---
title: "MARESIA LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3e819a5e-ea99-4bd4-8a42-2ae196999c5c
json: https://whiteintel.dev/api/public/dossier/3e819a5e-ea99-4bd4-8a42-2ae196999c5c
identifier: gb-coh:16352896
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MARESIA LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `gb-coh:16352896`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3e819a5e-ea99-4bd4-8a42-2ae196999c5c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3e819a5e-ea99-4bd4-8a42-2ae196999c5c  

## Ownership & control

### Owners / controllers

- **Mr Joao Miguel De Sousa Santos Agostinho** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/34587d65-e626-4a7b-ba97-5d3c75d9836a

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

A **1-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:** `16352896`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2025-03-31
- **Registered office:** 128 City Road, London, EC1V 2NX, United Kingdom
- **SIC:** 64209

### Officers

- DE SOUSA SANTOS AGOSTINHO, Joao Miguel — director · Portuguese · appointed 2025-03-31

### Beneficial owners (Persons with Significant Control)

- Mr Joao Miguel De Sousa Santos Agostinho — 75–100% shares · individual PSC · United Kingdom — since 2025-03-31

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/16352896

## 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 **MARESIA LTD** — https://whiteintel.dev/entity/3e819a5e-ea99-4bd4-8a42-2ae196999c5c · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MARESIA LTD**. Human view: https://whiteintel.dev/entity/3e819a5e-ea99-4bd4-8a42-2ae196999c5c · Structured JSON: https://whiteintel.dev/api/public/dossier/3e819a5e-ea99-4bd4-8a42-2ae196999c5c._

_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"._