US Factory Map

Plastic injection molding companies in Ohio

Ohio has 248 plastic injection molders in EPA records, facilities that list codes for plastic parts and products made by molding, including injection-molded components. The most are in Ashtabula, Columbus and Cleveland. That is 7% of the 3,730 such facilities nationwide, and Ohio ranks #3 of 49 states.

Product
Plastic injection molding companies
Facilities
248
State rank
#3
NAICS
326121, 326122, 326199
Revised
November 1, 2026

Facilities in Ohio

These are active facilities in EPA's ECHO database that list a code for plastic parts and products made by molding, including injection-molded components. The 40 shown first are the ones with the most EPA program records, which usually means the larger sites.

FacilityCityWhat EPA lists
Continental Structural Plastics - CareyCareyAll Other Plastics Product Manufacturing
Dayton Power & Light Co JM Stuart StationAberdeenAll Other Plastics Product Manufacturing
Neaton Auto Products Manufacturing IncEatonAll Other Plastics Product Manufacturing
Cardinal Power PlantBrilliantAll Other Plastics Product Manufacturing
Lyondellbasell Composites LLCConneautAll Other Plastics Product Manufacturing
Röchling Industrial Cleveland (1318544510)South EuclidAll Other Plastics Product Manufacturing
A.r.e. Accessories, LLC (1576131793)MassillonAll Other Plastics Product Manufacturing
Decorative Paint Incorporated (0386000027)MontpelierAll Other Plastics Product Manufacturing
Dow Chemical Company - Ironton, Ohio BranchIrontonAll Other Plastics Product Manufacturing
Molded Fiber Glass Composite Systems CompanyAshtabulaAll Other Plastics Product Manufacturing
Plaskolite, LLC.ColumbusAll Other Plastics Product Manufacturing
Premix-Hadlock Composites LLCGenevaAll Other Plastics Product Manufacturing
Ventra Salem, LLC (0215090195)SalemAll Other Plastics Product Manufacturing
Allied Moulded Products, Inc. (0386010104)BryanAll Other Plastics Product Manufacturing
Architectural Fiberglass Inc. (1318008262)ClevelandAll Other Plastics Product Manufacturing
Azek Building Products (1414010168)WilmingtonUnlaminated Plastics Profile Shape Manufacturing
Csp Innovations IncConneautAll Other Plastics Product Manufacturing
Custom Pultrusions IncAuroraAll Other Plastics Product Manufacturing
Fiber-Tech Industries IncWashington Court HouseAll Other Plastics Product Manufacturing
Formica Corporation - Evendale (1431150801)CincinnatiUnlaminated Plastics Profile Shape Manufacturing
International Cushioning Company LLC - Fremont OhFremontAll Other Plastics Product Manufacturing
Jay Plastics IncMansfieldAll Other Plastics Product Manufacturing
Ohio Valley Electric - Kyger Creek StationCheshireAll Other Plastics Product Manufacturing
Plastpro IncAshtabulaAll Other Plastics Product Manufacturing
Teijin Automotive Technologies, Inc. (0387000042)North BaltimoreAll Other Plastics Product Manufacturing
Zehrco-Giancola Composites IncAshtabulaAll Other Plastics Product Manufacturing
Automated Packaging Systems, Inc. - GarfieldGarfield HeightsAll Other Plastics Product Manufacturing
Comfort Line Ltd. (0448011664)ToledoAll Other Plastics Product Manufacturing
Composite Engineering LLC. (1413000550)AmeliaAll Other Plastics Product Manufacturing
Cpca Manufacturing, LLCDaytonAll Other Plastics Product Manufacturing
Inoac Exterior Systems, LLC (0372030199)FremontAll Other Plastics Product Manufacturing
Iten Industries, Inc. - Plant 1 (0204010112)AshtabulaAll Other Plastics Product Manufacturing
Iten Industries, Inc., Plant 4AshtabulaAll Other Plastics Product Manufacturing
Marble Arch Products Inc. (1483040411)FranklinAll Other Plastics Product Manufacturing
Midmark Corporation (1483060076)LebanonAll Other Plastics Product Manufacturing
Molten (North America) CorpFindlayAll Other Plastics Product Manufacturing
Perry Fiberglass Products, Inc.ElyriaAll Other Plastics Product Manufacturing
Plas-Tanks Industries, Inc. (1409040850)HamiltonAll Other Plastics Product Manufacturing
Shelter Works (0317012011)BucyrusAll Other Plastics Product Manufacturing
Sigma Ohio Industries Plant 3JeffersonAll Other Plastics Product Manufacturing

Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.

Where they are

  • Ashtabula: 10
  • Columbus: 7
  • Cleveland: 7
  • Dayton: 7
  • Fremont: 6
  • Alliance: 6

By product code

  • All Other Plastics Product Manufacturing (NAICS 326199): 38 of those shown
  • Unlaminated Plastics Profile Shape Manufacturing (NAICS 326121): 2 of those shown

All plastics and rubber manufacturing in Ohio: 444 facilities and Census job counts.