---
title: "Sakari Kalervo Määttänen — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bec35c2f-0b69-557f-839e-e10e6b0f14fa
json: https://whiteintel.dev/api/public/dossier/bec35c2f-0b69-557f-839e-e10e6b0f14fa
jurisdiction: EE
source: WhiteIntel corporate-ownership graph
---

# Sakari Kalervo Määttänen

**Type:** Person  
**Jurisdiction:** EE  
**Canonical dossier:** https://whiteintel.dev/entity/bec35c2f-0b69-557f-839e-e10e6b0f14fa  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bec35c2f-0b69-557f-839e-e10e6b0f14fa  

## Ownership & control

### Holdings / subsidiaries

- **Massi Raha OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/d697d1aa-36db-5852-89fb-fdf7cfc6b7cd
- **Massiaru Põllumajanduslik Osaühing** (beneficial owner) — https://whiteintel.dev/entity/dcfa9c01-d1ab-5feb-b0cc-c300cdb06699
- **Massi Raha OÜ** (beneficial owner) — https://whiteintel.dev/entity/d697d1aa-36db-5852-89fb-fdf7cfc6b7cd
- **Osaühing Aminolte** (beneficial owner) — https://whiteintel.dev/entity/ab06f4fe-267c-5a4f-8362-e8fc06d143a9
- **osaühing MASSIARU MAAARENDUS** (beneficial owner) — https://whiteintel.dev/entity/bd59aff2-87db-5493-925d-8dd2233650ad

## 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 **Sakari Kalervo Määttänen** — https://whiteintel.dev/entity/bec35c2f-0b69-557f-839e-e10e6b0f14fa · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Sakari Kalervo Määttänen**. Human view: https://whiteintel.dev/entity/bec35c2f-0b69-557f-839e-e10e6b0f14fa · Structured JSON: https://whiteintel.dev/api/public/dossier/bec35c2f-0b69-557f-839e-e10e6b0f14fa._

_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"._