| 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 |
