| SASmasal Aggregates & Asphalt, LLC | Cole Camp | MO | — | ◇ UNVERIFIED |
| SSSme Saginaw | Saginaw | MI | — | ◇ UNVERIFIED |
| SCSmith Construction INC #1000-92 | Marquette | MI | — | ◇ UNVERIFIED |
| SISmith Island Ac Plant | Everett | WA | — | ◇ UNVERIFIED |
| SRSmyrna Ready Mix Concrete, LLC - Spec Agg Ready Mix | Golden | CO | — | ◇ UNVERIFIED |
| SSSoil Safe INC | Brandywine | MD | — | ◇ UNVERIFIED |
| SCSolano Concrete Company INC | Fairfield | CA | — | ◇ UNVERIFIED |
| SCSolano Concrete Company Incorporated | Madison | CA | — | ◇ UNVERIFIED |
| SASolari Asphalt Facility - Granite Constr | Arvin | CA | — | ◇ UNVERIFIED |
| SQSolari Quarry - Granite Construction | Arvin | CA | — | ◇ UNVERIFIED |
| SISolutia, INC. - Linden Facility | Linden | NJ | — | ◇ UNVERIFIED |
| SRSorenson Ready-mix Concrete | Washington | UT | — | ◇ UNVERIFIED |
| SHSoutel Hma Plant | Jacksonville | FL | — | ◇ UNVERIFIED |
| SRSouthampton Roads Construction Corp | Virginia Beach | VA | — | ◇ UNVERIFIED |
| SBSouth Boston Asphalt Plant | South Boston | VA | — | ◇ UNVERIFIED |
| SCSoutheastern Concrete Company Inc, Plant Number 4 | Hattiesburg | MS | — | ◇ UNVERIFIED |
| SASouthern Asphalt | Conway | SC | — | ◇ 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 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 |
| 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 |
| STStansteel Tm30 Asphalt Plant No0499 | Socorro | NM | — | ◇ UNVERIFIED |
| SIStarcon International | Lemont | IL | — | ◇ UNVERIFIED |
| SIStarcon International | Artesia | NM | — | ◇ UNVERIFIED |