---
title: "CONTROL AND HAZARDOUS SPECIALISTS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/7aef93af-87fa-5be2-883d-ae181553343d
json: https://whiteintel.dev/api/public/dossier/7aef93af-87fa-5be2-883d-ae181553343d
identifier: oo:GB-COH-11764533
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# CONTROL AND HAZARDOUS SPECIALISTS LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-11764533`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/7aef93af-87fa-5be2-883d-ae181553343d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/7aef93af-87fa-5be2-883d-ae181553343d  

## Ownership & control

### Owners / controllers

- **Mr Steven John Williams** (beneficial owner) — 100% — https://whiteintel.dev/entity/6222150c-2a35-516b-b415-f98e54245c2c
- **Mr Steven John Williams** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/1750e35f-939a-494c-ba6e-0757a5aa73f7

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

1. **Mr Steven John Williams** — beneficial owner 100% → *CONTROL AND HAZARDOUS SPECIALISTS LIMITED*
1. **Mr Steven John Williams** — beneficial owner 87.5% → *CONTROL AND HAZARDOUS SPECIALISTS LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `11764533`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-01-14
- **Registered office:** Sunnymead House, Grove Lane, Barry, Vale Of Glamorgan, CF62 6RE, United Kingdom
- **SIC:** 46140

### Officers

- WILLIAMS, Steven John — director · British · appointed 2019-01-14

### Beneficial owners (Persons with Significant Control)

- Mr Steven John Williams — 75–100% shares · individual PSC · United Kingdom — since 2019-01-14

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11764533
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11764533

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **CONTROL AND HAZARDOUS SPECIALISTS LIMITED**. Human view: https://whiteintel.dev/entity/7aef93af-87fa-5be2-883d-ae181553343d · Structured JSON: https://whiteintel.dev/api/public/dossier/7aef93af-87fa-5be2-883d-ae181553343d._

_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"._