| SBSouth Boston Asphalt Plant | South Boston | VA | — | ◇ UNVERIFIED |
| SCSoutheastern Clay CO | Aiken | SC | — | ◇ UNVERIFIED |
| SCSoutheastern Concrete Company Inc, Plant Number 4 | Hattiesburg | MS | — | ◇ UNVERIFIED |
| SASouthern Asphalt | Conway | SC | — | ◇ UNVERIFIED |
| SCSouthern Clay Products | Gonzales | TX | — | ◇ UNVERIFIED |
| SISouthern Illinois Materials CO | Dodds | IL | — | ◇ UNVERIFIED |
| SISouthern Illinois Stone CO | Buncombe | IL | — | ◇ UNVERIFIED |
| SNSouthern Nevada Paving Charleston | Las Vegas | NV | — | ◇ UNVERIFIED |
| SWSouthern West Virginia Asphalt, Inc., Clear Fork | Clear Fork | WV | — | ◇ UNVERIFIED |
| SWSouthern West Virginia Asphalt, Inc., Hma Plant #33 | Beaver | WV | — | ◇ UNVERIFIED |
| SWSouthern West Virginia Asphalt, Inc., Huntington | Huntington | WV | — | ◇ UNVERIFIED |
| SWSouthern West Virginia Asphalt, Inc., Mill Point | Hillsboro | WV | — | ◇ UNVERIFIED |
| SWSouthern West Virginia Asphalt, Inc., Moorefield | Moorefield | WV | — | ◇ UNVERIFIED |
| SWSouthern West Virginia Asphalt, Inc., Plant #52 Alta | Alta | WV | — | ◇ UNVERIFIED |
| SWSouthern West Virginia Asphalt, Inc., Whitman | Whitman | WV | — | ◇ UNVERIFIED |
| SWSouthern West Virginia Asphalt, Princeton/plant # | Princeton | WV | — | ◇ UNVERIFIED |
| SFSouth Florida Materials CORP | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| SFSouth Florida Plant | Pompano Beach | FL | — | ◇ UNVERIFIED |
| SSSouth Shore Slag LLC - Contractor of Uss Gary Works (00121) | Gary | IN | — | ◇ UNVERIFIED |
| SSSouth State INC | Bridgeton | NJ | — | ◇ UNVERIFIED |
| SASouthwest Asphalt | Peoria | AZ | — | ◇ UNVERIFIED |
| SCSouthwest Concrete & Paving | Deming | NM | — | ◇ UNVERIFIED |
| SRSouthwind Ras LLC | Lyons | IL | — | ◇ UNVERIFIED |
| SCSowers Construction Co., INC. Asphalt Plant | Mount Airy | NC | — | ◇ UNVERIFIED |
| SASparks Asphalt Plant | Sparks | NV | — | ◇ UNVERIFIED |
| SMSpecialty Minerals (at Madison Paper) | Madison | ME | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Zachary | LA | — | ◇ UNVERIFIED |
| SMSpecialty Minerals INC | Ashdown | AR | — | ◇ UNVERIFIED |
| SVSpecialty Vermiculite CORP | Enoree | SC | — | ◇ UNVERIFIED |
| SCSpinks Clay Company - Gleason Plant | Gleason | TN | — | ◇ UNVERIFIED |
| SRSpoon River Blacktop | Lewistown | IL | — | ◇ UNVERIFIED |
| SASpringfield Asphalt Plant | Springfield | KY | — | ◇ UNVERIFIED |
| SMSquak Mountain Materials INC | Issaquah | WA | — | ◇ UNVERIFIED |
| SFSr60 From E of Clarence Gordon Jr to Polk County L | Plant City | FL | — | ◇ UNVERIFIED |
| SCSta-bilt Construction CO - Harlan | Harlan | IA | — | ◇ UNVERIFIED |
| SPStaker Parson Brigham City | Brigham City | UT | — | ◇ UNVERIFIED |
| SPStaker & Parson Companies Point North | Draper | UT | — | ◇ UNVERIFIED |
| SPStaker Parson Companies Price Asphalt Plant | Carbon County | UT | — | ◇ UNVERIFIED |
| SPStaker & Parson Companies Smithfield Plant | Smithfield | UT | — | ◇ UNVERIFIED |
| SPStaker Paving and Construction | Mancos | CO | — | ◇ UNVERIFIED |
| SPStallion Paving, LLC | Salado | TX | — | ◇ UNVERIFIED |
| SCStandard Corporation Jones Lane | Lugoff | SC | — | ◇ UNVERIFIED |
| SIStandard Industrial Mineral in | Laws | CA | — | ◇ UNVERIFIED |
| SMStandard Mineral Company Incorporated | Robbins | NC | — | ◇ UNVERIFIED |
| STStansteel Tm30 Asphalt Plant No0499 | Socorro | NM | — | ◇ UNVERIFIED |
| SPStark Paving INC | Bloomington | IL | — | ◇ UNVERIFIED |
| SPStar Paving Company | Albuquerque | NM | — | ◇ UNVERIFIED |
| SISta-seal Industries Inc- Edison | Edison Twp | NJ | — | ◇ UNVERIFIED |
