| WRWest Ready-mix, Plant 4, Malcolm | Malcolm | AL | — | ◇ UNVERIFIED |
| WRWest Ready Mix, Plant 5 Summerdale | Summerdale | AL | — | ◇ UNVERIFIED |
| WVWest Valley Batch Plant | Kearns | UT | — | ◇ UNVERIFIED |
| WPWetumpka Plant | Wetumpka | AL | — | ◇ UNVERIFIED |
| WRWhistle Redi Mix Inc-holden Site | Holden | MO | — | ◇ UNVERIFIED |
| WCWhite Cap Ready Mix #1 -portola | Portola | CA | — | ◇ UNVERIFIED |
| WCWhite Cap Ready Mix #2 -chester | Chester | CA | — | ◇ UNVERIFIED |
| WRWhite River Sand & Gravel-meeker Pit | Meeker | CO | — | ◇ UNVERIFIED |
| WBWhiteville Building Supplies Incorporated | Whiteville | NC | — | ◇ UNVERIFIED |
| WBWhitewater Building Materials - 940 S 10 | Grand Junction | CO | — | ◇ UNVERIFIED |
| WCWhitley CO Concrete & Supply | Williamsburg | KY | — | ◇ UNVERIFIED |
| WRWieberg Red E Mix | Meta | MO | — | ◇ UNVERIFIED |
| WCWiggins Concrete CO INC Estill | Estill | SC | — | ◇ UNVERIFIED |
| WCWiggins Concrete:hampton | Hampton | SC | — | ◇ UNVERIFIED |
| WRWildcatter Redi-mix Paisano | Fort Worth | TX | — | ◇ UNVERIFIED |
| WIWillcan, Inc. | Calhoun | GA | — | ◇ UNVERIFIED |
| WIWillcan, INC. Dba Basic Ready Mix-calhoun | Calhoun | GA | — | ◇ UNVERIFIED |
| WBWille Brothers CO INC | Monee | IL | — | ◇ UNVERIFIED |
| WBWille Brothers Lemont | Lemont | IL | — | ◇ UNVERIFIED |
| WCWilliamson CO Ready Mix Concrete CO | Nashville | TN | — | ◇ UNVERIFIED |
| WSWilliamson & Sons Marine Construction INC | Cape Coral | FL | — | ◇ UNVERIFIED |
| WRWilliams Ready Mix Products, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| W1Willies 1 Day Cleaners | San Marcos | CA | — | ◇ UNVERIFIED |
| WPWillis Plant | Willis | TX | — | ◇ UNVERIFIED |
| WCWil-mix Concrete Products | Festus | MO | — | ◇ UNVERIFIED |
| WCWilson Concrete Products LLC | Webb City | MO | — | ◇ UNVERIFIED |
| WCWilsonville Concrete Products | Wilsonville | OR | — | ◇ UNVERIFIED |
| WCWilsonville Concrete Products | Beaverton | OR | — | ◇ UNVERIFIED |
| WSWindber Stone Llc/ogletown Quarry | Windber | PA | — | ◇ UNVERIFIED |
| WCWindsor Concrete Co-windsor Concrete CO | Windsor | MO | — | ◇ UNVERIFIED |
| WCWine Concrete Products, INC. | Sewickley | PA | — | ◇ UNVERIFIED |
| WRWingra Redi Mix | Waunakee | WI | — | ◇ UNVERIFIED |
| WPWinkelman Plant #546 | Winkelman | AZ | — | ◇ UNVERIFIED |
| WCWinnemucca Concrete Batch Plant | Winnemucca | NV | — | ◇ UNVERIFIED |
| WAWinters Aggregates | Winters | CA | — | ◇ UNVERIFIED |
| WNWinterville - Nc Rmc | Winterville | NC | — | ◇ UNVERIFIED |
| WBWl Byrne INC | Middleborough | MA | — | ◇ UNVERIFIED |
| WCWoodburn Concrete | Woodburn | OR | — | ◇ UNVERIFIED |
| WPWoodland Plant | Woodland | CA | — | ◇ UNVERIFIED |
| WSWoodruff Supply CO INC | Madisonville | KY | — | ◇ UNVERIFIED |
| WRWoodsboro Ready-mix Concrete Plant | Woodsboro | MD | — | ◇ UNVERIFIED |
| WPWpr - Plant 1 | Milton | FL | — | ◇ UNVERIFIED |
| WRWray Readi Mix INC. | Wray | CO | — | ◇ UNVERIFIED |
| WRW R Forde Associates | Richmond | CA | — | ◇ UNVERIFIED |
| WCWright Concrete Recycling INC | Markham | IL | — | ◇ UNVERIFIED |
| WEWylatti Enterprises LLC Dba Geo Aggregates | Fort Bragg | CA | — | ◇ UNVERIFIED |
| XMXcava Mill, LLC | Progreso | TX | — | ◇ UNVERIFIED |
| XMXpress Materials LLC | Panama City Beach | FL | — | ◇ UNVERIFIED |
| XIXt Incorporated Dba Vanhooseco, Loudon | Loudon | TN | — | ◇ UNVERIFIED |
| YMYager Materials INC | Hawesville | KY | — | ◇ UNVERIFIED |