---
title: "Ms Mary-Elizabeth O'Neill — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9a726ce1-0f84-42eb-b804-cf254d46d2bc
json: https://whiteintel.dev/api/public/dossier/9a726ce1-0f84-42eb-b804-cf254d46d2bc
identifier: psc:QmPjsSXvGPtTD99fGDqLUhq-jec
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Ms Mary-Elizabeth O'Neill

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:QmPjsSXvGPtTD99fGDqLUhq-jec`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9a726ce1-0f84-42eb-b804-cf254d46d2bc  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9a726ce1-0f84-42eb-b804-cf254d46d2bc  

## Ownership & control

### Holdings / subsidiaries

- **AVALON COMPANY SERVICES LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/b52fef27-bc92-5f4c-8622-d0457d20f4df

## 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 **Ms Mary-Elizabeth O'Neill** — https://whiteintel.dev/entity/9a726ce1-0f84-42eb-b804-cf254d46d2bc · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Ms Mary-Elizabeth O'Neill**. Human view: https://whiteintel.dev/entity/9a726ce1-0f84-42eb-b804-cf254d46d2bc · Structured JSON: https://whiteintel.dev/api/public/dossier/9a726ce1-0f84-42eb-b804-cf254d46d2bc._

_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"._