| SHState Highway Construction | Elwin | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction | Bearsdale | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction | Winchester | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction | Taylorville | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction | Springfield | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction CORP | Lincoln | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction CORP | Payson | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction CORP INC | Litchfield | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction CORP INC | Pana | IL | — | ◇ UNVERIFIED |
| SHState Highway Construction CORP INC | Assumption | IL | — | ◇ UNVERIFIED |
| SHState Hwy Const CORP INC | Beardstown | IL | — | ◇ UNVERIFIED |
| SIStaten Island Asphalt, LLC | Staten Island | NY | — | ◇ UNVERIFIED |
| SSStatewide Surfacing & Construction, INC. | Hayward | WI | — | ◇ UNVERIFIED |
| SCStationary Concrete Batch Pla | Laramie | WY | — | ◇ UNVERIFIED |
| SCStationary Concrete Batch Plant | Albany | WY | — | ◇ UNVERIFIED |
| SHStationary Hot Mix Asphalt Plant (ct-1200) | Park County | WY | — | ◇ UNVERIFIED |
| SHStationary Hot Mix Asphalt Plant (md-14327) | Laramie | WY | — | ◇ UNVERIFIED |
| SAStavola Asphalt CO INC Howell Facility | Howell | NJ | — | ◇ UNVERIFIED |
| SMStavola Materials Oldwick Quarry | Oldwick | NJ | — | ◇ UNVERIFIED |
| SNStavola Newark Terminal | Newark | NJ | — | ◇ UNVERIFIED |
| SRStavola - Rosano Asphalt | Howell Twp | NJ | — | ◇ UNVERIFIED |
| STS T Bunn Construction CO | Fayette | AL | — | ◇ UNVERIFIED |
| STS T Bunn Construction CO | Eutaw | AL | — | ◇ UNVERIFIED |
| SISteelstone Industries, INC. - Houlton | Houlton | ME | — | ◇ UNVERIFIED |
| SIStein, INC | Birmingham | AL | — | ◇ UNVERIFIED |
| SIStein, INC. (old Harsco Metals) | Tarrant | AL | — | ◇ UNVERIFIED |
| SLStein LLC (1318003929) | Cleveland | OH | — | ◇ UNVERIFIED |
| SVSterling Ventures LLC | Verona | KY | — | ◇ UNVERIFIED |
| SCSteven CO. Asphalt Plant (stormwater) | Hugoton | KS | — | ◇ UNVERIFIED |
| SCSteven Counts, INC. Fka Harlis Ellington | Ocala | FL | — | ◇ UNVERIFIED |
| SNStewart & Nuss | Fresno | CA | — | ◇ UNVERIFIED |
| SCSt-gobain Ceramics & Plastics | Bryant | AR | — | ◇ UNVERIFIED |
| SJSt Joseph Fuel Oil Co-st Joseph Fuel Oil CO | Saint Joseph | MO | — | ◇ UNVERIFIED |
| SCStoneco CO Plant# 125 (0388000036) | Carey | OH | — | ◇ UNVERIFIED |
| SIStoneco, INC. Plant 116 (0381020004) | Scott | OH | — | ◇ UNVERIFIED |
| SPStoneco Plant #117 (0354012001) | Celina | OH | — | ◇ UNVERIFIED |
| SWStoneco Woodville Asphalt Plant | Woodville | OH | — | ◇ UNVERIFIED |
| SIStone Industries | Haledon | NJ | — | ◇ UNVERIFIED |
| SCStrata Construction-devils Lake (nodak Contracting) | Devils Lake | ND | — | ◇ UNVERIFIED |
| SCStrata Construction-grand Forks Asphalt Plant (nodak Contracting) | Grand Forks | ND | — | ◇ UNVERIFIED |
| SCStrata Corporation-menoken | Menoken | ND | — | ◇ UNVERIFIED |
| SMStrawser Materials - Harmon Plant | Columbus | OH | — | ◇ UNVERIFIED |
| SPStreetman Plant | Streetman | TX | — | ◇ UNVERIFIED |
| SEStroehecker Excavation | Durango | CO | — | ◇ UNVERIFIED |
| S3Strohecker - 300 Cr 302 Asphalt Plant | Pagosa Springs Area | CO | — | ◇ UNVERIFIED |
| SAStrohecker Asphalt & Paving INC | Pagosa Springs Area | CO | — | ◇ UNVERIFIED |
| SMStuart M Perry Incorporated-limestone | Winchester | VA | — | ◇ UNVERIFIED |
| STS T Wooten Asphalt Mixing Services LLC Inactive | Hickory Mountain | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Asphalt Mixing Services, Llc, Plant 5, 6, 15 | Zebulon | NC | — | ◇ UNVERIFIED |
| STS T Wooten Corporation | Moncure | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation | Wilmington | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation Benson | Benson | NC | — | ◇ UNVERIFIED |