| QCQuad County Ready Mix | Troy | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QCQuad County Ready Mix | Breese | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QCQuad County Ready Mix of Swansea | Swansea | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QCQuality Concrete CO | Lanark | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QCQuality Concrete CO INC | Savanna | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix Concrete CO | Fulton | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix Concrete CO | Erie | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix Concrete CO | Prophetstown | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix Concrete CO INC | Annawan | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix Concrete CO INC | Sterling | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix Concrete CO INC | Dixon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix & Materials INC | Macomb | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QQuikrete-chicago | Elburn | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| QWQuincy Wilbert Vault CO | Quincy | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RPRainbow Property Investments Corp. | Loves Park | IL | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| RRRaleigh Ready Mix | Macedonia | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRaleigh Ready Mix | Old Shawneetown | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRaleigh Ready Mix LLC | Marion | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRaleigh Ready Mix LLC | Mcleansboro | IL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RRRaleigh Ready Mix LLC | Crab Orchard | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RMReady Mix Solutions LLC | Cairo | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RCRed-e-mix-granite City | Granite City | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Columbia | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RERed E Mix LLC | O'fallon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RERed E Mix LLC | Mascoutah | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RPRefractory Products CO | Elgin | IL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RCRegal Cut Stone, LLC | Chicago | IL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RAReliable Asphalt Corporation | Chicago | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RVRex Vault and Mausoleum Services, INC. | Newton | IL | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RGRhelge Glass Art | Northbrook | IL | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| RSRid Stone, INC. | Westmont | IL | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RCRippel Construction INC | Bureau Junction | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRippel Ready Mix INC | Bloomington | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRiver Redi Mix | Blackstone | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRiver Redi Mix | Vandalia | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRiver Redi Mix INC | Ransom | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRiver Redi Mix INC | Ransom | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RERjf Enterprises, INC. | Mounds | IL | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| RLR & L Ready Mix Concrete INC | Robinson | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Eureka | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Galesburg | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Lincoln | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products CO | Roanoke | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products INC | Toluca | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products INC | Mossville | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RCRoanoke Concrete Products INC | Normal | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRock River Lumber & Grain CO | Prophetstown | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRogers Ready Mix & Materials | Durand | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRogers Ready Mix & Materials INC | Oregon | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RRRogers Ready Mix & Materials INC | Roscoe | IL | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
