| JPJet Precast, INC. | O'fallon | IL | — | ◇ UNVERIFIED |
| JWJewell Waco Site | Waco | TX | — | ◇ UNVERIFIED |
| JGJ.f. Gillespie, INC. | Vineland | NJ | — | ◇ UNVERIFIED |
| JJJ J Ferguson, Pretress and Precast Company Greenwood | Greenwood | MS | — | ◇ UNVERIFIED |
| JCJlin Corporation | Paducah | KY | — | ◇ UNVERIFIED |
| JBJm Bean INC Dba Flair Fountains | Minneapolis | MN | — | ◇ UNVERIFIED |
| JCJmm Concrete Designs LLC | Pittsburgh | PA | — | ◇ UNVERIFIED |
| JFJoe Floyd & Sons Incorporated | Prineville | OR | — | ◇ UNVERIFIED |
| JDJohn D Shaffer | Latrobe | PA | — | ◇ UNVERIFIED |
| JGJohn Gil, INC. | Ludlow | MA | — | ◇ UNVERIFIED |
| JBJohns Building Supply CO. INC. | Cheshire | MA | — | ◇ UNVERIFIED |
| JCJohnson-bateman Company | Ontario | CA | — | ◇ UNVERIFIED |
| JCJohnson Concrete Co-eastern | Willow Springs | NC | — | ◇ UNVERIFIED |
| JCJohnson Concrete Company | Lexington | NC | — | ◇ UNVERIFIED |
| JCJohnson Concrete Company | Willow Spring | NC | — | ◇ UNVERIFIED |
| JSJoplin Stoneworks LLC | Duenweg | MO | — | ◇ UNVERIFIED |
| JMJoseph Mining CO | Mcdowell | KY | — | ◇ UNVERIFIED |
| JCJosten Concrete Products CO. INC. | North Platte | NE | — | ◇ UNVERIFIED |
| JCJosten Concrete Products Company, INC. | Sioux Falls | SD | — | ◇ UNVERIFIED |
| JEJPCC Enterprises LLC | Corona | CA | — | ◇ UNVERIFIED |
| JHJpc Holdings, LLC | Trenton | NJ | — | ◇ UNVERIFIED |
| JIJrcc, INC Dba Jr Concrete | Olivehurst | CA | — | ◇ UNVERIFIED |
| JRJ & R Concrete Products INC | Perris | CA | — | ◇ UNVERIFIED |
| JRJ & R Slaw Precast Plant | Lehighton | PA | — | ◇ UNVERIFIED |
| JWJ. W. Kelso Company, INC. | Galveston | TX | — | ◇ UNVERIFIED |
| JWJ W Reynolds Monument Company | Vienna | IL | — | ◇ UNVERIFIED |
| KCKasten Concrete Products | Cape Girardeau | MO | — | ◇ UNVERIFIED |
| KMKast Marble | Colorado Springs | CO | — | ◇ UNVERIFIED |
| KPKauai Precast LLC | Kalaheo | HI | — | ◇ UNVERIFIED |
| KFKauffman Family LP Land Development Renewal | Sadsbury, Township of | PA | — | ◇ UNVERIFIED |
| KWKc Wilbert Vault | Grandview | MO | — | ◇ UNVERIFIED |
| KDK & D Enterprises, INC | Ceres | CA | — | ◇ UNVERIFIED |
| KVKelley Vault Co., INC. | Champaign | IL | — | ◇ UNVERIFIED |
| KIKellystone, INC. | Lake Charles | LA | — | ◇ UNVERIFIED |
| KPKerkstra Precast INC | Trenton | MI | — | ◇ UNVERIFIED |
| KPKerkstra Precast INC | Grandville | MI | — | ◇ UNVERIFIED |
| KCKeystone Concrete Block and Supply Company, INC. | Scranton | PA | — | ◇ UNVERIFIED |
| KCKeystone Concrete Block INC. | Clarks Summit | PA | — | ◇ UNVERIFIED |
| KPKienstra Precast | Bridgeton | MO | — | ◇ UNVERIFIED |
 Kilgore Companies Dba Peak Readymix | Grand Junction | CO | — | ◇ UNVERIFIED |
| KGKing General Contractors INC | Bristol | VA | — | ◇ UNVERIFIED |
| KCKirkpatrick Concrete,inc. | Bessemer | AL | — | ◇ UNVERIFIED |
| KCKirkpatrick Concrete,inc. Plant 13 | Birmingham | AL | — | ◇ UNVERIFIED |
| KCKistner Concrete Products INC | Springville | NY | — | ◇ UNVERIFIED |
| KMKnauer Mod Wilbert Burial Vaul | Joliet | IL | — | ◇ UNVERIFIED |
| KKKnights Keep, LLC | Highlandville | MO | — | ◇ UNVERIFIED |
| KRKnight's Redi-mix (jedburg Facility) | Summerville | SC | — | ◇ UNVERIFIED |
| KSKnights Septic Tank Service INC | Summerville | SC | — | ◇ UNVERIFIED |
| KKoss #108 | North Little Rock | AR | — | ◇ UNVERIFIED |
