| SCSullivan County Highway Department | Blountville | TN | — | ◐ LIKELY ACTIVE |
| SCSummers Concrete Contracting, INC. Plant 450 | Kinston | NC | — | ◐ LIKELY ACTIVE |
| SISummers-taylor INC | Greeneville | TN | — | ◐ LIKELY ACTIVE |
| SISummers-taylor, INC. | Elizabethton | TN | — | ◐ LIKELY ACTIVE |
| SMSummers-taylor Materials Company Dba Rogersville Concrete Plant | Rogersville | TN | — | ◐ LIKELY ACTIVE |
| SMSummers-taylor Materials Company Dba Summers Taylor Materials Asphalt Plant #5 | Blountville | TN | — | ◐ LIKELY ACTIVE |
| SMSummers-taylor Materials Company -rogersville Concrete Plant 2 | Rogersville | TN | — | ◐ LIKELY ACTIVE |
| SESuncor Energy - Fruita Terminal | Fruita | CO | — | ◐ LIKELY ACTIVE |
| SCSunmount Corporation | Talladega | AL | — | ◐ LIKELY ACTIVE |
| SISunrock Industries LLC - Burlington North | Burlington (caswell,nc) | NC | — | ◐ LIKELY ACTIVE |
| SISunrock Industries LLC - Butner Asphalt | Butner | NC | — | ◐ LIKELY ACTIVE |
| SISunrock Industries LLC - Prospect Hill Rmc and Distribution | Prospect Hill | NC | — | ◐ LIKELY ACTIVE |
| SSSunset Stone | Castle Rock | CO | 20–99 | ◐ LIKELY ACTIVE |
| SASuperior Asphalt INC | Jackson | MS | — | ◐ LIKELY ACTIVE |
| SASuperior Asphalt Paving INC | Woodhull | IL | — | ◐ LIKELY ACTIVE |
| SPSuperior Paving CORP - Lynchburg Asphalt Plant | Lynchburg | VA | — | ◐ LIKELY ACTIVE |
| SPSuperior Paving Corporation - Centreville Plant | Centreville | VA | — | ◐ LIKELY ACTIVE |
| SPSuperior Paving Corporation - Culpeper Plant | Culpeper | VA | — | ◐ LIKELY ACTIVE |
| SPSuperior Paving Corporation - Spotsylvania Plant | Fredericksburg | VA | — | ◐ LIKELY ACTIVE |
| SPSuperior Paving CORP - Salem Asphalt Plant | Salem | VA | — | ◐ LIKELY ACTIVE |
| SRSuperior Ready Mix Incorporated | Lebanon | MO | — | ◐ LIKELY ACTIVE |
| SPSuperock Products, LLC | Childersburg | AL | — | ◐ LIKELY ACTIVE |
| SESurface Elements, INC. | Saint Joseph | TN | — | ◐ LIKELY ACTIVE |
| SCSwift Construction | Joplin | MO | — | ◐ LIKELY ACTIVE |
| SASwoncott Asphalt | Madison | AL | — | ◐ LIKELY ACTIVE |
| TITampa International Airport Concrete Batch Plant | Tampa | FL | — | ◐ LIKELY ACTIVE |
| TCTanco Clark Maritime LLC | Jeffersonville | IN | — | ◐ LIKELY ACTIVE |
| TPTarheel Paving Company Incorporated | Hendersonville | NC | — | ◐ LIKELY ACTIVE |
| TMTcc Materials | Bow | NH | — | ◐ LIKELY ACTIVE |
| TMTcs Materials LLC – Magnolia Suffolk | Suffolk | VA | — | ◐ LIKELY ACTIVE |
| TMTcs Materials Llc/vulcan Materials CO - Chesapeake | Chesapeake | VA | — | ◐ LIKELY ACTIVE |
| TMTcs Materials - Williamsburg | Williamsburg | VA | — | ◐ LIKELY ACTIVE |
| TMTdps Materials Inc/asphalt Plt | Philadelphia | PA | — | ◐ LIKELY ACTIVE |
| TLTechneglas LLC | Perrysburg | OH | — | ◐ LIKELY ACTIVE |
| TUTechniseal US - Aberdeen Plant | Aberdeen | NC | — | ◐ LIKELY ACTIVE |
| TRTerminal Ready Mix INC | Lorain | OH | — | ◐ LIKELY ACTIVE |
| TVTerra Vaults | Gainesville | TX | 20–99 | ◐ LIKELY ACTIVE |
| TITexas Industries | Dallas | TX | 1–19 | ◐ LIKELY ACTIVE |
| TBThe Bauer Company INC. | Worthington | PA | 20–99 | ◐ LIKELY ACTIVE |
| TRThe Reinforced Earth | Waco | TX | — | ◐ LIKELY ACTIVE |
| TSThe Scruggs Company - Surrency Plant | Surrency | GA | — | ◐ LIKELY ACTIVE |
| TSThe Stavola Companies | Brick Town | NJ | — | ◐ LIKELY ACTIVE |
| TWThe Wells Group LLC | Norton | VA | — | ◐ LIKELY ACTIVE |
| TWThe Wells Group LLC | Vanceburg | KY | — | ◐ LIKELY ACTIVE |
| TWThe Wells Group LLC | Wurtland | KY | — | ◐ LIKELY ACTIVE |
| TWThe Wells Group LLC | Mount Sterling | KY | — | ◐ LIKELY ACTIVE |
| TWThe Wells Group LLC | West Liberty | KY | — | ◐ LIKELY ACTIVE |
| TWThe Wells Group LLC | Flemingsburg | KY | — | ◐ LIKELY ACTIVE |
| TWThe Wells Group LLC - Concrete Supplier | Ashland | KY | — | ◐ LIKELY ACTIVE |
| TCThomas Concrete Bartow Plant #2400 | Cartersville | GA | — | ◐ LIKELY ACTIVE |