---
title: "Ardo Siemer — Ownership Dossier"
canonical: https://whiteintel.dev/entity/74be6c97-d16f-54a8-9734-d1401d6cc2df
json: https://whiteintel.dev/api/public/dossier/74be6c97-d16f-54a8-9734-d1401d6cc2df
jurisdiction: EE
source: WhiteIntel corporate-ownership graph
---

# Ardo Siemer

**Type:** Person  
**Jurisdiction:** EE  
**Canonical dossier:** https://whiteintel.dev/entity/74be6c97-d16f-54a8-9734-d1401d6cc2df  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/74be6c97-d16f-54a8-9734-d1401d6cc2df  

## Ownership & control

### Holdings / subsidiaries

- **Energosystems OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/36a3e729-1aab-5293-8979-aa5c67e365ea
- **Helpsapp OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/6591bfe5-e786-51fd-8cd9-59165166090e
- **Tallinn, Herne tn 20 // Magasini tn 18 korteriühistu** (Juhatuse liige) — https://whiteintel.dev/entity/ccf49877-3629-5f51-9d17-028ab9d1f46e
- **Tehniliste Konsultantide Liit** (Juhatuse liige) — https://whiteintel.dev/entity/51b06333-ff9d-5bfb-b73c-6f6140d40338
- **Helpsapp OÜ** (beneficial owner) — https://whiteintel.dev/entity/6591bfe5-e786-51fd-8cd9-59165166090e
- **Tehniliste Konsultantide Liit** (beneficial owner) — https://whiteintel.dev/entity/51b06333-ff9d-5bfb-b73c-6f6140d40338

## 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 **Ardo Siemer** — https://whiteintel.dev/entity/74be6c97-d16f-54a8-9734-d1401d6cc2df · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Ardo Siemer**. Human view: https://whiteintel.dev/entity/74be6c97-d16f-54a8-9734-d1401d6cc2df · Structured JSON: https://whiteintel.dev/api/public/dossier/74be6c97-d16f-54a8-9734-d1401d6cc2df._

_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"._