| RRRogers Ready Mix & Materials INC | Oregon | IL | — | ◇ UNVERIFIED |
| RRRogers Ready-mix & Materials INC | Rochelle | IL | — | ◇ UNVERIFIED |
| RRRogers Ready-mix & Materials INC | Rockford | IL | — | ◇ UNVERIFIED |
| RRRogers Ready-mix & Materials INC | Byron | IL | — | ◇ UNVERIFIED |
| RRRogers Ready-mix & Materials INC | Rochelle | IL | — | ◇ UNVERIFIED |
| RRRogers Redi-mix | Ruma | IL | — | ◇ UNVERIFIED |
| RRRoger's Redi-mix INC | New Athens | IL | — | ◇ UNVERIFIED |
| RRRoger's Redi-mix INC | Valmeyer | IL | — | ◇ UNVERIFIED |
| RRRogers Redi-mix INC | Chester | IL | — | ◇ UNVERIFIED |
| RRRogers Redi-mix INC | Waterloo | IL | — | ◇ UNVERIFIED |
| RRRogers Redi-mix INC | Steeleville | IL | — | ◇ UNVERIFIED |
| RARogue Aggregates | White City | OR | — | ◇ UNVERIFIED |
| RORohn Ornamental Concrete INC | Bethlehem | PA | — | ◇ UNVERIFIED |
| RARolla Asphalt - Rolla Plant | Rolla | MO | — | ◇ UNVERIFIED |
| RLRollcon Llc, Onsite Plant | Clinton | MS | — | ◇ UNVERIFIED |
| RHRolls-royce High Temperature Composites, INC. | Cypress | CA | — | ◇ UNVERIFIED |
| RMRoman Miltchev | Canoga Park | CA | — | ◇ UNVERIFIED |
| RARomeoville Asphalt Plant | Romeoville | IL | — | ◇ UNVERIFIED |
| RBRon Brown & Sons INC | Bear Lake | MI | — | ◇ UNVERIFIED |
| RLRonny Ls | Toluca Lake | CA | — | ◇ UNVERIFIED |
| RLRoofblok Limited | Gardner | MA | — | ◇ UNVERIFIED |
| RTRoof to Road LLC | Louisville | KY | — | ◇ UNVERIFIED |
| R1Roper - 150tph Portable Hma - Gcp3-9916 | Capitan | NM | — | ◇ UNVERIFIED |
| RRRoscoe Ready - Mix INC | Pecatonica | IL | — | ◇ UNVERIFIED |
| RRRoscoe Ready-mix INC | Belvidere | IL | — | ◇ UNVERIFIED |
| RBRose Brothers Paving-lewiston | Lewiston | NC | — | ◇ UNVERIFIED |
| RCRosebud Concrete INC | Mission | SD | — | ◇ UNVERIFIED |
| RGRose Gravel CO - B and G 2000 60tph No0033 | Carlsbad | NM | — | ◇ UNVERIFIED |
| RURosemount Umore Asphalt | Rosemount | MN | — | ◇ UNVERIFIED |
| RRRosenbalm Rockery | Fresno | CA | — | ◇ UNVERIFIED |
| RRRosenbalm Rockery | Madera | CA | — | ◇ UNVERIFIED |
| RCRosenfeld Concrete CORP | Framingham | MA | — | ◇ UNVERIFIED |
| RCRosenfeld Concrete CORP | Hopedale | MA | — | ◇ UNVERIFIED |
| RCRoseville-cemey Construction Materials,llc | Roseville | CA | — | ◇ UNVERIFIED |
| RCRoseville Crushed Concrete | Roseville | MI | — | ◇ UNVERIFIED |
| RHRoss Helbling | Anaheim | CA | — | ◇ UNVERIFIED |
| RIRoss Island Boise Concrete Plant | Portland | OR | — | ◇ UNVERIFIED |
| RIRoss Island Sand and Gravel Tait Facility | Portland | OR | — | ◇ UNVERIFIED |
| RIRoss Island Sand & Gravel CO | Portland | OR | — | ◇ UNVERIFIED |
| RORoss Orville | Montebello | CA | — | ◇ UNVERIFIED |
| RRRost Ready Mix | Springfield | MO | — | ◇ UNVERIFIED |
| RRRost Ready Mix | Springfield | MO | — | ◇ UNVERIFIED |
| RRRoswell Ready Mix Concrete | Roswell | NM | — | ◇ UNVERIFIED |
| RCRouland Concrete and Supplies | Jacksonville | IL | — | ◇ UNVERIFIED |
| RRRound Rock Batch Plant | — | TX | — | ◇ UNVERIFIED |
| RCRoutt Cnty Bd O Comm | Steamboat Spgs | CO | — | ◇ UNVERIFIED |
| RCRowe Construction CO | Normal | IL | — | ◇ UNVERIFIED |
| RCRowe Construction CO | Heyworth | IL | — | ◇ UNVERIFIED |
| RCRowe Construction CO | Normal | IL | — | ◇ UNVERIFIED |
| RCRowe Construction CO - Plant 150 | Bloomington | IL | — | ◇ UNVERIFIED |
| RCRowe Construction Co-plant 170 | Bloomington | IL | — | ◇ UNVERIFIED |
