| CMCarter Machine Co. Inc. | Galion | OH | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CPCement Products INC | Mansfield | OH | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
Chardon Laboratories, INC | Reynoldsburg | OH | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| CMChardon Metal Products | Chardon | OH | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| CChemmasters | Madison | OH | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| CSCincinnati Steel Treating | Cincinnati | OH | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| CGCircle Graphics INC | Wooster | OH | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| CMCircle Machine Rolls, INC. | Sebring | OH | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| CCCleveland City Forge | Wellington | OH | Fabricated Metal Product Manufacturing332510 | 20-99 | ◐ LIKELY ACTIVE |
| CSCleveland Steel Container CORP. (0278060360) | Niles | OH | Fabricated Metal Product Manufacturing332439 | 20-99 | ◐ LIKELY ACTIVE |
| CSCleveland Steel Container CORP - Streetsboro (1667080028) | Streetsboro | OH | Fabricated Metal Product Manufacturing332439 | 20-99 | ◐ LIKELY ACTIVE |
| CSConcrete Sealants, INC | Tipp City | OH | Chemical Manufacturing325520 | 20-99 | ◐ LIKELY ACTIVE |
| CTControl Transformer | Cortland | OH | Electrical Equipment, Appliance & Component Manufacturing335311 | 20-99 | ◐ LIKELY ACTIVE |
| CECooper Enterprises, Inc. | Shelby | OH | Furniture and Related Product Manufacturing337212 | 20-99 | ◐ LIKELY ACTIVE |
| CICorrotec Incorporated | Springfield | OH | Machinery Manufacturing333248 | 20-99 | ◐ LIKELY ACTIVE |
| CMCrescent Manufacturing Company Fremont | Fremont | OH | Fabricated Metal Product Manufacturing332215 | 20-99 | ◐ LIKELY ACTIVE |
| CCCrown Cork and Seal | Dayton | OH | Fabricated Metal Product Manufacturing332431 | 20-99 | ◐ LIKELY ACTIVE |
| CPCustom Pultrusions INC | Aurora | OH | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| DPDanfoss Power Solutions Ii LLC | Cleveland | OH | Machinery Manufacturing333613 | 20-99 | ◐ LIKELY ACTIVE |
| DWDayton Wheel Concepts INC | Dayton | OH | Transportation Equipment Manufacturing336322 | 20-99 | ◐ LIKELY ACTIVE |
| DSDefiance Stamping Company | Napoleon | OH | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
Deimling/jeliho Plastics INC | Amelia | OH | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| DSDependable Stamping Company | Euclid | OH | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| DMDie Matic CORP | Brooklyn Heights | OH | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| DEDillin Engineered Systems CORP. | Perrysburg | OH | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| DLDominion Liquid Technologies, LLC | Cincinnati | OH | Food Manufacturing311930 | 20-99 | ◐ LIKELY ACTIVE |
| DHDover High Performance Plastics | Dover | OH | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| DTDowa Tht America INC | Bowling Green | OH | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| DPDrainage Products, INC. | Haviland | OH | Plastics and Rubber Products Manufacturing326122 | 20-99 | ◐ LIKELY ACTIVE |
| DIDynalab INC | Reynoldsburg | OH | Computer and Electronic Product Manufacturing334417 | 20-99 | ◐ LIKELY ACTIVE |
| EIElite Industrial Controls | Berlin Heights 44814 | OH | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| EMEngineered Mobile Solutions INC | Batavia | OH | Transportation Equipment Manufacturing336212 | 20-99 | ◐ LIKELY ACTIVE |
| EPEtna Products INC | Chagrin Falls | OH | Petroleum and Coal Products Manufacturing324191 | 20-99 | ◐ LIKELY ACTIVE |
| EHEuclid Heat Treat CO. | Euclid | OH | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| EPEverhard Products INC | Canton | OH | Fabricated Metal Product Manufacturing332216 | 20-99 | ◐ LIKELY ACTIVE |
| FSFalls Stamping & Welding CO | Cuyahoga Falls | OH | Fabricated Metal Product Manufacturing332119 | 20-99 | ◐ LIKELY ACTIVE |
| FIFiber-tech Industries INC | Washington Court House | OH | Plastics and Rubber Products Manufacturing326130 | 20-99 | ◐ LIKELY ACTIVE |
| FIFiber-tech Industries INC | Washington Court House | OH | Wood Product Manufacturing321211 | 20-99 | ◐ LIKELY ACTIVE |
| FCFirst Choice Packaging | Fremont | OH | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| FBFiske Brothers Refining CO | Toledo | OH | Petroleum and Coal Products Manufacturing324191 | 20-99 | ◐ LIKELY ACTIVE |
| FWFranke's Wood Products, INC. | Marysville | OH | Wood Product Manufacturing321920 | 20-99 | ◐ LIKELY ACTIVE |
| FIFulton Industries, LLC | Wauseon | OH | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| FCFusion Ceramics INC | Carrollton | OH | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| GRGambrinus Roller | Canton | OH | Fabricated Metal Product Manufacturing332991 | 20-99 | ◐ LIKELY ACTIVE |
| GMGerken Materials INC | Napoleon | OH | Petroleum and Coal Products Manufacturing324121 | 20-99 | ◐ LIKELY ACTIVE |
| GCGlass Coatings and Concepts * | Monroe | OH | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| GEGoldsmith & Eggleton, INC | Wadsworth | OH | Plastics and Rubber Products Manufacturing326299 | 20-99 | ◐ LIKELY ACTIVE |
| GCGraphel Corporation | West Chester | OH | Machinery Manufacturing333999 | 20-99 | ◐ LIKELY ACTIVE |
| GMGreen Meadows Paper Company | Massillon | OH | Paper Manufacturing322130 | 20-99 | ◐ LIKELY ACTIVE |
| GLGtl Lumber | Ironton | OH | Wood Product Manufacturing321113 | 20-99 | ◐ LIKELY ACTIVE |