| 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 |
| LVLawrenceburg Vault Company | Lawrenceburg | 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 |
| LCLincolnland Concrete INC | New Berlin | IL | — | ◇ UNVERIFIED |
| LCLincolnland Concrete INC | Springfield | IL | — | ◇ UNVERIFIED |
| LPLindsay Precast LLC - Dacono | Dacono Area | CO | — | ◇ UNVERIFIED |
| LRLittle Rock Wilbert Burial Vault CO. | Alexander | AR | — | ◇ UNVERIFIED |
| LRLivingston Ready Mix, LLC | Livingston | TN | — | ◇ UNVERIFIED |
| LCLivingston's Concrete Service INC | Olivehurst | CA | — | ◇ UNVERIFIED |
| LJL & J Asphalt - London | London | KY | — | ◇ UNVERIFIED |
| LPLj Properties of Wisconsin LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| LCLmp Concrete, INC. | Pink Hill | NC | — | ◇ UNVERIFIED |
| LCLn Concrete Materials Cor | Erlanger | KY | — | ◇ UNVERIFIED |
| LSLoch Sand and Construction Company | Maryville | MO | — | ◇ UNVERIFIED |
| LMLockheed Martin Aeronautical Company | Meridian | MS | — | ◇ UNVERIFIED |
| LCLoflin Concrete CO. -- Pisgah Church Rd. | Kernersville | NC | — | ◇ UNVERIFIED |
