---
title: "SIDNEI SATOSHI MURAYAMA — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ec5d580c-916c-5896-a684-cb3fa20afce1
json: https://whiteintel.dev/api/public/dossier/ec5d580c-916c-5896-a684-cb3fa20afce1
jurisdiction: BR
source: WhiteIntel corporate-ownership graph
---

# SIDNEI SATOSHI MURAYAMA

**Type:** Person  
**Jurisdiction:** [BR](https://whiteintel.dev/jurisdictions/br)  
**Canonical dossier:** https://whiteintel.dev/entity/ec5d580c-916c-5896-a684-cb3fa20afce1  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ec5d580c-916c-5896-a684-cb3fa20afce1  

## Ownership & control

### Holdings / subsidiaries

- **ORTRAMED SERVICOS MEDICOS LTDA.** (owner) — https://whiteintel.dev/entity/0103a35f-3ffb-5949-9adc-67395d4af152

## Provenance

- rfb_cnpj — https://casadosdados.com.br/solucao/cnpj/02653545

## 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 **SIDNEI SATOSHI MURAYAMA** — https://whiteintel.dev/entity/ec5d580c-916c-5896-a684-cb3fa20afce1 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SIDNEI SATOSHI MURAYAMA**. Human view: https://whiteintel.dev/entity/ec5d580c-916c-5896-a684-cb3fa20afce1 · Structured JSON: https://whiteintel.dev/api/public/dossier/ec5d580c-916c-5896-a684-cb3fa20afce1._

_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"._