---
title: "Mr William Anthony Duffy — Ownership Dossier"
canonical: https://whiteintel.dev/entity/66ffcb57-e5d0-5834-8a3a-52203f933448
json: https://whiteintel.dev/api/public/dossier/66ffcb57-e5d0-5834-8a3a-52203f933448
identifier: oo-person:GB-COH-PER-NI020285-bsEgeXSsE_HY_HyW26l8aFFbHlw
jurisdiction: IE
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr William Anthony Duffy

**Type:** Person  
**Jurisdiction:** IE  
**Identifier:** `oo-person:GB-COH-PER-NI020285-bsEgeXSsE_HY_HyW26l8aFFbHlw`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/66ffcb57-e5d0-5834-8a3a-52203f933448  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/66ffcb57-e5d0-5834-8a3a-52203f933448  

## Ownership & control

### Holdings / subsidiaries

- **NORTH WEST BUILDERS (DERRY) LIMITED** (beneficial owner) — https://whiteintel.dev/entity/c4c7eb6b-e6bd-57ee-8553-542daee092ff

## Provenance

- OpenOwnership — https://www.openownership.org

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr William Anthony Duffy**. Human view: https://whiteintel.dev/entity/66ffcb57-e5d0-5834-8a3a-52203f933448 · Structured JSON: https://whiteintel.dev/api/public/dossier/66ffcb57-e5d0-5834-8a3a-52203f933448._

_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"._