---
title: "MRX HOLDINGS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/abadbc90-ebbe-42a9-b34e-54919039740f
json: https://whiteintel.dev/api/public/dossier/abadbc90-ebbe-42a9-b34e-54919039740f
identifier: gb-coh:16652089
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MRX HOLDINGS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `gb-coh:16652089`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/abadbc90-ebbe-42a9-b34e-54919039740f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/abadbc90-ebbe-42a9-b34e-54919039740f  

## Ownership & control

### Owners / controllers

- **Mr Robin Frank Simpson** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/e17b45a3-f7ee-45b9-bef6-fd44512202f0
- **Mr William Stuart Falconer Casselton** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/3919eb4e-a978-403e-a307-cb737cc06de7
- **Mr Allan George Rienecker** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/1295617f-b2f8-44e6-bbe1-4b3a66ae69c1

### Holdings / subsidiaries

- **MR PARTNERS LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/6c9e1051-762f-45a4-bd79-e1e0ea00a6f9

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

A **3-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.

## Company profile (live · UK Companies House)

- **Company number:** `16652089`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2025-08-15
- **Registered office:** Albany House, Claremont Lane, Esher, Surrey, KT10 9FQ, United Kingdom
- **SIC:** 70229

### Officers

- CASSELTON, William Stuart Falconer — director · British · appointed 2025-08-15
- RIENECKER, Allan George — director · British · appointed 2025-08-15
- SIMPSON, Robin Frank — director · British · appointed 2025-08-15

### Beneficial owners (Persons with Significant Control)

- Mr Robin Frank Simpson — 25–50% shares · individual PSC · United Kingdom — since 2025-08-15
- Mr William Stuart Falconer Casselton — 25–50% shares · individual PSC · United Kingdom — since 2025-08-15
- Mr Allan George Rienecker — 25–50% shares · individual PSC · United Kingdom — since 2025-08-15

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/16652089

## 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 **MRX HOLDINGS LIMITED** — https://whiteintel.dev/entity/abadbc90-ebbe-42a9-b34e-54919039740f · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MRX HOLDINGS LIMITED**. Human view: https://whiteintel.dev/entity/abadbc90-ebbe-42a9-b34e-54919039740f · Structured JSON: https://whiteintel.dev/api/public/dossier/abadbc90-ebbe-42a9-b34e-54919039740f._

_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"._