| 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 |
| RGRio Grande Cnty | Del Norte | CO | — | ◇ UNVERIFIED |
| RGRio Grande County Road Dept. | Del Norte | CO | — | ◇ UNVERIFIED |
| RCRio's Concrete Pumping & Rental INC | Medley | FL | — | ◇ UNVERIFIED |
| RMRiverbend Materials | Eugene | OR | — | ◇ UNVERIFIED |
| RCRiver City Concrete, INC. | Selmer | TN | — | ◇ UNVERIFIED |
| RCRiver City Ready Mix LLC - Portable Ready Mix Plant #6 | Marksville | LA | — | ◇ UNVERIFIED |
| RCRiver City Supply | Galesburg | IL | — | ◇ UNVERIFIED |
| RCRiver City Supply | Normal | IL | — | ◇ 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 |
| RCRiverside Contracting - 3046 | Missoula | MT | — | ◇ UNVERIFIED |
| RPRiverside Paving and Contracting Company INC | Louisville | KY | — | ◇ UNVERIFIED |
| RRRiverside Ready Mix, INC. | Grants Pass | OR | — | ◇ UNVERIFIED |
| RGRiverstone Group INC | Rock Island | IL | — | ◇ UNVERIFIED |
| RGRiverstone Group INC | Rock Island | IL | — | ◇ UNVERIFIED |
| RGRiverstone Group, INC - Bettendorf | Bettendorf | IA | — | ◇ UNVERIFIED |
| RPR.j. Paquette Concrete | Holden | MA | — | ◇ UNVERIFIED |
| RPRjs Paving INC | Rice | MN | — | ◇ UNVERIFIED |
| RHRk Hall Construction LTD / Astec Portable Asphalt Plant 80 | Elk City | OK | — | ◇ UNVERIFIED |
| RHRk Hall Construction LTD / Cmi Portable Asphalt Plant 10 75 | Stringtown | OK | — | ◇ UNVERIFIED |
| RHRk Hall Construction LTD / Cmi Portable Asphalt Plant 35 | Elk City | OK | — | ◇ UNVERIFIED |
| RHRk Hall - Materials & Asphalt Plant - Denison | Denison | TX | — | ◇ UNVERIFIED |
| RHRk Hall -mt Pleasant Asphalt Plant | Mount Pleasant | TX | — | ◇ UNVERIFIED |
| RHRk Hall - Paris | Paris | TX | — | ◇ UNVERIFIED |
| RIRlh Investments LLC | Chalmette | LA | — | ◇ UNVERIFIED |
| RERmc Ewell -holiday | Pasco | FL | — | ◇ UNVERIFIED |
| RPRmc Pacific Materials Incorporated | San Jose | CA | — | ◇ UNVERIFIED |
| RMR Mix | Cambridge City | IN | — | ◇ UNVERIFIED |
| R1Rmq 1 and 2 | Rocky Mount | NC | — | ◇ UNVERIFIED |
| RTRmusa - Troy | Troy | AL | — | ◇ UNVERIFIED |
| RARoad and Highway Builders | Kailua Kona | HI | — | ◇ UNVERIFIED |
| RDRoad Drs LLC | Belvidere | IL | — | ◇ UNVERIFIED |
| RPRoad Production Materials | Hillsdale | IL | — | ◇ UNVERIFIED |
| RPRoad Production Materials | Milan | IL | — | ◇ UNVERIFIED |
| RIRoads INC of Nwf | Cantonment | FL | — | ◇ UNVERIFIED |
| RIRoadstone INC (sand, Gravel & Asphalt)) | Kingston | NH | — | ◇ UNVERIFIED |
| RCRoanoke Chowan Ready Mix | Ahoskie | NC | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Bloomington | IL | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Lincoln | IL | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Petersburg | IL | — | ◇ UNVERIFIED |
| RFRoaring Fork Redi Mix INC | Lakewood | CO | — | ◇ UNVERIFIED |
| RCRoberson Contracting, INC. | Williamston | NC | — | ◇ UNVERIFIED |
