---
title: "三井住友海上火災保険株式会社 — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a3f943af-e1ba-528f-8455-9e505a43906d
json: https://whiteintel.dev/api/public/dossier/a3f943af-e1ba-528f-8455-9e505a43906d
identifier: lei:5493006KRZ0SJO41LZ83
jurisdiction: JP
risk: Low
source: WhiteIntel corporate-ownership graph
---

# 三井住友海上火災保険株式会社

**Type:** Company  
**Jurisdiction:** JP  
**Identifier:** `lei:5493006KRZ0SJO41LZ83`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a3f943af-e1ba-528f-8455-9e505a43906d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a3f943af-e1ba-528f-8455-9e505a43906d  

## Registry profile

- **Status:** ISSUED  
- **Legal form:** `T417`  
- **Source:** GLEIF  

## Ownership & control

### Holdings / subsidiaries

- **MITSUI SUMITOMO INSURANCE COMPANY (EUROPE), LIMITED** (parent) — https://whiteintel.dev/entity/5d7e433d-a9b6-5992-89a6-9ef567868908
- **MS First Capital Insurance Limited** (parent) — https://whiteintel.dev/entity/243a37a0-10d0-5011-b6a0-5565a408b4b5
- **MSIG EUROPE** (parent) — https://whiteintel.dev/entity/4e041f30-3656-5693-8599-1ff607b9aaa0
- **MS AMLIN CORPORATE SERVICES LIMITED** (parent) — https://whiteintel.dev/entity/63edf6d5-1b91-5400-9586-db6967254add
- **三井住友海上火災保險(香港)有限公司** (parent) — https://whiteintel.dev/entity/8bf1486e-4e59-5016-9573-5cf3296b342d
- **MS AMLIN HOLDINGS LIMITED** (parent) — https://whiteintel.dev/entity/e1300590-8a27-59b6-a48e-f2e61279afc2
- **MS AMLIN UNDERWRITING LIMITED** (parent) — https://whiteintel.dev/entity/b47c87ca-c847-55b8-b6b8-9a47ebaf2003
- **MSIG INSURANCE (SINGAPORE) PTE. LTD.** (parent) — https://whiteintel.dev/entity/9a63dd44-73f6-51c4-afb9-72c147e410c9
- **MS AMLIN INVESTMENT MANAGEMENT LIMITED** (parent) — https://whiteintel.dev/entity/02a71764-fa0a-532b-ba74-be3283277bd5
- **MSI GUARANTEEDWEATHER TRADING LTD.** (parent) — https://whiteintel.dev/entity/34a9ad66-9724-52e7-ad0f-e18594c6b372

### UBO chain (walk to the ultimate owner)

A **2-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Provenance

- GLEIF — https://search.gleif.org/#/record/5493006KRZ0SJO41LZ83

## 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 **三井住友海上火災保険株式会社** — https://whiteintel.dev/entity/a3f943af-e1ba-528f-8455-9e505a43906d · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **三井住友海上火災保険株式会社**. Human view: https://whiteintel.dev/entity/a3f943af-e1ba-528f-8455-9e505a43906d · Structured JSON: https://whiteintel.dev/api/public/dossier/a3f943af-e1ba-528f-8455-9e505a43906d._

_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"._