| KPKrete Partners, LLC | Brookfield | WI | — | ◇ UNVERIFIED |
| KIKrushin It LLC | Ocala | FL | — | ◇ UNVERIFIED |
| LNLafarge North America C/o the Corporation Trust, INC | Lutherville | MD | — | ◇ UNVERIFIED |
| LSLake Shore Burial Vault Co., INC. | Brookfield | WI | — | ◇ UNVERIFIED |
| LCLand Clearing Keystone Investments Iii | Jacksonville | FL | — | ◇ UNVERIFIED |
| LSLandmark Stone Inc | Olivehurst | CA | — | ◇ UNVERIFIED |
| LSLandmark Stone Products, LLC | Cynthiana | KY | — | ◇ 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 |
| LCLargo Concrete | Colton | CA | — | ◇ UNVERIFIED |
| LELarry E. Knight, INC. | Glyndon | MD | — | ◇ UNVERIFIED |
| LJLarry Jacinto Construction, INC. | Redlands | CA | — | ◇ UNVERIFIED |
| LCLarson Cement Stone CO | Omaha | NE | — | ◇ UNVERIFIED |
| LCLash Construction INC. | Santa Barbara | CA | — | ◇ UNVERIFIED |
| LFL.b. Foster Company | Tucson | AZ | — | ◇ UNVERIFIED |
| LILeco Industries | Las Cruces | NM | — | ◇ UNVERIFIED |
| LPLedgeview Precast Concrete INC. | Fond Du Lac | WI | — | ◇ UNVERIFIED |
| LBLee Brick & Block | Bowling Green | KY | — | ◇ UNVERIFIED |
| LFLee Farms Excavating INC | Paxton | IL | — | ◇ UNVERIFIED |
| LMLee Masonry Products INC | Antioch | TN | — | ◇ UNVERIFIED |
| LMLee Masonry Products INC | Hopkinsville | KY | — | ◇ UNVERIFIED |
| LMLee Masonry Products INC | Bardstown | KY | — | ◇ UNVERIFIED |
| LMLee Masonry Products INC | Lexington | KY | — | ◇ UNVERIFIED |
| LMLee Masonry Products LLC | Bowling Green | KY | — | ◇ UNVERIFIED |
| LPLees Precast Concrete Inc. | Aberdeen | MS | — | ◇ UNVERIFIED |
| LCLehigh Cement CO | Portland | OR | — | ◇ UNVERIFIED |
| LSLehigh Southwest Cement Company | Fresno | CA | — | ◇ UNVERIFIED |
| LBLeonard Block Company | Winston Salem | NC | — | ◇ UNVERIFIED |
| LCLesney Concrete Specialist | Tarentum | PA | — | ◇ UNVERIFIED |
| LEL. E. Weed & Son, LLC | White River Junction | VT | — | ◇ UNVERIFIED |
| LMLewis Memorial Christian Village | Springfield | IL | — | ◇ UNVERIFIED |
| LFLiberty Family Partnership | San Diego | CA | — | ◇ UNVERIFIED |
| LCLiebus Concrete, Inc. | Oskaloosa | IA | — | ◇ UNVERIFIED |
| LCLiebus Concrete, Inc. | Oskaloosa | IA | — | ◇ UNVERIFIED |
| LILift INC. | Andover | KS | — | ◇ UNVERIFIED |
| LBLightweight Block CO | Lynchburg | VA | — | ◇ UNVERIFIED |
| LBLightweight Block Lexington Corporation | Lexington | NC | — | ◇ UNVERIFIED |
| LILimaco, INC. | Lenexa | KS | — | ◇ UNVERIFIED |
| LPLindsay Precast, INC. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| LTLindsay Transportation Solutions | Rio Vista | CA | — | ◇ UNVERIFIED |
| LCLivingston Concrete Services ( | Lincoln | CA | — | ◇ UNVERIFIED |
| LPLivonia Pre Cast LLC | Livonia | MI | — | ◇ UNVERIFIED |
| LLL.K. Lehman Trucking, Inc | Sonora | CA | — | ◇ UNVERIFIED |
| LCLoby Concrete Products CO | La Follette | TN | — | ◇ UNVERIFIED |
| LMLojac Materials INC | Lebanon | TN | — | ◇ UNVERIFIED |
| LSLone Star Precast | Buda | TX | — | ◇ UNVERIFIED |
| LPLonestar Prestress Mfg. INC. | Conway | AR | — | ◇ UNVERIFIED |
| LWLone Wolf Enterprises-lone Wolf Enterprises | Kansas City | MO | — | ◇ UNVERIFIED |
| LPLongleaf Packaging | Holly Hill | SC | — | ◇ UNVERIFIED |
| LCLotts Concrete Products, INC. | Fort Myers | FL | — | ◇ UNVERIFIED |
