| RMReady Mix USA LLC - Enterprise Plant | Enterprise | AL | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC - Greenville Facility | Greenville | AL | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC - Harvest Plant | Harvest | AL | — | ◇ UNVERIFIED |
| RMReady Mix USA Llc-lawrenceville Plant | Lawrenceville | GA | — | ◇ UNVERIFIED |
| RMReady Mix Usa, Llc-livingston Facility | Livingston | AL | — | ◇ UNVERIFIED |
| RMReady Mix USA LLC - Midtown Atlanta Plant | Atlanta | GA | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC - Mooresville Plant - 5217 | Madison | AL | — | ◇ UNVERIFIED |
| RMReady Mix USA Llc-morristown Plant | Morristown | TN | — | ◇ UNVERIFIED |
| RMReady Mix USA LLC - Panama City Main Plant | Panama City | FL | — | ◇ UNVERIFIED |
| RMReady Mix Usa, Llc-phenix City Facility | Phenix City | AL | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC - Sorrento Rd | Pensacola | FL | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC - Troy Facility | Troy | AL | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC - Woodstock Plant | Woodstock | GA | — | ◇ UNVERIFIED |
| RMReady Mix USA - Marianna Plant | Marianna | FL | — | ◇ UNVERIFIED |
| RMReady Mix Usa, Marietta Plant | Marietta | GA | — | ◇ UNVERIFIED |
| RMReady Mix USA - Mitlon | Milton | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Navy Federal Credit Union | Pensacola | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Panama City Facility | Panama City | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Pelham Facility | Pelham | AL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Port St Joe Plant | Port Saint Joe | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Skanska | Pensacola | FL | — | ◇ UNVERIFIED |
| RMReady Mix Usa-tarrant Facility | Birmingham | AL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Tyndall Afb | Tyndall Afb | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA Winfield Plant | Winfield | AL | — | ◇ UNVERIFIED |
| RCReames Concrete Company (sparks) | Sparks | GA | — | ◇ UNVERIFIED |
| RRReames Rd Concrete Plant | Charlotte | NC | — | ◇ UNVERIFIED |
| RBRec - Belle Plaine | Henderson | MN | — | ◇ UNVERIFIED |
| RMRecrete Materials-port. Conc. Plnt | Aurora Area | CO | — | ◇ UNVERIFIED |
| RBRed Bird Pre-mix Company-bridgeton | Bridgeton | MO | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Jerseyville | IL | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Litchfield | IL | — | ◇ UNVERIFIED |
| RCRedimix Companies, INC. - Dover | Dover | NH | — | ◇ UNVERIFIED |
| RCRedimix Companies, INC. - Manchester | Manchester | NH | — | ◇ UNVERIFIED |
| RCRedi-mix Concrete Prosper Plan | Prosper | TX | — | ◇ UNVERIFIED |
| RDRedi-mix Dallas | Dallas | TX | — | ◇ UNVERIFIED |
| RRRegional Ready Mix LLC | Rochelle | IL | — | ◇ UNVERIFIED |
| RCReis Concrete Products INC | Alexandria | KY | — | ◇ UNVERIFIED |
| RORex Oil | Denver | CO | — | ◇ UNVERIFIED |
| RORex Oil CO INC | Lyons | CO | — | ◇ UNVERIFIED |
| RPRex Portable Concrete Plant No. 2701 | Claremore | OK | — | ◇ UNVERIFIED |
| RRReynolds Ready Mix LLC | Loxley | AL | — | ◇ UNVERIFIED |
| RHR H Loven Co, INC. | Boone | NC | — | ◇ UNVERIFIED |
| RCRichmond Concrete Richmond Plant Division of Ernst Enterprises | Richmond | IN | — | ◇ UNVERIFIED |
| RRRich Readimix Concrete INC | Greenbrae | CA | — | ◇ UNVERIFIED |
| RERidge Energy CO INC | Clymer | PA | — | ◇ UNVERIFIED |
| RRRidge Rock - East Ellijay Plant | East Ellijay | GA | — | ◇ UNVERIFIED |
| RCRiemers-kaufman Concrete Products | Lincoln | NE | — | ◇ UNVERIFIED |
