---
title: "MASTO — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a7ccf517-a90f-5fe9-8089-0f879e8360dd
json: https://whiteintel.dev/api/public/dossier/a7ccf517-a90f-5fe9-8089-0f879e8360dd
identifier: fr-siren:915310684
jurisdiction: FR
source: WhiteIntel corporate-ownership graph
---

# MASTO

**Type:** Company  
**Jurisdiction:** [FR](https://whiteintel.dev/jurisdictions/fr)  
**Identifier:** `fr-siren:915310684`  
**Canonical dossier:** https://whiteintel.dev/entity/a7ccf517-a90f-5fe9-8089-0f879e8360dd  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a7ccf517-a90f-5fe9-8089-0f879e8360dd  

## Registry profile

- **Status:** A  
- **Legal form:** Société civile `6540`  
- **Activity:** Activités immobilières `68.20B`  
- **Incorporated:** 2022-07-02  
- **Employees band:** NN  
- **Source:** INSEE-SIRENE  

## Provenance

- sirene — https://annuaire-entreprises.data.gouv.fr/entreprise/915310684

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **MASTO** — https://whiteintel.dev/entity/a7ccf517-a90f-5fe9-8089-0f879e8360dd · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MASTO**. Human view: https://whiteintel.dev/entity/a7ccf517-a90f-5fe9-8089-0f879e8360dd · Structured JSON: https://whiteintel.dev/api/public/dossier/a7ccf517-a90f-5fe9-8089-0f879e8360dd._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._