| LRLaurie Ready-mix | Laurie | MO | — | ◇ UNVERIFIED |
| L1Lavergne-plant 14 | La Vergne | TN | — | ◇ UNVERIFIED |
| LALawrence Asphalt Plant | Lawrence | KS | — | ◇ UNVERIFIED |
| LRLawrence-lynch Realty CORP | Falmouth | MA | — | ◇ UNVERIFIED |
| LRLawrence Ready Mi(haskell St) | Lawrence | KS | — | ◇ UNVERIFIED |
| LRLawrence Ready Mixed Concrete CO | Sandwich | MA | — | ◇ UNVERIFIED |
| LBLawson Building Supply Incorporated | Rose Hill | VA | — | ◇ UNVERIFIED |
| LCLawson Construction - 22-902 | Kit Carson Area | CO | — | ◇ UNVERIFIED |
| LCLawson Construction - 22-906 | Loveland | CO | — | ◇ UNVERIFIED |
| LRLawson Redi-mix INC | Nashville | TN | — | ◇ UNVERIFIED |
| LELbj Expressway Project | Dallas | TX | — | ◇ UNVERIFIED |
| LCLeesburg Concrete INC | Leesburg | FL | — | ◇ UNVERIFIED |
| LCLee's Concrete | Bangor | ME | — | ◇ UNVERIFIED |
| LCLees Concrete | Max Meadows | VA | — | ◇ UNVERIFIED |
| LSLee's Summit Municipal Airport | Lees Summit | MO | — | ◇ UNVERIFIED |
| LGLe Grand Johnson Construction Logan Shop | Logan | UT | — | ◇ UNVERIFIED |
| LNLehigh Northeast Cement Company | Howes Cave | NY | — | ◇ UNVERIFIED |
| LCLemay Concrete Block-lemay Concrete Block | Saint Louis | MO | — | ◇ UNVERIFIED |
| LRLeone's Ready Mix Concrete CO | Benld | IL | — | ◇ UNVERIFIED |
| LOLeo O'laughlin INC - Macon | Macon | MO | — | ◇ UNVERIFIED |
 Leo O'laughlin Inc-macon | Macon | MO | — | ◇ UNVERIFIED |
| Leo O'laughlin Inc-marceline | Marceline | MO | — | ◇ UNVERIFIED |
| LMLevy Materials Co., LLC | N Little Rock | AR | — | ◇ UNVERIFIED |
| LPLewiston Premix Conc | Lewiston | ID | — | ◇ UNVERIFIED |
| LPLewisville Plant | Lewisville | TX | — | ◇ UNVERIFIED |
| LCLexington Concrete and Supply Company | Lexington | OH | — | ◇ UNVERIFIED |
| LIL&g Industries 2326 Wolf Ridge Rd | Whistler | AL | — | ◇ UNVERIFIED |
| LCLiberty Concrete Company | Jackson | MO | — | ◇ UNVERIFIED |
| LHLiberty Holdings | Grimes | IA | — | ◇ UNVERIFIED |
| LOLiberty of Vero Beach | Vero Beach | FL | — | ◇ 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 |
| LRLifecycle Renewables | Everett | MA | — | ◇ UNVERIFIED |
| LQLimestone Quarry Plant | Madison | AL | — | ◇ UNVERIFIED |
| LCLincoln County Concrete | Troy | MO | — | ◇ UNVERIFIED |
| LCLincoln County Ready Mix | Stanford | KY | — | ◇ UNVERIFIED |
| LCLincoln County Ready Mix INC | Danville | KY | — | ◇ UNVERIFIED |
| LCLincoln County Ready Mix INC | Boyle County | KY | — | ◇ UNVERIFIED |
| LCLincolnland Concrete INC | Springfield | IL | — | ◇ UNVERIFIED |
| LCLincolnland Concrete INC | New Berlin | IL | — | ◇ UNVERIFIED |
| LTLincoln Trail Concrete | Hodgenville | KY | — | ◇ UNVERIFIED |
| LTLiquid Titan Transmix Facility | Parker | AZ | — | ◇ UNVERIFIED |
| LPLisbon Processing LLC - Lisbon Refinery J V LLC Facility | Lisbon | LA | — | ◇ UNVERIFIED |
| LCList & Clark Const. CO. (portable) | Pittsburg | KS | — | ◇ 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 |
| LKL & K Concrete | Little Falls | MN | — | ◇ UNVERIFIED |
| LML & M Concrete | Edina | MO | — | ◇ UNVERIFIED |
| LCLmp Concrete, INC. | Pink Hill | NC | — | ◇ UNVERIFIED |
| LCLn Concrete Materials Cor | Erlanger | KY | — | ◇ UNVERIFIED |
| LSLoch Sand and Construction Company | Maryville | MO | — | ◇ UNVERIFIED |
