---
title: "SIGMA PRECISION ENGINEERING LTD. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/0a0e8a8a-78d4-516b-9e51-bb247ebb2ccd
json: https://whiteintel.dev/api/public/dossier/0a0e8a8a-78d4-516b-9e51-bb247ebb2ccd
identifier: oo:GB-COH-04524325
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SIGMA PRECISION ENGINEERING LTD.

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-04524325`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/0a0e8a8a-78d4-516b-9e51-bb247ebb2ccd  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/0a0e8a8a-78d4-516b-9e51-bb247ebb2ccd  

## Ownership & control

### Owners / controllers

- **Mr Andrew Peter Copestick** (beneficial owner) — 50% — https://whiteintel.dev/entity/c3456191-5ffd-5669-b539-ecc19a83fff8
- **Caroline Nora Copestick** (beneficial owner) — 50% — https://whiteintel.dev/entity/4db73f75-1bf7-5c07-9026-9eac0797d74e
- **Mr Brett Anthony Phaneuf** (beneficial owner) — 100% — https://whiteintel.dev/entity/fb30b841-901b-58f0-86f8-7673c0842d1e
- **M SUBS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c24cb4a1-bc8e-5e64-8c8b-626ca519e2e1
- **Mr Brett Anthony Phaneuf** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/995f9b85-bdf5-4b28-8dc1-ac4dd2ebf5a4
- **Mr Andrew Peter Copestick** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/5c5a7cc2-fb70-4274-b0d6-2439ce721f0e
- **Caroline Nora Copestick** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f6030e32-2baf-47ae-b845-4701dddc74ca

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

1. **Mr Andrew Peter Copestick** — beneficial owner 50% → *SIGMA PRECISION ENGINEERING LTD.*
1. **Caroline Nora Copestick** — beneficial owner 50% → *SIGMA PRECISION ENGINEERING LTD.*
1. **Mr Brett Anthony Phaneuf** — beneficial owner 100% → *SIGMA PRECISION ENGINEERING LTD.*
1. **M SUBS LIMITED** — beneficial owner 87.5% → *SIGMA PRECISION ENGINEERING LTD.*
1. **Mr Brett Anthony Phaneuf** — beneficial owner 87.5% → *SIGMA PRECISION ENGINEERING LTD.*
1. **Mr Andrew Peter Copestick** — beneficial owner 37.5% → *SIGMA PRECISION ENGINEERING LTD.*
1. **Caroline Nora Copestick** — beneficial owner 37.5% → *SIGMA PRECISION ENGINEERING LTD.*
2. **Mr Gregory Miner Cook** — beneficial owner 87.5% → *M SUBS LIMITED*
2. **Submergence Group Llc** — beneficial owner 87.5% → *M SUBS LIMITED*
2. **Submergence Group Llc** — beneficial owner 87.5% → *M SUBS LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `04524325`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2002-09-02
- **Registered office:** 42 Sisna Park Road, Plymouth, Devon, PL6 7FH, United Kingdom
- **SIC:** 28490

### Officers

- LAMBERT, Paul Raymond — director · British · appointed 2026-01-01
- COPESTICK, Caroline Nora — secretary · British · appointed 2002-09-02 · resigned 2024-03-04
- SMITH, Darren — secretary · British · appointed 2002-09-02 · resigned 2002-09-02
- BROWN, James — director · British · appointed 2002-09-02 · resigned 2002-09-02
- COPESTICK, Andrew Peter — director · British · appointed 2002-09-02 · resigned 2024-03-04
- PHANEUF, Brett Anthony — director · American · appointed 2024-03-04 · resigned 2025-02-28
- WYATT, Laura Samantha — director · British · appointed 2025-03-01 · resigned 2025-12-31

### Beneficial owners (Persons with Significant Control)

- [M Subs Limited](https://whiteintel.dev/entity/c24cb4a1-bc8e-5e64-8c8b-626ca519e2e1) — 75–100% shares · corporate PSC · England — since 2024-03-04
- Mr Brett Anthony Phaneuf — 75–100% shares · individual PSC — ceased 2024-03-04
- Mr Andrew Peter Copestick — 25–50% shares · individual PSC · United Kingdom — ceased 2024-03-04
- Caroline Nora Copestick — 25–50% shares · individual PSC · United Kingdom — ceased 2024-03-04

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/04524325
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/04524325

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SIGMA PRECISION ENGINEERING LTD.**. Human view: https://whiteintel.dev/entity/0a0e8a8a-78d4-516b-9e51-bb247ebb2ccd · Structured JSON: https://whiteintel.dev/api/public/dossier/0a0e8a8a-78d4-516b-9e51-bb247ebb2ccd._

_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"._