US Factory Map

Plastic injection molding companies in Wisconsin

Wisconsin has 107 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 Manitowoc, Sheboygan and Baraboo. That is 3% of the 3,730 such facilities nationwide, and Wisconsin ranks #11 of 49 states.

Product
Plastic injection molding companies
Facilities
107
State rank
#11
NAICS
326121, 326122, 326199
Revised
November 1, 2026

Facilities in Wisconsin

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
Ecc Corrosion IncWisconsin RapidsAll Other Plastics Product Manufacturing
Mastermold LLCJohnson CreekAll Other Plastics Product Manufacturing
Custom Pultrusions IncBarabooAll Other Plastics Product Manufacturing
Bemis ManufacturingSheboygan FallsAll Other Plastics Product Manufacturing
Fiberdome Products, LLCLake MillsAll Other Plastics Product Manufacturing
Fiberpro Inc DBA Advanced Fiber ProductsLa CrossePlastics Pipe and Pipe Fitting Manufacturing
Gpi CorpSchofieldAll Other Plastics Product Manufacturing
Carfair Composites USA IncGillettPlastics Pipe and Pipe Fitting Manufacturing
Corrim Company Frp LLCOshkoshAll Other Plastics Product Manufacturing
Carfair Composites USA IncWausaukeeAll Other Plastics Product Manufacturing
Custom Fiberglass MoldingWeyauwegaAll Other Plastics Product Manufacturing
Feradyne OutdoorsSuperiorAll Other Plastics Product Manufacturing
Five Star Coatings GroupTwin LakesAll Other Plastics Product Manufacturing
Five Star Fabricating IncTwin LakesAll Other Plastics Product Manufacturing
National Manufacturing Group - FranksvilleFranksvilleAll Other Plastics Product Manufacturing
Tulip Richardson ManufacturingMilwaukeeAll Other Plastics Product Manufacturing
Amcor Healthcare Packaging IncOshkoshAll Other Plastics Product Manufacturing
Badger Color Concentrates IncMukwonagoAll Other Plastics Product Manufacturing
Clack CorpWindsorAll Other Plastics Product Manufacturing
Franklin Electric Fueling Systems DeforestDeforestAll Other Plastics Product Manufacturing
Intek Medford, LLCMedfordAll Other Plastics Product Manufacturing
Jacobson Paint Finishes LLCManitowocAll Other Plastics Product Manufacturing
Kubin-NicholsonMilwaukeeAll Other Plastics Product Manufacturing
Lavelle Industries IncBurlingtonAll Other Plastics Product Manufacturing
Mastermold LLCMaustonUnlaminated Plastics Profile Shape Manufacturing
North American Pipe CorpJanesvillePlastics Pipe and Pipe Fitting Manufacturing
Northern Engraving CorpHolmenAll Other Plastics Product Manufacturing
Phillips Plastics Corp - Custom IPhillipsAll Other Plastics Product Manufacturing
Phillips Plastics Corp Custom IIPhillipsAll Other Plastics Product Manufacturing
Phillips-Medisize, LLCHudsonAll Other Plastics Product Manufacturing
Pregis Sharp Systems LLCSussexAll Other Plastics Product Manufacturing
Premold CorpOconomowocUnlaminated Plastics Profile Shape Manufacturing
Protect-AllDarienAll Other Plastics Product Manufacturing
Seaquist ClosuresMukwonagoAll Other Plastics Product Manufacturing
Spartek IncSpartaUnlaminated Plastics Profile Shape Manufacturing
Tekra Corp Coating/laminating DivNew BerlinAll Other Plastics Product Manufacturing
Advanced Chip And Circuit MaterialsSpartaAll Other Plastics Product Manufacturing
Aeroquip CorpWausauUnlaminated Plastics Profile Shape Manufacturing
Amalga Composites IncWest AllisAll Other Plastics Product Manufacturing
Asyst Technologies LPKenoshaAll 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

  • Manitowoc: 5
  • Sheboygan: 5
  • Baraboo: 4
  • Milwaukee: 4
  • Germantown: 4
  • Medford: 3

By product code

  • All Other Plastics Product Manufacturing (NAICS 326199): 33 of those shown
  • Unlaminated Plastics Profile Shape Manufacturing (NAICS 326121): 4 of those shown
  • Plastics Pipe and Pipe Fitting Manufacturing (NAICS 326122): 3 of those shown

All plastics and rubber manufacturing in Wisconsin: 176 facilities and Census job counts.