---
title: "ADVANCED MATERIALS ADVISORS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3fe3d1b3-e58e-5df2-b271-ab9111825032
json: https://whiteintel.dev/api/public/dossier/3fe3d1b3-e58e-5df2-b271-ab9111825032
identifier: oo:GB-COH-15735758
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ADVANCED MATERIALS ADVISORS LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-15735758`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3fe3d1b3-e58e-5df2-b271-ab9111825032  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3fe3d1b3-e58e-5df2-b271-ab9111825032  

## Ownership & control

### Owners / controllers

- **Mrs Ana Clara Segon Barni** (beneficial owner) — 50% — https://whiteintel.dev/entity/52b5649f-4a34-5788-8f33-96a18b968f23
- **Mr John Walker** (beneficial owner) — 50% — https://whiteintel.dev/entity/6e0f88ef-f880-52e7-a8f4-a4382ac675d4
- **Mrs Ana Clara Segon Barni** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/34223b3e-a2ea-48b3-be1f-b50f800ca69c
- **Mr John Walker** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/7da36aea-3aaf-46f6-abb2-95b5fb7aa78e

### 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:** `15735758`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2024-05-22
- **Registered office:** 9 Tregarne Terrace, St. Austell, PL25 4DD, England
- **SIC:** 70229

## Financials (Companies House accounts)

| Figure | 2026-05-31 |
|---|---:|
| Net assets | £6,064 |
| Shareholder funds | £6,064 |
| Current assets | £11,206 |
| Employees | 0 |

_Latest filed period. Full 2-year history unlocks with a paid dossier — https://whiteintel.dev/pricing. As filed at Companies House._

### Officers

- SEGON BARNI, Ana Clara — director · Italian · appointed 2024-05-22
- WALKER, John — director · British · appointed 2024-05-22

### Beneficial owners (Persons with Significant Control)

- Mrs Ana Clara Segon Barni — 25–50% shares · individual PSC · England — since 2024-05-22
- Mr John Walker — 25–50% shares · individual PSC · England — since 2024-05-22

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/15735758
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/15735758
- companies_house_accounts — https://find-and-update.company-information.service.gov.uk/company/15735758/filing-history

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ADVANCED MATERIALS ADVISORS LTD**. Human view: https://whiteintel.dev/entity/3fe3d1b3-e58e-5df2-b271-ab9111825032 · Structured JSON: https://whiteintel.dev/api/public/dossier/3fe3d1b3-e58e-5df2-b271-ab9111825032._

_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"._