---
title: "Mr Mark John Grainger — Ownership Dossier"
canonical: https://whiteintel.dev/entity/61c92bc1-e81f-584e-90c1-e14495a03434
json: https://whiteintel.dev/api/public/dossier/61c92bc1-e81f-584e-90c1-e14495a03434
identifier: oo-person:GB-COH-PER-11919012--OeNR_575CmgdYVNAOwjW_IAbGM
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Mark John Grainger

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `oo-person:GB-COH-PER-11919012--OeNR_575CmgdYVNAOwjW_IAbGM`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/61c92bc1-e81f-584e-90c1-e14495a03434  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/61c92bc1-e81f-584e-90c1-e14495a03434  

## Ownership & control

### Holdings / subsidiaries

- **SERENE BATHROOMS LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/ea9fbafe-2c00-560d-93ca-5931aa137d92

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Mark John Grainger**. Human view: https://whiteintel.dev/entity/61c92bc1-e81f-584e-90c1-e14495a03434 · Structured JSON: https://whiteintel.dev/api/public/dossier/61c92bc1-e81f-584e-90c1-e14495a03434._

_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"._