---
title: "SOUTHFIELD ENGINEERING & CALIBRATION SERVICES LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3aadde0d-eb4e-5aee-a368-39005de17c2b
json: https://whiteintel.dev/api/public/dossier/3aadde0d-eb4e-5aee-a368-39005de17c2b
identifier: oo:GB-COH-04355463
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SOUTHFIELD ENGINEERING & CALIBRATION SERVICES LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-04355463`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3aadde0d-eb4e-5aee-a368-39005de17c2b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3aadde0d-eb4e-5aee-a368-39005de17c2b  

## Ownership & control

### Owners / controllers

- **Mr Douglas James Phin** (beneficial owner) — 50% — https://whiteintel.dev/entity/616d3ac1-bc3c-5c59-be3d-d05faee09a79
- **Mr Alexander Edward Phin** (beneficial owner) — 75% — https://whiteintel.dev/entity/7135a2f4-26d9-5de6-add8-383ef4ec5368
- **Mr Alexander Edward Phin** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/a4f0c9c0-1b00-470c-992e-ef19e4f897c5
- **Mr Douglas James Phin** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/315d5c41-e1bc-490c-a2b1-e8c330aef52e

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

1. **Mr Douglas James Phin** — beneficial owner 50% → *SOUTHFIELD ENGINEERING & CALIBRATION SERVICES LIMITED*
1. **Mr Alexander Edward Phin** — beneficial owner 75% → *SOUTHFIELD ENGINEERING & CALIBRATION SERVICES LIMITED*
1. **Mr Alexander Edward Phin** — beneficial owner 62.5% → *SOUTHFIELD ENGINEERING & CALIBRATION SERVICES LIMITED*
1. **Mr Douglas James Phin** — beneficial owner 37.5% → *SOUTHFIELD ENGINEERING & CALIBRATION SERVICES LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `04355463`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2002-01-17
- **Registered office:** Unit 9 The Point Coach Road, Shireoaks, Worksop, Nottinghamshire, S81 3BW, United Kingdom
- **SIC:** 33140

### Officers

- PHIN, Douglas James — secretary · British · appointed 2007-12-31
- PHIN, Alexander Edward — director · British · appointed 2002-01-17
- PHIN, Douglas James — director · British · appointed 2005-06-22
- GREEN, Emma — secretary · British · appointed 2002-01-31 · resigned 2003-03-19
- KERRY, Carole — secretary · British · appointed 2003-03-19 · resigned 2007-12-31
- KERRY, Carole — secretary · British · appointed 2002-01-17 · resigned 2002-01-31
- BRIGHTON SECRETARY LTD — corporate nominee secretary · appointed 2002-01-17 · resigned 2002-01-18
- GREEN, Emma — director · British · appointed 2004-03-08 · resigned 2005-07-20
- GREEN, Emma — director · British · appointed 2002-01-31 · resigned 2002-10-21
- KELK, David — director · British · appointed 2002-02-19 · resigned 2003-12-04
- BRIGHTON DIRECTOR LTD — corporate nominee director · appointed 2002-01-17 · resigned 2002-01-18

### Beneficial owners (Persons with Significant Control)

- Mr Douglas James Phin — 25–50% shares · individual PSC · United Kingdom — since 2016-04-06
- Mr Alexander Edward Phin — 50–75% shares · individual PSC · United Kingdom — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/04355463

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SOUTHFIELD ENGINEERING & CALIBRATION SERVICES LIMITED**. Human view: https://whiteintel.dev/entity/3aadde0d-eb4e-5aee-a368-39005de17c2b · Structured JSON: https://whiteintel.dev/api/public/dossier/3aadde0d-eb4e-5aee-a368-39005de17c2b._

_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"._