---
title: "XRIBA LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/87c57d88-b142-5b80-a4e1-90b39211c604
json: https://whiteintel.dev/api/public/dossier/87c57d88-b142-5b80-a4e1-90b39211c604
identifier: oo:GB-COH-11189328
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# XRIBA LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-11189328`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/87c57d88-b142-5b80-a4e1-90b39211c604  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/87c57d88-b142-5b80-a4e1-90b39211c604  

## Ownership & control

### Owners / controllers

- **Mr Gianluca Massini Rosati** (beneficial owner) — 100% — https://whiteintel.dev/entity/95d2f9fc-07ac-5897-b7c5-76c08e261cdb
- **Mr Federico Pacilli** (beneficial owner) — 100% — https://whiteintel.dev/entity/7f19173e-de32-5fa2-9ec0-4fbbd61c754f
- **Mr Gianluca Massini Rosati** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/e73d96ed-791f-4f82-b34f-f46d26e1feda
- **Mr Federico Pacilli** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/aac5a372-083c-47c6-ad10-47e182ac728e
- **PORTMAN GOVERNANCE LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/7b34992c-2a18-58cc-9a86-212cb561f480

### Holdings / subsidiaries

- **MASTROBOOKS LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/3632cf60-76d1-5cb5-b8f1-c612099bf31a
- **MASTROBOOKS LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/3632cf60-76d1-5cb5-b8f1-c612099bf31a

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

A **30-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:** `11189328`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2018-02-06
- **Registered office:** 19 Leyden Street, London, E1 7LE, United Kingdom
- **SIC:** 96090

### Officers

- MUTESCU, Maria Adriana — director · Romanian · appointed 2024-05-01
- DRAGON STRATEGY LTD — corporate secretary · appointed 2019-02-10 · resigned 2021-02-24
- SAPPHIRE INTERNATIONAL GROUP LIMITED — corporate secretary · appointed 2018-02-06 · resigned 2019-02-10
- MASSINI ROSATI, Gianluca — director · Italian · appointed 2021-08-03 · resigned 2021-09-01
- MASSINI ROSATI, Gianluca — director · Italian · appointed 2018-02-06 · resigned 2021-03-12
- PACILLI, Federico — director · Italian · appointed 2021-03-12 · resigned 2024-05-01

### Beneficial owners (Persons with Significant Control)

- [Portman Governance Ltd](https://whiteintel.dev/entity/7b34992c-2a18-58cc-9a86-212cb561f480) — 75–100% shares · corporate PSC · United Kingdom — since 2026-05-05
- Mr Federico Pacilli — 75–100% shares · individual PSC · United Kingdom — ceased 2024-05-31
- Mr Gianluca Massini Rosati — 75–100% shares · individual PSC · United Kingdom — ceased 2021-03-12

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11189328
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11189328

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **XRIBA LTD** — https://whiteintel.dev/entity/87c57d88-b142-5b80-a4e1-90b39211c604 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **XRIBA LTD**. Human view: https://whiteintel.dev/entity/87c57d88-b142-5b80-a4e1-90b39211c604 · Structured JSON: https://whiteintel.dev/api/public/dossier/87c57d88-b142-5b80-a4e1-90b39211c604._

_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"._