Exhibit 21.1
| LIST OF CORPORATE ENTITIES (UPDATED 12/31/22) |
Orion Administrative Services, Inc.
East & West Jones Placement Areas, LLC
Preferred Tool Services, Inc.
Orion Marine Group, LLC
Orion Marine Contractors, Inc.
Northwest Marine Construction, ULC
Schneider E&C Company, Inc.
Orion Industrial Construction, LLC
(fka F. Miller Construction, LLC)
Orion Construction, LLC
Orion Marine Construction, Inc.
SSL South, LLC
OM Marine Services de Mexico (S de R.L. de C.V.)
Orion Marine Construction Bahamas, LLC
Orion Marine Construction Cayman, Inc.
Orion Marine Construction, Inc.-Honduras
Orion Marine Construction TCI, Ltd
Orion Marine de Mexico (S de R.L. de C.V.)
T. LaQuay Dredging, LLC
King Fisher Marine Services, LLC
Misener Marine Construction, Inc.
Industrial Channel & Dock Company
Commercial Channel & Dock Company
Orion Concrete Construction, LLC
TAS Concrete Construction, LLC
Tony Bagliore Concrete, Inc. dba T.A.S. Commercial Concrete CTX
T.A.S. Commercial Concrete Solutions, LLC
T.A.S. Proco, LLC
Orion Corporate Services, LLC
Artemis Business Solutions, LLC
Orion Government Services, LLC
Dragados/Hawaiian Dredging/Orion JV