| TCTri Circle Pavers INC | Fort Myers | FL | — | ◇ UNVERIFIED |
| TCTri County Concrete INC | Hagerhill | KY | — | ◇ UNVERIFIED |
| TDTri Delta a Division of Superlite | North Las Vegas | NV | — | ◇ UNVERIFIED |
| TLTri-krete Limited | Poughkeepsie | NY | — | ◇ UNVERIFIED |
| TSTrilite Stone INC Dba Trilite Stone Company | Howard Lake | MN | — | ◇ UNVERIFIED |
| TPTrinity Paving | Newington | CT | — | ◇ UNVERIFIED |
| TFTrue Finishing LLC | Denver | CO | — | ◇ UNVERIFIED |
| TSTrue Stone Corporation | Jensen Beach | FL | — | ◇ UNVERIFIED |
| TWT W Sherman Heirs 15 #3 Facility | Haynesville | LA | — | ◇ UNVERIFIED |
| TFTyson F. Sartin, INC. | Saint Georges | DE | — | ◇ UNVERIFIED |
| UCUnion Concrete Products | Maxwelton | WV | — | ◇ UNVERIFIED |
| USUnique Stone, INC. | Rockingham | NC | — | ◇ UNVERIFIED |
| UBUnited Block CO. | Chicora | PA | — | ◇ 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. | Pike County | AL | — | ◇ UNVERIFIED |
| UPUniversal Precast, Inc. | Troy | AL | — | ◇ UNVERIFIED |
| UIUnke INC | Oakdale | CA | — | ◇ UNVERIFIED |
| UUnknown | Miami | FL | — | ◇ 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- Hasbrouck Heights | Lyndhurst | NJ | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Mobile | AL | — | ◇ UNVERIFIED |
| UOUsdol Osha - (mobile) | Foley | 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 | Fort Myers | FL | — | ◇ UNVERIFIED |
| USUtilities Structures, INC. | Fort Myers | FL | — | ◇ UNVERIFIED |
| UCUtility Concrete Products | Plainfield | IL | — | ◇ UNVERIFIED |
| VCVa Cast Stone INC. | Waynesboro | VA | — | ◇ UNVERIFIED |
| VLValcrete - Limon Plant | Limon | CO | — | ◇ UNVERIFIED |
| VBValente Builders, Inc. | Hudson Falls | NY | — | ◇ UNVERIFIED |
| VBValley Block Loveland Facility | Loveland | CO | — | ◇ 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 |
| VSVan Smith Block Plant | Summerville | SC | — | ◇ UNVERIFIED |
| VBVarco-pruden Buildings | Kernersville | NC | — | ◇ UNVERIFIED |
| VFVesuvian Forge LLC | Mcminnville | OR | — | ◇ UNVERIFIED |
| VIVfp Incorporated/concrete Shelter Division | Duffield | VA | — | ◇ UNVERIFIED |
| VIVfp Incorporated - Duffield Concrete Division | Duffield | VA | — | ◇ UNVERIFIED |
| VBVhi Building Specialties, INC. | Rochester | NY | — | ◇ UNVERIFIED |
| VPVictoria Precision Products INC. | Inez | TX | — | ◇ UNVERIFIED |
| VCVOCO Corp. | Lincoln | RI | — | ◇ UNVERIFIED |
| VCVotorantim Cimentos North America, INC. | Spring Hill | FL | — | ◇ UNVERIFIED |
| VMV&p Management and Development V.p.m.d., L.l.c. | Moca | PR | — | ◇ UNVERIFIED |
| VRV & R Materials LLC | Calumet City | IL | — | ◇ UNVERIFIED |
| VMVsi Mobilmix | Fort Myers | FL | — | ◇ UNVERIFIED |
| VMVulcan Materials:columbia Quarry | Columbia | SC | — | ◇ UNVERIFIED |
