---
title: "SIEGA LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/660ada60-820b-5c1e-a3cb-3950925eac55
json: https://whiteintel.dev/api/public/dossier/660ada60-820b-5c1e-a3cb-3950925eac55
identifier: oo:GB-COH-15106582
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SIEGA LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-15106582`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/660ada60-820b-5c1e-a3cb-3950925eac55  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/660ada60-820b-5c1e-a3cb-3950925eac55  

## Ownership & control

### Owners / controllers

- **Mr Jonathan James Cassells** (beneficial owner) — 100% — https://whiteintel.dev/entity/213cd553-8e78-536d-a8b8-e0c90f64c1db
- **Mr Jonathan James Cassells** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c3669a11-ddc2-4da3-892f-093f7e175104

### 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.

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/15106582
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/15106582

## 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 **SIEGA LTD** — https://whiteintel.dev/entity/660ada60-820b-5c1e-a3cb-3950925eac55 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SIEGA LTD**. Human view: https://whiteintel.dev/entity/660ada60-820b-5c1e-a3cb-3950925eac55 · Structured JSON: https://whiteintel.dev/api/public/dossier/660ada60-820b-5c1e-a3cb-3950925eac55._

_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"._