---
title: "AMSTECH GROUP (UK) LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/15f2ce97-e277-54f3-8a29-8e8301d2f5eb
json: https://whiteintel.dev/api/public/dossier/15f2ce97-e277-54f3-8a29-8e8301d2f5eb
identifier: oo:GB-COH-05843035
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# AMSTECH GROUP (UK) LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-05843035`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/15f2ce97-e277-54f3-8a29-8e8301d2f5eb  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/15f2ce97-e277-54f3-8a29-8e8301d2f5eb  

## Ownership & control

### Owners / controllers

- **Mr Mark Anthony O'Neill** (beneficial owner) — 100% — https://whiteintel.dev/entity/8af5d238-4972-5d75-9726-76c77d441406
- **Mrs Aida O'Neill** (beneficial owner) — 100% — https://whiteintel.dev/entity/cebc31d0-029e-53fd-926d-d057297e086b
- **Mrs Aida O'Neill** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/b9dfd8cd-0a79-4be2-a0db-11dc13792fce
- **Mr Mark Anthony O'Neill** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/64f3e2b9-f14a-431c-bbe5-f3c559b27c8f

### Holdings / subsidiaries

- **AMSTECH ASBESTOS REMOVALS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/30b14d5a-233a-5cb0-b1c2-8ce6cde53d1b
- **AMSTECH INSPECTIONS & TESTING LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/d3155a88-ec84-5359-9476-ba7fce27f527
- **AMSTECH INSULATIONS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/51c251f4-e6d0-5499-a875-bd2538a7bad8
- **AMSTECH INSULATIONS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/51c251f4-e6d0-5499-a875-bd2538a7bad8

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

1. **Mr Mark Anthony O'Neill** — beneficial owner 100% → *AMSTECH GROUP (UK) LIMITED*
1. **Mrs Aida O'Neill** — beneficial owner 100% → *AMSTECH GROUP (UK) LIMITED*
1. **Mrs Aida O'Neill** — beneficial owner 87.5% → *AMSTECH GROUP (UK) LIMITED*
1. **Mr Mark Anthony O'Neill** — beneficial owner 87.5% → *AMSTECH GROUP (UK) LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `05843035`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2006-06-12
- **Registered office:** 30-34 North Street, Hailsham, East Sussex, BN27 1DW
- **SIC:** 64209

### Officers

- O'NEILL, Mark Anthony — secretary · British · appointed 2006-06-12
- O'NEILL, Aida — director · British · appointed 2006-06-12
- O'NEILL, Mark Anthony — director · British · appointed 2006-06-12
- WATERLOW SECRETARIES LIMITED — corporate nominee secretary · appointed 2006-06-12 · resigned 2006-06-12
- CARNEY, Robert David — director · British · appointed 2014-10-01 · resigned 2016-04-11
- FORD, Sara Jane — director · British · appointed 2006-09-04 · resigned 2006-12-29
- WATERLOW NOMINEES LIMITED — corporate nominee director · appointed 2006-06-12 · resigned 2006-06-12

### Beneficial owners (Persons with Significant Control)

- Mr Mark Anthony O'Neill — 75–100% shares · individual PSC · England — since 2016-04-06
- Mrs Aida O'Neill — 75–100% shares · individual PSC — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/05843035
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/05843035

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **AMSTECH GROUP (UK) LIMITED**. Human view: https://whiteintel.dev/entity/15f2ce97-e277-54f3-8a29-8e8301d2f5eb · Structured JSON: https://whiteintel.dev/api/public/dossier/15f2ce97-e277-54f3-8a29-8e8301d2f5eb._

_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"._