| NLNational Lime & Stone CO - Carey Oh Lime Plant (0388000043) | Carey | OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| NGNavcour Glassware Llc | Lorain | OH | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| NNexceris | Lewis Center | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| NANorth American Refractories CO | Cincinnati | OH | Nonmetallic Mineral Product Manufacturing327125 | — | ◇ UNVERIFIED |
| NONortheast Ohio Precast LLC | Salem | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| OLOberfield's LLC | Delaware | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| OGOhio Glass and Aluminum Company | Marysville | OH | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| OMOhio Mirror Technologies, INC. | Paulding | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| OO-i | Zanesville | OH | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| OCOsborne Concrete & Stone CO (0243030583) | Grand River | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OIOsborne INC | Mentor | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| OCOwens Corning Oem Solutions Group | Hebron | OH | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| OIOwens Illinois INC | Perrysburg | OH | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| PTParagon Tempered Glass, LLC | Antwerp | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PCPatchwork Ceramics | Coshocton | OH | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| PSPatriot Stone LLC | Columbus | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PLPivotek, LLC | Fairfield | OH | Nonmetallic Mineral Product Manufacturing327111 | — | ◇ UNVERIFIED |
| P1Plant 1 Strasburg | Strasburg | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| PGPLI Group LLC | Milford | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| 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 |
| RHRock Hard Industries, LLC | North Ridgeville | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RCRockhound Crushing and Excavating LLC. | Atwater | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| RPRookwood Pottery Company | Cincinnati | OH | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| RFRust-oleum Fairborn 747 | Fairborn | OH | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| SNSaint-gobain Norpro | Norton | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| STSarasota Transport LLC | Westerville | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ 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 | Minster | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSpring Creek | Sidney | 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 - 25090 Rockport | Cleveland | 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 |