| RRRiley Ready Mix & Materials Inc-riley Ready Mix & Materials INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| RARinker Albuquerque Pipe | Bernalillo | NM | — | ◇ UNVERIFIED |
| RARinker Alexandria Pipe | Alexandria | LA | — | ◇ UNVERIFIED |
| RCRinker Charlotte Pipe | Concord | NC | — | ◇ UNVERIFIED |
| RCRinker Columbia Pipe | Columbia | SC | — | ◇ UNVERIFIED |
| RERinker El Paso Pipe | Santa Teresa | NM | — | ◇ UNVERIFIED |
| RGRinker Greenfield Pipe | Greenfield | IN | — | ◇ UNVERIFIED |
| RLRinker Las Vegas Pipe | Henderson | NV | — | ◇ UNVERIFIED |
| RMRinker Materials | Littleton | CO | — | ◇ UNVERIFIED |
| RMRinker Materials Hydro Conduit | Grand Island | NE | — | ◇ UNVERIFIED |
| RMRinker Materials Hydro Conduit- Frederick | Frederick | MD | — | ◇ UNVERIFIED |
| RMRinker Materials/lockhart (iw) | Orlando | FL | — | ◇ UNVERIFIED |
| RMRinker Miami Pipe | Miami | FL | — | ◇ UNVERIFIED |
| RMRinker Middletown Pipe | Middletown | DE | — | ◇ UNVERIFIED |
| RMRinker Myrtle Beach Pipe | Aynor | SC | — | ◇ UNVERIFIED |
| RORinker Oklahoma City Pipe | Oklahoma City | OK | — | ◇ UNVERIFIED |
| RORinker Orlando Pipe | Apopka | FL | — | ◇ UNVERIFIED |
| RPRinker Pittsburgh Pipe | Oakdale | PA | — | ◇ UNVERIFIED |
| RRRinker Reno Pipe | Sparks | NV | — | ◇ UNVERIFIED |
| RSRinker Stockbridge Pipe | Stockbridge | GA | — | ◇ UNVERIFIED |
| RWRinker Whitestown Pipe | Whitestown | IN | — | ◇ UNVERIFIED |
| RWRinker Wilson Pipe | Wilson | NC | — | ◇ UNVERIFIED |
| RCRio's Concrete Pumping & Rental INC | Medley | FL | — | ◇ UNVERIFIED |
| RCRiver City Concrete, INC. | Selmer | TN | — | ◇ UNVERIFIED |
| RFRiver Front Recycling & Aggregate | Camden | NJ | — | ◇ UNVERIFIED |
| RFRiver Front Recycling & Aggregate CORP | Waterford Twp | NJ | — | ◇ UNVERIFIED |
| RRRiver Redi-mix INC | Minonk | IL | — | ◇ UNVERIFIED |
| RERivers Edge Ready Mix - Prior Lake | Prior Lake | MN | — | ◇ UNVERIFIED |
| RRRiverside Ready Mix, INC. | Grants Pass | OR | — | ◇ UNVERIFIED |
| RGRiverstone Group INC | Rock Island | IL | — | ◇ UNVERIFIED |
| RPR.j. Paquette Concrete | Holden | MA | — | ◇ UNVERIFIED |
| RIRlh Investments LLC | Chalmette | LA | — | ◇ UNVERIFIED |
| RERmc Ewell -holiday | Pasco | FL | — | ◇ UNVERIFIED |
| RPRmc Pacific Materials Incorporated | San Jose | CA | — | ◇ UNVERIFIED |
| R1Rmq 1 and 2 | Rocky Mount | NC | — | ◇ UNVERIFIED |
| RTRmusa - Troy | Troy | AL | — | ◇ UNVERIFIED |
| RCRoanoke Chowan Ready Mix | Ahoskie | NC | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Bloomington | IL | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Petersburg | IL | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Lincoln | IL | — | ◇ UNVERIFIED |
| RFRoaring Fork Redi Mix INC | Lakewood | CO | — | ◇ UNVERIFIED |
| RMRobert Medina and Sons - Concrete Batch | Taos | NM | — | ◇ UNVERIFIED |
| RARoberts Auto Salvage | Labelle | FL | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Beaumont | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | French Camp | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Corona | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Corona | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix Lake Forest Plant 18 | Foothill Ranch | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix San Bernardino Plant 12 | San Bernardino | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix Santa Ana Plant 17 | Santa Ana | CA | — | ◇ UNVERIFIED |
| RRRobertsons Rialto Batch and Rock Plant | Rialto | CA | — | ◇ UNVERIFIED |
| RSRockbridge Stone Products | Glasgow | VA | — | ◇ UNVERIFIED |
| RRRockcastle Ready Mix | Mount Vernon | KY | — | ◇ UNVERIFIED |