On the Record · Seadrill
Seadrill subsidiaries, as it lists them
The subsidiaries Seadrill lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| Seadrill Angola, Lda. | Angola |
| Seabras Holdings GmbH | Austria |
| Seabras Rig Holding GmbH | Austria |
| North Atlantic Elara Ltd. | Bermuda |
| Seadrill Aquarius Ltd. | Bermuda |
| North Atlantic Phoenix Ltd. | Bermuda |
| Scorpion Drilling Ltd. | Bermuda |
| Scorpion Freedom Ltd. | Bermuda |
| Scorpion International Ltd. | Bermuda |
| Scorpion Rigs Ltd. | Bermuda |
| Scorpion Vigilant Ltd. | Bermuda |
| Seadrill Abu Dhabi Operations Limited | Bermuda |
| Seadrill Brunei Ltd. | Bermuda |
| Seadrill Carina Ltd. | Bermuda |
| Seadrill Common Holdings Ltd. | Bermuda |
| Seadrill Contracting Ltd | Bermuda |
| Seadrill Dione Ltd. | Bermuda |
| Seadrill Eclipse Ltd. | Bermuda |
| Seadrill Equatorial Guinea Ltd. | Bermuda |
| Seadrill Finance Limited | Bermuda |
| Seadrill Freedom Ltd. | Bermuda |
| Seadrill Gemini Ltd. | Bermuda |
| Seadrill Ghana Operations Ltd. | Bermuda |
| Seadrill Global Services Ltd. | Bermuda |
| Seadrill Hyperion Ltd. | Bermuda |
| Seadrill Jack-Up Holding Ltd. | Bermuda |
| Seadrill Jupiter Ltd. | Bermuda |
| Seadrill Leo Ltd. | Bermuda |
| Seadrill Limited | Bermuda |
| Seadrill Management AME Ltd. | Bermuda |
| Seadrill Mimas Ltd. | Bermuda |
| Seadrill North Atlantic Holdings Limited | Bermuda |
| Seadrill Norway Operations Ltd. | Bermuda |
| Seadrill Polaris Ltd. | Bermuda |
| Seadrill Proteus Ltd. | Bermuda |
| Seadrill Rhea Ltd. | Bermuda |
| Seadrill Rig Holding Company Limited | Bermuda |
| Seadrill Saturn Ltd. | Bermuda |
| Seadrill Sevan Holdings Limited | Bermuda |
| Seadrill Telesto Ltd. | Bermuda |
| Seadrill Tellus Ltd. | Bermuda |
| Seadrill Tethys Ltd. | Bermuda |
| Seadrill Titan Ltd. | Bermuda |
| Seadrill Umbriel Ltd. | Bermuda |
| Seadrill Vencedor Ltd. | Bermuda |
| Scorpion Servicos Offshore Ltda. | Brazil |
| Seadrill Serviços de Petróleo Ltda. | Brazil |
| Sevan Marine Servicos de Perfuracao Ltda. | Brazil |
| Seadrill Servicos de Perfuracao Ltda. | Brazil |
| Seadrill Canada Operations ULC | Canada |
| Seadrill Newfoundland Operations Ltd. | Canada |
| Seadrill Deepwater Drillship Ltd. | Cayman Islands |
| Seadrill JV Ghana Limited Ltd. | Ghana |
| Seadrill Far East Limited | Hong Kong |
| Seadrill International Limited | Hong Kong |
| Seadrill Neptune Hungary Kft. | Hungary |
| Sevan Louisiana Hungary Kft. | Hungary |
| Seadrill Auriga Hungary Kft. | Hungary |
| Seadrill Hungary Kft. | Hungary |
| Seadrill Rig Holdco Kft. | Hungary |
| Seadrill Vela Hungary Kft. | Hungary |
| Seadrill Ireland Limited | Ireland |
| Aquadrill Labuan Ltd. | Labuan |
| Seadrill China Operations Ltd. S.a.r.l. | Luxembourg |
| Aquadrill Malaysia Sdn Bhd | Malaysia |
| Seadrill Labuan Ltd | Malaysia |
| Seadrill Offshore Malaysia Sdn. Bhd. | Malaysia |
| Aquadrill Capricorn Holdings LLC | Marshall Islands |
| Aquadrill LLC | Marshall Islands |
| Aquadrill Operating GP LLC | Marshall Islands |
| Sea Dragon de Mexico S de R.L. de CV | Mexico |
| Seadrill Operations de Mexico S de R.L. de CV | Mexico |
| Seadrill Jack Up II B.V. | Netherlands |
| Seadrill Saudi I B.V. | Netherlands |
| Seadrill Saudi II B.V. | Netherlands |
| Seadrill Jack-Ups Nigeria Limited | Nigeria |
| Seadrill Mobile Units (Nigeria) Limited | Nigeria |
| Seadrill Offshore Nigeria Limited | Nigeria |
| Seadrill Europe Management AS | Norway |
| Seadrill Norway Crew AS | Norway |
| Seadrill Offshore AS | Norway |
| Odfjell Drilling Services Company, Limited | Saudi Arabia |
| Seadrill Saudi Limited Company | Saudi Arabia |
| Seadrill Castor Pte. Ltd. | Singapore |
| Seadrill Deepwater Units Pte. Ltd. | Singapore |
| Seadrill Holdings Singapore Pte. Ltd. | Singapore |
| Seadrill Management (S) Pte Ltd | Singapore |
| Seadrill Pegasus (S) Pte. Ltd. | Singapore |
| Sevan Drilling Rig II Pte Ltd | Singapore |
| Sevan Drilling Rig IX Pte Ltd | Singapore |
| Sevan Drilling Rig V Pte Ltd | Singapore |
| Seadrill Switzerland GmbH | Switzerland |
| Seadrill International Resourcing DMCC | United Arab Emirates |
| Seadrill Management Ltd. | United Kingdom |
| Seadrill Treasury UK Limited | United Kingdom |
| Seadrill UK Ltd | United Kingdom |
| Seadrill UK Operations Ltd | United Kingdom |
| Sevan Drilling Limited | United Kingdom |
| Aquadrill Gulf Operations Auriga LLC | United States |
| Aquadrill Gulf Operations Vela LLC | United States |
| Aquadrill US Gulf LLC | United States |
| Seadrill Americas, Inc | United States |
| Seadrill Gulf Operations Neptune LLC | United States |
| Sevan Drilling North America LLC | United States |
From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from Seadrill’s annual reports (10-K for 2025, 10-K for 2024, 20-F for 2023) and the financial data it files with the SEC, as of 2026-02-26. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.