| RCReis Concrete Products INC | Alexandria | KY | — | ◇ UNVERIFIED |
| RAReliable Asphalt CORP | Chicago | IL | — | ◇ UNVERIFIED |
| RCReliable Contracting Company, INC. - Gambrills | Millersville | MD | — | ◇ UNVERIFIED |
| RCReliable Contracting Company, INC. - Glen Burnie | Glen Burnie | MD | — | ◇ UNVERIFIED |
| RLReliable Laflin LLC | Chicago | IL | — | ◇ UNVERIFIED |
| RMReliable Materials CORP of Il | Chicago | IL | — | ◇ UNVERIFIED |
| RER E Monks Const | Colorado Springs | CO | — | ◇ UNVERIFIED |
| RPRex Portable Concrete Plant No. 2701 | Claremore | OK | — | ◇ UNVERIFIED |
| RVRex Vault & Mausoleum Service INC | Newton | IL | — | ◇ UNVERIFIED |
| RRReynolds Ready Mix LLC | Loxley | AL | — | ◇ UNVERIFIED |
| RAR&f Asphalt | Ponce | PR | — | ◇ UNVERIFIED |
| RHR H Loven Co, INC. | Boone | NC | — | ◇ UNVERIFIED |
| RCRialto Concrete Products INC | Rialto | CA | — | ◇ UNVERIFIED |
| RCRibble Contracting - 60tph Asphalt Plant No1559 | Deming | NM | — | ◇ UNVERIFIED |
| RCRichmond Concrete Richmond Plant Division of Ernst Enterprises | Richmond | IN | — | ◇ UNVERIFIED |
| RRRich Readimix Concrete INC | Greenbrae | CA | — | ◇ UNVERIFIED |
| RMRidge Mfg CORP | Rockaway | NJ | — | ◇ UNVERIFIED |
| RRRidge Rock - East Ellijay Plant | East Ellijay | GA | — | ◇ UNVERIFIED |
| RCRiemers-kaufman Concrete Products | Lincoln | NE | — | ◇ UNVERIFIED |
| RRRieth Riley Construction CO | Indianapolis | IN | — | ◇ UNVERIFIED |
| RRRieth Riley Construction CO INC | Ada | MI | — | ◇ UNVERIFIED |
| RRRieth Riley Construction CO INC | Traverse City | MI | — | ◇ UNVERIFIED |
| RRRieth Riley Construction Co, INC. | Saint James | MI | — | ◇ UNVERIFIED |
| RRRieth Riley Construction Co., INC. | Benton Harbor | MI | — | ◇ UNVERIFIED |
| RRRieth Riley Construction Co., INC. | Lansing | MI | — | ◇ UNVERIFIED |
| RCRieth-riley Construction CO INC | Kalamazoo | MI | — | ◇ UNVERIFIED |
| RCRieth-riley Construction Co., INC. | Big Rapids | MI | — | ◇ UNVERIFIED |
| RCRieth-riley Construction Co., INC. | Grand Rapids | MI | — | ◇ UNVERIFIED |
| RCRieth-riley Construction Co., INC. | Zeeland | MI | — | ◇ UNVERIFIED |
| RCRieth-riley Construction Co., INC. | Mason | MI | — | ◇ UNVERIFIED |
| RCRieth-riley Construction Company, INC. | Lima | IN | — | ◇ UNVERIFIED |
| RRRieth Riley Construction Company Incorporated | South Bend | IN | — | ◇ UNVERIFIED |
| RRRieth Riley Construction Company Incorporated | Gary | IN | — | ◇ UNVERIFIED |
| RRRieth Riley Construction Company Incorporated | Cloverdale | IN | — | ◇ UNVERIFIED |
| RCRieth-riley Construction Company Incorporated | Fremont | IN | — | ◇ UNVERIFIED |
| RLRight/pointe LLP | Dekalb | IL | — | ◇ UNVERIFIED |
| RBRiley Brothers | Bellingham | MA | — | ◇ 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 | West Des Moines | IA | — | ◇ UNVERIFIED |
| RMRinker Materials Hydro Conduit | Grand Island | NE | — | ◇ UNVERIFIED |
| RMRinker Materials Hydro Conduit | Denver | CO | — | ◇ UNVERIFIED |
| RMRinker Materials Hydro Conduit- Frederick | Frederick | MD | — | ◇ UNVERIFIED |