| CCContractors Choice Ready Mix Downtown Plant #4 | Cleveland | OH | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◇ UNVERIFIED |
| CDCreative Design Marble, INC. | Centerville | OH | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◇ UNVERIFIED |
| CSCrummitt & Son Vault CORP. | Martins Ferry | OH | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◇ UNVERIFIED |
| ECExochem CORP | Lorain | OH | Nonmetallic Mineral Product Manufacturing327125 | 20-99 | ◇ UNVERIFIED |
| GFGuardian Fabrication INC * | Millbury | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| HCHall China Company | East Liverpool | OH | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| LCLexington Concrete and Supply Company | Lexington | OH | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| MCMoritz Concrete, INC. | Mansfield | OH | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◇ UNVERIFIED |
| OROhio Ready Mix INC | Huntsville | OH | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◇ UNVERIFIED |
| PRPahl Ready Mix Concrete, INC. Plant 3 | Bryan | OH | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◇ UNVERIFIED |
| PVP V P Industries INC | North Bloomfield | OH | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◇ UNVERIFIED |
| STSeneca Tiles INC | Attica | OH | Nonmetallic Mineral Product Manufacturing327120 | 1-19 | ◇ UNVERIFIED |
| SCStamm Contracting Co., INC | Mantua | OH | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| TCT C Redi-mix INC of Youngstown | Youngstown | OH | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| TCTri County Concrete | North Royalton | OH | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| ABAkron Brick & Block Inc.-akron Brick and Block INC. | Akron | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| ABAkron Burial Vault CO. - Akron Crematory | Akron | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| AIAli Industries, INC. (0829060557) | Fairborn | OH | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum CORP | Massillon | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| ACAnderson Concrete Corp-plant #5 | Westerville | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ACAnderson Concrete Plant #9 | Johnstown | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| AGAp Green Refractories | Oak Hill | OH | Nonmetallic Mineral Product Manufacturing327124 | — | ◇ UNVERIFIED |
| BBBelden Brick Plant 9 (0679005019) | Sugarcreek | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BCBelletech Corporation (0146010102) | Bellefontaine | OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| BABuckeye Abrasive, INC. | Barberton | OH | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| CBCantelli Block & Brick | Huron | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
Carmeuse Lime INC. - Huron Plant (0322010062) | Huron | OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
Carmeuse Lime INC Millersville Operations (0372000081) | Millersville | OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| CLCarmeuse Lime Maple Grove Operations | Bettsville | OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| CHCedar Heights Clay CO (0640010010) | Oak Hill | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| CRCimbar Resources, INC | Wellsville | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| COCity of Dayton Lime Plant | Dayton | OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| CSCity Stone LLC | Milton, Township of | OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CLClosed Loop Glass Solutions | Columbus | OH | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| CICorning Incorporated - Greenville, Oh | Greenville | OH | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| CSCustar Stone CO INC Custar Plant | Custar | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CCCuyahoga Concrete Hummell Rd Plant | Brookpark | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DIDgm INC. | Jackson | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DIDgm, INC. Tow Path Ready Mix | Frankfort | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DED.r.s. Enterprises, INC. | Garfield Heights | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| EMErie Materials INC. | Sandusky | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FPFabcon Precast LLC | Grove City | OH | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| FMFoseco Metallurgical, INC. | Ashtabula | OH | Nonmetallic Mineral Product Manufacturing327124 | — | ◇ UNVERIFIED |
| GLGe Lighting CO Niles Mahoning Glass Plant | Niles | OH | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| GLGe Logan Glass Plant | Logan | OH | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| GCGlen-gery CORP Caledonia Plant | Caledonia | OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GMGranger Materials, INC. | Cleveland | OH | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| GLGreat Lakes an Oldcastle Company | Sheffield | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| HMHarsco Metals - Warren | Warren | OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| HMHeidelberg Materials US Cement LLC | Cleveland | OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |