---
title: "TRANSOCEAN UK LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8fbc71db-c882-5d90-992a-c83a9b2fed2b
json: https://whiteintel.dev/api/public/dossier/8fbc71db-c882-5d90-992a-c83a9b2fed2b
identifier: oo:GB-COH-04017574
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# TRANSOCEAN UK LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-04017574`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8fbc71db-c882-5d90-992a-c83a9b2fed2b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8fbc71db-c882-5d90-992a-c83a9b2fed2b  

## Ownership & control

### Owners / controllers

- **Transocean Ltd.** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/1319c677-175a-41dc-a0f4-8475d66b3844

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

A **1-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.

## Company profile (live · UK Companies House)

- **Company number:** `04017574`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2000-06-20
- **Registered office:** 1 Chamberlain Square Cs, Birmingham, B3 3AX, United Kingdom
- **SIC:** 06100

### Officers

- GUNN, Craig Ritchie, Mr. — director · British · appointed 2026-06-30
- HAY, Alexis Anne — director · British · appointed 2022-11-30
- THOMA, Sandro — director · Swiss · appointed 2026-06-30
- BROWN, Eric Berton — secretary · American · appointed 2004-03-10 · resigned 2008-07-01
- JONES, Roger Shelley — secretary · British · appointed 2004-03-10 · resigned 2008-06-01
- CLIFFORD CHANCE SECRETARIES LIMITED — corporate secretary · appointed 2000-06-20 · resigned 2004-03-10
- [WFW LEGAL SERVICES LIMITED](https://whiteintel.dev/entity/c9f4a97c-da1b-5bae-973b-702c3c1a8a67) — corporate secretary · appointed 2008-07-04 · resigned 2019-10-15
- BOBILLIER, Arnaud Albert Yves — director · French · appointed 2005-10-12 · resigned 2007-10-23
- BOLKOW, Anne — director · German · appointed 2016-12-21 · resigned 2020-04-01
- BOYES, Katherine Angela — director · British · appointed 2025-09-02 · resigned 2026-06-30
- BROWN, Eric Berton — director · American · appointed 2000-11-06 · resigned 2005-10-12
- CAHUZAC, Jean Paul — director · French · appointed 2002-11-12 · resigned 2005-10-12
- CAMERON, Barry Nicholas — director · British · appointed 2008-07-01 · resigned 2012-02-08
- CAUTHEN, Gregory Lynn — director · American · appointed 2002-11-12 · resigned 2007-10-23
- CLYNE, Neil Kenneth — director · British · appointed 2015-05-15 · resigned 2016-04-29
- COLE, Jon Christopher — director · American · appointed 2000-11-06 · resigned 2002-07-16
- ELLIS, Judy — director · American · appointed 2006-07-07 · resigned 2007-10-23
- FORD, Andrew — director · British · appointed 2020-08-21 · resigned 2022-11-30
- HALKETT, Douglas William — director · British · appointed 2007-10-23 · resigned 2007-12-14
- HAYES, Stephen Lowry — director · American · appointed 2016-12-21 · resigned 2020-03-04

### Beneficial owners (Persons with Significant Control)

- [Transocean Ltd.](https://whiteintel.dev/entity/1319c677-175a-41dc-a0f4-8475d66b3844) — 75–100% shares · corporate PSC · Switzerland — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/04017574
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/04017574

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **TRANSOCEAN UK LIMITED**. Human view: https://whiteintel.dev/entity/8fbc71db-c882-5d90-992a-c83a9b2fed2b · Structured JSON: https://whiteintel.dev/api/public/dossier/8fbc71db-c882-5d90-992a-c83a9b2fed2b._

_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"._