| SCStationary Concrete Batch Pla | Buffalo | WY | — | ◇ UNVERIFIED |
| SCStationary Concrete Batch Plant | Albany | WY | — | ◇ UNVERIFIED |
| SHStationary Hot Mix Asphalt Plant (ct-1200) | Park County | WY | — | ◇ UNVERIFIED |
| SHStationary Hot Mix Asphalt Plant (md-14327) | Laramie | WY | — | ◇ UNVERIFIED |
| SSStat Services | Laguna Hills | CA | — | ◇ UNVERIFIED |
| SAStavola Asphalt CO INC Howell Facility | Howell | NJ | — | ◇ UNVERIFIED |
| SMStavola Materials Oldwick Quarry | Oldwick | NJ | — | ◇ UNVERIFIED |
| SNStavola Newark Terminal | Newark | NJ | — | ◇ UNVERIFIED |
| SRStavola - Rosano Asphalt | Howell Twp | NJ | — | ◇ UNVERIFIED |
| STS T Bunn Construction CO | Fayette | AL | — | ◇ UNVERIFIED |
| STS T Bunn Construction CO | Eutaw | AL | — | ◇ UNVERIFIED |
| SBSteckling Brothers INC | Saint Helen | MI | — | ◇ UNVERIFIED |
| SISteelstone Industries, INC. - Houlton | Houlton | ME | — | ◇ UNVERIFIED |
| SGSte Genevieve Ready Mix Concrete Inc-perryville Plant | Perryville | MO | — | ◇ UNVERIFIED |
| SRStellar Resources, LLC | Torrance | CA | — | ◇ UNVERIFIED |
| SGStemilt Growers Miller Street Facility | Wenatchee | WA | — | ◇ UNVERIFIED |
| SCStephens Construction | Luverne | AL | — | ◇ UNVERIFIED |
| SIStepstone, INC. | Los Angeles | CA | — | ◇ UNVERIFIED |
| SPSterling Purchasing CORP Dba Sterling Manufacturing | Sarasota | FL | — | ◇ UNVERIFIED |
| SRSterling Ready Mix Concrete CO | Lamar | CO | — | ◇ UNVERIFIED |
| SRSterling Ready Mix Concrete Co.cn | Kit Carson | CO | — | ◇ UNVERIFIED |
| SRSterling-rockfalls Ready Mix | Dixon | IL | — | ◇ UNVERIFIED |
| SVSterling Ventures LLC | Verona | KY | — | ◇ UNVERIFIED |
| SWSterling Wilbert Vault CO | Sterling | IL | — | ◇ UNVERIFIED |
| SCSteven CO. Asphalt Plant (stormwater) | Hugoton | KS | — | ◇ UNVERIFIED |
| SCSteven Counts, INC. Fka Harlis Ellington | Ocala | FL | — | ◇ UNVERIFIED |
| SSSteven Smith | Encino | CA | — | ◇ UNVERIFIED |
| SLStevenson-weir Lockhart | Union | SC | — | ◇ UNVERIFIED |
| SSStevenson-weir Southern - Clinton Plant | Clinton | SC | — | ◇ UNVERIFIED |
| SLStevenson-weir/southern LLC - Sws Vince Hagan | Fort Lawn | SC | — | ◇ UNVERIFIED |
| SSStevenson-weir Southern - Spartanburg Plant | Wellford | SC | — | ◇ UNVERIFIED |
| STStevenson-weir/southern - Texland | Charlotte | NC | — | ◇ UNVERIFIED |
| SRStewart-morrison Redi-mix | West Plains | MO | — | ◇ UNVERIFIED |
| SNStewart & Nuss | Fresno | CA | — | ◇ UNVERIFIED |
| SHSt. Henry Tile Co., INC. | Greenville | OH | — | ◇ UNVERIFIED |
| SHSt Henry Tile CO INC Dba Keystone Concrete | Churubusco | IN | — | ◇ UNVERIFIED |
| SRStillwell Ready Mix & Building Materials LLC | Brooklyn | NY | — | ◇ UNVERIFIED |
| SPSti Precast | Leominster | MA | — | ◇ UNVERIFIED |
| SJSt. Joe Concrete Products | Elwood | KS | — | ◇ UNVERIFIED |
| SJSt. Johns Precast, INC. | Saint Augustine | FL | — | ◇ UNVERIFIED |
| SJSt Joseph Fuel Oil Co-st Joseph Fuel Oil CO | Saint Joseph | MO | — | ◇ UNVERIFIED |
| SLSt Louis Flexicore INC | East Saint Louis | IL | — | ◇ UNVERIFIED |
| SMSt Martin Land CO #1 Production Facility - Section 28 Oil & Gas Field | Parks | LA | — | ◇ UNVERIFIED |
| SMSt Marys Cement INC | Waukegan | IL | — | ◇ UNVERIFIED |
| SAStocker & Allaire INC | Pebble Beach | CA | — | ◇ UNVERIFIED |
| SSStockman Stoneworks* | Jefferson City | MO | — | ◇ UNVERIFIED |
| SIStollberg INC | Niagara Falls | NY | — | ◇ UNVERIFIED |
| SLStonecasters LLC | Wauconda | IL | — | ◇ UNVERIFIED |
| SCStone Cast, INC. | Houston | TX | — | ◇ UNVERIFIED |
| SCStoneco CO Plant# 125 (0388000036) | Carey | OH | — | ◇ UNVERIFIED |