---
title: "Mr Mark Andrew Ruff — Ownership Dossier"
canonical: https://whiteintel.dev/entity/1f026f62-ea03-4bd2-bd21-a082bfcf7a1a
json: https://whiteintel.dev/api/public/dossier/1f026f62-ea03-4bd2-bd21-a082bfcf7a1a
identifier: psc:JNQK-D7mkzJX2cdwsBWshduyCEQ
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Mark Andrew Ruff

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:JNQK-D7mkzJX2cdwsBWshduyCEQ`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/1f026f62-ea03-4bd2-bd21-a082bfcf7a1a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/1f026f62-ea03-4bd2-bd21-a082bfcf7a1a  

## Ownership & control

### Holdings / subsidiaries

- **HARNHAM LIMITED** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/73639e67-ade2-573b-9d9f-e165f60e9e9b

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Mark Andrew Ruff**. Human view: https://whiteintel.dev/entity/1f026f62-ea03-4bd2-bd21-a082bfcf7a1a · Structured JSON: https://whiteintel.dev/api/public/dossier/1f026f62-ea03-4bd2-bd21-a082bfcf7a1a._

_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"._