---
title: "Sebastien Hayoz — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8c17fa4b-11d7-5976-97ba-d09534ef7cde
json: https://whiteintel.dev/api/public/dossier/8c17fa4b-11d7-5976-97ba-d09534ef7cde
identifier: oo-person:GB-COH-PER-11542613-hO3fRAZez3shyZvs0JmE_PzoXLk
jurisdiction: CH
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Sebastien Hayoz

**Type:** Person  
**Jurisdiction:** CH  
**Identifier:** `oo-person:GB-COH-PER-11542613-hO3fRAZez3shyZvs0JmE_PzoXLk`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8c17fa4b-11d7-5976-97ba-d09534ef7cde  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8c17fa4b-11d7-5976-97ba-d09534ef7cde  

## Ownership & control

### Holdings / subsidiaries

- **SERIF INVESTMENT UK LIMITED** (beneficial owner) — https://whiteintel.dev/entity/09d8c848-bc94-53e0-a142-42553bf2db20

## 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 **Sebastien Hayoz** — https://whiteintel.dev/entity/8c17fa4b-11d7-5976-97ba-d09534ef7cde · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Sebastien Hayoz**. Human view: https://whiteintel.dev/entity/8c17fa4b-11d7-5976-97ba-d09534ef7cde · Structured JSON: https://whiteintel.dev/api/public/dossier/8c17fa4b-11d7-5976-97ba-d09534ef7cde._

_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"._