| RBRiver Bend Sand and Gravel CO | Salem | OR | — | ◇ UNVERIFIED |
| RHRk Hall - Materials & Asphalt Plant - Denison | Denison | TX | — | ◇ UNVERIFIED |
| RHRk Hall -mt Pleasant Asphalt Plant | Mount Pleasant | TX | — | ◇ UNVERIFIED |
| RHRk Hall - Paris | Paris | TX | — | ◇ UNVERIFIED |
| RHRk Hall Texarkana East Asphalt Plant #50 | Texarkana | AR | — | ◇ UNVERIFIED |
| RMRocky Mountain Materials and Asphalt INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| RMRocky Mountain Materials & Asphalt INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| RHRti Hot Mix Florence Quarry Asphalt Plant | Georgetown | TX | — | ◇ UNVERIFIED |
| RHRti Hot Mix Garden Ridge Hmp | New Braunfels | TX | — | ◇ UNVERIFIED |
| RHRti Hot Mix Mustang Ridge Asphalt Plant | Austin | TX | — | ◇ UNVERIFIED |
| RHRti Hot Mix South Asphalt Plant | Buda | TX | — | ◇ UNVERIFIED |
| RSRussell Standard / Hammaker East LTD | Akron | OH | — | ◇ UNVERIFIED |
| RSRussell Std Mfg Mercer | Mercer | PA | — | ◇ UNVERIFIED |
| SVSaint-gobain Vetrotex America INC | Russellville | AL | — | ◇ UNVERIFIED |
| SFSanta Fe Materials, Winton Plant | Winton | CA | — | ◇ UNVERIFIED |
| SLSemmaterials L.p. | Fontana | CA | — | ◇ UNVERIFIED |
| SLSemmaterials LP Spokane | Spokane | WA | — | ◇ UNVERIFIED |
| SPSeward Plant | Liberty Hill | TX | — | ◇ UNVERIFIED |
| SASharps Asphalt | Springdale | AR | — | ◇ UNVERIFIED |
| SMShelly Materials Plant 24 (0180000002) | Ostrander | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant #90 | Columbus | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant No 94 (0145000399) | Reynoldsburg | OH | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC (cromwell Road Batch Plant) | Chattanooga | TN | — | ◇ UNVERIFIED |
| SESoutheast Emulsions – Perry Liquid Terminal | Perry | GA | — | ◇ UNVERIFIED |
| STSouth Tyler Asphalt Plant | Tyler | TX | — | ◇ UNVERIFIED |
| SGSpecialty Granules Ione LLC | Ione | CA | — | ◇ UNVERIFIED |
| SPStaker & Parson Companies- Beck Street Consolidated | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SPStaker Parson Companies Dba Western Rock Products Cedar City Facility | Cedar City | UT | — | ◇ UNVERIFIED |
| SPStaker & Parson Companies St. George Ready-mix & Asphalt | Saint George | UT | — | ◇ UNVERIFIED |
| SDSteel Dynamics INC - Engineered Bar Products Div | Pittsboro | IN | — | ◇ UNVERIFIED |
| SIStein INC | Middletown | OH | — | ◇ UNVERIFIED |
| SJSt. James Asphalt Terminal | Saint James | LA | — | ◇ UNVERIFIED |
| SIStoneco INC Maumee Plant | Maumee | OH | — | ◇ UNVERIFIED |
| SKSuit Kote | Meadville | PA | — | ◇ UNVERIFIED |
| SSuit-kote | Buffalo | NY | — | ◇ UNVERIFIED |
| SCSuit-kote Corporation - Cortland Asphalt | Cortland | NY | — | ◇ UNVERIFIED |
| SJSuit-kote Jamestown | Jamestown | NY | — | ◇ UNVERIFIED |
| SOSuit-kote Oneonta | Oneonta | NY | — | ◇ UNVERIFIED |
| SCSunroc CORP - Fort Pierce Facility | Saint George | UT | — | ◇ UNVERIFIED |
| SCSunroc Corporation - Corral Asphalt Plant | Boise | ID | — | ◇ UNVERIFIED |
| SCSunroc Corporation - Notus Hot Mix Asphalt Plant | Caldwell | ID | — | ◇ UNVERIFIED |
| SDSunroc Dba Depatco - 209 Pit | Idaho Falls | ID | — | ◇ UNVERIFIED |
| SISunrock Industries LLC - Kittrell Quarry | Kittrell | NC | — | ◇ UNVERIFIED |
| SISunrock Industries LLC - Wake Forest Plant | Wake Forest | NC | — | ◇ UNVERIFIED |
| SISunrock Industries LLC - Woodsdale | Roxboro | NC | — | ◇ UNVERIFIED |
| SASuper Asphalt Canovanas Plant | Canovanas | PR | — | ◇ UNVERIFIED |
| SASuper Asphalt Guaynabo Plant | Guaynabo | PR | — | ◇ UNVERIFIED |
| SASuper Asphalt Salinas Plant | Salinas | PR | — | ◇ UNVERIFIED |
| TRTangerine Rd. Asphalt Plant | Marana | AZ | — | ◇ UNVERIFIED |
| TATeichert Aggregates Martis | Truckee | CA | — | ◇ UNVERIFIED |