| OGOhio Galvanizing Corporation | Marion, OH | Fabricated Metal Product Manufacturing332812 | 20–99 | ● ACTIVE |
| PBPoet Biorefining - Marion | Marion, OH | Chemical Manufacturing325193 | 20–99 | ● ACTIVE |
| SCSika CORP Marion Operations | Marion, OH | Chemical Manufacturing325520 | 100–499 | ● ACTIVE |
Hanger Prosthetics & Orthotics INC | Marion, OH | Miscellaneous Manufacturing339113 | — | ● ACTIVE |
Roy I Kaufman INC | Marion, OH | Fabricated Metal Product Manufacturing332618 | — | ● ACTIVE |
| HMHildreth Mfg LLC | Marion, OH | Primary Metal Manufacturing331522 | 20–99 | ◐ LIKELY ACTIVE |
| GCGlen-gery CORP | Galion, OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| NSNucor Steel Marion, INC. (0351010017) | Marion, OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SLSilver Line Building Products LLC | Marion, OH | Plastics and Rubber Products Manufacturing326199 | 100–499 | ◐ LIKELY ACTIVE |
| WCWhirlpool CORP Marion Division * | Marion, OH | Electrical Equipment, Appliance & Component Manufacturing335220 | — | ◐ LIKELY ACTIVE |
| BRBuckeye Ready Mix - Plant 14 | Marion, OH | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| GPGraphic Packaging International, LLC (0351010062) | Marion, OH | Paper Manufacturing322212 | — | ◐ LIKELY ACTIVE |
| MIMarion Industries INC. | Marion, OH | Electrical Equipment, Appliance & Component Manufacturing335220 | 500+ | ◐ LIKELY ACTIVE |
| MBMartel Bakery Mix LLC | Martel, OH | Food Manufacturing311824 | — | ◐ LIKELY ACTIVE |
| NLNational Lime & Stone CO Marion Plant | Marion, OH | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| SISemco INC | Marion, OH | Primary Metal Manufacturing331525 | — | ◐ LIKELY ACTIVE |
| MCMorral Companies -main Facility | Morral, OH | Chemical Manufacturing325314 | — | ◐ LIKELY ACTIVE |
| AMArcelor Mittal Marion | Marion, OH | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| COCentral Ohio Farmers Cooperative | Marion, OH | Food Manufacturing311222 | — | ◇ UNVERIFIED |
| GCGlen-gery CORP Caledonia Plant | Caledonia, OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| IPInternational Paper | Marion, OH | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| MCMills CO | Marion, OH | Furniture and Related Product Manufacturing337215 | — | ◇ UNVERIFIED |
| NANachurs Alpine Solutions - Marion Plant | Marion, OH | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| PEPark Enterprise Construction Company LLC | Marion, OH | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| STSypris Technologies-marion Plant | Marion, OH | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| TDTodco Div. Overhead Door CORP. (0351010147) | Marion, OH | Wood Product Manufacturing321911 | — | ◇ UNVERIFIED |
| BOBlend of Seven Winery | Marion, OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| CMCenMac Metalworks | Marion, OH | Fabricated Metal Product Manufacturing332313 | 20–99 | ◐ LIKELY ACTIVE |
| FFFireworks Farm LLC | Marion, OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| HSHighway Safety LLC | Marion, OH | Fabricated Metal Product Manufacturing332322 | 20–99 | ◐ LIKELY ACTIVE |
| JLJ-Lenco - La Rue | Larue, OH | Machinery Manufacturing333511 | 20–99 | ◐ LIKELY ACTIVE |
| MSMarion Silverline Extrusion | Marion, OH | Plastics and Rubber Products Manufacturing326199 | 20–99 | ◐ LIKELY ACTIVE |
| MPMD&A Parts OH | Marion, OH | Machinery Manufacturing333611 | 20–99 | ◐ LIKELY ACTIVE |
| MBMennel Bakery Mix and Foodservice - Martel | Caledonia, OH | Food Manufacturing311824 | 100–499 | ◐ LIKELY ACTIVE |
| MCMorral Companies LLC | Morral, OH | Chemical Manufacturing325314 | 100–499 | ◐ LIKELY ACTIVE |
| MYMotherson Yachiyo US Automotive Systems, Inc | Marion, OH | Transportation Equipment Manufacturing336390 | 100–499 | ◐ LIKELY ACTIVE |
| MMMRC Management Services | Marion, OH | Electrical Equipment, Appliance & Component Manufacturing335224 | 20–99 | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Midwest LLC Marion, Ohio | Marion, OH | Fabricated Metal Product Manufacturing332312 | 20–99 | ◐ LIKELY ACTIVE |
| PGPhoenix Global, LLC-Marion | Marion, OH | Primary Metal Manufacturing331110 | 1–19 | ◐ LIKELY ACTIVE |
| RMRiAlto Mfg Inc | Marion, OH | Fabricated Metal Product Manufacturing332312 | 20–99 | ◐ LIKELY ACTIVE |
| SUSakamura USA Inc. | Marion, OH | Machinery Manufacturing333517 | 1–19 | ◐ LIKELY ACTIVE |
| SISimcote, Inc. - OH | Marion, OH | Fabricated Metal Product Manufacturing332812 | 20–99 | ◐ LIKELY ACTIVE |
| TWThe Wilson Bohannan Company | Marion, OH | Fabricated Metal Product Manufacturing332510 | 20–99 | ◐ LIKELY ACTIVE |
| WJWilliams, Jason | Prospect, OH | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| HPHouser Products, LLC | Marion, OH | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ASAmbassador Steel Fabrication, LLC | Marion, OH | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CPCarro Price LLC | Marion, OH | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| CPCottonwood Pallet | Galion, OH | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| GCGlen-gery CORP. Iberia Plant (0351000051) | Iberia, OH | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| HIHarsco Infrastructure | Marion, OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |