| SCSatterfield Construction Company Incorporated | Greenwood | SC | — | ◐ LIKELY ACTIVE |
| SQSavanna Quarry INC | Savanna | IL | — | ◐ LIKELY ACTIVE |
| SBS B Cox - Doswell | Doswell | VA | — | ◐ LIKELY ACTIVE |
| SBS B Cox Ready Mix - Gloucester Plant | Gloucester | VA | — | ◐ LIKELY ACTIVE |
| SBS B Cox Ready Mix Incorporated - Anderson Hwy | Powhatan | VA | — | ◐ LIKELY ACTIVE |
| SMScatt Materials CORP. | Bay Shore | NY | — | ◐ LIKELY ACTIVE |
| SCSchmidt Const CO - Fountain Pit | Fountain | CO | — | ◐ LIKELY ACTIVE |
| SCSchmidt Const CO INC Mencenberg Quarry | Castle Rock | CO | — | ◐ LIKELY ACTIVE |
| SCScottys Contracting & Stone LLC - Allen CO Asphalt Plant - Portable | Tompkinsville | KY | — | ◐ LIKELY ACTIVE |
| SCSeaford Concrete Products | Bridgeville | DE | — | ◐ LIKELY ACTIVE |
| SSSellersburg Stone CO INC (asphalt) | Sellersburg | IN | — | ◐ LIKELY ACTIVE |
| SRSemo Ready Mix, INC. | Cape Girardeau | MO | — | ◐ LIKELY ACTIVE |
| SCSequatchie Concrete Service | Estill Springs | TN | — | ◐ LIKELY ACTIVE |
| SCSequatchie Concrete Service - Athens | Athens | TN | — | ◐ LIKELY ACTIVE |
| SPServall Plant/erie | Erie | PA | — | ◐ LIKELY ACTIVE |
| SPSessions Paving Company | Nashville | TN | — | ◐ LIKELY ACTIVE |
| SMShelby Materials Incorporated | Nashville | IN | — | ◐ LIKELY ACTIVE |
| SMShelly Material Plant 2 Formerly Allied CORP Plant No 9 | Gallipolis | OH | — | ◐ LIKELY ACTIVE |
| SMShelly Materials Plant #44 | Hillsboro | OH | — | ◐ LIKELY ACTIVE |
| SMShelly Materials Plant 63 (0145020323) | Newark | OH | — | ◐ LIKELY ACTIVE |
| SMShelly Materials Plant No 62 (0123000206) | Lancaster | OH | — | ◐ LIKELY ACTIVE |
| SMShelly Materials Plant No 89 | Convoy | OH | — | ◐ LIKELY ACTIVE |
Sherman Industries Alexander City Plant | Alexander City | AL | — | ◐ LIKELY ACTIVE |
| SCSherwood Construction CO INC / Millenial Asphalt Plant | Owasso | OK | — | ◐ LIKELY ACTIVE |
| SCShilling Const. Gencor(asphalt Plant) (portable) | Manhattan | KS | — | ◐ LIKELY ACTIVE |
| SCShilling Const. - Manhattan | Manhattan | KS | — | ◐ LIKELY ACTIVE |
| SCSierra Concrete | Quincy | CA | — | ◐ LIKELY ACTIVE |
| SCSilbrico Corp/easton | Forks Township | PA | — | ◐ LIKELY ACTIVE |
| SSSilver Star Construction CO Pmi Divisio / Cmi Ptd 400 Asphalt Plant Sn 104 | Moore | OK | — | ◐ LIKELY ACTIVE |
| SCSimon - Cheyenne Asphalt - Mobile Bc Plant #3 | Cheyenne | WY | — | ◐ LIKELY ACTIVE |
| SASkippers Asphalt Plant | Jarratt | VA | — | ◐ LIKELY ACTIVE |
| SSS&k Stone Incorporated | Meshoppen | PA | — | ◐ LIKELY ACTIVE |
| SCSloan Construction:# 7 | Columbia | SC | — | ◐ LIKELY ACTIVE |
| SCSloan Construction - Blacksburg Plant | Blacksburg | SC | — | ◐ LIKELY ACTIVE |
| SCSloan Construction:duncan | Duncan | SC | — | ◐ LIKELY ACTIVE |
| SASmasal Aggregates & Asphalt, LLC | Cole Camp | MO | — | ◐ LIKELY ACTIVE |
| SCSmith Concrete Company - Charleston Plant | Charleston | WV | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete | Richmond | VA | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete LLC | Gallatin | TN | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete, LLC | Nashville | TN | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete, LLC - Blount County Plant #48 | Louisville | TN | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete, LLC Dba Dunlap Plant Crusher | Dunlap | TN | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete LLC Dba Shelbyville Plant | Shelbyville | TN | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete, LLC - La Vergne Plant 14a & 14b | La Vergne | TN | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete, LLC Plant 15020 | Cedar Bluff | AL | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete LLC - Plant 207 | Bardstown | KY | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete LLC Plant 231 | Sparta | KY | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete Llc- Plant No. 15/plant No. 15b | Lebanon | TN | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete LLC - Spencer Mill Road, Bon Aqua | Bon Aqua | TN | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete LLC - Srm Plant #125 | Panama City | FL | — | ◐ LIKELY ACTIVE |