---
title: "Sergei Semjonov — Ownership Dossier"
canonical: https://whiteintel.dev/entity/802e8df3-5462-52a5-9344-3accf046da8c
json: https://whiteintel.dev/api/public/dossier/802e8df3-5462-52a5-9344-3accf046da8c
jurisdiction: EE
source: WhiteIntel corporate-ownership graph
---

# Sergei Semjonov

**Type:** Person  
**Jurisdiction:** EE  
**Canonical dossier:** https://whiteintel.dev/entity/802e8df3-5462-52a5-9344-3accf046da8c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/802e8df3-5462-52a5-9344-3accf046da8c  

## Ownership & control

### Holdings / subsidiaries

- **FIRST PROMO OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/f2778697-2a72-596a-8a29-bc97fdad65b6
- **Kriit Reklaamiagentuur OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/4de91478-a026-51a4-8df6-b6594b490c0e
- **Rikki Tikki OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/2ef0622d-6237-5b7b-94aa-1d0f83c3f841
- **SK Engineering OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/539bf852-cca1-57f7-81bd-eb24aa207427
- **top advisors OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/4dce198d-7eac-57fc-ae2c-7773a39c3491
- **top advisors OÜ** (beneficial owner) — https://whiteintel.dev/entity/4dce198d-7eac-57fc-ae2c-7773a39c3491
- **ÜHINENUD TURUD OÜ** (beneficial owner) — https://whiteintel.dev/entity/b2267ed6-142d-5100-b307-d7494b069805

## Provenance

- estonia_ariregister — https://avaandmed.ariregister.rik.ee/

## 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 **Sergei Semjonov** — https://whiteintel.dev/entity/802e8df3-5462-52a5-9344-3accf046da8c · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Sergei Semjonov**. Human view: https://whiteintel.dev/entity/802e8df3-5462-52a5-9344-3accf046da8c · Structured JSON: https://whiteintel.dev/api/public/dossier/802e8df3-5462-52a5-9344-3accf046da8c._

_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"._