---
title: "MACARTHYS LABORATORIES LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/808792e2-ba67-58e7-b32b-03e49b9e7229
json: https://whiteintel.dev/api/public/dossier/808792e2-ba67-58e7-b32b-03e49b9e7229
identifier: oo:GB-COH-00620024
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MACARTHYS LABORATORIES LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-00620024`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/808792e2-ba67-58e7-b32b-03e49b9e7229  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/808792e2-ba67-58e7-b32b-03e49b9e7229  

## Cross-source identity

The same real-world entity, resolved across sources:

- **MACARTHYS LABORATORIES LIMITED** — GLEIF · `lei:213800TD251XDJNHLZ80` — https://whiteintel.dev/entity/6e32e5f8-8205-5505-864b-3d0417669dc7
- **Macarthys Laboratories Limited** — source · `gb-coh:620024` — https://whiteintel.dev/entity/af48f189-d6b7-473f-bd6b-21f3e8a80b53

## Ownership & control

### Owners / controllers

- **ORPHEA LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/778f04de-400a-5c68-b743-5127129f310e
- **ORPHEA LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/778f04de-400a-5c68-b743-5127129f310e
- **Martindale Pharma (Holdings 1) Limited** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/055cee93-d680-4b5a-903d-b6d3cb0a5cb2

### Holdings / subsidiaries

- **VIRIDIAN PHARMA LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/9b79cf26-5f04-5e9d-9473-41579ab65cdc
- **MARTINDALE PHARMACEUTICALS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/c822d741-e9e0-5846-893b-b696711cf0b3
- **AURUM PHARMACEUTICALS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/0faabc0b-3944-56a4-8b59-bbbfb9ece283
- **MARTINDALE PHARMACEUTICALS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c822d741-e9e0-5846-893b-b696711cf0b3

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

A **5-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:** `00620024`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1959-01-30
- **Registered office:** Bampton Road, Harold Hill, Romford, Essex, RM3 8UG
- **SIC:** 21100

### Officers

- RUYANT, Foucauld — secretary · appointed 2024-09-30
- DE ULTRA DE SOUSA BARCELOS, Bruno — director · Portuguese · appointed 2023-01-17
- LASSERRE, Xavier Pierre Christian — director · French · appointed 2023-06-26
- MEHRAI, Alexander — director · British · appointed 2025-01-31
- RUYANT, Foucauld — director · French · appointed 2024-09-30
- DAVIES, John Richard Bridge — secretary · British · appointed 1997-03-14 · resigned 1997-08-08
- EARNSHAW, Jeremy Waring — secretary · British · appointed 2000-12-11 · resigned 2005-09-30
- EBRAHIMJEE, Mahmood — secretary · British · resigned 1997-03-14
- KNIGHT, Anthony — secretary · British · appointed 2007-07-13 · resigned 2010-06-30
- LOFTHOUSE, Stephen David — secretary · British · appointed 2006-03-06 · resigned 2006-11-03
- PINCHIN, Nicholas John — secretary · British · appointed 1997-08-08 · resigned 2000-12-11
- RILEY, Rodney Hardwicke — secretary · British · resigned 1992-05-20
- WEST, David William — secretary · English · appointed 2006-11-03 · resigned 2007-07-12
- EVERSECRETARY LIMITED — corporate secretary · appointed 2005-09-30 · resigned 2006-03-06
- AMBROSE, Linda Anne — director · British · appointed 1994-04-01 · resigned 1994-04-04
- AMBROSE, Linda Anne — director · British · appointed 1993-04-01 · resigned 1993-03-08
- AXTEN, Godfrey Clive — director · British · appointed 2001-02-12 · resigned 2002-01-07
- BOVOLENTA, Andrea — director · Italian · appointed 2024-03-01 · resigned 2024-06-05
- BRYANT, Derek — director · British · appointed 1994-08-01 · resigned 2002-03-31
- BUCKELL, Stephen William — director · British · resigned 1997-05-30

### Beneficial owners (Persons with Significant Control)

- [Orphea Limited](https://whiteintel.dev/entity/778f04de-400a-5c68-b743-5127129f310e) — 75–100% shares · corporate PSC · United Kingdom — since 2017-12-21
- [Martindale Pharma (Holdings 1) Limited](https://whiteintel.dev/entity/055cee93-d680-4b5a-903d-b6d3cb0a5cb2) — 75–100% shares · corporate PSC · England — ceased 2017-12-21

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/00620024
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/00620024

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MACARTHYS LABORATORIES LIMITED**. Human view: https://whiteintel.dev/entity/808792e2-ba67-58e7-b32b-03e49b9e7229 · Structured JSON: https://whiteintel.dev/api/public/dossier/808792e2-ba67-58e7-b32b-03e49b9e7229._

_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"._