| VMVulcan Materials Company, Florida Rock Division | Bartow | FL | — | ◇ UNVERIFIED |
| VMVulcan Materials Company, Florida Rock Division | Kissimmee | FL | — | ◇ UNVERIFIED |
| WHWa317935400 - H2 Pre-cast INC | East Wenatchee | WA | — | ◇ UNVERIFIED |
| WMWa317935881 - Mutual Materials Company | Kent | WA | — | ◇ UNVERIFIED |
| WSWa317936752 - Shope Enterprises INC | Puyallup | WA | — | ◇ UNVERIFIED |
| WMWa317937176 - Mutual Materials Company | Mica | WA | — | ◇ UNVERIFIED |
| WSWa317939109 - Shope Enterprises INC | Redmond | WA | — | ◇ UNVERIFIED |
| WHWa317939400 - H2 Pre-cast INC | Moses Lake | WA | — | ◇ UNVERIFIED |
| WUWa317941422 - Ultrablock INC | Vancouver | WA | — | ◇ UNVERIFIED |
| WCWa317941807 - Cpm Development CORP | Spokane | WA | — | ◇ UNVERIFIED |
| WPWa317942930 - Precast By Design INC | Elk | WA | — | ◇ UNVERIFIED |
| WCWa317944436 - Cxt Incorporated | Spokane | WA | — | ◇ UNVERIFIED |
| WGWa317945527 - Granite Precasting & Concrete INC | Sedro Woolley | WA | — | ◇ UNVERIFIED |
| WMWa317947207 - M 1 Tanks INC | Moses Lake | WA | — | ◇ UNVERIFIED |
| WOWa317948681 - Oldcastle Precast INC | Port Orchard | WA | — | ◇ UNVERIFIED |
| WEWa317948791 - Eastern Washington Cremation & Burial Vault | Wenatchee | WA | — | ◇ UNVERIFIED |
| WCWa317949239 - Cuz Concrete Products INC | Arlington | WA | — | ◇ UNVERIFIED |
| WOWa317950755 - Ornamental Stone INC | Allyn | WA | — | ◇ UNVERIFIED |
| WGWa317950881 - Greenman Stone LTD | Cashmere | WA | — | ◇ UNVERIFIED |
| WCWahoo Concrete Products | Wahoo | NE | — | ◇ UNVERIFIED |
| WCWahoo Concrete Products, INC. | Albion | NE | — | ◇ UNVERIFIED |
| WCWaite Concrete Products LLC | Canby | OR | — | ◇ UNVERIFIED |
| WIWalker Industries LTD | Puunene | HI | — | ◇ UNVERIFIED |
| WPWarrens Pre Cast Concrete | Reeds Spring | MO | — | ◇ UNVERIFIED |
| WCWatkins Concrete Block CO | Omaha | NE | — | ◇ UNVERIFIED |
| WTWausau Tile INC | Wausau | WI | — | ◇ UNVERIFIED |
| WCWebber Construction Yard | White Hall | AR | — | ◇ UNVERIFIED |
| WPWeed Precast LLC | Newport | NH | — | ◇ UNVERIFIED |
| WBWelch Bros INC | Cary | IL | — | ◇ UNVERIFIED |
| WWells | Valders | WI | — | ◇ UNVERIFIED |
| WCWells Concrete - Architectural Plant | Denver | CO | — | ◇ UNVERIFIED |
| WCWells Concrete - St. Hilaire | Thief River Falls | MN | — | ◇ UNVERIFIED |
| WCWells Conrete | Grand Forks | ND | — | ◇ UNVERIFIED |
| WWWells & Wells Septic Tank Mfg and Pipe Sales | Anniston | AL | — | ◇ UNVERIFIED |
| WAWestern Architectural Services, LLC | Draper | UT | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Glenwood Plant | Glenwood Springs | CO | — | ◇ UNVERIFIED |
| WSWestern States Wholesale INC Dba Patio Industries | Ontario | CA | — | ◇ UNVERIFIED |