| RLRobert L Kelly Asphalt Incorporated | Reynolds | IN | — | ◇ UNVERIFIED |
| RMRobert Medina and Sons - Concrete Batch | Taos | NM | — | ◇ UNVERIFIED |
| RARoberts Auto Salvage | Labelle | FL | — | ◇ UNVERIFIED |
| RCRoberts Concrete Products | Roberts | WI | — | ◇ UNVERIFIED |
| RLRoberts, Lehman Company, Walnut | Walnut | MS | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Corona | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Beaumont | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | Corona | CA | — | ◇ UNVERIFIED |
| RRRobertson's Ready Mix | French Camp | 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 |
| RYRobert Young & Sons Milford Asphalt CO | West Milford | NJ | — | ◇ UNVERIFIED |
| RCRobins Construction - 5101 State Hwy 285 | Antonito Area | CO | — | ◇ UNVERIFIED |
| RPRobinson Paving Company - Asphalt Division Plant 1 | Fortson | GA | — | ◇ UNVERIFIED |
| RPRobinson Paving Company - Asphalt Division Plant 2 | Talbotton | GA | — | ◇ UNVERIFIED |
| RARochester Asphalt Walworth Plt - Do Not Use | Walworth | NY | — | ◇ UNVERIFIED |
| RBRochester Bituminous | Rochester | MA | — | ◇ UNVERIFIED |
| RSRochester Sand & Gravel - Plant 53 | Rochester | MN | — | ◇ UNVERIFIED |
| RSRockbridge Stone Products | Glasgow | VA | — | ◇ UNVERIFIED |
| RRRockcastle Ready Mix | Mount Vernon | KY | — | ◇ UNVERIFIED |
| RFRock Falls Hot Mix Asphalt Plt | Rock Falls | IL | — | ◇ UNVERIFIED |
| RCRockford Cement Products CO | Rockford | IL | — | ◇ UNVERIFIED |
| RRRockingham Redi-mix - Clearbrook Facility | Stephenson | VA | — | ◇ UNVERIFIED |
| RRRockingham Redi-mix INC - Mt Sidney | Mount Sidney | VA | — | ◇ UNVERIFIED |
| RRRockingham Redi-mix INC - Strasburg | Strasburg | VA | — | ◇ UNVERIFIED |
| RRRockingham Redi-mix - Mt Jackson Facility | Mount Jackson | VA | — | ◇ UNVERIFIED |
| RRRock Road CO INC | Belvidere | IL | — | ◇ UNVERIFIED |
| RRRock Road Companies INC | Rockford | IL | — | ◇ UNVERIFIED |
| RRRock Road Companies INC | Rochelle | IL | — | ◇ UNVERIFIED |
| RCRock-tred CORP | Skokie | IL | — | ◇ UNVERIFIED |
| RARockview Asphalt Plant | Rockford | IL | — | ◇ UNVERIFIED |
| RARockville Asphalt Plant | Rockville | VA | — | ◇ UNVERIFIED |
| RFRockville Fuel and Feed | Rockville | MD | — | ◇ UNVERIFIED |
| RPRockwall Plant | Rockwall | TX | — | ◇ UNVERIFIED |
| RQRockydale Quarries - Fold N Go | Roanoke | VA | — | ◇ UNVERIFIED |
| RMRocky Mountain Materials & Asphalt INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| RMRocky Mountain Materials & Asphalt INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| RMRocky Mountain Premix - Wabash Plant | Colorado Springs | CO | — | ◇ UNVERIFIED |
| RMRocky Mountain Prestress LLC (structural Plant) | Denver | CO | — | ◇ UNVERIFIED |
| RMRocky Mountain Redi Mix Plt No3 | Rifle | CO | — | ◇ UNVERIFIED |
| RMRocky Mtn Materials & Asphalt Portable | Colorado Springs | CO | — | ◇ UNVERIFIED |