---
title: "J.A.M. ENGINEERING LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bb6bbce0-16c5-57c3-9ccc-97a2ed71259b
json: https://whiteintel.dev/api/public/dossier/bb6bbce0-16c5-57c3-9ccc-97a2ed71259b
identifier: oo:GB-COH-09509517
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# J.A.M. ENGINEERING LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-09509517`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/bb6bbce0-16c5-57c3-9ccc-97a2ed71259b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bb6bbce0-16c5-57c3-9ccc-97a2ed71259b  

## Ownership & control

### Owners / controllers

- **Mr James Grant Marriner** (beneficial owner) — 100% — https://whiteintel.dev/entity/2c92c6cb-cd77-5a53-9ce1-e89fa6a40d81
- **Mr James Grant Marriner** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/8e7c7767-4732-4e50-8c47-594f702b0ed7

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

A **2-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:** `09509517`
- **Status:** dissolved
- **Type:** ltd
- **Incorporated:** 2015-03-25
- **Registered office:** Stirling House Denny End Road, Waterbeach, Cambridge, Cambridgeshire, CB25 9PB, England
- **SIC:** 29201

### Officers

- MARRINER, James Grant — director · British · appointed 2015-03-25
- MARRINER, Amanda Louise — secretary · appointed 2015-03-25 · resigned 2015-05-21
- [BROCK & CO ACCOUNTING LTD](https://whiteintel.dev/entity/ef5fde57-9069-5a34-85b2-e1c40bcc4e6b) — corporate secretary · appointed 2015-07-01 · resigned 2020-01-13
- [JENNER ACCOUNTANTS LIMITED](https://whiteintel.dev/entity/fe78aeae-63e3-5540-9f95-313bf656ada9) — corporate secretary · appointed 2020-01-13 · resigned 2020-01-13
- JENNER COMPANY SECRETARIES LIMITED — corporate secretary · appointed 2020-01-13 · resigned 2021-12-15
- MARRINER, Amanda Louise — director · British · appointed 2015-05-21 · resigned 2020-07-25

### Beneficial owners (Persons with Significant Control)

- Mr James Grant Marriner — 75–100% shares · individual PSC · England — since 2017-03-20

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/09509517

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **J.A.M. ENGINEERING LTD**. Human view: https://whiteintel.dev/entity/bb6bbce0-16c5-57c3-9ccc-97a2ed71259b · Structured JSON: https://whiteintel.dev/api/public/dossier/bb6bbce0-16c5-57c3-9ccc-97a2ed71259b._

_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"._