| LSLoch Sand & Construction Company | Maryville | MO | — | ◇ UNVERIFIED |
| LCLoflin Concrete CO. -- Pisgah Church Rd. | Kernersville | NC | — | ◇ UNVERIFIED |
| LELojac Enterprises, INC. | Cookeville | TN | — | ◇ UNVERIFIED |
| LSLone Star Concrete Harold Green Plant | Austin | TX | — | ◇ UNVERIFIED |
| LWLone Wolf Enterprises Belton | Belton | MO | — | ◇ UNVERIFIED |
| LRLongview Refining Associates | Longview | TX | — | ◇ UNVERIFIED |
| LOLorco of Maryland | Elkton | MD | — | ◇ UNVERIFIED |
| LALos Alamos Transit Mix, LLC. | Los Alamos | NM | — | ◇ UNVERIFIED |
| LALos Angeles Plant 15 | Los Angeles | CA | — | ◇ UNVERIFIED |
| LJLottie Jones Wilbert Production Facility | Lottie | LA | — | ◇ UNVERIFIED |
| LRLottman Ready Mix (portable) | Portable | KS | — | ◇ UNVERIFIED |
| LRLottman Ready Mix (portable)(air) | Edgerton | KS | — | ◇ UNVERIFIED |
| LMLouisiana Minerals LTD #10-1 Lease | Pleasant Hill | LA | — | ◇ UNVERIFIED |
| LRLoveland Ready Mix Concrete - Green Pit | Johnstown | CO | — | ◇ UNVERIFIED |
| LRLoveland Ready Mix Concrete INC | Johnstown Area | CO | — | ◇ UNVERIFIED |
| LRLoven Ready Mix LLC | Pineola | NC | — | ◇ UNVERIFIED |
| LCLowcountry Concrete: Beaufort (plt #3) | Beaufort | SC | — | ◇ UNVERIFIED |
| LWLowery, W C INC | Callao | VA | — | ◇ UNVERIFIED |
| LCLowes Concrete INC | Leitchfield | KY | — | ◇ UNVERIFIED |
| LCLowes Concrete Products INC - Ready Mix Plant | Leitchfield | KY | — | ◇ UNVERIFIED |
| LPLowest Price | Washington | DC | — | ◇ UNVERIFIED |
| LPL P G Ventures INC | Kearney | MO | — | ◇ UNVERIFIED |
| LRL R Falk Construction CO - Plant #1 | Saint Ansgar | IA | — | ◇ UNVERIFIED |
| LCL&s Concrete | New Bedford | MA | — | ◇ UNVERIFIED |
| LILs Industries Incorporated | Swansea | MA | — | ◇ UNVERIFIED |
| LCLtj Concrete, LLC - Weber Business Park | Dove Creek | CO | — | ◇ UNVERIFIED |
| LSLuck Stone Corporation - Gilmerton Plant | Chesapeake | VA | — | ◇ UNVERIFIED |
| LSLuck Stone Corporation - Toano | Williamsburg | VA | — | ◇ UNVERIFIED |
| LBLumberton Batch Plant Facility | Lumberton | TX | — | ◇ UNVERIFIED |
| LWL & W Concrete | Norridgewock | ME | — | ◇ UNVERIFIED |
| LCLyman-richey CORP Dba Gerhold Concrete | Missouri Valley | IA | — | ◇ UNVERIFIED |
| LSLyman-richey Sand & Gravel 07 | Valley | NE | — | ◇ UNVERIFIED |
| LRLynchburg Ready Mix Amherst | Amherst | VA | — | ◇ UNVERIFIED |
| LCLyons Concrete | Vidalia | GA | — | ◇ UNVERIFIED |
| MCMace Concrete LLC. Dba East Coast Ready | Fayetteville | NC | — | ◇ UNVERIFIED |
| MCMack Concrete | Grafton | OH | — | ◇ UNVERIFIED |
| MFMaddens Facility | Caldwell | ID | — | ◇ UNVERIFIED |
| MRMaddens Ready Mix | Caldwell | ID | — | ◇ UNVERIFIED |
| MDMad Dog Concrete LLC | Rock Island | IL | — | ◇ UNVERIFIED |
| MCMade-rite Concrete Prod | Ottawa | OH | — | ◇ UNVERIFIED |
| MRMadill Rmc Plant | Madill | OK | — | ◇ UNVERIFIED |
| MFMagnolia Field Facility | Pointe a La Hache | LA | — | ◇ UNVERIFIED |
| MRMagnolia Rmc Plant | Magnolia | TX | — | ◇ UNVERIFIED |
| MPMain Pass Block 10 Platform a Facility | Hopedale | LA | — | ◇ UNVERIFIED |
| MCMajor Concrete | Green Cove Springs | FL | — | ◇ UNVERIFIED |
| MCMalden Concrete Products | Malden | MO | — | ◇ UNVERIFIED |
