---
title: "PROTAVIO LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/40f983ff-41d8-52d2-a620-b53a74cffb6b
json: https://whiteintel.dev/api/public/dossier/40f983ff-41d8-52d2-a620-b53a74cffb6b
identifier: oo:GB-COH-10026360
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PROTAVIO LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-10026360`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/40f983ff-41d8-52d2-a620-b53a74cffb6b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/40f983ff-41d8-52d2-a620-b53a74cffb6b  

## Ownership & control

### Owners / controllers

- **Mr Leonidas Alexopoulos** (beneficial owner) — 50% — https://whiteintel.dev/entity/fb121fee-c55a-5f3f-9417-cc34da42f0da
- **Ms Sofia Stamatatou** (beneficial owner) — 75% — https://whiteintel.dev/entity/7c1e1fd8-213b-52be-97fa-710fab13a28c
- **Mr Leonidas Alexopoulos** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/ee5655c5-41c6-416c-b485-7964f98fb382
- **Ms Sofia Stamatatou** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/6699ad6f-1505-461c-a20c-90ca0fd2a3dd

### 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:** `10026360`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2016-02-25
- **Registered office:** The Bradfield Centre, 184 Cambridge Science Park, Cambridge, CB4 0GA, England
- **SIC:** 72110

### Officers

- STAMATATOU, Sofia — secretary · appointed 2016-02-25
- LEE, Marc Geoffrey, Mr. — director · English · appointed 2022-06-07
- STAMATATOU, Sofia — director · Greek · appointed 2016-02-25

### Beneficial owners (Persons with Significant Control)

- Mr Leonidas Alexopoulos — 25–50% shares · individual PSC · United Kingdom — since 2016-04-06
- Ms Sofia Stamatatou — 50–75% shares · individual PSC · United Kingdom — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/10026360
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/10026360

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PROTAVIO LTD**. Human view: https://whiteintel.dev/entity/40f983ff-41d8-52d2-a620-b53a74cffb6b · Structured JSON: https://whiteintel.dev/api/public/dossier/40f983ff-41d8-52d2-a620-b53a74cffb6b._

_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"._