---
title: "Miss Mary Ann Mackenzie — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2be19f71-86e5-5156-aaec-ebf77f3f298c
json: https://whiteintel.dev/api/public/dossier/2be19f71-86e5-5156-aaec-ebf77f3f298c
identifier: oo-person:GB-COH-PER-07873286-AybIHeU5bt47G9qOjU1pOR_kYiw
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Miss Mary Ann Mackenzie

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-07873286-AybIHeU5bt47G9qOjU1pOR_kYiw`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/2be19f71-86e5-5156-aaec-ebf77f3f298c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2be19f71-86e5-5156-aaec-ebf77f3f298c  

## Ownership & control

### Holdings / subsidiaries

- **SWMM LTD** (beneficial owner) — 50% — https://whiteintel.dev/entity/1b067c08-48bb-5b8c-93d5-d1f7b029d6b8

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Miss Mary Ann Mackenzie**. Human view: https://whiteintel.dev/entity/2be19f71-86e5-5156-aaec-ebf77f3f298c · Structured JSON: https://whiteintel.dev/api/public/dossier/2be19f71-86e5-5156-aaec-ebf77f3f298c._

_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"._