---
title: "CHILTERN BLAST CLEANING LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/70acbbff-68b2-5c03-89ee-e44354f04765
json: https://whiteintel.dev/api/public/dossier/70acbbff-68b2-5c03-89ee-e44354f04765
identifier: oo:GB-COH-05526600
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# CHILTERN BLAST CLEANING LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-05526600`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/70acbbff-68b2-5c03-89ee-e44354f04765  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/70acbbff-68b2-5c03-89ee-e44354f04765  

## Ownership & control

### Owners / controllers

- **Mr Mark Brian Humphreys** (beneficial owner) — 50% — https://whiteintel.dev/entity/1f9d6cc6-b2c5-517e-a490-e8041ba7b685
- **Susan Jane Humphreys** (beneficial owner) — 50% — https://whiteintel.dev/entity/4c038cc6-0712-54cd-96a2-ec8497442bbb
- **Susan Jane Humphreys** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/e7e40ca3-5145-48d2-840b-691e743f2531
- **Mr Mark Brian Humphreys** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/089bc894-1eb4-4bf7-8642-c17ca0221667

### 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:** `05526600`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2005-08-03
- **Registered office:** Runways Farm, Upper Bourne End Lane, Hemel Hempstead, Hertfordshire, HP1 2RR
- **SIC:** 82990

### Officers

- HUMPHREYS, Susan Jane — secretary · British · appointed 2006-07-01
- HUMPHREYS, Lewis — director · British · appointed 2018-08-01
- HUMPHREYS, Mark Brian — director · British · appointed 2005-08-03
- HUMPHREYS, Susan Jane — director · British · appointed 2005-08-03
- BRADBURY, Jon — secretary · British · appointed 2005-08-03 · resigned 2006-07-01
- HCS SECRETARIAL LIMITED — corporate nominee secretary · appointed 2005-08-03 · resigned 2005-08-03

### Beneficial owners (Persons with Significant Control)

- Mr Mark Brian Humphreys — 25–50% shares · individual PSC · United Kingdom — since 2016-04-06
- Susan Jane Humphreys — 25–50% shares · individual PSC · United Kingdom — since 2016-04-06

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/05526600
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/05526600

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **CHILTERN BLAST CLEANING LIMITED**. Human view: https://whiteintel.dev/entity/70acbbff-68b2-5c03-89ee-e44354f04765 · Structured JSON: https://whiteintel.dev/api/public/dossier/70acbbff-68b2-5c03-89ee-e44354f04765._

_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"._