---
title: "Mr Stefan Eric Edward Calvert — Ownership Dossier"
canonical: https://whiteintel.dev/entity/c5eb832a-bdad-5477-8a1d-47d747db60a4
json: https://whiteintel.dev/api/public/dossier/c5eb832a-bdad-5477-8a1d-47d747db60a4
identifier: oo-person:GB-COH-PER-15215888-GpHGGdwQhwnMSAEDMa4ifjwMUyg
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Stefan Eric Edward Calvert

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-15215888-GpHGGdwQhwnMSAEDMa4ifjwMUyg`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/c5eb832a-bdad-5477-8a1d-47d747db60a4  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/c5eb832a-bdad-5477-8a1d-47d747db60a4  

## Ownership & control

### Holdings / subsidiaries

- **CALVERT PETROPHYSICS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/34aae7a0-d877-5fba-bfbb-68a4281b94bc

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Stefan Eric Edward Calvert**. Human view: https://whiteintel.dev/entity/c5eb832a-bdad-5477-8a1d-47d747db60a4 · Structured JSON: https://whiteintel.dev/api/public/dossier/c5eb832a-bdad-5477-8a1d-47d747db60a4._

_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"._