---
title: "Transocean Ltd. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/c702da0a-4e80-5aeb-9bae-ce12b5266d99
json: https://whiteintel.dev/api/public/dossier/c702da0a-4e80-5aeb-9bae-ce12b5266d99
identifier: sec:0001451505
jurisdiction: US
risk: High
source: WhiteIntel corporate-ownership graph
---

# Transocean Ltd.

**Type:** Company  
**Jurisdiction:** [US](https://whiteintel.dev/jurisdictions/us)  
**Identifier:** `sec:0001451505`  
**Risk level:** High  
**Canonical dossier:** https://whiteintel.dev/entity/c702da0a-4e80-5aeb-9bae-ce12b5266d99  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/c702da0a-4e80-5aeb-9bae-ce12b5266d99  

## Ownership & control

### Owners / controllers

- **PERESTROIKA (CYPRUS) LTD** (tenpercentowner) — https://whiteintel.dev/entity/e7bd5395-0719-5ca6-82db-3f521a5a03d2
- **MOHN FREDERIK WILHELM** (tenpercentowner) — https://whiteintel.dev/entity/68da137a-f7dd-5eb9-8126-d24f71909cc0
- **PERESTROIKA** (tenpercentowner) — https://whiteintel.dev/entity/cdfc6342-2bf6-5701-a2b2-2a295085d07e

### Holdings / subsidiaries

- **Nauticus Robotics, Inc.** (tenpercentowner) — https://whiteintel.dev/entity/b16f1010-61a7-503b-b20b-084a3e2fa79a
- **Nauticus Robotics, Inc.** (other) — https://whiteintel.dev/entity/b16f1010-61a7-503b-b20b-084a3e2fa79a

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

A **84-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.

## 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 **Transocean Ltd.** — https://whiteintel.dev/entity/c702da0a-4e80-5aeb-9bae-ce12b5266d99 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Transocean Ltd.**. Human view: https://whiteintel.dev/entity/c702da0a-4e80-5aeb-9bae-ce12b5266d99 · Structured JSON: https://whiteintel.dev/api/public/dossier/c702da0a-4e80-5aeb-9bae-ce12b5266d99._

_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"._