---
title: "SECURITY & ELECTRICAL INSTALLATIONS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/47bf1fbf-d970-5412-aaa7-df6157d1a3ba
json: https://whiteintel.dev/api/public/dossier/47bf1fbf-d970-5412-aaa7-df6157d1a3ba
identifier: oo:GB-COH-03646001
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SECURITY & ELECTRICAL INSTALLATIONS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-03646001`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/47bf1fbf-d970-5412-aaa7-df6157d1a3ba  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/47bf1fbf-d970-5412-aaa7-df6157d1a3ba  

## Ownership & control

### Owners / controllers

- **SEI GROUP LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/99fd8945-d9ee-5b5a-bbf9-fe0812ba2ce3
- **Paul Mercer** (beneficial owner) — 50% — https://whiteintel.dev/entity/871cb3b6-9cd0-5ebd-81da-e0adfe9c0d2c
- **SEI GROUP LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/99fd8945-d9ee-5b5a-bbf9-fe0812ba2ce3
- **Paul Mercer** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/06ccd267-7374-4db0-b44d-f15742ea3223

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

A **8-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:** `03646001`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1998-10-07
- **Registered office:** Trafford Buildings, East Street, Leyland Preston, Lancashire, PR25 3NJ
- **SIC:** 43210

### Officers

- CLARKE, Sharon — director · British · appointed 2021-03-01
- HEARLE, Ian Edward — director · British · appointed 2015-04-01
- OGDEN, Bradley James — director · British · appointed 2015-04-01
- OGDEN, Callon — director · British · appointed 2021-03-01
- MERCER, Paul — secretary · British · appointed 1998-10-22 · resigned 2021-03-01
- HIGHSTONE SECRETARIES LIMITED — corporate nominee secretary · appointed 1998-10-07 · resigned 1998-10-22
- MERCER, Paul Richard — director · British · appointed 1998-10-22 · resigned 2021-03-01
- OGDEN, Alan Paul — director · British · appointed 1998-10-22 · resigned 2021-03-01
- HIGHSTONE DIRECTORS LIMITED — corporate nominee director · appointed 1998-10-07 · resigned 1998-10-22

### Beneficial owners (Persons with Significant Control)

- [Sei Group Limited](https://whiteintel.dev/entity/99fd8945-d9ee-5b5a-bbf9-fe0812ba2ce3) — 75–100% shares · corporate PSC · England — since 2021-03-01
- Paul Mercer — 25–50% shares · individual PSC — ceased 2021-03-01

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03646001
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03646001

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SECURITY & ELECTRICAL INSTALLATIONS LIMITED**. Human view: https://whiteintel.dev/entity/47bf1fbf-d970-5412-aaa7-df6157d1a3ba · Structured JSON: https://whiteintel.dev/api/public/dossier/47bf1fbf-d970-5412-aaa7-df6157d1a3ba._

_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"._