---
title: "CHEMICAL TREATMENT SERVICES (IRELAND) LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8f52c412-5eeb-4c67-8040-c9b2da56ee2d
json: https://whiteintel.dev/api/public/dossier/8f52c412-5eeb-4c67-8040-c9b2da56ee2d
identifier: gb-coh:NI017799
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# CHEMICAL TREATMENT SERVICES (IRELAND) LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `gb-coh:NI017799`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8f52c412-5eeb-4c67-8040-c9b2da56ee2d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8f52c412-5eeb-4c67-8040-c9b2da56ee2d  

## Ownership & control

### Owners / controllers

- **HSL COMPLIANCE HOLDINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/5986440b-5f30-52a4-81fa-9b2ac687fb87
- **Mr Robin Fergusson** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/460e9b93-ac44-44c4-9d50-e72ec74969ec
- **Mrs Patricia Fergusson** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/481d817b-f72d-4e4e-bc2a-21b70936f477

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

A **29-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:** `NI017799`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1984-09-14
- **Registered office:** Harbour Court, Cts House, 9 Heron Road, Belfast, BT3 9HB, Northern Ireland
- **SIC:** 39000

### Officers

- FERGUSSON, Jamie Robert — director · British · appointed 2013-02-18
- FERGUSSON, Stuart Philip — director · British · appointed 2013-02-18
- HARTLEY, Benjamin Paul — director · British · appointed 2023-09-14
- HARTLEY, Gavin Michael — director · British · appointed 2023-09-14
- NICHOLLS, Andrew Paul — director · British · appointed 2023-09-14
- FERGUSON, Patricia D — secretary · British · appointed 1984-09-14 · resigned 2023-09-14
- BOLTER, Andrew Christopher — director · British · appointed 2025-06-13 · resigned 2025-07-31
- FERGUSON, Patricia D — director · British · appointed 1984-09-14 · resigned 2023-09-14
- FERGUSSON, Robert Charles James — director · British · appointed 2019-05-01 · resigned 2025-12-20
- FERGUSSON, Timothy Charles — director · British · appointed 2013-02-18 · resigned 2018-09-19
- FLEMING, Donald — director · Irish · appointed 1984-09-14 · resigned 2012-08-29
- HORTON, Paul John — director · British · appointed 2023-09-14 · resigned 2025-06-13
- VANCE, Suzanne — director · British · appointed 2013-02-18 · resigned 2013-08-31

### Beneficial owners (Persons with Significant Control)

- [Hsl Compliance Holdings Limited](https://whiteintel.dev/entity/5986440b-5f30-52a4-81fa-9b2ac687fb87) — 75–100% shares · corporate PSC · United Kingdom — since 2023-09-14
- Mr Robin Fergusson — 25–50% shares · individual PSC · Northern Ireland — ceased 2023-09-14
- Mrs Patricia Fergusson — 25–50% shares · individual PSC · Northern Ireland — ceased 2023-09-14

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/NI017799

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **CHEMICAL TREATMENT SERVICES (IRELAND) LIMITED**. Human view: https://whiteintel.dev/entity/8f52c412-5eeb-4c67-8040-c9b2da56ee2d · Structured JSON: https://whiteintel.dev/api/public/dossier/8f52c412-5eeb-4c67-8040-c9b2da56ee2d._

_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"._