| ABAngelus Block Company | Oxnard | CA | — | ◇ UNVERIFIED |
| ABAngelus Block Company INC | Indio | CA | — | ◇ UNVERIFIED |
| ABAngelus Block INC | Orange | CA | — | ◇ UNVERIFIED |
| ASAppleridge Stone International, INC. | Blairsville | PA | — | ◇ UNVERIFIED |
| ACArban Carosi Diana Precast - Ladysmith Plant | Ruther Glen | VA | — | ◇ UNVERIFIED |
| APArban Precast Stone, LTD. | Dumfries | VA | — | ◇ UNVERIFIED |
| AArcee | Castle Rock Area | CO | — | ◇ UNVERIFIED |
| ACArchitectural Cast Stone, INC | Wichita | KS | — | ◇ UNVERIFIED |
| ACArchitectural Cast Stone,inc. | West Chicago | IL | — | ◇ UNVERIFIED |
| ACArchitectural Concrete Company, INC. | Palmetto | GA | — | ◇ UNVERIFIED |
| ALArchitectural Limestone, Inc. | Gurnee | IL | — | ◇ UNVERIFIED |
| AOArchitectural Ornaments INC | Kansas City | MO | — | ◇ UNVERIFIED |
| APArchitectural Precast & Foam LLC | West Palm Beach | FL | — | ◇ UNVERIFIED |
| APArchitectural Precast & Foam, LLC | Jupiter | FL | — | ◇ UNVERIFIED |
| APArchitectural Precast, LLC | Kapolei | HI | — | ◇ UNVERIFIED |
| APArchitectural Products, INC. | Manassas | VA | — | ◇ UNVERIFIED |
| ACArco Concrete INC. | Fort Lupton | CO | — | ◇ UNVERIFIED |
| ACAries Concrete, INC. | Kennesaw | GA | — | ◇ UNVERIFIED |
| ALArmorock LLC | Boulder City | NV | — | ◇ UNVERIFIED |
| AAroostacast | Presque Isle | ME | — | ◇ UNVERIFIED |
| ACArquitectural Crete CORP | Dundee | FL | — | ◇ UNVERIFIED |
| ACArrow Concrete | Granby | CT | — | ◇ UNVERIFIED |
| ASArrowhead Stone Manufacturing INC | Knoxville | TN | — | ◇ UNVERIFIED |
| APArtis Pittman | Enterprise | AL | — | ◇ UNVERIFIED |
| AAArtistic Accents | Cumming | GA | — | ◇ UNVERIFIED |
| ACArtistic Columns, INC. | Oakland Park | FL | — | ◇ UNVERIFIED |
| APArtistic Pavers Mfg | Miami | FL | — | ◇ UNVERIFIED |
| ASArt Stone Products CORP | Newfield | NJ | — | ◇ UNVERIFIED |
| AVAshland Ventures Ii, LLC | Ashland | VA | — | ◇ UNVERIFIED |
| ASAthens Stonecasting, INC | Athens | GA | — | ◇ UNVERIFIED |
| AWAtlanta West Cast Stone | Bremen | GA | — | ◇ UNVERIFIED |
| ACAtlantic Concrete Products | Douglasville | GA | — | ◇ UNVERIFIED |
| ACAtlantic Concrete Pumping Enterprises INC | Coconut Creek | FL | — | ◇ UNVERIFIED |
| APAtlantic Precast Concrete, INC | Sarasota | FL | — | ◇ UNVERIFIED |
| ACAtlas Construction Supply, INC | Fullerton | CA | — | ◇ UNVERIFIED |
| APAtmi Precast INC. | Kenosha | WI | — | ◇ UNVERIFIED |
| ADAuburndale Drymix Plant | Auburndale | FL | — | ◇ UNVERIFIED |
| ACAugusta Concrete Block | North Augusta | SC | — | ◇ UNVERIFIED |
| ABAzar Block & Brick of South Texas INC | Mcallen | TX | — | ◇ UNVERIFIED |
| AAAzaro Aparicio & Sergio H Aparicio | San Juan | TX | — | ◇ UNVERIFIED |
| BSBadger Shredding Products INC | Fairmont City | IL | — | ◇ UNVERIFIED |
| BBalcon | Manassas | VA | — | ◇ UNVERIFIED |
| BLBaldwin Lighting INC | Bay Minette | AL | — | ◇ UNVERIFIED |
| BLBaleydian, LLC | Perris | CA | — | ◇ UNVERIFIED |
 Baltimore Fabrication | Emigsville | PA | — | ◇ UNVERIFIED |
| BBBarboursville Block Manufacturing Company | Huntington | WV | — | ◇ UNVERIFIED |
| BRBark River Concrete Products | Bark River | MI | — | ◇ UNVERIFIED |
| BRBartile Roofs INC | South Ogden | UT | — | ◇ UNVERIFIED |
| BRBartile Roofs INC | Centerville | UT | — | ◇ UNVERIFIED |
| BRBartile Roofs INC | Tooele | UT | — | ◇ UNVERIFIED |
| BPBartow Precast INC. | Cartersville | GA | — | ◇ UNVERIFIED |
