---
title: "MARK STEVEN MASTROV — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2137fd42-86ef-5f02-a1a5-02ca66df22d5
json: https://whiteintel.dev/api/public/dossier/2137fd42-86ef-5f02-a1a5-02ca66df22d5
identifier: icij:icijol-56042004
jurisdiction: US
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# MARK STEVEN MASTROV

**Type:** Organization  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `icij:icijol-56042004`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/2137fd42-86ef-5f02-a1a5-02ca66df22d5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2137fd42-86ef-5f02-a1a5-02ca66df22d5  

## Ownership & control

### Holdings / subsidiaries

- **MARK MASTROV LTD** (director of) — https://whiteintel.dev/entity/09d9cbb5-b5b8-54bc-a350-40bbf646ddc1
- **MARK MASTROV LTD** (legal representative of) — https://whiteintel.dev/entity/09d9cbb5-b5b8-54bc-a350-40bbf646ddc1
- **MARK MASTROV LTD** (secretary of) — https://whiteintel.dev/entity/09d9cbb5-b5b8-54bc-a350-40bbf646ddc1
- **MARK MASTROV LTD** (shareholder of) — https://whiteintel.dev/entity/09d9cbb5-b5b8-54bc-a350-40bbf646ddc1

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/56042004

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MARK STEVEN MASTROV**. Human view: https://whiteintel.dev/entity/2137fd42-86ef-5f02-a1a5-02ca66df22d5 · Structured JSON: https://whiteintel.dev/api/public/dossier/2137fd42-86ef-5f02-a1a5-02ca66df22d5._

_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"._