| LCLangston Concrete - Langston Redi Mix | Florence | CO | — | ◇ UNVERIFIED |
| LCLanier Construction:lexington Concrete | Lexington | SC | — | ◇ UNVERIFIED |
| LSLan Se, LLC Dba Gate Precast Company | Ashland City | TN | — | ◇ UNVERIFIED |
| LSLan Se, LLC Dba Gate Precast-jacksonville, Fl | Jacksonville | FL | — | ◇ UNVERIFIED |
| LSLan Se, LLC Dba Gate Precast-kissimmee, Fl | Kissimmee | FL | — | ◇ UNVERIFIED |
| LCLaplace Concrete INC | Laplace | LA | — | ◇ UNVERIFIED |
| LPLa Plata Ready Mix Concrete | La Plata | MD | — | ◇ UNVERIFIED |
| LBLaramie Batch Plant | Albany County | WY | — | ◇ UNVERIFIED |
| LCLaramie Concrete Batch Plant | Albany | WY | — | ◇ UNVERIFIED |
| LCLargo Concrete | San Jose | CA | — | ◇ UNVERIFIED |
| LILarms INC | Oakland | CA | — | ◇ UNVERIFIED |
| LELarry E. Knight, INC. | Glyndon | MD | — | ◇ UNVERIFIED |
| LJLarry Jacinto Construction, INC. | Redlands | CA | — | ◇ UNVERIFIED |
| LALas Animas Concrete & Bldg Su | Santa Cruz | CA | — | ◇ UNVERIFIED |
| LCLatco Concrete Products Incorporated | Forest City | NC | — | ◇ UNVERIFIED |
| LLat/long_used | Temecula | CA | — | ◇ UNVERIFIED |
| LMLattimore Materials Humble Portable Rmx | Humble | TX | — | ◇ UNVERIFIED |
| LRLaurie Ready-mix | Laurie | MO | — | ◇ UNVERIFIED |
| LRLawrence-lynch Realty CORP | Falmouth | MA | — | ◇ UNVERIFIED |
| LRLawrence Ready Mix | Plympton | MA | — | ◇ UNVERIFIED |
| LRLawrence Redi Mix | Bridgewater | MA | — | ◇ UNVERIFIED |
| LCLawson Construction CO | Lincoln County | CO | — | ◇ UNVERIFIED |
| LRLawson Redi-mix INC | Nashville | TN | — | ◇ UNVERIFIED |
| LFL.b. Foster Company | Tucson | AZ | — | ◇ UNVERIFIED |
| LCLci Concrete INC | Macomb | IL | — | ◇ UNVERIFIED |
| LCLci Concrete INC | Colchester | IL | — | ◇ UNVERIFIED |
| LCLci Concrete INC | Beardstown | IL | — | ◇ UNVERIFIED |
| LCLci Concrete INC | Laharpe | IL | — | ◇ UNVERIFIED |
| LSLc Services | Fresno | CA | — | ◇ UNVERIFIED |
| LBLeblanc Brothers Ready Mix, INC. | Houma | LA | — | ◇ UNVERIFIED |
| LILeco Industries | Las Cruces | NM | — | ◇ UNVERIFIED |
| LPLedgeview Precast Concrete INC. | Fond Du Lac | WI | — | ◇ UNVERIFIED |
| LFLee Farms Excavating INC | Paxton | IL | — | ◇ UNVERIFIED |
| LCLee's Concrete | Bangor | ME | — | ◇ UNVERIFIED |
| LCLee's Concrete Materials | Madera | CA | — | ◇ UNVERIFIED |
| LPLees Precast Concrete Inc. | Aberdeen | MS | — | ◇ UNVERIFIED |
| LSLee's Summit Municipal Airport | Lees Summit | MO | — | ◇ UNVERIFIED |
| LRLegacy Ready-Mix LLC | Irving | TX | — | ◇ UNVERIFIED |
| LVLegacy Vulcan CORP | Perry | FL | — | ◇ UNVERIFIED |
| LVLegacy Vulcan Corporation | Yulee | FL | — | ◇ UNVERIFIED |
| LVLegacy Vulcan Corporation | Newport News | VA | — | ◇ UNVERIFIED |
| LCLehigh Cement CO | Portland | OR | — | ◇ UNVERIFIED |
| LHLehigh Hanson, INC. Dba Hanson Aggregates | Goleta | CA | — | ◇ UNVERIFIED |
| LSLehigh Southwest Cement Company | Fresno | CA | — | ◇ UNVERIFIED |
| LSLehigh Southwest Cement Company | Stockton | CA | — | ◇ UNVERIFIED |
| LCLeitzen Concrete Products, INC. | Rochester | MN | — | ◇ UNVERIFIED |
| LCLemay Concrete Block-lemay Concrete Block | Saint Louis | MO | — | ◇ UNVERIFIED |
| LRLemoore Ready Mix Calportland Company | Lemoore | CA | — | ◇ UNVERIFIED |
| LULeonard's Unit Step of Moline INC | Carbon Cliff | IL | — | ◇ UNVERIFIED |
| LRLeone Ready Mix LLC | Trinidad | CO | — | ◇ UNVERIFIED |
 Leo O'laughlin Inc-leo O'laughlin INC | Shelbina | MO | — | ◇ UNVERIFIED |
