---
title: "Siim Niinsalu — Ownership Dossier"
canonical: https://whiteintel.dev/entity/255873ce-ec0a-5ec3-8b4f-986cfb79f0be
json: https://whiteintel.dev/api/public/dossier/255873ce-ec0a-5ec3-8b4f-986cfb79f0be
jurisdiction: EE
source: WhiteIntel corporate-ownership graph
---

# Siim Niinsalu

**Type:** Person  
**Jurisdiction:** EE  
**Canonical dossier:** https://whiteintel.dev/entity/255873ce-ec0a-5ec3-8b4f-986cfb79f0be  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/255873ce-ec0a-5ec3-8b4f-986cfb79f0be  

## Ownership & control

### Holdings / subsidiaries

- **Domusphere OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/1d1147af-f01a-5712-902e-744d15a660a1
- **ONL-Y OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/323ba0e3-8617-54bf-8890-7fc94efc7373
- **Seamless Consult OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/f31fe9c3-49d6-5711-8e7e-0ae442b145c3
- **Sidecar Invest OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/8daa2193-041c-51b8-a2af-e1e437a9b41c
- **Stonelle OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/6d9b0371-f8a4-5e90-bd5c-5b5d23a09dd7
- **Tallinn, Suur-Patarei tn 1 korteriühistu** (Juhatuse liige) — https://whiteintel.dev/entity/b243dad2-b60e-5bd4-86f7-52ddf289a628
- **Domusphere OÜ** (beneficial owner) — https://whiteintel.dev/entity/1d1147af-f01a-5712-902e-744d15a660a1
- **ONL-Y OÜ** (beneficial owner) — https://whiteintel.dev/entity/323ba0e3-8617-54bf-8890-7fc94efc7373
- **Seamless Consult OÜ** (beneficial owner) — https://whiteintel.dev/entity/f31fe9c3-49d6-5711-8e7e-0ae442b145c3
- **Sidecar Invest OÜ** (beneficial owner) — https://whiteintel.dev/entity/8daa2193-041c-51b8-a2af-e1e437a9b41c
- **Stonelle OÜ** (beneficial owner) — https://whiteintel.dev/entity/6d9b0371-f8a4-5e90-bd5c-5b5d23a09dd7

## 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 **Siim Niinsalu** — https://whiteintel.dev/entity/255873ce-ec0a-5ec3-8b4f-986cfb79f0be · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Siim Niinsalu**. Human view: https://whiteintel.dev/entity/255873ce-ec0a-5ec3-8b4f-986cfb79f0be · Structured JSON: https://whiteintel.dev/api/public/dossier/255873ce-ec0a-5ec3-8b4f-986cfb79f0be._

_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"._