| SRSmyrna Ready Mix Concrete LLC - Srm Plant #167, 168 169 | Fort Myers | FL | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete, Llc- Wildwood Plant | Wildwood | FL | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete/shenango Twp | W. Middlesex | PA | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix East Trail Batch Plant | Naples | FL | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix - Plant #103 | Tallahassee | FL | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix - Plant # 104 | Tallahassee | FL | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix - Plant #128 | Fort Walton Beach | FL | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix - Plant #145 | Panacea | FL | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix - Williston Ready Mix Plant | Williston | FL | — | ◐ LIKELY ACTIVE |
| SRSmyrn Ready Mix Concrete, LLC - Smr Plant 124 | Perry | FL | — | ◐ LIKELY ACTIVE |
| SISolem Industries | Fairmount | GA | — | ◐ LIKELY ACTIVE |
| SRSolid Rock Concrete | Russellville | MO | — | ◐ LIKELY ACTIVE |
| SHSoutel Hma Plant | Jacksonville | FL | — | ◐ LIKELY ACTIVE |
| SCSouthern Concrete Materials, INC. - Waynesville | Waynesville | NC | — | ◐ LIKELY ACTIVE |
| SESouthern Equip Co., INC. Dba Ready Mixed Concrete CO. #25 | Rougemont | NC | — | ◐ LIKELY ACTIVE |
| SESouthern Equipment CO. D.b.a. Ready Mixed Concrete CO. | Wake Forest | NC | — | ◐ LIKELY ACTIVE |
| SESouthern Equipment CO (dba Rmcc) - Hillsborough - Plant #53 | Hillsborough | NC | — | ◐ LIKELY ACTIVE |
| SISouthern Illinois Redi-mix INC | Marion | IL | — | ◐ LIKELY ACTIVE |
| SPSouthern Precast Concrete Corporation | Tarpon Springs | FL | — | ◐ LIKELY ACTIVE |
| SSSouth Shore Slag LLC - Contractor of Uss Gary Works (00121) | Gary | IN | — | ◐ LIKELY ACTIVE |
| SSSouth State INC | Bridgeton | NJ | — | ◐ LIKELY ACTIVE |
| SMSouthwest Materials | Ozark | MO | — | ◐ LIKELY ACTIVE |
| SBSparta Block & Tank Supply | Sparta | TN | — | ◐ LIKELY ACTIVE |
| SSSpartan Stones | Tuscumbia | AL | — | ◐ LIKELY ACTIVE |
| SCSpring Creek Materials, INC - Salem Redi-mix, LLC | Salem | AR | — | ◐ LIKELY ACTIVE |
| SLSrm Little River Plant | Little River | SC | — | ◐ LIKELY ACTIVE |
| SSS & S Precast, INC. | Bonita Springs | FL | — | ◐ LIKELY ACTIVE |
| SMStandard Mineral Company Incorporated | Robbins | NC | — | ◐ LIKELY ACTIVE |
| STS T Bunn Construction | Ethelsville | AL | — | ◐ LIKELY ACTIVE |
| STS T Bunn Construction CO | Eutaw | AL | — | ◐ LIKELY ACTIVE |
| SISteelstone Industries, INC. | Houlton | ME | — | ◐ LIKELY ACTIVE |
| SSSterling Stone Division | Sarasota | FL | — | ◐ LIKELY ACTIVE |
| SCStevens CO. Highway Dept. (asphalt Plant)(portable)(air) | Portable | KS | — | ◐ LIKELY ACTIVE |
| STStevenson-weir/southern - Texland | Charlotte | NC | — | ◐ LIKELY ACTIVE |
| SJSt. Johnsville Quarry & Hma | Saint Johnsville | NY | — | ◐ LIKELY ACTIVE |
| SCStone & CO Inc/charleroi Plt | Charleroi | PA | — | ◐ LIKELY ACTIVE |
| SIStoneco INC - Scott Plant | Convoy | OH | — | ◐ LIKELY ACTIVE |
| SPStoneco Plant #117 (0354012001) | Celina | OH | — | ◐ LIKELY ACTIVE |
| SAStrategic Asphalt INC | Uxbridge | MA | — | ◐ LIKELY ACTIVE |
| S3Strohecker - 300 Cr 302 Asphalt Plant | Pagosa Springs Area | CO | — | ◐ LIKELY ACTIVE |
| SAStrohecker Asphalt & Paving INC | Pagosa Springs Area | CO | — | ◐ LIKELY ACTIVE |
| SWS.t. Wooten Corporation Jacksonville Asphalt | Jacksonville | NC | — | ◐ LIKELY ACTIVE |
| STS T Wooten Corporation - Newport | Newport | NC | — | ◐ LIKELY ACTIVE |
| STS T Wooten Corp- Wilson | Wilson | NC | — | ◐ LIKELY ACTIVE |
| STS. T. Wooten - Pittsboro Asphalt Plant | Pittsboro | NC | — | ◐ LIKELY ACTIVE |
| SCSummers Concrete Contracting INC | Valdosta | SC | — | ◐ LIKELY ACTIVE |
| SBSummers-taylor Blountville Concrete Plant | Kingsport | TN | — | ◐ LIKELY ACTIVE |
| SISummers-taylor INC. - Unicoi County (erwin) Concrete Plant | Erwin | TN | — | ◐ LIKELY ACTIVE |
| SMSummers-taylor Materials Company Dba Simpson Construction Property | Cleveland | TN | — | ◐ LIKELY ACTIVE |
| SASundial Asphalt Company | East Setauket | NY | — | ◐ LIKELY ACTIVE |