---
title: "Mr John Campbell Costello — Ownership Dossier"
canonical: https://whiteintel.dev/entity/1af7d68d-2957-455b-8d2b-4ddb8a29989a
json: https://whiteintel.dev/api/public/dossier/1af7d68d-2957-455b-8d2b-4ddb8a29989a
identifier: psc:52ltLP-2SlvsBSuaHEWkees2jpU
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Campbell Costello

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:52ltLP-2SlvsBSuaHEWkees2jpU`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/1af7d68d-2957-455b-8d2b-4ddb8a29989a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/1af7d68d-2957-455b-8d2b-4ddb8a29989a  

## Ownership & control

### Holdings / subsidiaries

- **TAVEO GROUP LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/e50e133f-51da-57f7-be9c-8ff6e58c8223

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **Mr John Campbell Costello** — https://whiteintel.dev/entity/1af7d68d-2957-455b-8d2b-4ddb8a29989a · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Campbell Costello**. Human view: https://whiteintel.dev/entity/1af7d68d-2957-455b-8d2b-4ddb8a29989a · Structured JSON: https://whiteintel.dev/api/public/dossier/1af7d68d-2957-455b-8d2b-4ddb8a29989a._

_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"._