| JIJensen Infrastructure | Boulder City | NV | — | ◇ UNVERIFIED |
| JPJensen Precast | Lockeford | CA | — | ◇ UNVERIFIED |
| JPJensen Precast | Montecito | CA | — | ◇ UNVERIFIED |
| JPJensen Precast | Fontana | CA | — | ◇ UNVERIFIED |
| JPJensen Precast | Lockeford | CA | — | ◇ UNVERIFIED |
| JPJensen Precast | Orland | CA | — | ◇ UNVERIFIED |
| JPJensen Precast Casa Grande Plant #7 | Casa Grande | AZ | — | ◇ UNVERIFIED |
| JTJ.e. Tomes & Associates, INC. | Blue Island | IL | — | ◇ UNVERIFIED |
| JPJet Precast, INC. | O'fallon | IL | — | ◇ UNVERIFIED |
| JGJ.f. Gillespie, INC. | Vineland | NJ | — | ◇ UNVERIFIED |
| JCjhz cement llc | Sterling | IL | — | ◇ 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 |
| JCJohnson-bateman Company | Ontario | CA | — | ◇ 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 Reynolds Monument Company | Vienna | IL | — | ◇ 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 |
| KPKerkstra Precast INC | Trenton | MI | — | ◇ UNVERIFIED |
| KPKerkstra Precast INC | Grandville | MI | — | ◇ UNVERIFIED |
| KPKeystone Portland Cement/east Allen | Bath | PA | — | ◇ UNVERIFIED |
| KPKienstra Precast | Bridgeton | MO | — | ◇ UNVERIFIED |
 Kilgore Companies Dba Peak Readymix | Grand Junction | CO | — | ◇ UNVERIFIED |
| KCKirkpatrick Concrete,inc. | Bessemer | AL | — | ◇ UNVERIFIED |
| KCKistner Concrete Products INC | Springville | NY | — | ◇ UNVERIFIED |
| KCKlondike Concrete | Chugiak | AK | — | ◇ 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 |
| KCKosmos Cement | Neville Island | PA | — | ◇ UNVERIFIED |
| KCKosmos Cement Company, LLC | Nashville | TN | — | ◇ UNVERIFIED |
| KPKrete Partners, LLC | Brookfield | WI | — | ◇ UNVERIFIED |
| KIKrushin It LLC | Ocala | FL | — | ◇ UNVERIFIED |
| LCLafarge CORP - Sugar Creek Plant | Independence | MO | — | ◇ UNVERIFIED |
| LHLafarge Holcim | Ravena | NY | — | ◇ UNVERIFIED |
| LLafargeholcim | East Chicago | IN | — | ◇ UNVERIFIED |
| LLafargeholcim | Green Bay | WI | — | ◇ UNVERIFIED |
| LMLafarge Midwest, INC. | Fredonia | KS | — | ◇ UNVERIFIED |
| LNLafarge North America C/o the Corporation Trust, INC | Lutherville | MD | — | ◇ UNVERIFIED |
| LNLafarge North America, INC. | Nashville | TN | — | ◇ UNVERIFIED |
| LNLafarge North America INC. and Its Successors | Baltimore | MD | — | ◇ UNVERIFIED |
| LRLafarge Ravena Cement Plant | Ravena | NY | — | ◇ 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 |
| LELarry E. Knight, INC. | Glyndon | MD | — | ◇ UNVERIFIED |
| LJLarry Jacinto Construction, INC. | Redlands | CA | — | ◇ UNVERIFIED |
| LFL.b. Foster Company | Tucson | AZ | — | ◇ UNVERIFIED |
| LILeco Industries | Las Cruces | NM | — | ◇ UNVERIFIED |
| LPLedgeview Precast Concrete INC. | Fond Du Lac | WI | — | ◇ UNVERIFIED |
| LFLee Farms Excavating INC | Paxton | IL | — | ◇ UNVERIFIED |
| LPLees Precast Concrete Inc. | Aberdeen | MS | — | ◇ UNVERIFIED |
| LCLegacy Cast Stone and Composites LLC | North Las Vegas | NV | — | ◇ UNVERIFIED |
| LCLehigh Cement CO | Metaline Falls | WA | — | ◇ UNVERIFIED |
| LCLehigh Cement CO | Portland | OR | — | ◇ UNVERIFIED |
| LCLehigh Cement Company | Union Bridge | MD | — | ◇ UNVERIFIED |
| LCLehigh Cement Company | College Park | GA | — | ◇ UNVERIFIED |
| LCLehigh Cement Company LLC | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| LCLehigh Cement Company LLC | Mitchell | IN | — | ◇ UNVERIFIED |
| LCLehigh Cement Company LLC | Sellersburg | IN | — | ◇ UNVERIFIED |
| LCLehigh Cement West LLC | Redwood City | CA | — | ◇ UNVERIFIED |
| LNLehigh Northwest Cement CO Bellingham | Bellingham | WA | — | ◇ UNVERIFIED |
| LSLehigh Southwest Cement Company | Cupertino | CA | — | ◇ UNVERIFIED |
| LSLehigh Southwest Cement Company | Fresno | CA | — | ◇ 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 |
| 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 |
| LSLone Star Ind Dba Buzzi Unicem USA | Nashville | TN | — | ◇ UNVERIFIED |
| LSLone Star Ind INC Dba Buzzi Unicem USA Pryor Cement Plant | Pryor | OK | — | ◇ UNVERIFIED |
| LSLone Star Industries | Saint Louis | MO | — | ◇ UNVERIFIED |
| LSLone Star Industries INC | Oglesby | IL | — | ◇ UNVERIFIED |
| LSLone Star Industries INC Dba Buzzi Unicem USA - New Orleans Cement Terminal | New Orleans | LA | — | ◇ UNVERIFIED |
| LSLone Star Industries Portland Cement Plant | Dallas | TX | — | ◇ UNVERIFIED |
