| RMReady Mix Usa, LLC - Sulphur Plant | Sulphur | LA | — | ◇ UNVERIFIED |
| RMReady Mix Usa, LLC - Troy Facility | Troy | AL | — | ◇ UNVERIFIED |
| RMReady Mix Usa, Llc- West Montgomery Temporary Facility | Montgomery | AL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Marianna Plant | Marianna | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Navy Federal Credit Union | Pensacola | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Niceville Plant (west) | Niceville | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - North Georgia Division | Chattanooga | TN | — | ◇ UNVERIFIED |
| RMReady Mix USA - Opelika Facility | Opelika | AL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Panama City Facility | Panama City | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Port St Joe Plant | Port Saint Joe | FL | — | ◇ UNVERIFIED |
| RMReady Mix USA - Racetrack Road Plant | Fort Walton Beach | 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 |
| RRRealco Recycling CO. INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| RCReames Concrete Co., INC. | Valdosta | GA | — | ◇ UNVERIFIED |
| RCReames Concrete Company | Valdosta | GA | — | ◇ UNVERIFIED |
| RCRec - Cannon Falls | Cannon Falls | MN | — | ◇ UNVERIFIED |
| RMRecrete Materials-port. Conc. Plnt | Aurora Area | CO | — | ◇ UNVERIFIED |
| RSRedbay Sand Company INC | Ponce De Leon | FL | — | ◇ UNVERIFIED |
| RBRed Bird Pre-mix Company-bridgeton | Bridgeton | MO | — | ◇ UNVERIFIED |
| RCRedding Concrete | Redding | CA | — | ◇ UNVERIFIED |
| RCRedding Concrete | Shasta Lake | CA | — | ◇ UNVERIFIED |
| RCRed-e-mix-granite City | Granite City | IL | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Jerseyville | IL | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Troy | IL | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Highland | IL | — | ◇ UNVERIFIED |
| RERed E Mix LLC | O'fallon | IL | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Mascoutah | IL | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Litchfield | IL | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Columbia | IL | — | ◇ UNVERIFIED |
| RARedi-mix Aledo Plant | Aledo | TX | — | ◇ UNVERIFIED |
| RARedi-mix Anna | Anna | TX | — | ◇ UNVERIFIED |
| RCRedimix Companies, INC. | Berwick | ME | — | ◇ UNVERIFIED |
| RCRedimix Companies, INC. - Dover | Dover | NH | — | ◇ UNVERIFIED |
| RCRedimix Companies, INC. - Manchester | Manchester | NH | — | ◇ UNVERIFIED |
| RCRedi-mix Concrete Mesquite Plant | Mesquite | TX | — | ◇ UNVERIFIED |
| RDRedi-mix Dallas Loop 12 | Dallas | TX | — | ◇ UNVERIFIED |
| RFRedi-mix Forney Plant | Forney | TX | — | ◇ UNVERIFIED |
| RLRedi-mix LP | Denton | TX | — | ◇ UNVERIFIED |
| RMRedi Mix Plant 11 | Sherman | TX | — | ◇ UNVERIFIED |
| RMRedi Mix Westlake Cbp Sn Ceclp327wlk | Westlake | TX | — | ◇ UNVERIFIED |
| RWRedi-mix Wylie Plant | Wylie | TX | — | ◇ UNVERIFIED |
| RMRedondo Manufacturing | San Antonio | TX | — | ◇ UNVERIFIED |
| RRRed River Ready Mix - Alumax Facility | Texarkana | TX | — | ◇ UNVERIFIED |
| RVRedwood Valley Gravel Product INC | Redwood Valley | CA | — | ◇ UNVERIFIED |
| RRRegional Ready Mix LLC | Rochelle | IL | — | ◇ UNVERIFIED |
| RCReid Concrete LLC | La Pine | OR | — | ◇ UNVERIFIED |
| RCReis Concrete Products INC | Alexandria | KY | — | ◇ UNVERIFIED |
| RCReis Concrete Products INC | Falmouth | KY | — | ◇ UNVERIFIED |
| RAReliable Asphalt Corporation | Chicago | IL | — | ◇ UNVERIFIED |
| RCReliable Concrete Products and Ornamental Iron, INC. | Kansas City | KS | — | ◇ UNVERIFIED |
