| SCSunbelt Crushing, LLC. | Mobile | AL | — | ◇ UNVERIFIED |
| SCSunbelt Crushing, LLC. | Defuniak Springs | FL | — | ◇ UNVERIFIED |
| SPSuncoast Post-tension LTD | Woodbridge | VA | — | ◇ UNVERIFIED |
| SDSunworks Decorative Concrete LLC | Annville | PA | — | ◇ UNVERIFIED |
| SCSuper Concrete Company Incorporated | Manassas | VA | — | ◇ UNVERIFIED |
| SCSuperior Concrete Products | Birmingham | AL | — | ◇ UNVERIFIED |
| SCSuperior Construction | Winder | GA | — | ◇ UNVERIFIED |
| SWSuperior Walls of North Dakota, LLC | Bismarck | ND | — | ◇ UNVERIFIED |
| SWSuperior Wall Systems, LLC | Salisbury | NC | — | ◇ UNVERIFIED |
| SCSymons Corp/accessory Products Div | Glenridge | IL | — | ◇ UNVERIFIED |
| TTabbystone | Jacksonville | FL | — | ◇ UNVERIFIED |
| TLTaktl, LLC | Glenshaw | PA | — | ◇ UNVERIFIED |
| TMTcc - Muscatine | Muscatine | IA | — | ◇ UNVERIFIED |
| TCT-clear CORP | Hamilton | OH | — | ◇ UNVERIFIED |
| TPTc Precast INC. | Troy | MO | — | ◇ UNVERIFIED |
| TCTebo Concrete Fence LLC | Florence | TX | — | ◇ UNVERIFIED |
| TCTejas Concrete Products | San Antonio | TX | — | ◇ UNVERIFIED |
| THTerre Hill Concrete /terre Hill | Terre Hill | PA | — | ◇ UNVERIFIED |
| TRTerry R. Watson | Madisonville | TN | — | ◇ UNVERIFIED |
| TETexas Elite Precast & Welding LLC | Dallas | TX | — | ◇ UNVERIFIED |
| TITexas Industrial Precast LLC | San Antonio | TX | — | ◇ UNVERIFIED |
| TITexas Industries, INC. | Shreveport | LA | — | ◇ UNVERIFIED |
| TSTexas Select Concrete, LLC | Bulverde | TX | — | ◇ UNVERIFIED |
| TCThatcher Concrete LLC | Texarkana | TX | — | ◇ UNVERIFIED |
| TAThe Artesia Company | Tulare | CA | — | ◇ UNVERIFIED |
| TCThe Concrete Works Sweeney Mining & Mfg. Co LLC | Wasola | MO | — | ◇ UNVERIFIED |
| TCThe Crom Corporation | Oak Ridge | TN | — | ◇ UNVERIFIED |
 The Euclid Chemical Company | Odessa | FL | — | ◇ UNVERIFIED |
| TLThe Lane Construction Corporation Dba Prestress of | Charlotte | NC | — | ◇ UNVERIFIED |
| TMThe Martinsburg Concrete Products CO. | Martinsburg | WV | — | ◇ UNVERIFIED |
| TCThemed Concepts LLC | Forest Lake | MN | — | ◇ UNVERIFIED |
| TQThe Quikrete Companies INC Dba Quikrete | City of Industry | CA | — | ◇ UNVERIFIED |
| TQThe Quikrete Companies LLC | Jefferson City | TN | — | ◇ UNVERIFIED |
| TQThe Quikrete Companies LLC | Miami | FL | — | ◇ UNVERIFIED |
| TQThe Quikrete Companies - Peachland Plt | Peachland | NC | — | ◇ UNVERIFIED |
| TRThe Reinforced Earth | Waco | TX | — | ◇ UNVERIFIED |
| TSThe Shockey Precast Group | Winchester | VA | — | ◇ UNVERIFIED |
| TSThe Stresscrete Group | Atchison | KS | — | ◇ UNVERIFIED |
| TTThe Turner Company | Maxwell | TX | — | ◇ UNVERIFIED |
| TTThe Turner Company | Rhome | TX | — | ◇ UNVERIFIED |
| TPThompson Pipe Group INC | Rialto | CA | — | ◇ UNVERIFIED |
| TPThompson Pipe Group, INC | Grand Prairie | TX | — | ◇ UNVERIFIED |
| TPThompson Pipe Group Pressure, INC. | Lubbock | TX | — | ◇ UNVERIFIED |
| TLThunderstone LLC | Lincoln | NE | — | ◇ UNVERIFIED |
| TNTilcon New York INC. | Bronx | NY | — | ◇ UNVERIFIED |
| TCTindall Corporation | Wake Forest | NC | — | ◇ UNVERIFIED |
| TCTindall Corporation | Moss Point | MS | — | ◇ UNVERIFIED |
| TCTindall Corp-sc Division | Fairforest | SC | — | ◇ UNVERIFIED |
| TETnt Earthmoving, LLC | Lincoln | NE | — | ◇ UNVERIFIED |
| TCTrans Colo Concrete CO Santa Fe Rr Depot | Colorado Springs | CO | — | ◇ UNVERIFIED |
