| TFTiffin Foundry & Machine | Tiffin | OH | Primary Metal Manufacturing331513 | 1-19 | ◇ UNVERIFIED |
| BJB J Pallet | Tiffin | OH | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| BPBJ Pallet, LLC | Tiffin | OH | Wood Product Manufacturing321920 | 20-99 | ◇ UNVERIFIED |
| CWCharlie's Welding, INC. | Tiffin | IA | Fabricated Metal Product Manufacturing332710 | 1-19 | ◇ UNVERIFIED |
| FFF & F Sheet Metal and Fabrication, L.L.C. | Tiffin | OH | Fabricated Metal Product Manufacturing332322 | 1-19 | ◇ UNVERIFIED |
| FFF & F Sheet Metal and Fabrication, L.L.C. | Tiffin | OH | Fabricated Metal Product Manufacturing332999 | 1-19 | ◇ UNVERIFIED |
| OLOzzie's Little Hugo's | Tiffin | OH | Food Manufacturing311520 | 1-19 | ◇ UNVERIFIED |
| SFSmith Family Foods, LLC | Tiffin | OH | Food Manufacturing311999 | 1-19 | ◇ UNVERIFIED |
| AIAH International Services, LLC and AH Brewing, LLC | Tiffin | OH | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| CTCrystal Traditions of Tiffin, INC. | Tiffin | OH | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| DHDorel Home Furnishings, INC. | Tiffin | OH | Furniture and Related Product Manufacturing337122 | — | ◇ UNVERIFIED |
| NCNole Commercial Lighting LLC | Tiffin | OH | Electrical Equipment, Appliance & Component Manufacturing335122 | — | ◇ UNVERIFIED |
| PPalfinger | Tiffin | OH | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| RWRatchen Welding and Fabrication LLC | Tiffin | OH | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| RWRatchen Welding and Fabrication LLC | Tiffin | OH | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| TITiffin Insulators Co., LLC | Tiffin | OH | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