| BBasalite | Carson City | NV | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products | Fort Lupton | CO | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products | Denver | CO | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products LLC. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products LLC Truck Shop | Carson City | NV | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products Site | Portland | OR | — | ◇ UNVERIFIED |
| BPBassbrook Products INC Dba Cohasset Concrete Produ | Cohasset | MN | — | ◇ UNVERIFIED |
| BLBaton LLC | Louisville | KY | — | ◇ UNVERIFIED |
| BLBaton LLC | Louisville | KY | — | ◇ UNVERIFIED |
| BVBaxter Vault Company INC | Baxter Springs | KS | — | ◇ UNVERIFIED |
| BCBayshore Concrete | Fort Myers | FL | — | ◇ UNVERIFIED |
| BCB C Concrete | Missoula | MT | — | ◇ UNVERIFIED |
| BCB & C Concrete Products, INC. | North Wilkesboro | NC | — | ◇ UNVERIFIED |
| BHBc Handscapes | Lenexa | KS | — | ◇ UNVERIFIED |
| BCBear Concrete Products, INC | Cullman | AL | — | ◇ UNVERIFIED |
| BBBeavertown Block CO | Middleburg | PA | — | ◇ UNVERIFIED |
| BBBeavertown Block Co., INC. | East Freedom | PA | — | ◇ UNVERIFIED |
| BBBedrock Block CO. | Orlando | FL | — | ◇ UNVERIFIED |
| BCBedrock Commercial Concrete Cutting, LLC | Portland | OR | — | ◇ UNVERIFIED |
| BSBelgrade Steel Tank CO INC | Belgrade | MN | — | ◇ UNVERIFIED |
| BSBelgrade Steel Tank CO INC - | Crow Lake Township | MN | — | ◇ UNVERIFIED |
| BNBelhaven - Nc Rmc | Belhaven | NC | — | ◇ UNVERIFIED |
| BBBell Burial Vault Company | Hamilton | OH | — | ◇ UNVERIFIED |
| BCBell Concrete Products INC | Bell | FL | — | ◇ UNVERIFIED |
| BIBellecrete INC | San Fernando | CA | — | ◇ UNVERIFIED |
| BPBelle Plaine Block and Tile INC | Belle Plaine | MN | — | ◇ UNVERIFIED |
| BMBellingham Marine Industries | Dixon | CA | — | ◇ UNVERIFIED |
| BMBellingham Marine Industries INC | Dixon | CA | — | ◇ UNVERIFIED |
| BMBellingham Marine Industries INC. | Oceanside | CA | — | ◇ UNVERIFIED |
| BSBello Stone LLC | Drumore | PA | — | ◇ UNVERIFIED |
| BIBend Inds | West Bend | WI | — | ◇ UNVERIFIED |
| BIBend Industries Appleton | Appleton | WI | — | ◇ UNVERIFIED |
| BBBenea Block Corporation | Kingston | MA | — | ◇ UNVERIFIED |
| BRBenedette Roof Tile Company | Kansas City | MO | — | ◇ UNVERIFIED |
| BCBesser Company USA | Alpena | MI | — | ◇ UNVERIFIED |
| BBBest Block - Bridgeton, Mo Plant [earth City] | Bridgeton | MO | — | ◇ UNVERIFIED |
| BBBest Block - Featherlite Converse Plant | Converse | TX | — | ◇ UNVERIFIED |
| BBBest Block/oberfields | Sunbury | OH | — | ◇ UNVERIFIED |
| BSBetco Supreme INC | Odenton | MD | — | ◇ UNVERIFIED |
| BMBethlehem Manufacturing Co., INC. | Hickory | NC | — | ◇ UNVERIFIED |
| BSBethlehem Stone | Climax Springs | MO | — | ◇ UNVERIFIED |
| BBBetter Block Company Incorporated | Springfield | TN | — | ◇ UNVERIFIED |
| BIBickes, INC. | Memphis | TN | — | ◇ UNVERIFIED |
| BIBickes, INC. | Lawrenceburg | TN | — | ◇ UNVERIFIED |
| BIBickes, INC. | Jackson | MS | — | ◇ UNVERIFIED |
| BIBickes INC D/b/a Jackson Wilbert Burial Vault CO | Jackson | TN | — | ◇ UNVERIFIED |
| BIBickes, INC. Dba Wilbert Burial Vault Company | Fort Branch | IN | — | ◇ UNVERIFIED |
| BRBig Rock Manufacturing INC | Honolulu | HI | — | ◇ UNVERIFIED |
| BBBinghamton Burial Vault Co., INC. | Binghamton | NY | — | ◇ UNVERIFIED |
