National Electrical Carbon Products, INC | Fostoria, OH | Electrical Equipment, Appliance & Component Manufacturing335991 | 100–499 | ● ACTIVE |
National Machinery LLC | Tiffin, OH | Fabricated Metal Product Manufacturing332721 | 100–499 | ● ACTIVE |
Palfinger Usa, LLC | Tiffin, OH | Transportation Equipment Manufacturing336211 | 100–499 | ● ACTIVE |
| PBPoet Biorefining - Fostoria LLC (0374010235) | Fostoria, OH | Chemical Manufacturing325193 | 20–99 | ● ACTIVE |
| TMTiffin Metal Products CO (0374020165) | Tiffin, OH | Fabricated Metal Product Manufacturing332311 | 100–499 | ● ACTIVE |
| MBM & B Asphalt CO INC | Tiffin, OH | Petroleum and Coal Products Manufacturing324121 | 20–99 | ● ACTIVE |
Jeb Modern Machines, Limited | Republic, OH | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Seneca Manufacturing LLC | Tiffin, OH | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
| WMWebster Mfg CO | Tiffin, OH | Fabricated Metal Product Manufacturing332618 | 100–499 | ◐ LIKELY ACTIVE |
| AMArnold Machine INC | Tiffin, OH | Machinery Manufacturing333249 | 20–99 | ◐ LIKELY ACTIVE |
| RCRoppe Corporation (0374010077) | Fostoria, OH | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| TFTiffin Foundry & Machine | Tiffin, OH | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| AFAmerican Fine Sinter | Tiffin, OH | Transportation Equipment Manufacturing336310 | 100–499 | ◐ LIKELY ACTIVE |
| AAutolite (0374010117) | Fostoria, OH | Transportation Equipment Manufacturing336320 | — | ◐ LIKELY ACTIVE |
| BFBallreich Foods, LLC | Tiffin, OH | Food Manufacturing311919 | 20–99 | ◐ LIKELY ACTIVE |
| GPGarsite Progress LLC | Alvada, OH | Transportation Equipment Manufacturing336413 | — | ◐ LIKELY ACTIVE |
| ITInland Tarp & Liner LLC | Fostoria, OH | Textile Product Mills314910 | — | ◐ LIKELY ACTIVE |
| MGMaple Grove Materials, INC. - Tiffin Plant (0374020242) | Tiffin, OH | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| QTQuick Tab II Inc | Tiffin, OH | Printing and Related Support Activities323111 | 20–99 | ◐ LIKELY ACTIVE |
| TCTaiho Corporation of America | Tiffin, OH | Transportation Equipment Manufacturing336310 | 100–499 | ◐ LIKELY ACTIVE |
| TSTiffin Scenic Studios, INC. | Tiffin, OH | Textile Product Mills314121 | 20–99 | ◐ LIKELY ACTIVE |
| CLCarmeuse Lime, INC. - Maple Grove Operations | Tiffin, OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| NUNox US LLC (0374012005) | Fostoria, OH | Plastics and Rubber Products Manufacturing326130 | — | ◐ LIKELY ACTIVE |
| ACAlpha Coatings, INC. | Fostoria, OH | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CLCarmeuse Lime Maple Grove Operations | Bettsville, OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| MPMaterial Processing and Handling CO | Fostoria, OH | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| STSeneca Tiles INC | Attica, OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| TCThyssenkrupp Crankshaft CO LLC | Fostoria, OH | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| AMAviation MFG | Fostoria, OH | Machinery Manufacturing333517 | 20–99 | ◐ LIKELY ACTIVE |
| CMCaliber Machine LTD | Tiffin, OH | Fabricated Metal Product Manufacturing332322 | — | ◐ LIKELY ACTIVE |
| CCallies | Fostoria, OH | Transportation Equipment Manufacturing336310 | 100–499 | ◐ LIKELY ACTIVE |
| CNCCP Newco, LLC | Tiffin, OH | Plastics and Rubber Products Manufacturing326199 | 100–499 | ◐ LIKELY ACTIVE |
| CGCustom Glass Solutions | Fostoria, OH | Nonmetallic Mineral Product Manufacturing327215 | 100–499 | ◐ LIKELY ACTIVE |
| CGCustom Glass Solutions Fostoria, LLC | Fostoria, OH | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| CMCustom Machine Inc | Tiffin, OH | Fabricated Metal Product Manufacturing332710 | 1–19 | ◐ LIKELY ACTIVE |
| FFFilmtec Fabrications, LLC | Fostoria, OH | Machinery Manufacturing333519 | 20–99 | ◐ LIKELY ACTIVE |
| FWFox Winery | Tiffin, OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| IFITL Fostoria | Fostoria, OH | Textile Product Mills314910 | 20–99 | ◐ LIKELY ACTIVE |
| MPMennex Processing & Packing | Fostoria, OH | Food Manufacturing311824 | 20–99 | ◐ LIKELY ACTIVE |
| NCNSI Crankshaft | Fostoria, OH | Transportation Equipment Manufacturing336310 | 20–99 | ◐ LIKELY ACTIVE |
| PFProgressive Food Products | Tiffin, OH | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| SIScm INC. | New Riegel, OH | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| THThe Honey Bee Winery | Fostoria, OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TLThe Laird Arcade Winery | Tiffin, OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| TTiffin | Tiffin, OH | Food Manufacturing311411 | 100–499 | ◐ LIKELY ACTIVE |
| TATiffin - A608 | Tiffin, OH | Machinery Manufacturing333243 | 100–499 | ◐ LIKELY ACTIVE |
| TOTiffin OH Soltech | Tiffin, OH | Nonmetallic Mineral Product Manufacturing327993 | 20–99 | ◐ LIKELY ACTIVE |
| TMToledo Molding & Die Tiffin Plant | Tiffin, OH | Transportation Equipment Manufacturing336390 | 100–499 | ◐ LIKELY ACTIVE |
| BJB J Pallet | Tiffin, OH | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| AIAH International Services, LLC and AH Brewing, LLC | Tiffin, OH | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |