---
title: "A.J. BAYLISS PETROLEUM ENGINEERS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/942525fa-3143-563b-80ce-8c8efff4da86
json: https://whiteintel.dev/api/public/dossier/942525fa-3143-563b-80ce-8c8efff4da86
identifier: oo:GB-COH-04011841
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# A.J. BAYLISS PETROLEUM ENGINEERS LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-04011841`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/942525fa-3143-563b-80ce-8c8efff4da86  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/942525fa-3143-563b-80ce-8c8efff4da86  

## Cross-source identity

The same real-world entity, resolved across sources:

- **A.J. BAYLISS PETROLEUM ENGINEERS LTD** — GLEIF · `lei:213800C9H41MCTFERB07` — https://whiteintel.dev/entity/ba19c670-7623-58cb-8d4b-7519bcb6bdeb

## Ownership & control

### Owners / controllers

- **E & S ENVIRONMENTAL SERVICES LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/fec5ff6f-554b-5072-929a-c9a9ac6d5ddb
- **E & S ENVIRONMENTAL SERVICES LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/fec5ff6f-554b-5072-929a-c9a9ac6d5ddb

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

A **41-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:** `04011841`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2000-06-09
- **Registered office:** 80 Station Parade, Harrogate, North Yorkshire, HG1 1HQ
- **SIC:** 82990

### Officers

- BLAKEY, Anne Helen — secretary · appointed 2026-01-05
- BOYLE, Andrew Iain — director · British · appointed 2022-01-04
- CLARKE, Andrew — director · British · appointed 2011-07-06
- CLAY, Jason Christopher — director · British · appointed 2026-01-05
- MOWAT, Andrew Francis — director · British · appointed 2026-01-05
- PEDERSEN, Henrik Vorgod — director · Danish · appointed 2021-09-30
- BAYLISS, Andrew James — secretary · British · appointed 2000-08-17 · resigned 2011-07-06
- CALVERT, Mark — secretary · appointed 2012-03-01 · resigned 2018-04-10
- GIBSON, Geoffrey — secretary · appointed 2011-07-06 · resigned 2012-03-01
- SWIFT INCORPORATIONS LIMITED — corporate nominee secretary · appointed 2000-06-09 · resigned 2000-08-17
- BAYLISS, Andrew James — director · British · appointed 2000-08-17 · resigned 2017-06-28
- BAYLISS, Simon Peter — director · British · appointed 2000-08-17 · resigned 2017-06-28
- CALVERT, Mark Richard, Mr. — director · British · appointed 2011-07-06 · resigned 2018-02-20
- CLARKE, Eric William — director · British · appointed 2011-07-06 · resigned 2018-10-03
- COLLIER, James Philip — director · British · appointed 2017-06-28 · resigned 2018-02-20
- CONTRERAS, Robert Leonard — director · British · appointed 2018-09-03 · resigned 2024-08-31
- DUNN, Michael James — director · British · appointed 2018-11-19 · resigned 2021-09-30
- GIBSON, Geoff — director · British · appointed 2011-07-06 · resigned 2012-03-01
- OSBORNE, Ian Michael — director · British · appointed 2017-06-28 · resigned 2018-02-20
- INSTANT COMPANIES LIMITED — corporate nominee director · appointed 2000-06-09 · resigned 2000-08-17

### Beneficial owners (Persons with Significant Control)

- [E & S Environmental Services Limited](https://whiteintel.dev/entity/fec5ff6f-554b-5072-929a-c9a9ac6d5ddb) — 75–100% shares · corporate PSC · England — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/04011841
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/04011841

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **A.J. BAYLISS PETROLEUM ENGINEERS LTD**. Human view: https://whiteintel.dev/entity/942525fa-3143-563b-80ce-8c8efff4da86 · Structured JSON: https://whiteintel.dev/api/public/dossier/942525fa-3143-563b-80ce-8c8efff4da86._

_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"._