---
title: "Mr. Serhiy Masteruk — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5fd8af20-b86f-5d2e-80cd-9204e6e1fab2
json: https://whiteintel.dev/api/public/dossier/5fd8af20-b86f-5d2e-80cd-9204e6e1fab2
identifier: oo-person:GB-COH-PER-15507822-IJ3misLCnVC4YLbdlxxC7jKYBK8
jurisdiction: UA
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr. Serhiy Masteruk

**Type:** Person  
**Jurisdiction:** UA  
**Identifier:** `oo-person:GB-COH-PER-15507822-IJ3misLCnVC4YLbdlxxC7jKYBK8`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5fd8af20-b86f-5d2e-80cd-9204e6e1fab2  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5fd8af20-b86f-5d2e-80cd-9204e6e1fab2  

## Ownership & control

### Holdings / subsidiaries

- **SEMAS SOLUTIONS LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/a363e501-9233-5abc-ac63-bca17a67c123

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr. Serhiy Masteruk**. Human view: https://whiteintel.dev/entity/5fd8af20-b86f-5d2e-80cd-9204e6e1fab2 · Structured JSON: https://whiteintel.dev/api/public/dossier/5fd8af20-b86f-5d2e-80cd-9204e6e1fab2._

_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"._