---
title: "Mr John Chamberlin — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ecaf676a-129c-5993-90bb-06e5dbd7136c
json: https://whiteintel.dev/api/public/dossier/ecaf676a-129c-5993-90bb-06e5dbd7136c
identifier: oo-person:GB-COH-PER-03620423-vxk5X8fxgOIqgqkR85mvHZwf85Q
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Chamberlin

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-03620423-vxk5X8fxgOIqgqkR85mvHZwf85Q`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ecaf676a-129c-5993-90bb-06e5dbd7136c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ecaf676a-129c-5993-90bb-06e5dbd7136c  

## Ownership & control

### Holdings / subsidiaries

- **FIRSTCALL SUPPORT SERVICES LIMITED** (beneficial owner) — https://whiteintel.dev/entity/3f6d44a6-5974-5660-bb75-26be895785c8

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Chamberlin**. Human view: https://whiteintel.dev/entity/ecaf676a-129c-5993-90bb-06e5dbd7136c · Structured JSON: https://whiteintel.dev/api/public/dossier/ecaf676a-129c-5993-90bb-06e5dbd7136c._

_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"._