Lewco INC | Sandusky, OH | Fabricated Metal Product Manufacturing332999 | 500+ | ● ACTIVE |
| MBMaterion Brush INC | Elmore, OH | Primary Metal Manufacturing331410 | 500+ | ● ACTIVE |
Nelson Manufacturing CO | Ottawa, OH | Transportation Equipment Manufacturing336212 | 20–99 | ● ACTIVE |
| OSOkamoto Sandusky Manufacturing, LLC | Sandusky, OH | Plastics and Rubber Products Manufacturing326199 | 100–499 | ● ACTIVE |
Riverside Machine & Automation INC | Genoa, OH | Fabricated Metal Product Manufacturing332710 | 20–99 | ● ACTIVE |
| TIThorworks Industries, INC | Sandusky, OH | Petroleum and Coal Products Manufacturing324121 | — | ● ACTIVE |
| UGUS Gypsum | Gypsum, OH | Nonmetallic Mineral Product Manufacturing327420 | 100–499 | ● ACTIVE |
Toft Dairy INC | Sandusky, OH | Food Manufacturing311511 | 100–499 | ● ACTIVE |
Air Filter Factory LLC | Wakeman, OH | Machinery Manufacturing333413 | — | ● ACTIVE |
Cammann INC | Wakeman, OH | Machinery Manufacturing333517 | — | ● ACTIVE |
| DPDecko Products, LLC | Sandusky, OH | Food Manufacturing311340 | 20–99 | ● ACTIVE |
| HCHK Cooperative, Inc. | Sandusky, OH | Food Manufacturing311611 | 100–499 | ● ACTIVE |
| LALabel Aid, INC. | Huron, OH | Printing and Related Support Activities323111 | — | ● ACTIVE |
Lakecraft, INC. | Port Clinton, OH | Fabricated Metal Product Manufacturing332710 | — | ● ACTIVE |
Pristine Marine, LLC | Port Clinton, OH | Textile Product Mills314910 | — | ● ACTIVE |
Sandusky International INC | Sandusky, OH | Primary Metal Manufacturing331513 | — | ● ACTIVE |
Tiger Material Handling, INC. | Clay Center, OH | Fabricated Metal Product Manufacturing332312 | — | ● ACTIVE |
| AQAmerican Quality Stripping | Sandusky, OH | Plastics and Rubber Products Manufacturing326199 | 20–99 | ◐ LIKELY ACTIVE |
| ANAkzo Nobel Coatings INC. | Huron, OH | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| ACAmerican Colors INC Dispersion Plant Sandusky Ohio | Sandusky, OH | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| GDGraymont Dolime Oh INC * | Genoa, OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| INIndustrial Nut CORP | Sandusky, OH | Fabricated Metal Product Manufacturing332722 | 20–99 | ◐ LIKELY ACTIVE |
| MIMack Iron Works CO | Sandusky, OH | Fabricated Metal Product Manufacturing332313 | 20–99 | ◐ LIKELY ACTIVE |
| PPP&t Products INC | Sandusky, OH | Petroleum and Coal Products Manufacturing324121 | 20–99 | ◐ LIKELY ACTIVE |
| CLCertainteed LLC (0322000017) | Milan, OH | Petroleum and Coal Products Manufacturing324122 | — | ◐ LIKELY ACTIVE |
| PCPolynt Composites Usa, INC (0322020129) | Sandusky, OH | Chemical Manufacturing325510 | — | ◐ LIKELY ACTIVE |
| CMConcast Metal Products CO | Wakeman, OH | Primary Metal Manufacturing331525 | — | ◇ UNVERIFIED |
| IHIac Huron (fka Lear Corp.) (0322010214) | Huron, OH | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| JFJbt Foodtech | Sandusky, OH | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| MHMa Harrison Mfg CO INC | Birmingham, OH | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| MIMetaltek International - Sandusky International Division | Sandusky, OH | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
Ppg Architectural Finishes, INC. | Huron, OH | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| TATenneco Automotive - Monroe Clevite Elastomers (0322000048) | Milan, OH | Chemical Manufacturing325212 | — | ◇ UNVERIFIED |
| UTU.s. Tsubaki | Sandusky, OH | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| IBImagine Baking, INC. | Sandusky, OH | Food Manufacturing311812 | 20–99 | ◐ LIKELY ACTIVE |
| ALA & L Metal Processing | Sandusky, OH | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| ALA & L Metal Processing | Sandusky, OH | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| BIBettcher Industries INC | Birmingham, OH | Machinery Manufacturing333241 | 100–499 | ◐ LIKELY ACTIVE |
| CCCertainteed CORP. | Milan, OH | Petroleum and Coal Products Manufacturing324122 | 100–499 | ◐ LIKELY ACTIVE |
| CTCrooked Tree Vineyard | Kelleys Island, OH | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| EIElite Industrial Controls | Berlin Heights 44814, OH | Fabricated Metal Product Manufacturing332911 | 20–99 | ◐ LIKELY ACTIVE |
| EMErie Materials INC. (0322020211) | Sandusky, OH | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| NMNorthern Manufacturing | Oak Harbor, OH | Fabricated Metal Product Manufacturing332312 | 100–499 | ◐ LIKELY ACTIVE |
| RCRhetech Colors | Sandusky, OH | Chemical Manufacturing325211 | 20–99 | ◐ LIKELY ACTIVE |
| VSVentra Sandusky, LLC (0322020042) | Sandusky, OH | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| AMArdagh Metal Beverage USA INC (0322012011) | Huron, OH | Fabricated Metal Product Manufacturing332431 | — | ◐ LIKELY ACTIVE |
| ACAlpha Coatings INC - Port Clinton Division | Port Clinton, OH | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| BMBirmingham Metal Products INC | Birmingham, OH | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| CBCantelli Block & Brick | Huron, OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
Carmeuse Lime INC. - Huron Plant (0322010062) | Huron, OH | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |