---
title: "Siim Kostabi — Ownership Dossier"
canonical: https://whiteintel.dev/entity/1f7fe0f6-7b0d-50df-8d34-be7cc6640da5
json: https://whiteintel.dev/api/public/dossier/1f7fe0f6-7b0d-50df-8d34-be7cc6640da5
jurisdiction: EE
source: WhiteIntel corporate-ownership graph
---

# Siim Kostabi

**Type:** Person  
**Jurisdiction:** EE  
**Canonical dossier:** https://whiteintel.dev/entity/1f7fe0f6-7b0d-50df-8d34-be7cc6640da5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/1f7fe0f6-7b0d-50df-8d34-be7cc6640da5  

## Ownership & control

### Holdings / subsidiaries

- **3DST OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/ef05b5f6-7f1c-5244-9f0b-a572963cfe31
- **3D Studio OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/f7c31de4-a358-50d9-b203-5bd7497819bc
- **MyPlant OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/94eda246-f092-556e-a773-46fa5ed3b31c
- **Pageloot OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/6bc778c0-e2b6-5cfc-b8fe-33cd70b087f2
- **QR-hi OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/73da855b-d023-50d1-87c1-c8fa0f31fad3
- **Quantum Nutrition OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/8b7def5c-d62a-5a1e-844c-65f058329b99
- **3DST OÜ** (beneficial owner) — https://whiteintel.dev/entity/ef05b5f6-7f1c-5244-9f0b-a572963cfe31
- **3D Studio OÜ** (beneficial owner) — https://whiteintel.dev/entity/f7c31de4-a358-50d9-b203-5bd7497819bc
- **MyPlant OÜ** (beneficial owner) — https://whiteintel.dev/entity/94eda246-f092-556e-a773-46fa5ed3b31c
- **Pageloot OÜ** (beneficial owner) — https://whiteintel.dev/entity/6bc778c0-e2b6-5cfc-b8fe-33cd70b087f2
- **QR-hi OÜ** (beneficial owner) — https://whiteintel.dev/entity/73da855b-d023-50d1-87c1-c8fa0f31fad3
- **Quantum Nutrition OÜ** (beneficial owner) — https://whiteintel.dev/entity/8b7def5c-d62a-5a1e-844c-65f058329b99

## 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 Kostabi** — https://whiteintel.dev/entity/1f7fe0f6-7b0d-50df-8d34-be7cc6640da5 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Siim Kostabi**. Human view: https://whiteintel.dev/entity/1f7fe0f6-7b0d-50df-8d34-be7cc6640da5 · Structured JSON: https://whiteintel.dev/api/public/dossier/1f7fe0f6-7b0d-50df-8d34-be7cc6640da5._

_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"._