| PPPompili Precast Concrete | Cleveland | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| PGPure Granite & Stone, LLC | Cincinnati | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PIPvp Industries INC. | North Bloomfield | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix | Van Buren | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QRQuality Ready Mix INC. | Bluffton | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RPRabers Precast Products | Cambridge | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RSReflective Security LLC | Toledo | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| RERichwood Equipment Company LLC | Springfield | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RCRockhound Crushing and Excavating LLC. | Atwater | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| RPRookwood Pottery Company | Cincinnati | OH | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| SNSaint-gobain Norpro | Norton | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| SRScioto Ready Mix | Dublin | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSika Corporation | Marion | OH | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SMSkeeles Manufacturing, Incorporated | Columbus | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SBSnyder Brick and Block | Columbus | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| SBSnyder Brick & Block | Dayton | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| SSSollberger Stone Industries | Warren | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SASostenuto Arts | Granville | OH | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| SCSpring Creek | Sidney | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSpring Creek | Minster | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSpringfield Concrete Block & Brick, INC. | Springfield | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| SCSrm Concrete - 25013 - Harrison | Harrison | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSrm Concrete - 25014 - West Chester | West Chester | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSrm Concrete - Perrysburg Oh | Perrysburg | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSrm Concrete - Warren Oh | Warren | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SPSrm Plant 25082 | Alliance | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SMStaff Management Solutions | Crestline | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| SVSteel Valley Refractories, LLC | Lowellville | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SLStein LLC (1318003929) | Cleveland | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| SHSt. Henry Tile Co., INC. | Greenville | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| SPStone Point Materials | Ohio | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| SMSummit Memorials INC | Akron | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| TCT-clear CORP | Hamilton | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| TBThe Briar Hill Stone Company | Mc Dermott | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| TCThe CLE Holding Company, LLC | Chagrin Falls | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| TLThe Lang Stone Company, Incorporated | Columbus | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| TPThe Pottery Place INC. | Cincinnati | OH | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| TITiffin Insulators Co., LLC | Tiffin | OH | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| TLTrail-rite, LLC | Franklin | OH | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| TCTube City Ims, LLC | Middletown | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| USUnited Stones International INC. | Oakwood Village | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| UOUsdol Osha - Cincinnati Area Office | Brookville | OH | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| VHVan Horn and Associates, LLC | 15443473ille Heights | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| VGV-marble & Granite, LLC | Columbus | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| WLWallstone, LLC | Lewis Center | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| WFWedge & Feathers Enterprises LLC | Defiance | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| WRWyg Refractories | East Palestine | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
