---
title: "PHOSPHONICS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ce2ee4c4-bdc1-5430-92c4-3faa8a3db026
json: https://whiteintel.dev/api/public/dossier/ce2ee4c4-bdc1-5430-92c4-3faa8a3db026
identifier: oo:GB-COH-04829817
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PHOSPHONICS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-04829817`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ce2ee4c4-bdc1-5430-92c4-3faa8a3db026  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ce2ee4c4-bdc1-5430-92c4-3faa8a3db026  

## Ownership & control

### Owners / controllers

- **PHOSPHONICS HOLDINGS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/3deb6f00-ff66-5eaf-a9dd-6dcebfa193db
- **Mr Ian Michael Laing** (beneficial owner) — 50% — https://whiteintel.dev/entity/912e03e4-0936-528f-bc9d-1465c8872ed6
- **Mr Nicholas John Cross** (beneficial owner) — 50% — https://whiteintel.dev/entity/bd929b11-6f3a-5245-bb68-5ef648f870d3
- **BIOSYNTH HOLDINGS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/e975efbb-db4d-51a6-902e-96fcfaa64290
- **PHOSPHONICS HOLDINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/3deb6f00-ff66-5eaf-a9dd-6dcebfa193db
- **BIOSYNTH HOLDINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/e975efbb-db4d-51a6-902e-96fcfaa64290
- **Mr Ian Michael Laing** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/46dfa124-5ff3-4b18-ad08-a2f2c910318f
- **Mr Nicholas John Cross** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/92379881-5d25-465d-bc48-2d54e84bed4f

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

A **25-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:** `04829817`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2003-07-11
- **Registered office:** Unit 7 Downsview Road, Wantage, OX12 9FA, England
- **SIC:** 20590, 72190

### Officers

- BRYCE, James — director · British · appointed 2017-01-03
- EASTWICK-FIELD, Vanessa Mary, Dr — director · British · appointed 2017-01-03
- CROSS, Nicholas John — secretary · British · appointed 2006-07-25 · resigned 2017-01-03
- DAWES, Philip Jonathan — secretary · appointed 2017-01-03 · resigned 2019-05-14
- LAING, Alastair Robert — secretary · British · appointed 2005-02-23 · resigned 2005-10-18
- WILSON, John Robert Howe, Dr — secretary · British · appointed 2003-07-11 · resigned 2005-02-23
- OCS CORPORATE SECRETARIES LIMITED — corporate nominee secretary · appointed 2003-07-11 · resigned 2003-07-11
- ASTLES, David Philip — director · British · appointed 2005-04-05 · resigned 2013-04-30
- BELL, Linda, Dr — director · British · appointed 2013-05-01 · resigned 2017-01-03
- CROSS, Nicholas John — director · British · appointed 2005-02-23 · resigned 2017-01-03
- DAWES, Philip Jonathan — director · British · appointed 2017-01-03 · resigned 2019-05-14
- GIBSON, Victoria, Dr — director · British · appointed 2017-01-03 · resigned 2021-10-14
- GOURLAY, Richard Ian — director · British · appointed 2013-04-24 · resigned 2017-01-03
- LAING, Ian Michael — director · British · appointed 2005-02-23 · resigned 2013-04-24
- MORGAN, David William — director · British · appointed 2011-07-01 · resigned 2017-01-03
- SIMS, Malcolm Leslie — director · British · appointed 2003-07-11 · resigned 2006-07-25
- SULLIVAN, Alice Caroline, Dr — director · Irish · appointed 2003-07-11 · resigned 2012-10-19
- WILCOCK, Iain Charles Stephen — director · British · appointed 2010-01-08 · resigned 2017-01-03
- WILSON, John Robert Howe, Dr — director · British · appointed 2003-07-11 · resigned 2011-06-01
- OCS DIRECTORS LIMITED — corporate nominee director · appointed 2003-07-11 · resigned 2003-07-11

### Beneficial owners (Persons with Significant Control)

- [Phosphonics Holdings Limited](https://whiteintel.dev/entity/3deb6f00-ff66-5eaf-a9dd-6dcebfa193db) — 75–100% shares · corporate PSC · England — since 2019-05-14
- [Carbosynth Holdings Limited](https://whiteintel.dev/entity/e975efbb-db4d-51a6-902e-96fcfaa64290) — 75–100% shares · corporate PSC · England — ceased 2019-05-14
- Mr Ian Michael Laing — 25–50% shares · individual PSC · England — ceased 2017-01-03
- Mr Nicholas John Cross — 25–50% shares · individual PSC · England — ceased 2017-01-03

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/04829817
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/04829817

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PHOSPHONICS LIMITED**. Human view: https://whiteintel.dev/entity/ce2ee4c4-bdc1-5430-92c4-3faa8a3db026 · Structured JSON: https://whiteintel.dev/api/public/dossier/ce2ee4c4-bdc1-5430-92c4-3faa8a3db026._

_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"._