---
title: "Leon Tsinberg — Ownership Dossier"
canonical: https://whiteintel.dev/entity/1813b57f-6199-58b6-bc28-ba23fcbd0231
json: https://whiteintel.dev/api/public/dossier/1813b57f-6199-58b6-bc28-ba23fcbd0231
identifier: icij:icijol-113594
jurisdiction: US
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Leon Tsinberg

**Type:** Organization  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `icij:icijol-113594`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/1813b57f-6199-58b6-bc28-ba23fcbd0231  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/1813b57f-6199-58b6-bc28-ba23fcbd0231  

## Ownership & control

### Holdings / subsidiaries

- **Tsinberg Family Trust** (beneficiary of) — https://whiteintel.dev/entity/c856e599-fc7d-5031-a790-c7993444b288
- **Tsinberg Family Trust** (protector of) — https://whiteintel.dev/entity/c856e599-fc7d-5031-a790-c7993444b288

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/113594

## 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 **Leon Tsinberg** — https://whiteintel.dev/entity/1813b57f-6199-58b6-bc28-ba23fcbd0231 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Leon Tsinberg**. Human view: https://whiteintel.dev/entity/1813b57f-6199-58b6-bc28-ba23fcbd0231 · Structured JSON: https://whiteintel.dev/api/public/dossier/1813b57f-6199-58b6-bc28-ba23fcbd0231._

_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"._