---
title: "Mrs Marcia Marie Marczynski — Ownership Dossier"
canonical: https://whiteintel.dev/entity/53aea406-2433-5778-b002-cf6773282c7d
json: https://whiteintel.dev/api/public/dossier/53aea406-2433-5778-b002-cf6773282c7d
identifier: oo-person:GB-COH-PER-10855594-M_9bT9U5U3KIiMI65zOsLVwsxHA
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mrs Marcia Marie Marczynski

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-10855594-M_9bT9U5U3KIiMI65zOsLVwsxHA`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/53aea406-2433-5778-b002-cf6773282c7d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/53aea406-2433-5778-b002-cf6773282c7d  

## Ownership & control

### Holdings / subsidiaries

- **J D WILLIAMS DEVELOPMENTS LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/337c8822-8e35-5fc4-8151-0ea9467ae606

## Provenance

- OpenOwnership — https://www.openownership.org

## 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 **Mrs Marcia Marie Marczynski** — https://whiteintel.dev/entity/53aea406-2433-5778-b002-cf6773282c7d · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mrs Marcia Marie Marczynski**. Human view: https://whiteintel.dev/entity/53aea406-2433-5778-b002-cf6773282c7d · Structured JSON: https://whiteintel.dev/api/public/dossier/53aea406-2433-5778-b002-cf6773282c7d._

_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"._