| LFL3harris Fuzing and Ordnance Systems, INC. | Cincinnati | — | ◐ LIKELY ACTIVE |
| LTLambda Technologies Group | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
| MLMazzella Lifting Technologies (Cincinnati, OH) | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
 MP Acquisition Group | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| NSNeiheisel Steel CORP | Cincinnati | — | ◐ LIKELY ACTIVE |
| PCPME Cincinnati | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| PMPrecision Machine, Inc. | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
 R.s. Hughes Company, INC. | Cincinnati | — | ◐ LIKELY ACTIVE |
| SSeabrook | Cincinnati | 1–19 | ◐ LIKELY ACTIVE |
| SSteelcraft | Cincinnati | 500+ | ◐ LIKELY ACTIVE |
| SISteel It, LLC | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| TMThe Metalworking Group - Pippin Road | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| TWThe Wm. Lang & Sons Co. | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
 Upside Innovations | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| VMValley Metal Works Inc. | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| WCWall Colmonoy - Aerobraze Engineered Technologies | Cincinnati | 20–99 | ◐ LIKELY ACTIVE |
| XIXtek Inc | Cincinnati | 100–499 | ◐ LIKELY ACTIVE |
| AAAll American Ironworks and Ornamental Metals LLC | Cincinnati | — | ◐ LIKELY ACTIVE |
| 4M4200 Malsbary Road LLC | Cincinnati | — | ◇ UNVERIFIED |
| ASAllegion S&s Holding Company INC. | Cincinnati | — | ◇ UNVERIFIED |
| ASAlloyd Sheet Metal & Insulation CO. INC | Cincinnati | — | ◇ UNVERIFIED |
| ARAlumina Railing Products, INC. | Cincinnati | — | ◇ UNVERIFIED |
| BIBrodbeck Ironworks LLC | Cincinnati | — | ◇ UNVERIFIED |
| CICinex, INC. | Cincinnati | — | ◇ UNVERIFIED |
| CMContractors Materials Company | Cincinnati | — | ◇ UNVERIFIED |
| CTCtek Tool & Machine Co | Cincinnati | — | ◇ UNVERIFIED |
| EWEarth Water Company, LLC | Cincinnati | — | ◇ UNVERIFIED |
| FSFirst Source Fabricating, Inc. | Cincinnati | — | ◇ UNVERIFIED |
| HAHawks & Assoiciates, INC. | Cincinnati | — | ◇ UNVERIFIED |
| JRJAD Repair Services LLC | Cincinnati | — | ◇ UNVERIFIED |
| KIKahacq, INC. | Cincinnati | — | ◇ UNVERIFIED |
| KMKloeckner Metals | Cincinnati | — | ◇ UNVERIFIED |
| KMKnowlton Manufacturing Co., INC. | Cincinnati | — | ◇ UNVERIFIED |
| LILindan Industries LLC | Cincinnati | — | ◇ UNVERIFIED |
| MWMachine Worx of Cincinnati | Cincinnati | — | ◇ UNVERIFIED |
| MFMechanical Finishers INC LLC | Cincinnati | — | ◇ UNVERIFIED |
| MPMetal Polishing Specialties, LLC | Cincinnati | — | ◇ UNVERIFIED |
| PCP & C Metal Polishing, INC. | Cincinnati | — | ◇ UNVERIFIED |
| PIPKI, Inc. | Cincinnati | — | ◇ UNVERIFIED |
| PIPrecision Image Etching LLC | Cincinnati | — | ◇ UNVERIFIED |
| QCQueen City Steel Treating Company | Cincinnati | — | ◇ UNVERIFIED |
| RCRadius Concepts LLC | Cincinnati | — | ◇ UNVERIFIED |
| RRR.J.R. Radiator, Inc. | Cincinnati | — | ◇ UNVERIFIED |
| RBRough Brothers Manufacturing, INC. | Cincinnati | — | ◇ UNVERIFIED |
| SCSchlage Company, LLC | Cincinnati | — | ◇ UNVERIFIED |
| SISeilkop Industries, INC. | Cincinnati | — | ◇ UNVERIFIED |
| SAStuebing Automatic Machine Company | Cincinnati | — | ◇ UNVERIFIED |
| TAThe a & B Deburring Company | Cincinnati | — | ◇ UNVERIFIED |
| THThe Habegger Corporation | Cincinnati | — | ◇ UNVERIFIED |
| TSTim Singer LLC | Cincinnati | — | ◇ UNVERIFIED |
