| WMWestern Mobile Denver INC | Golden | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile INC | Greeley | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile INC | Boulder | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Avon Plt | Avon | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Bayfield Pit | Walden 18.5 Mi. Se of | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Craig Plt | Craig | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Glenwood Plant | Glenwood Springs | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern INC | Denver | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern INC | El Paso County | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern (mtn Mobile Mix) | Meeker | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Prospect Plt | Fort Collins | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Was Flatirons Concrete | Fort Collins | CO | — | ◇ UNVERIFIED |
| WNWestern Nevada Materials - Spanish Springs | Sparks | NV | — | ◇ UNVERIFIED |
| WNWestern Ny Concrete CORP. | Batavia | NY | — | ◇ UNVERIFIED |
| WPWestern Paving #2 | Westminster | CO | — | ◇ UNVERIFIED |
| WPWestern Paving.cn | Arvada | CO | — | ◇ UNVERIFIED |
| WPWestern Paving Const.cn | Golden | CO | — | ◇ UNVERIFIED |
 Western Ready Mix Concrete | Orland | CA | — | ◇ UNVERIFIED |
| Western Ready Mix Concrete CO | Red Bluff, Ca | CA | — | ◇ UNVERIFIED |
| Western Ready Mix Concrete INC. | Colusa | CA | — | ◇ UNVERIFIED |
| Western Ready Mix, INC (orland) | Hamilton City | CA | — | ◇ UNVERIFIED |
| Western Ready Mix,inc (willows) | Willows | CA | — | ◇ UNVERIFIED |
| WRWestern Refining CO | Phoenix | AZ | — | ◇ UNVERIFIED |
| WRWestern Rock Products | Saint George | UT | — | ◇ UNVERIFIED |
| WRWestern Rock Products Corporation- Fort Pierce Pit | Saint George | UT | — | ◇ UNVERIFIED |
| WRWestern Rock Products Corporation- Sorenson Pit | Saint George | UT | — | ◇ UNVERIFIED |
| WSWestern Sand and Gravel CO LLC | Spring Valley | IL | — | ◇ UNVERIFIED |
| WSWestern Sand & Gravel CO | Mendota | IL | — | ◇ UNVERIFIED |
| WSWestern Slope Aggregate | Carbondale | CO | — | ◇ UNVERIFIED |
| WSWestern Slope Concrete Aka Beaver Bros. | Craig | CO | — | ◇ UNVERIFIED |
| WSWestern States Wholesale INC Dba Patio Industries | Ontario | CA | — | ◇ UNVERIFIED |
| WSWestern Stone Products INC | Modesto | CA | — | ◇ UNVERIFIED |
| WSWestern Stone Products INC | Hughson | CA | — | ◇ UNVERIFIED |
| WAWestfall Aggregate and Materials, INC. (0165010135) | Circleville | OH | — | ◇ UNVERIFIED |
| WRWestfield Ready Mix INC | Westfield | MA | — | ◇ UNVERIFIED |
| WGWest Georgia Industries | Lagrange | GA | — | ◇ UNVERIFIED |
| WIWestile INC | Casa Grande | AZ | — | ◇ UNVERIFIED |
| WEWestinghouse Electric CO. L.l.c. | Hematite | MO | — | ◇ UNVERIFIED |
| WKWest Kentucky Asphalt and Materials | Murray | KY | — | ◇ UNVERIFIED |
| WKWest Ky Pavers INC | Hopkinsville | KY | — | ◇ UNVERIFIED |
| WLWest Lake Quarry & Material | Bridgeton | MO | — | ◇ UNVERIFIED |
| WRWestlake Royal Stone LLC | San Marcos | CA | — | ◇ UNVERIFIED |
| WLWest Land and Equipment, LLC | Jefferson City | MO | — | ◇ UNVERIFIED |
| WPWestover Plant | Westover | AL | — | ◇ UNVERIFIED |
| WRWest Ranch Aggregate - Port Generator | Rocky Ford Area | CO | — | ◇ UNVERIFIED |
| WRWest Ready Mix, INC. | Helenwood | TN | — | ◇ UNVERIFIED |
| WRWest Ready-mix, Plant 2, Loxley Plant | Loxley | AL | — | ◇ UNVERIFIED |
| WRWest Ready-mix, Plant 4, Malcolm | Malcolm | AL | — | ◇ UNVERIFIED |
| WRWest Ready Mix, Plant 5 Summerdale | Summerdale | AL | — | ◇ UNVERIFIED |
| WCWestside Collection, LLC | Los Angeles | CA | — | ◇ UNVERIFIED |
