EXHIBIT 21.1
KIRBY CORPORATION
CONSOLIDATED SUBSIDIARIES OF THE REGISTRANT
AT DECEMBER 31, 2025
| Domicile of |
KIRBY CORPORATION – PARENT AND REGISTRANT | Nevada |
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SUBSIDIARIES OF THE PARENT AND REGISTRANT |
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Kirby Corporate Services, LLC | Delaware |
KIM Holdings, Inc. | Delaware |
Kirby Terminals, Inc. | Texas |
Sabine Transportation Company | Delaware |
AFRAM Carriers, Inc. | Delaware |
Kirby Distribution & Services, Inc. | Delaware |
Kirby Tankships, Inc. | Delaware |
Kirby Ocean Transport Company | Delaware |
Kirby Offshore Marine, LLC | Delaware |
Adaptive KRM, LLC | Texas |
The Hollywood Camp, LLC | Texas |
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CONTROLLED SUBSIDIARIES |
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KIM Partners, LLC (Subsidiary of KIM Holdings, Inc.) | Louisiana |
Kirby Inland Marine, LP (KIM Holdings, Inc. 1% General Partner, KIM Partners, LLC 99% Limited Partner) | Delaware |
Greens Bayou Fleeting, LLC (subsidiary of Kirby Inland Marine, LP) | Texas |
Dixie Carriers, Inc. (subsidiary of Kirby Inland Marine, LP) | Texas |
Osprey Line, L.L.C. (Kirby Inland Marine, LP 66 2/3%) | Texas |
San Jac Marine, LLC (subsidiary of Kirby Inland Marine, LP) | Delaware |
Diesel Dash LLC (subsidiary of Kirby Distribution & Services, Inc.) | Delaware |
Kirby Engine Systems LLC (subsidiary of Kirby Distribution & Services, Inc.) | Delaware |
Marine Systems, Inc. (subsidiary of Kirby Engine Systems LLC) | Louisiana |
Engine Systems, Inc. (subsidiary of Kirby Engine Systems LLC) | Delaware |
United Holdings LLC (subsidiary of Kirby Distribution & Services, Inc.) | Delaware |
United Engines LLC (subsidiary of United Holdings LLC) | Colorado |
UE Manufacturing LLC (subsidiary of United Holdings LLC) | Colorado |
Thermo King of Houston, LLC (subsidiary of United Holdings LLC) | Texas |
Thermo King of Dallas, LLC (subsidiary of United Holdings LLC) | Texas |
San Antonio Thermo King, Inc. (subsidiary of Thermo King of Houston, LLC) | Texas |
Kirby Offshore Marine Operating, LLC (subsidiary of Kirby Offshore Marine, LLC) | Delaware |
Kirby Offshore Wind, LLC (subsidiary of Kirby Offshore Marine, LLC) | Delaware |
Kirby Offshore Marine Hawaii, LLC (subsidiary of Kirby Offshore Marine Operating, LLC) | Delaware |
Kirby Offshore Marine Pacific, LLC (subsidiary of Kirby Offshore Marine Operating, LLC) | Delaware |
Kirby Offshore Marine, Inc. (subsidiary of Kirby Offshore Marine Operating, LLC) | Delaware |
Inversiones Kara Sea SRL (subsidiary of Kirby Offshore Marine Operating, LLC) | Venezuela |
K-Sea Canada Holdings, Inc. (subsidiary of Kirby Offshore Marine, Inc.) | Delaware |
Penn Maritime Inc. (subsidiary of Kirby Offshore Marine, LLC) | Delaware |
Stewart & Stevenson LLC (subsidiary of Kirby Distribution & Services, Inc.) | Delaware |
Stewart & Stevenson Power Products LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
Stewart & Stevenson Canada Inc. (subsidiary of Stewart & Stevenson LLC) | Canada |
Stewart & Stevenson de las Americas Colombia Ltda. (Stewart & Stevenson Petroleum Services LLC 1% General Partner, Stewart & Stevenson LLC 99% Limited Partner) | Colombia |
Stewart & Stevenson de Venezuela, S.A. (subsidiary of Stewart & Stevenson LLC 99.95%) | Venezuela |
Stewart & Stevenson Petroleum Services LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
Stewart & Stevenson Manufacturing Technologies LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
Stewart & Stevenson Acquisition LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
Stewart & Stevenson FDDA LLC (subsidiary of Stewart & Stevenson LLC) | Delaware |
Transmissions Y Embragues, S.A. (subsidiary of Stewart & Stevenson de Venezuela, S.A.) | Venezuela |
Stewart and Stevenson Healthcare Technologies, LLC (subsidiary of Stewart & Stevenson LLC) | Texas |
Higman Marine, Inc. (subsidiary of Kirby Inland Marine, LP) | Delaware |
Higman Barge Lines, Inc. (subsidiary of Higman Marine, Inc.) | Delaware |
Higman Marine Services, Inc. (subsidiary of Higman Marine, Inc.) | Delaware |
Higman Service Corporation (subsidiary of Higman Marine, Inc.) | Delaware |
Alamo Barge Lines, LLC (subsidiary of Kirby Inland Marine, LP) | Delaware |
Empty Barge Lines, Inc. (subsidiary of Kirby Inland Marine, LP) | Texas |
Empty Barge Lines II, Inc. (subsidiary of Kirby Inland Marine, LP) | Texas |
Empty Barge Lines III, Inc. (subsidiary of Kirby Inland Marine, LP) | Texas |
EBL Marine I LLC (subsidiary of Kirby Inland Marine, LP) | Texas |
EBL Marine II LLC (subsidiary of Kirby Inland Marine, LP) | Texas |
EBL Marine III LLC (subsidiary of Kirby Inland Marine, LP) | Texas |