---
title: "Mr Mark Frederick Owen Long — Ownership Dossier"
canonical: https://whiteintel.dev/entity/c4216ebe-2af3-5d2e-98be-e24a88b0a13c
json: https://whiteintel.dev/api/public/dossier/c4216ebe-2af3-5d2e-98be-e24a88b0a13c
identifier: oo-person:GB-COH-PER-07790094-7Q-P9OoRZKcihaTr_a-w8KQg1gs
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Mark Frederick Owen Long

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `oo-person:GB-COH-PER-07790094-7Q-P9OoRZKcihaTr_a-w8KQg1gs`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/c4216ebe-2af3-5d2e-98be-e24a88b0a13c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/c4216ebe-2af3-5d2e-98be-e24a88b0a13c  

## Ownership & control

### Holdings / subsidiaries

- **PRINCIPALLY HEALTH LIMITED** (beneficial owner) — https://whiteintel.dev/entity/f11da7cd-3e31-53ee-8079-d37ea08b22a2

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Mark Frederick Owen Long**. Human view: https://whiteintel.dev/entity/c4216ebe-2af3-5d2e-98be-e24a88b0a13c · Structured JSON: https://whiteintel.dev/api/public/dossier/c4216ebe-2af3-5d2e-98be-e24a88b0a13c._

_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"._