026/07/sbm_urd_2025_fr_260707_mel.pdf
- Journal de Monaco no. 8816 — notice convening the extraordinary general meeting of 29 September 2026 (continuation despite loss of half the share capital; capital reduction and increase). Published 11 September 2026; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/2026/Journal-8816/…-Siege-social-2-…
- Monte-Carlo Société des Bains de Mer — “Thermes Marins Monte-Carlo” (page reached from thermesmarinsmontecarlo.com). Publication date not stated; retrieved 16 October 2026. https://www.montecarlosbm.com/en/wellness-sport-monaco/thermes-marins-monte-carlo
- GLEIF — LEI search, country MC (no record for this company; the parent’s record 529900EOUMEP2AXWRT17 was returned for a control query). Retrieved 16 October 2026. https://api.gleif.org/api/v1/lei-records/529900EOUMEP2AXWRT17
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Shareholders
Shareholders of SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO
The principal shareholder of SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO is the Société Anonyme des Bains de Mer et du Cercle des Étrangers à Monaco (S.B.M., RCI 56S00523), which is listed on Euronext Paris. S.B.M.’s 2025/2026 universal registration document lists the company among the companies consolidated at 31 March 2026. It gives S.B.M.’s holding as 98.00% and its economic interest as 100.00%. A note explains that the minority shareholders of S.B.M. subsidiaries are natural persons who are not entitled to dividends. The minority shareholders are not named. The share capital is EUR 2,000,000, divided into 1,000 shares since the nominal value was raised to EUR 2,000 in 2001.
Ultimate beneficial ownership
Through S.B.M., the company is ultimately controlled by the State of Monaco, which held 64.21% of S.B.M.’s capital at 31 March 2026 according to the same document. The calculated effective holding of the State is 64.21% × 98.00% ≈ 62.9% of the company’s shares. The State is a sovereign shareholder, not a natural person, and no natural person is identified as a beneficial owner.
Data availability
Partial. Monaco’s RCI and the Journal de Monaco do not publish shareholder lists for a Société Anonyme Monégasque. The holding above comes from the listed parent’s regulatory filing, which does not identify the holders of the remaining 2.00%.
Sources
- Société Anonyme des Bains de Mer et du Cercle des Étrangers à Monaco — Document d’enregistrement universel 2025/2026 (list of consolidated companies at 31 March 2026, results of principal subsidiaries, Note 18 “Filiales et participations”, principal shareholders). Published July 2026; retrieved 16 October 2026. https://www.montecarlosbm-corporate.com/wp-content/uploads/2026/07/sbm_urd_2025_fr_260707_mel.pdf
- Journal de Monaco no. 7487 — capital increase and amendment to Article 5 (capital raised to EUR 2,000,000). Published 23 March 2001; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/2001/Journal-7487/…
- Direction du Développement Économique, Répertoire du Commerce et de l’Industrie — search record and extract preview for RCI 94S02972. Publication date not stated; retrieved 16 October 2026. https://teleservice.gouv.mc/rci/extrait/94S02972?lang=en
Officers
Directors and officers of SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO
SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO is run by a board of directors (Conseil d’Administration) under its statutes. The board elects a Chairman from among its members and may appoint a Vice-Chairman. Directors serve three-year terms, and the whole board is renewed every three years, under amendments published on 24 July 1998. Since an amendment published on 5 February 2021, a director’s mandate ends at the general meeting after the director reaches the age of 72. The board’s composition is not published in the sources reviewed, so no director is named here.
Recent officer changes
The notice convening the ordinary general meeting of 23 September 2024 included final discharge (quitus) for two directors whose mandates ended during 2023/2024, the ratification of one director’s appointment and the renewal of another’s. The notice for the meeting of 29 September 2026 included the ratification of one director’s appointment and changes to the statutory auditors. The notices do not name the people concerned.
Data availability
Not found. The free RCI record shows no directors, and Monaco publishes board changes only indirectly, through meeting notices in the Journal de Monaco. Nationality and residence are not disclosed.
Sources
- Journal de Monaco no. 7348 — amendments to Articles 10, 11, 12 and 15 (board of directors). Published 24 July 1998; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/1998/Journal-7348/…
- Journal de Monaco no. 8524 — amendment to Article 8 (directors’ age limit of 72). Published 5 February 2021; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/2021/Journal-8524/…
- Journal de Monaco no. 8711 — notice convening the ordinary general meeting of 23 September 2024. Published 6 September 2024; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/2024/Journal-8711/…
- Journal de Monaco no. 8816 — notice convening the ordinary general meeting of 29 September 2026. Published 11 September 2026; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/2026/Journal-8816/…-Siege-2-…
- Direction du Développement Économique, Répertoire du Commerce et de l’Industrie — search record and extract preview for RCI 94S02972. Publication date not stated; retrieved 16 October 2026. https://teleservice.gouv.mc/rci/extrait/94S02972?lang=en
Group Structure
Group structure of SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO
SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO is a subsidiary of the Société Anonyme des Bains de Mer et du Cercle des Étrangers à Monaco (S.B.M.), the listed operator of the Monte-Carlo casinos and hotels. It is fully consolidated in the S.B.M. group accounts. The State of Monaco holds 64.21% of S.B.M. and is the ultimate controlling shareholder. S.B.M. also owns the Thermes Marins Monte-Carlo business and has leased it to the company under the lease-management agreement running to 31 March 2029. No subsidiary of the company was found.
