| LCL-3 Communications Cincinnati Electronics | Mason | OH | Computer and Electronic Product Manufacturing334119 | — | ◇ UNVERIFIED |
| APAir Plastics INC. | Mason | OH | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| BABlackhawk Automotive Plastics, INC. | Mason | OH | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| JHJw Harris CO INC Dba Harris Products Group | Mason | OH | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| MCMulti-color Corporation (mcc-mason) | Mason | OH | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| SUSpear USA | Mason | OH | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| 1L16 Lots Brewing Company LLC | Mason | OH | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| AMArmor Metal Group (1483090487) | Mason | OH | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CFCincinnati Fan and Ventilator Company | Mason | OH | Machinery Manufacturing333412 | — | ◇ UNVERIFIED |
| CPCold Pressed Kings, LLC | Mason | OH | Food Manufacturing311411 | — | ◇ UNVERIFIED |
| DPD.A. Precision Products, Inc. | Mason | OH | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| HMHi-tek Manufacturing INC. | Mason | OH | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| IIIce Industries Deerfield | Mason | OH | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| KHKraft Heinz Foods Company (llc) | Mason | OH | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| MPMinuteman Press | Mason | OH | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| SCStar Combustion Systems LLC | Mason | OH | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| TCThe Common Beer Company, LLC | Mason | OH | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| WPWs Packaging Group, INC. | Mason | OH | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
