---
title: "GUARDIAN FIRE & SECURITY SERVICES LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bf7828ed-2d3a-57bd-8253-d4157defc014
json: https://whiteintel.dev/api/public/dossier/bf7828ed-2d3a-57bd-8253-d4157defc014
identifier: oo:GB-COH-SC712440
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# GUARDIAN FIRE & SECURITY SERVICES LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-SC712440`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/bf7828ed-2d3a-57bd-8253-d4157defc014  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bf7828ed-2d3a-57bd-8253-d4157defc014  

## Ownership & control

### Owners / controllers

- **Mr Struan Craig Chalmers** (beneficial owner) — 50% — https://whiteintel.dev/entity/59120283-964b-54d8-9b7f-cf928b04f639
- **Mr Jamie Robertson** (beneficial owner) — 100% — https://whiteintel.dev/entity/5070b8a9-e1c8-569f-92fd-1b5728cc1c18
- **Mr Struan Craig Chalmers** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/0a7f22c4-ac97-4090-837e-27dbf78417a6
- **Mr Jamie Robertson** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/b727bc09-9960-4106-8568-59967be12375

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

A **4-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:** `SC712440`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2021-10-18
- **Registered office:** Northlea Beechhill Place, Coupar Angus, Blairgowrie, PH13 9BA, Scotland
- **SIC:** 43210

### Officers

- ROBERTSON, Jamie — director · Scottish · appointed 2021-10-18
- CHALMERS, Struan Craig — director · Scottish · appointed 2021-10-18 · resigned 2021-10-27

### Beneficial owners (Persons with Significant Control)

- Mr Jamie Robertson — 75–100% shares · individual PSC · Scotland — since 2021-10-18
- Mr Struan Craig Chalmers — 25–50% shares · individual PSC · Scotland — ceased 2021-10-27

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/SC712440
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/SC712440

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GUARDIAN FIRE & SECURITY SERVICES LTD**. Human view: https://whiteintel.dev/entity/bf7828ed-2d3a-57bd-8253-d4157defc014 · Structured JSON: https://whiteintel.dev/api/public/dossier/bf7828ed-2d3a-57bd-8253-d4157defc014._

_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"._