| Leo O'laughlin Inc-macon | Macon | MO | — | ◇ UNVERIFIED |
| Leo O'laughlin Inc-marceline | Marceline | MO | — | ◇ UNVERIFIED |
| LCLesney Concrete Specialist | Tarentum | PA | — | ◇ UNVERIFIED |
| LEL. E. Weed & Son, LLC | White River Junction | VT | — | ◇ UNVERIFIED |
| LBLewis Brady Concrete | Fairmont | NC | — | ◇ UNVERIFIED |
| LMLewis Memorial Christian Village | Springfield | IL | — | ◇ UNVERIFIED |
| LIL&g Industries 2326 Wolf Ridge Rd | Whistler | AL | — | ◇ UNVERIFIED |
| LFLiberty Family Partnership | San Diego | CA | — | ◇ UNVERIFIED |
| LMLiberty Mutual Portable Plant | Plano | TX | — | ◇ UNVERIFIED |
| LRLiberty Ready Mix Plant 3 | Des Moines | IA | — | ◇ UNVERIFIED |
| LCLiebus Concrete, Inc. | Oskaloosa | IA | — | ◇ UNVERIFIED |
| LCLiebus Concrete, Inc. | Oskaloosa | IA | — | ◇ UNVERIFIED |
| LILift INC. | Andover | KS | — | ◇ UNVERIFIED |
| LILimaco, INC. | Lenexa | KS | — | ◇ UNVERIFIED |
| LQLimestone Quarry Plant | Madison | AL | — | ◇ UNVERIFIED |
| LCLincoln County Ready Mix | Stanford | KY | — | ◇ UNVERIFIED |
| LCLincolnland Concrete INC | Springfield | IL | — | ◇ UNVERIFIED |
| LCLincolnland Concrete INC | New Berlin | IL | — | ◇ UNVERIFIED |
| LRLincoln Ready Mix Concrete | Lincoln | DE | — | ◇ UNVERIFIED |
| LWLincoln Way Materials | Dixon | IL | — | ◇ UNVERIFIED |
| LWLincoln Way Materials CO | Dixon | IL | — | ◇ UNVERIFIED |
| LPLindsay Precast, INC. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| LTLindsay Transportation Solutions | Rio Vista | CA | — | ◇ UNVERIFIED |
| LRLiquid Rock Concrete LLC | Houston | TX | — | ◇ UNVERIFIED |
| LRLittle Rock Plant 605 (smyrna Ready Mix Concrete) | Little Rock | AR | — | ◇ UNVERIFIED |
| LOLive Oak Materials, INC. | Ingleside | TX | — | ◇ UNVERIFIED |
| LCLivingston Concrete Services ( | Lincoln | CA | — | ◇ UNVERIFIED |
| LRLivingston Rmc Plant | Livingston | TX | — | ◇ UNVERIFIED |
| LCLivingston's Concrete, INC | Olivehurst | CA | — | ◇ UNVERIFIED |
| LJL & J Asphalt - London | London | KY | — | ◇ UNVERIFIED |
| LLL & L Ready Mix Concrete - Haxtun | Haxtun | CO | — | ◇ UNVERIFIED |
| LLL & L Ready Mix Concrete - Holyoke | Holyoke | CO | — | ◇ UNVERIFIED |
| LML. Mackedon & Sons | Fallon | NV | — | ◇ UNVERIFIED |
| LCLmp Concrete, INC. | Pink Hill | NC | — | ◇ UNVERIFIED |
| LCLmp Concrete, INC. | Pink Hill | NC | — | ◇ UNVERIFIED |
| LCLn Concrete Materials Cor | Erlanger | KY | — | ◇ UNVERIFIED |
| LCLobato Construction - Mc-8t Plant | Platteville | CO | — | ◇ UNVERIFIED |
| LCLobo Concrete - 60 Cu Yd Concrete Batch Plant No1844 | Angel Fire | NM | — | ◇ UNVERIFIED |
| LSLoch Sand and Construction Company | Maryville | MO | — | ◇ UNVERIFIED |
| LSLoch Sand & Construction Co-kci Airport | Kansas City | MO | — | ◇ UNVERIFIED |
| LALockbourne Aggregates LLC | Lockbourne | OH | — | ◇ UNVERIFIED |
| LCLoflin Concrete CO -- High Point Road | Kernersville | NC | — | ◇ UNVERIFIED |
| LCLoflin Concrete Company, INC. | Kernersville | NC | — | ◇ UNVERIFIED |
| LCLoflin Concrete CO. -- Pisgah Church Rd. | Kernersville | NC | — | ◇ UNVERIFIED |
| LSLone Star Precast | Buda | TX | — | ◇ UNVERIFIED |
| LPLonestar Prestress Mfg. INC. | Conway | AR | — | ◇ UNVERIFIED |
| LWLone Wolf Enterprises-harrisonville | Harrisonville | MO | — | ◇ UNVERIFIED |
| LWLone Wolf Enterprises-lone Wolf Enterprises | Kansas City | MO | — | ◇ UNVERIFIED |
| LALong Aggregate | Mariposa | CA | — | ◇ UNVERIFIED |
