---
title: "Mrs Joanna Louise Calvert — Ownership Dossier"
canonical: https://whiteintel.dev/entity/eeda4e44-74a8-5271-a263-6ce87ec45646
json: https://whiteintel.dev/api/public/dossier/eeda4e44-74a8-5271-a263-6ce87ec45646
identifier: oo-person:GB-COH-PER-14526600-yJCuKE2UZ4ygonOSH83a9YFmVUI
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mrs Joanna Louise Calvert

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `oo-person:GB-COH-PER-14526600-yJCuKE2UZ4ygonOSH83a9YFmVUI`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/eeda4e44-74a8-5271-a263-6ce87ec45646  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/eeda4e44-74a8-5271-a263-6ce87ec45646  

## Ownership & control

### Holdings / subsidiaries

- **CHECKMATE SOLUTIONS LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/05f6d12a-5038-5d10-a4cb-2ce002d7fa5b

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mrs Joanna Louise Calvert**. Human view: https://whiteintel.dev/entity/eeda4e44-74a8-5271-a263-6ce87ec45646 · Structured JSON: https://whiteintel.dev/api/public/dossier/eeda4e44-74a8-5271-a263-6ce87ec45646._

_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"._