| STShipping Terminal | Salt Lake City | UT | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SCSika Corporation | Elko | NV | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SCSika Corporation | Marion | OH | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SRSoutheast Ready Mix, LLC | Garden City | GA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SFStaff Force, INC. | Houston | TX | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SPStucco Plant | Big Horn | WY | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SCSuperb Curb | Cape Coral | FL | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SMSuperior Mobile Concrete LLC | Piedmont | SC | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SISurplus Items INC | Seattle | WA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TRTehachapi Rmc | Tehachapi | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TATeichert Aggregates | Roseville | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TLTexas Lehigh Cement Company LP | Buda | TX | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TATitan American LLC | Delray Beach | FL | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TSTitusville Supply Company | Titusville | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TMTransit Mix CORP. | Brooklyn | NY | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TITreffinger Inc. | Garland | TX | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TRTriangle Rock Products | Fowler | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TPTriCircle Pavers, Inc. | Bartow | FL | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| TTTrue Texas Concrete LLC | Houston | TX | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| USUnderground Supply, Inc. | Whately | MA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| UCUniversal Cement LLC | Chicago | IL | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| UCUS Cement, LLC | Perry | GA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Phenix City | AL | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| VCVanDerVart Concrete Products, LLC | Sheboygan | WI | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| VPVcna Prairie Illinois Building Materials LLC Yard 1032 | Chicago | IL | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| VCVOCO Corp. | Lincoln | RI | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| WLWa317940355 - Lafarge North America INC | Vancouver | WA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| WVWashburn Vault Company Inc. | Hinsdale | NH | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| WCWayne County Highway Dept Bin 3314620 | Palmyra | NY | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| WSWestern States Wholesale INC Dba Patio Industries | Ontario | CA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| WPWheatland Plant | Platte | WY | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
