---
title: "ALTERRA CAPITAL HOLDINGS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2aa17d2c-9bb1-50a4-a332-9254153b2d9c
json: https://whiteintel.dev/api/public/dossier/2aa17d2c-9bb1-50a4-a332-9254153b2d9c
identifier: sec:0001141719
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ALTERRA CAPITAL HOLDINGS LTD

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001141719`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/2aa17d2c-9bb1-50a4-a332-9254153b2d9c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2aa17d2c-9bb1-50a4-a332-9254153b2d9c  

## Ownership & control

### Owners / controllers

- **TRIDENT III PROFESSIONALS FUND L P** (tenpercentowner) — https://whiteintel.dev/entity/e65c128f-05cf-52df-81a1-adcf6d0990d6
- **STONE POINT CAPITAL LLC** (tenpercentowner) — https://whiteintel.dev/entity/44ebd04c-89cb-51a1-9e58-d5d533c02326
- **STONE POINT GP LTD.** (tenpercentowner) — https://whiteintel.dev/entity/57907088-a4ee-5ea2-9c39-114bcd3b1ccb
- **TRIDENT III, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/db927895-64fd-5b4d-ab87-30ab6f1a4678
- **TRIDENT CAPITAL III, L.P.** (tenpercentowner) — https://whiteintel.dev/entity/a08f2207-00c2-5cf0-bf14-8c51222e5db0
- **CHUBB CORP** (tenpercentowner) — https://whiteintel.dev/entity/ec7e245d-3a71-57a8-8972-b11c8d9a458c
- **MOORE HOLDINGS LLC** (tenpercentowner) — https://whiteintel.dev/entity/444a9632-b0b9-55fe-bc91-4a7ccfa5b1c0
- **BACON LOUIS M** (tenpercentowner) — https://whiteintel.dev/entity/9eacf843-e986-5c8f-a846-5e1bfb54441c

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

A **97-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.

## 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 **ALTERRA CAPITAL HOLDINGS LTD** — https://whiteintel.dev/entity/2aa17d2c-9bb1-50a4-a332-9254153b2d9c · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ALTERRA CAPITAL HOLDINGS LTD**. Human view: https://whiteintel.dev/entity/2aa17d2c-9bb1-50a4-a332-9254153b2d9c · Structured JSON: https://whiteintel.dev/api/public/dossier/2aa17d2c-9bb1-50a4-a332-9254153b2d9c._

_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"._