| TPTraylor Precast Concrete | Littlerock | CA | — | ◇ UNVERIFIED |
| TOTrb Oilfield Services, INC. | Bakersfield | CA | — | ◇ UNVERIFIED |
| TITRDB Investments, LLC | Leetonia | OH | — | ◇ UNVERIFIED |
| TGTremron Group - Medley | Medley | FL | — | ◇ UNVERIFIED |
| TCTri County Concrete INC | Hagerhill | KY | — | ◇ UNVERIFIED |
| TSTrilite Stone INC Dba Trilite Stone Company | Howard Lake | MN | — | ◇ UNVERIFIED |
| TPTrinity Paving | Newington | CT | — | ◇ UNVERIFIED |
| TSTriple S Well Boring Machine, INC. | Catawba | NC | — | ◇ UNVERIFIED |
| TFTrue Finishing LLC | Denver | CO | — | ◇ UNVERIFIED |
| TSTrue Stone Corporation | Jensen Beach | FL | — | ◇ UNVERIFIED |
| TFTyson F. Sartin, INC. | Saint Georges | DE | — | ◇ UNVERIFIED |
| USUnique Stone, INC. | Rockingham | NC | — | ◇ UNVERIFIED |
| UCUnited Commercial Cast Stone | Gainesville | TX | — | ◇ UNVERIFIED |
| UMUnited Memorial Prod- Rose Hills Mem Pk | Whittier | CA | — | ◇ UNVERIFIED |
| URUnited Ready Mix - Platteville | Platteville | CO | — | ◇ UNVERIFIED |
| URUnited Rentals Northwest, INC | Gilroy | CA | — | ◇ UNVERIFIED |
| UCUniversal Crushing | Punta Gorda | FL | — | ◇ UNVERIFIED |
| UPUniversal Precast Concrete, INC. | Redding | CA | — | ◇ UNVERIFIED |
| UPUniversal Precast, Inc. | Troy | AL | — | ◇ UNVERIFIED |
| UPUniversal Precast, Inc. | Pike County | AL | — | ◇ UNVERIFIED |
| UIUnke INC | Oakdale | CA | — | ◇ UNVERIFIED |
| UPUpper Peninsula Concrete Pipe CO | Escanaba | MI | — | ◇ UNVERIFIED |
| UPUpstate Precast LLC | Pelzer | SC | — | ◇ UNVERIFIED |
| URUrbana Recycling CO | Urbana | IL | — | ◇ UNVERIFIED |
| UOUsdol Osha | Alachua | FL | — | ◇ UNVERIFIED |
| UOUsdol Osha - Atlanta West Ao | Hiram | GA | — | ◇ UNVERIFIED |
| UDU.s. Dol-osha Corpus Christi Area Office | Harlingen | TX | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Foley | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Mobile | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Theodore | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha- North Aurora | South Beloit | IL | — | ◇ UNVERIFIED |
| UFUS Formliner, INC. | Comer | GA | — | ◇ UNVERIFIED |
| UGUS Gypsum CO | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| UMUS Mix | Fontana | CA | — | ◇ UNVERIFIED |
| UWUtah Wilbert Vault Company, INC | West Valley City | UT | — | ◇ UNVERIFIED |
| USUtilities Structures, INC. | Fort Myers | FL | — | ◇ UNVERIFIED |
| UCUtility Concrete Products | Plainfield | IL | — | ◇ UNVERIFIED |
| UVUtility Vault | Livermore | CA | — | ◇ UNVERIFIED |
| VCVa Cast Stone INC. | Waynesboro | VA | — | ◇ UNVERIFIED |
| VLValcrete - Limon Plant | Limon | CO | — | ◇ UNVERIFIED |
| VBValente Builders, Inc. | Hudson Falls | NY | — | ◇ UNVERIFIED |
| VBValley Building Supply, INC. | Luray | VA | — | ◇ UNVERIFIED |
| VPValley Precast, INC. | Buena Vista | CO | — | ◇ UNVERIFIED |
| VNValmont Newmark, INC | Tuscaloosa | AL | — | ◇ UNVERIFIED |
| VNValmont Newmark Incorporated | Bristol | IN | — | ◇ UNVERIFIED |
| VNValmont Newmark Small Pole Facility | Fort Meade | FL | — | ◇ UNVERIFIED |
| VUValmont Utility | Bartow | FL | — | ◇ UNVERIFIED |
| VBVarco-pruden Buildings | Kernersville | NC | — | ◇ UNVERIFIED |
| VFVesuvian Forge LLC | Mcminnville | OR | — | ◇ UNVERIFIED |
| VIVfp Incorporated/concrete Shelter Division | Duffield | VA | — | ◇ UNVERIFIED |
