| SSStandard Supply CO | Maysville | KY | — | ◇ UNVERIFIED |
| SRStanford Ready Mix Concr | Stanford | KY | — | ◇ UNVERIFIED |
| SCStar Concrete | Gilroy | CA | — | ◇ UNVERIFIED |
| SCStar Concrete | San Jose | CA | — | ◇ UNVERIFIED |
| SCStar Concrete Company | Saint Charles | MO | — | ◇ UNVERIFIED |
| SCStar Concrete Co-star Concrete CO | O Fallon | MO | — | ◇ UNVERIFIED |
| SEStark Excavating INC | Bloomington | IL | — | ◇ UNVERIFIED |
| SEStark Excavating INC | Normal | IL | — | ◇ UNVERIFIED |
| SMStark Materials INC | Normal | IL | — | ◇ UNVERIFIED |
| SSStark Services INC | Marengo | IL | — | ◇ UNVERIFIED |
| SRStar Ready Mix INC | Cidra | PR | — | ◇ UNVERIFIED |
| SRStar Ready Mix INC. | Poplar Bluff | MO | — | ◇ UNVERIFIED |
| SIStarvaggi Ind. | Weirton | WV | — | ◇ UNVERIFIED |
| SRState Road Cement Block | Dartmouth | MA | — | ◇ UNVERIFIED |
| SCStationary Concrete Batch Pla | Buffalo | WY | — | ◇ UNVERIFIED |
| SMStavola Materials Oldwick Quarry | Oldwick | NJ | — | ◇ UNVERIFIED |
| SBSteckling Brothers INC | Saint Helen | MI | — | ◇ UNVERIFIED |
| SGSte Genevieve Ready Mix Concrete Inc-perryville Plant | Perryville | MO | — | ◇ UNVERIFIED |
| SCStephens Construction | Luverne | AL | — | ◇ 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 |
| 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 |
| 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 |
| SMSt Martin Land CO #1 Production Facility - Section 28 Oil & Gas Field | Parks | LA | — | ◇ UNVERIFIED |
| SMSt Marys Cement INC | Waukegan | IL | — | ◇ UNVERIFIED |
| SSStockman Stoneworks* | Jefferson City | MO | — | ◇ UNVERIFIED |
| SCStone & CO INC Canonsburg Plt | Canonsburg | PA | — | ◇ UNVERIFIED |
| SCStone & CO Inc/charleroi Plt | Charleroi | PA | — | ◇ UNVERIFIED |
| SCStone & CO Masontown Plt | Masontown | PA | — | ◇ UNVERIFIED |
| SRStone Ready Mix LLC | Perkinston | MS | — | ◇ UNVERIFIED |
| SCStoneway Concrete Houser Way | Renton | WA | — | ◇ UNVERIFIED |
| SRStoskopf Redi-mix of Roseau INC | Roseau | MN | — | ◇ UNVERIFIED |
| SCStrata Concrete-bismarck Heartland | Bismarck | ND | — | ◇ UNVERIFIED |
| SCStrata Concrete-devils Lake | Devils Lake | ND | — | ◇ UNVERIFIED |
| SCStrata Concrete-grafton | Grafton | ND | — | ◇ UNVERIFIED |
| SCStrata Concrete-grand Forks (red River Cement Products) | Grand Forks | ND | — | ◇ UNVERIFIED |
| SCStrata Concrete-mandan | Mandan | ND | — | ◇ UNVERIFIED |
| SCStrata Concrete, Williston West - Strata Corporation | Williston | ND | — | ◇ UNVERIFIED |
| SCStrata Construction-grand Forks Asphalt Plant (nodak Contracting) | Grand Forks | ND | — | ◇ UNVERIFIED |
| SCStrata Corporation | Minot | ND | — | ◇ UNVERIFIED |
| SMStrittmatter Materials, LLC Dba D.c. Materials | Hyattsville | MD | — | ◇ UNVERIFIED |
| SCStuart Concrete Incorporated - Stuart Division | Stuart | VA | — | ◇ UNVERIFIED |