| RMReliable Mix Rmx 100 | Medicine Bow | WY | — | ◇ UNVERIFIED |
| RCRemedial Construction Services LP - Cameron Liquefaction Project Cbp #3 | Hackberry | LA | — | ◇ UNVERIFIED |
| RTRemediation Transportation Construction | Lost Hills | CA | — | ◇ UNVERIFIED |
| RER E Monks Const CO | Colorado Springs | CO | — | ◇ UNVERIFIED |
| RMRe Monks Const CO | Florence | CO | — | ◇ UNVERIFIED |
| RPReno Portable Ready Mix 4715 | Carson City | NV | — | ◇ UNVERIFIED |
| RRReno-sparks Ready Mix Inc/fernley Div | Fernley | NV | — | ◇ UNVERIFIED |
| RPRev's Pre-Cast Concrete Corp. | Waukesha | WI | — | ◇ UNVERIFIED |
| RPRex Portable Concrete Plant No. 2170 | Tulsa | OK | — | ◇ UNVERIFIED |
| RPRex Portable Concrete Plant No. 2185 | Junction City | KS | — | ◇ UNVERIFIED |
| RPRex Portable Concrete Plant No. 2185 | Concordia | KS | — | ◇ UNVERIFIED |
| RPRex Portable Concrete Plant No. 2643 | Tulsa | OK | — | ◇ UNVERIFIED |
| RPRex Portable Concrete Plant No. 2701 | Tulsa | OK | — | ◇ UNVERIFIED |
| RVRex Vault and Mausoleum Services, INC. | Newton | IL | — | ◇ UNVERIFIED |
| RVRex Vault & Mausoleum Service INC | Newton | IL | — | ◇ UNVERIFIED |
| RRReynolds Ready Mix LLC | Loxley | AL | — | ◇ UNVERIFIED |
| RLRhino LLC | Denver | CO | — | ◇ UNVERIFIED |
| RRRhino Ready Mix, LLC | Houston | TX | — | ◇ UNVERIFIED |
| RHR H Loven Co, INC. | Boone | NC | — | ◇ UNVERIFIED |
| RCRialto Concrete Products, INC. | Palmdale | CA | — | ◇ UNVERIFIED |
| RCRiber Construction INC | Dwight | IL | — | ◇ UNVERIFIED |
 Richards-wilbert INC - Roanoke Valley | Salem | VA | — | ◇ UNVERIFIED |
| RSRichey Services, LLC | Grove | OK | — | ◇ UNVERIFIED |
| RCRichmond Concrete Richmond Plant Division of Ernst Enterprises | Richmond | IN | — | ◇ UNVERIFIED |
| RHRichmond Hill (plant 10) | Richmond Hill | GA | — | ◇ UNVERIFIED |
| RRRichmond Rmc Plant | Richmond | VA | — | ◇ UNVERIFIED |
| RRRich Readimix Concrete INC | Greenbrae | CA | — | ◇ UNVERIFIED |
| RERichwood Equipment Company LLC | Springfield | OH | — | ◇ UNVERIFIED |
| RMRidge Mfg CORP | Rockaway | NJ | — | ◇ UNVERIFIED |
| RCRieth-riley Construction Co, INC | Mishawaka | IN | — | ◇ UNVERIFIED |
| RARight Away Redi-mix - Oakland Facility | Oakland | CA | — | ◇ UNVERIFIED |
| RARight Away Redi-mix - Pleasanton Facility | Pleasanton | CA | — | ◇ UNVERIFIED |
| RARight Away Redy Mix / County Quarry Products, INC / County Asphalt | Martinez | CA | — | ◇ UNVERIFIED |
| RARight Away Redy Mix INC | Pleasanton | CA | — | ◇ UNVERIFIED |
| RARight Away Redy Mix INC | Union City | CA | — | ◇ UNVERIFIED |
| RARight Away Redy Mix, INC | Oakland | CA | — | ◇ UNVERIFIED |
| RBRight Beaver Ready/mix | Lackey | KY | — | ◇ UNVERIFIED |
| RMRightmyer Machine Rentals INC | Roanoke Rapids | NC | — | ◇ UNVERIFIED |
| RRRiley Ready Mix & Materials, INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| RRRiley Ready Mix & Materials Inc-riley Ready Mix & Materials INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| RIRinker Indianapolis Pipe | Indianapolis | IN | — | ◇ UNVERIFIED |
| RMRinker Materials | Vancouver | WA | — | ◇ UNVERIFIED |
| RMRinker Materials | Littleton | CO | — | ◇ UNVERIFIED |
| RMRinker Materials - Grand Junction | Grand Junction | CO | — | ◇ UNVERIFIED |
| RMRinker Materials Hydro Conduit | Denver | CO | — | ◇ UNVERIFIED |
| RMRinker Materials Hydro Conduit | Grand Island | NE | — | ◇ UNVERIFIED |
| RMRinker Materials/lockhart (iw) | Orlando | FL | — | ◇ UNVERIFIED |
| RCRio's Concrete Pumping & Rental INC | Medley | FL | — | ◇ UNVERIFIED |