Verified corporate relationships
| Entity | Country | Registration number | Relationship | Ownership | Status | Information date |
|---|---|---|---|---|---|---|
| Société Anonyme des Bains de Mer et du Cercle des Étrangers à Monaco | Monaco | RCI 56S00523 (LEI 529900EOUMEP2AXWRT17) | Immediate parent | 98.00% holding; 100.00% economic interest | Current | 31 March 2026 |
| State of Monaco | Monaco | — | Ultimate controlling shareholder (via S.B.M.) | 64.21% of S.B.M.; calculated effective holding about 62.9% | Current | 31 March 2026 |
Data availability
Parent only. The relationships come from the parent’s regulatory filing. Monaco’s register publishes no corporate-linkage data. Sister subsidiaries of S.B.M. are listed in the same document.
Sources
- Société Anonyme des Bains de Mer et du Cercle des Étrangers à Monaco — Document d’enregistrement universel 2025/2026 (list of consolidated companies at 31 March 2026, results of principal subsidiaries, Note 18 “Filiales et participations”, principal shareholders). Published July 2026; retrieved 16 October 2026. https://www.montecarlosbm-corporate.com/wp-content/uploads/2026/07/sbm_urd_2025_fr_260707_mel.pdf
- Journal de Monaco no. 8528 — notice of renewal of the gérance libre (lease-management) of the “Thermes Marins Monte-Carlo” business. Published 5 March 2021; retrieved 16 October 2026. https://journaldemonaco.gouv.mc/Journaux/2021/Journal-8528/GERANCE-LIBRE-Premiere-Insertion
- GLEIF — LEI search, country MC (no record for this company; the parent’s record 529900EOUMEP2AXWRT17 was returned for a control query). Retrieved 16 October 2026. https://api.gleif.org/api/v1/lei-records/529900EOUMEP2AXWRT17
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Frequently Asked Questions
What does SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO do?
The company runs the Thermes Marins Monte-Carlo, a seawater therapy, spa and fitness centre in Monaco, under a lease-management agreement with the Société des Bains de Mer. The agreement runs until 31 March 2029.
Who owns SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO?
The Société des Bains de Mer holds 98.00% of the shares, with a 100% economic interest, at 31 March 2026. The remaining shares are held by natural persons who are not named and are not entitled to dividends.
Who is SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's UBO (Ultimate Beneficial Owner)?
No natural person is identified as a beneficial owner. The company is ultimately controlled by the State of Monaco, which holds 64.21% of S.B.M., giving a calculated effective holding of about 62.9%.
What is SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's company registration number?
SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's registration number is 94S02972, filed with Répertoire du Commerce et de l'Industrie in Monaco. Its current status on the register is active.
Is SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO still an active company?
SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's status on Répertoire du Commerce et de l'Industrie is listed as active.
When was SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO incorporated?
SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO was incorporated on 8 February 1994, according to Répertoire du Commerce et de l'Industrie.
What is SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's registered address?
The registered address on file for SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO is MONACO, Monaco.
What legal structure is SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO registered as?
SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO is registered as a Monegasque public limited company (Société Anonyme Monégasque, S.A.M.) in Monaco.
What is SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's revenue?
Company-level revenue was EUR 9.5 million in the financial year ended 31 March 2026, with a net loss of EUR 2.0 million, according to the S.B.M. 2025/2026 universal registration document.
Is SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO listed on a stock exchange?
It is not listed. Its parent, the Société des Bains de Mer (S.B.M.), is listed on Euronext Paris.
Who are the officers/directors of SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO?
The company is run by a board of directors with three-year terms, but the board's members are not named in the public sources reviewed. Journal de Monaco meeting notices from 2024 and 2026 record director changes without naming the people concerned.
Does SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO have a parent company or subsidiaries?
The company is a fully consolidated subsidiary of the Société Anonyme des Bains de Mer et du Cercle des Étrangers à Monaco (RCI 56S00523). That company is controlled by the State of Monaco.
Can Zavia monitor changes to SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's ownership over time?
This profile reflects a point-in-time snapshot from Répertoire du Commerce et de l'Industrie. Zavia's monitoring API can track changes to SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including Monaco, so records like SOCIETE ANONYME MONEGASQUE DES THERMES MARINS – MONTE-CARLO's registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Répertoire du Commerce et de l'Industrie and was last synced on 25 September 2026.