On the Record · Hornbeck Offshore Services
Hornbeck Offshore Services subsidiaries, as it lists them
The subsidiaries Hornbeck Offshore Services lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| AES-EOT Equipment Holdings, LLC | Louisiana |
| Alliance Energy Services, LLC | Louisiana |
| Alliance Group of Louisiana L.L.C. | Louisiana |
| Alliance Industry Holdings, LLC | Louisiana |
| Alliance LB Dallas Holdings, LLC | Louisiana |
| Alliance LB Miami Holdings, LLC | Louisiana |
| Alliance Liftboats, LLC | Louisiana |
| Alliance Maritime Holdings, LLC | Louisiana |
| Alliance Offshore, LLC | Louisiana |
| Alliance Special Ventures Holdings, LLC | Louisiana |
| Alliance-Triton GOM Holdings, LLC | Delaware |
| Alliance Vessel Leasing, LLC | Louisiana |
| Cal Dive I-Title XI, Inc. | Texas |
| Deepwater Abandonment Alternatives, Inc. | Texas |
| Dickson Road Investments, LLC | Louisiana |
| Energy Resource Technology (U.K.) Limited | Scotland |
| ERT Camelot Limited | Scotland |
| Explorer DSV Holdings, LLC | Louisiana |
| Heavy Lift Holdings, LLC | Louisiana |
| Hedron Holdings, LLC | Louisiana |
| Helix Alliance Decom, LLC | Delaware |
| Helix do Brasil Serviços de Petróleo Ltda. | Brazil |
| Helix Energy Solutions (U.K.) Limited | Scotland |
| Helix International Group Holdings (U.K.) Limited | Scotland |
| Helix Offshore Crewing Services Limited | Scotland |
| Helix Offshore Crewing Services PTE. Ltd. | Singapore |
| Helix Offshore Energy Services (Australia) Pty Ltd. | Australia |
| Helix Offshore Holdings Ltd. | Delaware |
| Helix Offshore International Holdings S.à r.l. | Grand Duchy of Luxembourg |
| Helix Offshore International, Inc. | Texas |
| Helix Offshore Ltd. | Cayman Islands |
| Helix Offshore Services A.S. | Norway |
| Helix Offshore Services Limited | Scotland |
| Helix Oil & Gas (U.K.) Limited | Scotland |
| Helix Property Corp. | Texas |
| Helix Q5000 Holdings LLC | Delaware |
| Helix Robotics Solutions, Inc. | Texas |
| Helix Robotics Solutions International Corp. | Texas |
| Helix Robotics Solutions Limited | Scotland |
| Helix Subsea Construction, Inc. | Delaware |
| Helix Well Ops Inc. | Texas |
| Helix Well Ops (U.K.) Limited | Scotland |
| Independence Hub, LLC (20% owned) | Delaware |
| Kommandor LLC | Delaware |
| Offshore Well Services, S. de R.L. de C.V. | Mexico |
| Patriot DSV Holdings, LLC | Louisiana |
| Subsea Technologies Group Limited | Scotland |
| Triton Diving Services, LLC | Louisiana |
| Whitney Clare Holdings, LLC | Louisiana |
| Whitney Liftboats, LLC | Louisiana |
| Whitney Maritime Holdings, LLC | Louisiana |
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 Hornbeck Offshore Services’s annual reports (10-K for 2025, 10-K for 2024, 10-K 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.