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Manufacturing in Seneca County, Ohio

The register lists 79 facilities in Seneca, Ohio. According to the Bureau of Labor Statistics, 51 establishments in Seneca reported 3,147 employees in 2025. Transportation Equipment Manufacturing is listed in the register 10 times.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and benchmark

Biggest cities

Federal labor statistics counted at least 51 manufacturing establishments in Seneca County in 2025, employing about 3,147 people, counting only the industry subsectors the Bureau of Labor Statistics discloses at this level. This registry lists 79.

Facilities53 FACILITIES

Listing 53 of 79: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityIndustryNAICSEmployeesStatus
M & B Asphalt CO INCTiffinPetroleum and Coal Products Manufacturing32412120–99 ACTIVE
National Electrical Carbon Products, INCFostoriaElectrical Equipment, Appliance & Component Manufacturing335991100–499 ACTIVE
National Machinery LLCTiffinFabricated Metal Product Manufacturing332721100–499 ACTIVE
Palfinger Usa, LLCTiffinTransportation Equipment Manufacturing336211100–499 ACTIVE
Poet Biorefining-fostoriaFostoriaChemical Manufacturing32519320–99 ACTIVE
Tiffin Metal Products CO (0374020165)TiffinFabricated Metal Product Manufacturing332311100–499 ACTIVE
Jeb Modern Machines, LimitedRepublicFabricated Metal Product Manufacturing3327101–19 ACTIVE
Seneca Manufacturing LLCTiffinFabricated Metal Product Manufacturing332710— ACTIVE
American Fine SinterTiffinTransportation Equipment Manufacturing336310100–499 LIKELY ACTIVE
Arnold Machine INCTiffinMachinery Manufacturing33324920–99 LIKELY ACTIVE
Ballreich Foods, LLCTiffinFood Manufacturing31191920–99 LIKELY ACTIVE
Taiho Corporation of AmericaTiffinTransportation Equipment Manufacturing336310100–499 LIKELY ACTIVE
Tiffin Scenic Studios, INC.TiffinTextile Product Mills31412120–99 LIKELY ACTIVE
Webster Mfg COTiffinFabricated Metal Product Manufacturing332618100–499 LIKELY ACTIVE
Roppe Corporation (0374010077)FostoriaPlastics and Rubber Products Manufacturing326299100–499 LIKELY ACTIVE
NSI CrankshaftFostoriaTransportation Equipment Manufacturing33631020–99 LIKELY ACTIVE
Tiffin Foundry & MachineTiffinPrimary Metal Manufacturing3315131–19 UNVERIFIED
Quick Tab II IncTiffinPrinting and Related Support Activities32311120–99 LIKELY ACTIVE
Fry Foods, INCTiffinFood Manufacturing311412500+ LIKELY ACTIVE
Laminate Technologies, INC.TiffinWood Product Manufacturing321214100–499 LIKELY ACTIVE
Nox USFostoriaPlastics and Rubber Products Manufacturing326112100–499 LIKELY ACTIVE
Material Processing and Handling COFostoriaPlastics and Rubber Products Manufacturing3261991–19 UNVERIFIED
Seneca Tiles INCAtticaNonmetallic Mineral Product Manufacturing3271201–19 UNVERIFIED
Autolite (0374010117)FostoriaTransportation Equipment Manufacturing336320— LIKELY ACTIVE
Custom Machine IncTiffinFabricated Metal Product Manufacturing3327101–19 LIKELY ACTIVE
Garsite Progress LLCAlvadaTransportation Equipment Manufacturing336413— LIKELY ACTIVE
Inland Tarp & Liner LLCFostoriaTextile Product Mills314910— LIKELY ACTIVE
Kohart Recycling of FostoriaFostoriaPrimary Metal Manufacturing331314— LIKELY ACTIVE
Scm INC.New RiegelFabricated Metal Product Manufacturing3327101–19 LIKELY ACTIVE
Carmeuse Lime, INC. - Maple Grove OperationsTiffinNonmetallic Mineral Product Manufacturing327410— LIKELY ACTIVE
Maple Grove Materials, INC. - Tiffin Plant (0374020242)TiffinPetroleum and Coal Products Manufacturing324121— LIKELY ACTIVE
Nox US LLC (0374012005)FostoriaPlastics and Rubber Products Manufacturing326130— LIKELY ACTIVE
Alpha Coatings, INC.FostoriaPlastics and Rubber Products Manufacturing326199— UNVERIFIED
Carmeuse Lime Maple Grove OperationsBettsvilleNonmetallic Mineral Product Manufacturing327410— UNVERIFIED
Thyssenkrupp Crankshaft CO LLCFostoriaFabricated Metal Product Manufacturing332111— UNVERIFIED
Aviation MFGFostoriaMachinery Manufacturing33351720–99 LIKELY ACTIVE
CCP Newco, LLCTiffinPlastics and Rubber Products Manufacturing326199100–499 LIKELY ACTIVE
Custom Glass SolutionsFostoriaNonmetallic Mineral Product Manufacturing327215100–499 LIKELY ACTIVE
Filmtec Fabrications, LLCFostoriaMachinery Manufacturing33351920–99 LIKELY ACTIVE
ITL FostoriaFostoriaTextile Product Mills31491020–99 LIKELY ACTIVE
Mennex Processing & PackingFostoriaFood Manufacturing31182420–99 LIKELY ACTIVE
Tiffin - A608TiffinMachinery Manufacturing333243100–499 LIKELY ACTIVE
Tiffin OH SoltechTiffinNonmetallic Mineral Product Manufacturing32799320–99 LIKELY ACTIVE
Toledo Molding & Die Tiffin PlantTiffinTransportation Equipment Manufacturing336390100–499 LIKELY ACTIVE
B J PalletTiffinWood Product Manufacturing321920— UNVERIFIED
BJ Pallet, LLCTiffinWood Product Manufacturing32192020–99 UNVERIFIED
Callies Performance Products, INC.FostoriaTransportation Equipment Manufacturing336399100–499 UNVERIFIED
F & F Sheet Metal and Fabrication, L.L.C.TiffinFabricated Metal Product Manufacturing3323221–19 UNVERIFIED
F & F Sheet Metal and Fabrication, L.L.C.TiffinFabricated Metal Product Manufacturing3329991–19 UNVERIFIED
Machine Tool Design & Fab LLCFostoriaFabricated Metal Product Manufacturing33271020–99 UNVERIFIED

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