---
title: "PLEXUS FIRE & SECURITY LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bbcb2c47-268b-50dc-a8c6-e80af834df46
json: https://whiteintel.dev/api/public/dossier/bbcb2c47-268b-50dc-a8c6-e80af834df46
identifier: oo:GB-COH-10138592
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PLEXUS FIRE & SECURITY LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-10138592`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/bbcb2c47-268b-50dc-a8c6-e80af834df46  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bbcb2c47-268b-50dc-a8c6-e80af834df46  

## Ownership & control

### Owners / controllers

- **Mr Ross Adams** (beneficial owner) — 50% — https://whiteintel.dev/entity/c64b38d8-53c1-5c1d-83e5-5dfcb0dc148e
- **Mr Simon John Phillips** (beneficial owner) — 50% — https://whiteintel.dev/entity/9de31241-da91-5e30-911e-f297a5562b55
- **Mr Marcus Anthony Elphick** (beneficial owner) — 50% — https://whiteintel.dev/entity/29afb030-bd2f-5745-8ea1-bef3591604c1
- **PLEXUS FIRE & SECURITY LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/bbcb2c47-268b-50dc-a8c6-e80af834df46
- **Mr Marcus Anthony Elphick** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/65fc151d-4b67-499c-a79a-20478d74b135
- **Mr Simon John Phillips** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/877137aa-457a-4d71-a714-ef9f476a786d
- **Mr Ross Adams** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/5d85e31a-d4a3-450c-9191-0b01e972085c

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

1. **Mr Ross Adams** — beneficial owner 50% → *PLEXUS FIRE & SECURITY LIMITED*
1. **Mr Simon John Phillips** — beneficial owner 50% → *PLEXUS FIRE & SECURITY LIMITED*
1. **Mr Marcus Anthony Elphick** — beneficial owner 50% → *PLEXUS FIRE & SECURITY LIMITED*
1. **PLEXUS FIRE & SECURITY LIMITED** — beneficial owner 50% → *PLEXUS FIRE & SECURITY LIMITED*
1. **Mr Marcus Anthony Elphick** — beneficial owner 37.5% → *PLEXUS FIRE & SECURITY LIMITED*
1. **Mr Simon John Phillips** — beneficial owner 37.5% → *PLEXUS FIRE & SECURITY LIMITED*
1. **Mr Ross Adams** — beneficial owner 37.5% → *PLEXUS FIRE & SECURITY LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `10138592`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2016-04-21
- **Registered office:** Picton House, Bailey Court,, Fforestfach,, Swansea., SA5 4DE, United Kingdom
- **SIC:** 80200

### Officers

- ADAMS, Ross — secretary · appointed 2018-01-16
- ADAMS, Ross — director · British · appointed 2016-04-21
- PHILLIPS, Simon John — director · Welsh · appointed 2018-01-16
- ELPHICK, Marcus Anthony — director · British · appointed 2016-09-01 · resigned 2023-09-18

### Beneficial owners (Persons with Significant Control)

- Ram 2032 Limited — 75–100% shares · corporate PSC · Wales — since 2021-03-01
- Mr Marcus Anthony Elphick — 25–50% shares · individual PSC · United Kingdom — ceased 2023-08-31
- Mr Simon John Phillips — 25–50% shares · individual PSC · United Kingdom — ceased 2021-03-01
- Mr Ross Adams — 25–50% shares · individual PSC · United Kingdom — ceased 2023-12-31

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/10138592
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/10138592

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PLEXUS FIRE & SECURITY LIMITED**. Human view: https://whiteintel.dev/entity/bbcb2c47-268b-50dc-a8c6-e80af834df46 · Structured JSON: https://whiteintel.dev/api/public/dossier/bbcb2c47-268b-50dc-a8c6-e80af834df46._

_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"._