| RCRowe Construction Co-plant 6 | Washington | IL | — | ◇ UNVERIFIED |
| RCRowe Contracting CO | Malden | MA | — | ◇ UNVERIFIED |
| RMRowe Materials - Spotsylvania Plant | Fredericksburg | VA | — | ◇ UNVERIFIED |
| RRRowley Ready Mix, Inc. | Gloucester | MA | — | ◇ UNVERIFIED |
| RNRoxboro - Nc Rmc | Roxboro | NC | — | ◇ UNVERIFIED |
| RWRoyal White Cement | Houston | TX | — | ◇ UNVERIFIED |
| RRR R Beasley Incorporated - Kilmarnock | Kilmarnock | VA | — | ◇ UNVERIFIED |
| RRR & R Garden Supply, INC. | Medley | FL | — | ◇ UNVERIFIED |
| RSR & S Concrete | Fresno | TX | — | ◇ UNVERIFIED |
| RHRti Hot Mix North Asphalt Plant | Georgetown | TX | — | ◇ UNVERIFIED |
| RRR&t Redi Mix - 7355 Colorado 196 | Lamar 3.3 Mi. N of | CO | — | ◇ UNVERIFIED |
| RSRt Site Development, LLC | West Palm Beach | FL | — | ◇ UNVERIFIED |
| RRRuach Resources LLC - Portable Wash Plant I | Tioga | ND | — | ◇ UNVERIFIED |
| RRRuach Resources LLC - Williston Ready Mix Plant | Williston | ND | — | ◇ UNVERIFIED |
| RBRubble Bee Recycling | Stafford | VA | — | ◇ UNVERIFIED |
| RVRuben Valencia | Pico Rivera | CA | — | ◇ UNVERIFIED |
| RCRuby Concrete Company INC | Madisonville | KY | — | ◇ UNVERIFIED |
| RCRuiz Concrete & Paving INC Dba Ruiz Engineering INC | Long Beach | CA | — | ◇ UNVERIFIED |
| RHRulon Harper Construction, INC. Pit No. 6 | Salt Lake County | UT | — | ◇ UNVERIFIED |
| RHRulon Harper Construction Pit #12 | Tooele | UT | — | ◇ UNVERIFIED |
| RLRumble Landfill #2 | Sugar Creek | MO | — | ◇ UNVERIFIED |
| RBRussell Block Co., INC. | Russell | KS | — | ◇ UNVERIFIED |
| RPRussell Paving Co, INC. | East New Market | MD | — | ◇ UNVERIFIED |
| RRRussell Ready Mix Concrete, INC. | Russell | KS | — | ◇ UNVERIFIED |
| RSRussell Standard Baltimore | Curtis Bay | MD | — | ◇ UNVERIFIED |
| RSRussell Standard CORP | Waterford | PA | — | ◇ UNVERIFIED |
| RSRussell Standard Seaford | Seaford | DE | — | ◇ UNVERIFIED |
| RVRustin Vault & Monument Co., INC. | Chipley | FL | — | ◇ UNVERIFIED |
| RGRutherford Greenbrae LLC | Greenbrae | CA | — | ◇ UNVERIFIED |
| RCRvier City Redemix | Salmon | ID | — | ◇ UNVERIFIED |
| RBRw Busse Excavating | Grand Lake | CO | — | ◇ UNVERIFIED |
| RGRwc Group | Huntington Park | CA | — | ◇ UNVERIFIED |
| RHRwe Holding CO - West Pittsburg Plant | New Castle | PA | — | ◇ UNVERIFIED |
| RSR.w. Sidley, INC. | Youngwood | PA | — | ◇ UNVERIFIED |
| RSR.w. Sidley, INC. | Slippery Rock | PA | — | ◇ UNVERIFIED |
| RERyco Equipment Leasing R L L P | Colorado City | CO | — | ◇ UNVERIFIED |
| SPSabine Pass Cbp | Port Arthur | TX | — | ◇ UNVERIFIED |
| SPSabine Pass Lng LP - Sabine Pass Lng Import Terminal | Johnsons Bayou | LA | — | ◇ UNVERIFIED |
| SPSabine Pass Washout Facility | Port Arthur | TX | — | ◇ UNVERIFIED |
| SCSacramento City Unified School District | Sacramento | CA | — | ◇ UNVERIFIED |
| SPSacramento Prestige Gunite | Rocklin | CA | — | ◇ UNVERIFIED |
| SSSacramento Stucco | West Sacramento | CA | — | ◇ UNVERIFIED |
| SFSafe Fix | Maywood | CA | — | ◇ UNVERIFIED |
| SASaginaw Asphalt Company - Plant 2 | Saginaw | MI | — | ◇ UNVERIFIED |
| SASaginaw Asphalt Company - Plant 4 | Saginaw | MI | — | ◇ UNVERIFIED |
| SASaginaw Asphalt Paving CO | Vassar | MI | — | ◇ UNVERIFIED |
| SASaginaw Asphalt Paving CO | Ubly | MI | — | ◇ UNVERIFIED |
| SCSaguache Cnty Road & Bridge Dept | Del Norte | CO | — | ◇ UNVERIFIED |
| SCSaint-gobain Ceramics & Plastics INC | Devens | MA | — | ◇ UNVERIFIED |