| Subsidiaries of the registrant | ||||||||
| Name | State of Incorporation or Organization | |||||||
| Texas Sterling Construction Co. | Delaware | |||||||
| Texas Sterling – Banicki, JV LLC | Texas | |||||||
| Road and Highway Builders, LLC | Nevada | |||||||
| Road and Highway Builders Inc. | Nevada | |||||||
| Road and Highway Builders of California, Inc. | California | |||||||
| Sterling Hawaii Asphalt, LLC | Hawaii | |||||||
| Ralph L. Wadsworth Construction Company, LLC | Utah | |||||||
| Ralph L. Wadsworth Construction Co. LP | California | |||||||
| J. Banicki Construction, Inc. | Arizona | |||||||
| Tealstone Commercial, Inc. | Texas | |||||||
| Tealstone Residential Concrete, Inc. | Texas | |||||||
Professional Plumbers Group, Incorporated | Texas | |||||||
| Plateau Excavation, Inc. | Georgia | |||||||
| DeWitt Excavation, LLC | Florida | |||||||
| LK Gregory Construction, Inc. | Tennessee | |||||||
| Kimes & Stone Construction, LLC | Delaware | |||||||
| Petillo, LLC | Delaware | |||||||
| Petillo NY, LLC | Delaware | |||||||
| Petillo MD, LLC | Delaware | |||||||
| Sterling Procurement Company, LLC | Louisiana | |||||||