| CMCarter Machine Co. Inc. | Galion | OH | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CMChardon Metal Products | Chardon | OH | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
Chemequip Sales INC | Coventry Township | OH | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| CSCincinnati Steel Treating | Cincinnati | OH | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| CMCircle Machine Rolls, INC. | Sebring | OH | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| CPCity Plating | Cleveland | OH | Fabricated Metal Product Manufacturing332813 | 1-19 | ◐ LIKELY ACTIVE |
| CLClark-reliance LLC | Strongsville | OH | Fabricated Metal Product Manufacturing332911 | 100-499 | ▲ REPORTED CLOSED |
| 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 |
Cnc Precision Machine INC | Parkman | OH | Fabricated Metal Product Manufacturing332710 | — | ◐ 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 |
| DSDefiance Stamping Company | Napoleon | OH | Fabricated Metal Product Manufacturing332116 | 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 |
| DTDowa Tht America INC | Bowling Green | OH | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| DPDuray Plating CO. | Cleveland | OH | Fabricated Metal Product Manufacturing332813 | 1-19 | ◐ LIKELY ACTIVE |
| EIElite Industrial Controls | Berlin Heights 44814 | OH | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| EOEnvases Ohio, LLC | Fremont | OH | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| EIErico International CORP. | Solon | OH | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ 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 |
Exact Machine CORP | Sunbury | OH | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| FSFalls Stamping & Welding CO | Cuyahoga Falls | OH | Fabricated Metal Product Manufacturing332119 | 20-99 | ◐ LIKELY ACTIVE |
| FIFlex-Strut, Inc. | Warren | OH | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| FMFlohr Machine Company, Incorporated | Barberton | OH | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| FCFulton County Processing LTD | Delta | OH | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| FIFulton Industries, LLC | Wauseon | OH | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| GRGambrinus Roller | Canton | OH | Fabricated Metal Product Manufacturing332991 | 20-99 | ◐ LIKELY ACTIVE |
| GSGkn Sinter Metals | Gallipolis | OH | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| GSG & S Metal Products, INC. | Cleveland | OH | Fabricated Metal Product Manufacturing332000 | 100-499 | ◐ LIKELY ACTIVE |
| GFGuaranteed Finishing Unlimited INC | Cleveland | OH | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| HPHale Performance Coatings | Toledo | OH | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| HDHass Door CO | Wauseon | OH | Wood Product Manufacturing321911 | 100-499 | ◐ LIKELY ACTIVE |
| HLHelical Line Products Company (0247030987) | Avon Lake | OH | Fabricated Metal Product Manufacturing332618 | 1-19 | ◐ LIKELY ACTIVE |
| HEHerbert E. Orr Company | Paulding | OH | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| HUHerbert USA INC | Akron | OH | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| HMHi-tek Manufacturing INC | Mason | OH | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| KUKern-liebers USA INC | Holland | OH | Fabricated Metal Product Manufacturing332611 | 20-99 | ◐ LIKELY ACTIVE |
| KTKiraly Tool and Die, Inc. | Youngstown | OH | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| KMKuttler Machine | Minerva | OH | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| LCLake City Plating Plant 1 | Ashtabula | OH | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| LNLynx Napoleon Spring Works | Archbold | OH | Fabricated Metal Product Manufacturing332321 | 100-499 | ◐ LIKELY ACTIVE |
| MIMack Iron Works CO | Sandusky | OH | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| MMMagna Machine CO. | Cincinnati | OH | Fabricated Metal Product Manufacturing332710 | 100-499 | ◐ LIKELY ACTIVE |
| MMMagnum Magnetics Corporation | Marietta | OH | Fabricated Metal Product Manufacturing332510 | — | ◐ LIKELY ACTIVE |
Mainstream Waterjet, LLC | Loveland | OH | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| MMancor | Dayton | OH | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |