---
title: "Mr John Roncalli Sammon — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f22b1d61-e275-44f6-8c8a-9e68a086fc76
json: https://whiteintel.dev/api/public/dossier/f22b1d61-e275-44f6-8c8a-9e68a086fc76
identifier: psc:pl950niQNmDdFZq2JRFxGT-l-Y8
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Roncalli Sammon

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:pl950niQNmDdFZq2JRFxGT-l-Y8`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f22b1d61-e275-44f6-8c8a-9e68a086fc76  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f22b1d61-e275-44f6-8c8a-9e68a086fc76  

## Ownership & control

### Holdings / subsidiaries

- **DBF DEVELOPMENTS LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/ccb76afb-dbaa-5733-a915-535e63e1c856

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Roncalli Sammon**. Human view: https://whiteintel.dev/entity/f22b1d61-e275-44f6-8c8a-9e68a086fc76 · Structured JSON: https://whiteintel.dev/api/public/dossier/f22b1d61-e275-44f6-8c8a-9e68a086fc76._

_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"._