---
title: "AMATRIX GRANTHAM PROPCO LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f3badd68-467d-5d1d-b82a-a254131da495
json: https://whiteintel.dev/api/public/dossier/f3badd68-467d-5d1d-b82a-a254131da495
identifier: oo:GB-COH-11418043
jurisdiction: CA
risk: Low
source: WhiteIntel corporate-ownership graph
---

# AMATRIX GRANTHAM PROPCO LIMITED

**Type:** Company  
**Jurisdiction:** CA  
**Identifier:** `oo:GB-COH-11418043`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f3badd68-467d-5d1d-b82a-a254131da495  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f3badd68-467d-5d1d-b82a-a254131da495  

## Ownership & control

### Owners / controllers

- **AMATRIX GRANTHAM PROPCO LIMITED** (beneficial owner) — https://whiteintel.dev/entity/f3badd68-467d-5d1d-b82a-a254131da495
- **Mr Andrew James Spencer Sewards** (beneficial owner) — 50% — https://whiteintel.dev/entity/c41429df-58ab-544c-92cf-2dd93a6517a8
- **Mr James Ridings** (beneficial owner) — 50% — https://whiteintel.dev/entity/77b4469d-4627-5df8-b817-3f3f891a13e4
- **Mr John Graeme Barker** (beneficial owner) — 50% — https://whiteintel.dev/entity/d04cd2c7-5875-5a42-9bcd-f0487def68e8
- **Brookfield Corporation** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/0838e828-0d0a-4b78-81da-173b55414630
- **Brookfield Asset Management Limited** (beneficial owner) — https://whiteintel.dev/entity/0eda61a9-2c80-4521-91dc-fb583bcec85d
- **Mr Andrew James Spencer Sewards** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/dc1a378a-ad32-4216-84a1-0cce5c921ddc
- **Mr James Ridings** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/b2eb84e8-acf0-477a-8836-1926209da941
- **Mr John Graeme Barker** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/a2db9a2c-944f-42ff-ac56-f598b20043b2

### UBO chain (walk to the ultimate owner)

A **9-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11418043
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11418043

## 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 **AMATRIX GRANTHAM PROPCO LIMITED** — https://whiteintel.dev/entity/f3badd68-467d-5d1d-b82a-a254131da495 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **AMATRIX GRANTHAM PROPCO LIMITED**. Human view: https://whiteintel.dev/entity/f3badd68-467d-5d1d-b82a-a254131da495 · Structured JSON: https://whiteintel.dev/api/public/dossier/f3badd68-467d-5d1d-b82a-a254131da495._

_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"._