---
title: "Sergey Mezentsev — Ownership Dossier"
canonical: https://whiteintel.dev/entity/28662162-ced3-580d-a9c0-96fe9ff2cdfc
json: https://whiteintel.dev/api/public/dossier/28662162-ced3-580d-a9c0-96fe9ff2cdfc
identifier: icij:icijol-12134894
jurisdiction: BY
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Sergey Mezentsev

**Type:** Organization  
**Jurisdiction:** BY  
**Identifier:** `icij:icijol-12134894`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/28662162-ced3-580d-a9c0-96fe9ff2cdfc  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/28662162-ced3-580d-a9c0-96fe9ff2cdfc  

## Ownership & control

### Holdings / subsidiaries

- **Ost Investments Ltd.** (shareholder of) — https://whiteintel.dev/entity/2162764e-4bc3-53cc-98c4-f81c68d54530

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/12134894

## 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 **Sergey Mezentsev** — https://whiteintel.dev/entity/28662162-ced3-580d-a9c0-96fe9ff2cdfc · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Sergey Mezentsev**. Human view: https://whiteintel.dev/entity/28662162-ced3-580d-a9c0-96fe9ff2cdfc · Structured JSON: https://whiteintel.dev/api/public/dossier/28662162-ced3-580d-a9c0-96fe9ff2cdfc._

_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"._