---
title: "Mr David John Siddle — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e69b491e-a844-508b-8a09-322e7368b33d
json: https://whiteintel.dev/api/public/dossier/e69b491e-a844-508b-8a09-322e7368b33d
identifier: oo-person:GB-COH-PER-09070391-A_TwWqRSCU_uUArXanMNgtJgzsg
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr David John Siddle

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-09070391-A_TwWqRSCU_uUArXanMNgtJgzsg`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e69b491e-a844-508b-8a09-322e7368b33d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e69b491e-a844-508b-8a09-322e7368b33d  

## Ownership & control

### Holdings / subsidiaries

- **BIRKHEAD MANAGEMENT LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/ca6b4514-9daf-5d8a-8b7e-d11e7e62e06d

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr David John Siddle**. Human view: https://whiteintel.dev/entity/e69b491e-a844-508b-8a09-322e7368b33d · Structured JSON: https://whiteintel.dev/api/public/dossier/e69b491e-a844-508b-8a09-322e7368b33d._

_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"._