| SCSilvia Construction INC | Upland | CA | — | ◇ UNVERIFIED |
| SCSilvia Construction INC | San Jose | CA | — | ◇ UNVERIFIED |
| SASimon Aesco Madsen Portable B | Laramie County | WY | — | ◇ UNVERIFIED |
| SASimon Aesco Madsen Portable Bc Plant | Laramie | WY | — | ◇ UNVERIFIED |
| SCSimon - Cheyenne Asphalt - Mobile Bc Plant #3 | Cheyenne | WY | — | ◇ UNVERIFIED |
| SCSimon Contractors | Scottsbluff | NE | — | ◇ UNVERIFIED |
| SCSimon Contractors INC | Scottsbluff | NE | — | ◇ UNVERIFIED |
| SCSimon Contractors Mobile 01 | Statewide Portable | NE | — | ◇ UNVERIFIED |
| SCSimon Contractors - Rushmore Bc Plant | Statewide | CO | — | ◇ UNVERIFIED |
| SPSimon Portable Bc Plant #5 | Crook | WY | — | ◇ UNVERIFIED |
| SCSimpson Construction Materials LLC Valley Park | Valley Park | MO | — | ◇ UNVERIFIED |
| SPSinger Plant | Everson | WA | — | ◇ UNVERIFIED |
| SSSisquoc Sand, Rock and Gravel Plant | Santa Maria | CA | — | ◇ UNVERIFIED |
| SMSite Masters Construction Inc, Hot Mix Plant 1 | Columbus | MS | — | ◇ UNVERIFIED |
| SCSja Concrete | Philadelphia | PA | — | ◇ UNVERIFIED |
| SUSkanska USA Civil West Ca Dist INC | Colton | CA | — | ◇ UNVERIFIED |
| SUSkanska USA - Hma Plant | Cortez | CO | — | ◇ UNVERIFIED |
| SASkippers Asphalt Plant | Jarratt | VA | — | ◇ UNVERIFIED |
| SPSlab Properties, LLC | Marriott-Slaterville | UT | — | ◇ UNVERIFIED |
| SCSloan Construction:#13-closed | Gray Court | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:#14-closed | Duncan | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:#16 | Cayce | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:# 7 | Columbia | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:anderson | Anderson | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:blacksburg | Blacksburg | SC | — | ◇ UNVERIFIED |
| SCSloan Construction Co-forsyth | Winston Salem | NC | — | ◇ UNVERIFIED |
| SCSloan Construction Company INC | Duncan | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:duncan | Duncan | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:liberty | Liberty | SC | — | ◇ UNVERIFIED |
| SCSloan Construction:pacolet | Pacolet | SC | — | ◇ UNVERIFIED |
| SMSloan Midstate Asphalt Plant | Columbia | SC | — | ◇ UNVERIFIED |
| SPSlurry Pavers, INC. | Morehead City | NC | — | ◇ UNVERIFIED |
| SLS L Williamson & CO - Red Hill | North Garden | VA | — | ◇ UNVERIFIED |
| SLS L Williamson & CO - Ruckersville | Ruckersville | VA | — | ◇ UNVERIFIED |
| SLS L Williamson & CO - Shadwell | Charlottesville | VA | — | ◇ UNVERIFIED |
| 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 |
| 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 |