---
title: "Sigmond Kartau — Ownership Dossier"
canonical: https://whiteintel.dev/entity/43f8ea94-d977-5cf9-98d4-97628bc441d4
json: https://whiteintel.dev/api/public/dossier/43f8ea94-d977-5cf9-98d4-97628bc441d4
jurisdiction: EE
source: WhiteIntel corporate-ownership graph
---

# Sigmond Kartau

**Type:** Person  
**Jurisdiction:** EE  
**Canonical dossier:** https://whiteintel.dev/entity/43f8ea94-d977-5cf9-98d4-97628bc441d4  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/43f8ea94-d977-5cf9-98d4-97628bc441d4  

## Ownership & control

### Holdings / subsidiaries

- **Arantel Invest OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/4b7b057f-7498-58ab-877b-004b73dbd4fd
- **Grand Hotel OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/1101c1b9-558e-5a4b-a6af-89b62f3cb85a
- **Sigal Invest OÜ** (Juhatuse liige) — https://whiteintel.dev/entity/c9df9177-dab6-5a78-8a0c-31d5b0222896
- **Arantel Invest OÜ** (beneficial owner) — https://whiteintel.dev/entity/4b7b057f-7498-58ab-877b-004b73dbd4fd
- **Restoran Royal OÜ** (beneficial owner) — https://whiteintel.dev/entity/76fc6dca-e2c6-5b29-9d90-d4f5af971eb0
- **Rulomatik Eesti OÜ** (beneficial owner) — https://whiteintel.dev/entity/115cfeeb-db8f-5cd9-af6f-38302c0e78bc
- **Sigal Invest OÜ** (beneficial owner) — https://whiteintel.dev/entity/c9df9177-dab6-5a78-8a0c-31d5b0222896

## 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 **Sigmond Kartau** — https://whiteintel.dev/entity/43f8ea94-d977-5cf9-98d4-97628bc441d4 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Sigmond Kartau**. Human view: https://whiteintel.dev/entity/43f8ea94-d977-5cf9-98d4-97628bc441d4 · Structured JSON: https://whiteintel.dev/api/public/dossier/43f8ea94-d977-5cf9-98d4-97628bc441d4._

_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"._