| SPSeneca Petroleum CO. INC. | Toledo | OH | — | ◇ UNVERIFIED |
| SBSenn Blacktop INC | Chippewa Falls | WI | — | ◇ UNVERIFIED |
| SRService Rock Prods INC Barstow | Barstow | CA | — | ◇ UNVERIFIED |
| SPSessions Paving Company | Nashville | TN | — | ◇ UNVERIFIED |
| SGSet Grading and Paving CORP. | Glendale | CA | — | ◇ UNVERIFIED |
| SCSgl Carbon, LLC | Saint Marys | PA | — | ◇ UNVERIFIED |
| SAShad Asphalt Plant | Jacksonville | FL | — | ◇ UNVERIFIED |
| SEShamrock Enterprises - Oronoco | Oronoco | MN | — | ◇ UNVERIFIED |
| SPShamrock Paving INC | Spokane | WA | — | ◇ UNVERIFIED |
| SSSharon Steel CORP (farrell Works Disposal Area) | Hermitage | PA | — | ◇ UNVERIFIED |
| SBSharpe Bros., a Div. of Vecellio & Grogan, INC. - Burnt Popl | Greensboro | NC | — | ◇ UNVERIFIED |
| SBSharpe Brothers - Plant 4 | Kernersville | NC | — | ◇ UNVERIFIED |
| SSShea Sand & Gravel {jfs-sr} | Redding | CA | — | ◇ UNVERIFIED |
| SCSheboygan County Highway Asphalt Plant - 5731 | Greenbush | WI | — | ◇ UNVERIFIED |
| SPShelbiana Plant #15 | Pikeville | KY | — | ◇ UNVERIFIED |
| SPShelby's Pit | Harrington | ME | — | ◇ UNVERIFIED |
| SAShelbyville Asphalt CO LLC | Shelbyville | KY | — | ◇ UNVERIFIED |
| SLShelly Liquid Division | Cleveland | OH | — | ◇ UNVERIFIED |
| SMShelly Materials | Lima | OH | — | ◇ UNVERIFIED |
| SMShelly Materials, INC. - Plant #85 (0306000125) | Buckland | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant #1 (0744000097) | Proctorville | OH | — | ◇ UNVERIFIED |
| SMShelly Materials, Plant # 128 (0387000348) | Portage | OH | — | ◇ UNVERIFIED |
| SMShelly Materials - Plant #25 (0812760039) | Springfield | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant # 4132 (0448010386) | Toledo | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant #43 (0701000068) | Peebles | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant 47 (0773000237) | Lucasville | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant # 61 | Circleville | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant # 61 (0165010128) | Circleville | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant 63 (0145020323) | Newark | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant 65 (0660000100) | Dresden | OH | — | ◇ UNVERIFIED |
| SMShelly Materials Plant #92 | Columbus | OH | — | ◇ UNVERIFIED |
| SASherbrooke Asphalt INC | Portable | MN | — | ◇ UNVERIFIED |
| SASherbrooke Asphalt Incorporated | Detroit Lakes | MN | — | ◇ UNVERIFIED |
| SISherwin Industries INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| SCSherwood Construction CO INC / Millenial Asphalt Plant | Owasso | OK | — | ◇ UNVERIFIED |
| SCShilling Const. Gencor(asphalt Plant) (portable) | Manhattan | KS | — | ◇ UNVERIFIED |
| SCShilling Const. - Manhattan | Manhattan | KS | — | ◇ UNVERIFIED |
| SAShook Asphalt CO. INC. | Greenville | MI | — | ◇ UNVERIFIED |
| SBShort Brothers Construction INC | Marion | IL | — | ◇ UNVERIFIED |
| SASibley Aggregates - Nonmetallic | Belle Plaine | MN | — | ◇ UNVERIFIED |
| SCSiegrist Const | Denver | CO | — | ◇ UNVERIFIED |
| SCSierra Cascade Asphalt | Chester | CA | — | ◇ UNVERIFIED |
| SCSika CORP Industry Div | Union City | CA | — | ◇ UNVERIFIED |
| SCSilbrico Corp/easton | Forks Township | PA | — | ◇ UNVERIFIED |
| SCSilbrico Corporation | Brunswick | GA | — | ◇ UNVERIFIED |
| SPSilicon Processors, Inc., Parkersburg | Parkersburg | WV | — | ◇ UNVERIFIED |
| 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 |
| SMSkyline Metals Llc/slag Processing Plt | Baden | PA | — | ◇ UNVERIFIED |
| SCSkyway Cement CO LLC | Chicago | IL | — | ◇ UNVERIFIED |
| SPSlab Properties, LLC | Marriott-Slaterville | UT | — | ◇ UNVERIFIED |
| SPSlag Plant | El Paso | TX | — | ◇ 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 |
| SMSmoky Mountain Transfer Corporation | Charleston | TN | — | ◇ 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 |
| SISolem Industries | Fairmount | GA | — | ◇ UNVERIFIED |
| SCSolite CORP | Cascade | VA | — | ◇ UNVERIFIED |
| SRSorenson Ready-mix Concrete | Washington | UT | — | ◇ UNVERIFIED |
| SHSoutel Hma Plant | Jacksonville | FL | — | ◇ UNVERIFIED |
| SRSouthampton Roads Construction Corp | Virginia Beach | VA | — | ◇ UNVERIFIED |