---
title: "GROSVENOR STREET INVESTMENTS (MAYFAIR) LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2b455c7e-2f50-5496-a0a9-90e144fded5c
json: https://whiteintel.dev/api/public/dossier/2b455c7e-2f50-5496-a0a9-90e144fded5c
identifier: icij:icijol-10143514
jurisdiction: CH
risk: Medium
source: WhiteIntel corporate-ownership graph
---

# GROSVENOR STREET INVESTMENTS (MAYFAIR) LIMITED

**Type:** Company  
**Jurisdiction:** CH  
**Identifier:** `icij:icijol-10143514`  
**Risk level:** Medium  
**Canonical dossier:** https://whiteintel.dev/entity/2b455c7e-2f50-5496-a0a9-90e144fded5c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2b455c7e-2f50-5496-a0a9-90e144fded5c  

## Ownership & control

### Owners / controllers

- **Helm Trust Company Limited** (shareholder of) — https://whiteintel.dev/entity/8ce1860e-3f44-55e7-a6d7-43eed5f36dfe
- **Dundee Management Solutions Limited** (shareholder of) — https://whiteintel.dev/entity/9548a5c0-36b0-5fb1-bb16-258098ead321
- **MAYO SECRETARIES LIMITED** (shareholder of) — https://whiteintel.dev/entity/99414241-2c5d-55a9-bc95-b2c0c4782d0c
- **Grosvenor Street Holdings Limited** (shareholder of) — https://whiteintel.dev/entity/14c6d219-2ae1-5b87-b028-eec598721b7c
- **Lincoln Nominees Limited** (shareholder of) — https://whiteintel.dev/entity/a930c8cd-377b-5db1-bf9f-b752e10135a8

### UBO chain (walk to the ultimate owner)

A **5-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Exposure (derived from the ownership graph)

**5** owners upstream in this entity's ownership/control chain are flagged — a sanctions hit or a secrecy jurisdiction — an investigative lead by resolved identity, not a legal determination. The contributing parties and the hop-by-hop path unlock with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Provenance

- ICIJ Offshore Leaks — https://offshoreleaks.icij.org/nodes/10143514

## 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 **GROSVENOR STREET INVESTMENTS (MAYFAIR) LIMITED** — https://whiteintel.dev/entity/2b455c7e-2f50-5496-a0a9-90e144fded5c · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GROSVENOR STREET INVESTMENTS (MAYFAIR) LIMITED**. Human view: https://whiteintel.dev/entity/2b455c7e-2f50-5496-a0a9-90e144fded5c · Structured JSON: https://whiteintel.dev/api/public/dossier/2b455c7e-2f50-5496-a0a9-90e144fded5c._

_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"._