| SPStaker & Parson California Ready-mix Concrete | Salt Lake City | UT | — | ◇ UNVERIFIED |
| SPStaker & Parson Companies INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| SPStaker & Parson Companies- Lehi-peck Pit | Lehi | UT | — | ◇ UNVERIFIED |
| SPStaker Parson Dba Idaho Materials and Construction 00633 | Nampa | ID | — | ◇ UNVERIFIED |
| SPStaker Parson Materials & Construction - Heber Binggeli Pit | Charleston | UT | — | ◇ UNVERIFIED |
| SCStaley Consolidated Ready Mix INC | Pekin | IL | — | ◇ UNVERIFIED |
| SIStaleys Interstate Ready-mix Concrete | Peoria | IL | — | ◇ UNVERIFIED |
| SCStamm Contracting Co., INC | Mantua | OH | — | ◇ UNVERIFIED |
| SBStandard Block Company, Inc. | Newnan | GA | — | ◇ UNVERIFIED |
| SCStandard Concrete Products | Columbus | GA | — | ◇ UNVERIFIED |
| SCStandard Concrete Products in | Lake Forest | CA | — | ◇ UNVERIFIED |
| SMStandard Materials Group, INC. | Bixby | OK | — | ◇ UNVERIFIED |
| SMStandard Materials Group, INC. Pryor | Pryor | OK | — | ◇ UNVERIFIED |
| SPStandard Precast, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| SRStandard Ready Mix - Sergeant Bluff Plant | Sergeant Bluff | IA | — | ◇ UNVERIFIED |
| SSStandard Sand & Silica Company | Lake Wales | FL | — | ◇ UNVERIFIED |
| SSStandard Supply CO | Maysville | KY | — | ◇ UNVERIFIED |
| SRStanford Ready Mix Concr | Stanford | KY | — | ◇ UNVERIFIED |
| SCStar Concrete | San Jose | CA | — | ◇ UNVERIFIED |
| SCStar Concrete | Gilroy | 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 |
| SCState Crushing, INC. | Auburn Hills | MI | — | ◇ UNVERIFIED |
| SCState Crushing, Inc.-east | Warren | MI | — | ◇ 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 |
| SIStepstone, INC. | Los Angeles | CA | — | ◇ 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 |
| SWSterling Wilbert Vault CO | Sterling | 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 |
| SPSti Precast | Leominster | MA | — | ◇ UNVERIFIED |
| SJSt. Joe Concrete Products | Elwood | KS | — | ◇ UNVERIFIED |
| SJSt. Johns Precast, INC. | Saint Augustine | FL | — | ◇ 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 |
| SSStockman Stoneworks* | Jefferson City | MO | — | ◇ UNVERIFIED |
| SCStone Cast, INC. | Houston | TX | — | ◇ UNVERIFIED |
| SCStone & CO INC Canonsburg Plt | Canonsburg | PA | — | ◇ UNVERIFIED |
| SCStone & CO Inc/charleroi Plt | Charleroi | PA | — | ◇ UNVERIFIED |
| SCStone & CO Masontown Plt | Masontown | PA | — | ◇ UNVERIFIED |
| SDStonemark Designs, Inc. | Huntsville | TX | — | ◇ UNVERIFIED |
| SRStone Ready Mix LLC | Perkinston | MS | — | ◇ UNVERIFIED |
| SSStone Specialties, INC. | Lakeland | FL | — | ◇ UNVERIFIED |
| SSStone Spirit, INC. | Orlando | FL | — | ◇ UNVERIFIED |
| STStone Technology Distributors, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| SCStoneway Concrete Houser Way | Renton | WA | — | ◇ UNVERIFIED |
| SAStoneworks Architectural Precast INC | Elk River | MN | — | ◇ UNVERIFIED |
| SOStoneworks of Manatee INC | Bradenton | FL | — | ◇ UNVERIFIED |
| SYStone Yard | San Diego | CA | — | ◇ 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 |
| SCStress Con | Kalamazoo | MI | — | ◇ UNVERIFIED |
| SIStress-con Industries INC | Saginaw | MI | — | ◇ UNVERIFIED |
| SMStrittmatter Materials, LLC Dba D.c. Materials | Hyattsville | MD | — | ◇ UNVERIFIED |
| SPStructural Plank Industries INC Carroll Shelby | Sebring | FL | — | ◇ UNVERIFIED |
| SPStructural Prestressed Industries INC. | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| SPStructural Prestressed Industries, INC. | Miami | FL | — | ◇ UNVERIFIED |
| SPStructural Prestressed Industries, INC. | Miami | FL | — | ◇ UNVERIFIED |
| SCStuart Concrete Incorporated - Stuart Division | Stuart | VA | — | ◇ UNVERIFIED |
| STS. T. Wooten Corp- Garner Concrete Plant # 11 | Garner | NC | — | ◇ UNVERIFIED |
| STS T Wooten Corporation | Garner | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation | Wilmington | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation/apex Plant -plant No. 18 | Apex | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation - Beaufort | Beaufort | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation - Goldsboro | Goldsboro | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation - Hubert | Hubert | NC | — | ◇ UNVERIFIED |
| STS T Wooten Corporation - Newport | Newport | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation, Plant 7 | Raleigh | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation - Plant 9 | Raleigh | NC | — | ◇ UNVERIFIED |
| STS T Wooten Corporation - Plant No 3 | Wilsons Mills | NC | — | ◇ UNVERIFIED |
| STS. T. Wooten Corporation - Wilson Mills Plant No 3 | Clayton | NC | — | ◇ UNVERIFIED |
