| LWLafarge Woody Creek Ready Mix | Woody Creek | CO | — | ◇ UNVERIFIED |
| LDLagoon Drive Ready Mix | Rock Springs | WY | — | ◇ UNVERIFIED |
| LCLamar Concrete INC | Purvis | MS | — | ◇ UNVERIFIED |
| LILambcon, INC. | Ooltewah | TN | — | ◇ UNVERIFIED |
| LILambcon, INC. Greenback Division | Lenoir | TN | — | ◇ UNVERIFIED |
| LCLandrieu Concrete & Cement Industries LLC - Gentilly Concrete Plant Gentilly Pla | New Orleans | LA | — | ◇ UNVERIFIED |
| LRLandvatter Ready Mix-barrett Station Road | Saint Louis | MO | — | ◇ UNVERIFIED |
| LRLandvatter Ready Mix Market | Saint Louis | MO | — | ◇ UNVERIFIED |
| LRLane Ready Mix | Sumiton | AL | — | ◇ UNVERIFIED |
| LRLane Ready Mix Concrete | Jasper | AL | — | ◇ UNVERIFIED |
| LCLanier Construction:lexington Concrete | Lexington | SC | — | ◇ UNVERIFIED |
| LRLargo Ready Mix Plant | Largo | FL | — | ◇ UNVERIFIED |
| LCLarry Chisum Construction Concrete Batch Plant | Leakey | TX | — | ◇ UNVERIFIED |
| LALas Animas Concrete & Bldg Su | Santa Cruz | CA | — | ◇ UNVERIFIED |
| LCLatco Concrete Products Incorporated | Forest City | NC | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Blue Mound Rm | Fort Worth | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Dallas Dt Rm | Dallas | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Dallas Rm | Dallas | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Denton | Denton | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Lewisville Rm | Lewisville | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Melissa Rm | Melissa | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Plano Rm | Plano | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Roanoke Rm | Roanoke | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Rockwall Rm | Rockwall | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Royse City Rmx | Royse City | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials CORP - Wylie Rm | Lavon | TX | — | ◇ UNVERIFIED |
| LMLattimore Materials South Dallas Rmx | Dallas | TX | — | ◇ UNVERIFIED |
| LRLaurie Ready-mix | Laurie | MO | — | ◇ UNVERIFIED |
| L1Lavergne-plant 14 | La Vergne | TN | — | ◇ UNVERIFIED |
| LRLawrence-lynch Realty CORP | Falmouth | MA | — | ◇ UNVERIFIED |
| LCLawson Construction - 22-906 | Loveland | CO | — | ◇ UNVERIFIED |
| LRLawson Redi-mix INC | Nashville | TN | — | ◇ UNVERIFIED |
| LCLee's Concrete | Bangor | ME | — | ◇ UNVERIFIED |
| LSLee's Summit Municipal Airport | Lees Summit | MO | — | ◇ UNVERIFIED |
| LGLe Grand Johnson Construction Logan Shop | Logan | UT | — | ◇ UNVERIFIED |
| LCLemay Concrete Block-lemay Concrete Block | Saint Louis | MO | — | ◇ UNVERIFIED |
| LBLeonard Block Company | Winston Salem | NC | — | ◇ UNVERIFIED |
 Leo O'laughlin Inc-macon | Macon | MO | — | ◇ UNVERIFIED |
| Leo O'laughlin Inc-marceline | Marceline | MO | — | ◇ UNVERIFIED |
| LPLewisville Plant | Lewisville | TX | — | ◇ UNVERIFIED |
| LIL&g Industries 2326 Wolf Ridge Rd | Whistler | AL | — | ◇ UNVERIFIED |
| LHLiberty Holdings | Grimes | IA | — | ◇ UNVERIFIED |
| LRLiberty Ready Mix - Grimes | Grimes | IA | — | ◇ UNVERIFIED |
| LRLiberty Ready Mix INC | Jamaica | NY | — | ◇ UNVERIFIED |
| LRLiberty Ready Mix - Van Meter Facility | Van Meter | IA | — | ◇ UNVERIFIED |
| LBLightweight Block CO | Lynchburg | VA | — | ◇ UNVERIFIED |
| LBLightweight Block Lexington Corporation | Lexington | NC | — | ◇ UNVERIFIED |
| LQLimestone Quarry Plant | Madison | AL | — | ◇ UNVERIFIED |
| LCLincoln County Ready Mix | Stanford | KY | — | ◇ UNVERIFIED |
| LCLincoln County Ready Mix INC | Danville | KY | — | ◇ UNVERIFIED |
