US Factory Map

Plastic injection molding companies in Illinois

Illinois has 147 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 Elk Grove Village, West Chicago and Chicago. That is 4% of the 3,730 such facilities nationwide, and Illinois ranks #8 of 49 states.

Product
Plastic injection molding companies
Facilities
147
State rank
#8
NAICS
326121, 326122, 326199
Revised
November 1, 2026

Facilities in Illinois

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
Viscofan USA, Inc.DanvilleUnlaminated Plastics Profile Shape Manufacturing
Armstrong Flooring IncKankakeeAll Other Plastics Product Manufacturing
Amcor Flexibles Healthcare IncMundeleinAll Other Plastics Product Manufacturing
Caterpillar Inc - Mossville FacilityMossvilleAll Other Plastics Product Manufacturing
Prairie State Generating StationMarissaAll Other Plastics Product Manufacturing
Custom Marble IncMillstadtAll Other Plastics Product Manufacturing
New Wincup Holdings IncWest ChicagoAll Other Plastics Product Manufacturing
Southern Illinois Storm Shelters IncBentonAll Other Plastics Product Manufacturing
Sweetheart Solo Cup CoChicagoUnlaminated Plastics Profile Shape Manufacturing
Carstin Brands IncArthurAll Other Plastics Product Manufacturing
Eakas CorpPeruAll Other Plastics Product Manufacturing
Valto IncChannahonAll Other Plastics Product Manufacturing
Imperial Marble CorpSomonaukAll Other Plastics Product Manufacturing
Latham Pool Products Inc D/B/A Viking Pools-IlDixAll Other Plastics Product Manufacturing
Marble WorksSouth ElginAll Other Plastics Product Manufacturing
The Dow Chemical CoJolietAll Other Plastics Product Manufacturing
Apollo PlasticsChicagoAll Other Plastics Product Manufacturing
Silgan White Cap CorpChampaignAll Other Plastics Product Manufacturing
Vanseal CorpVandaliaAll Other Plastics Product Manufacturing
Beecher Protective Solutions Packaging PlantBeecherPlastics Pipe and Pipe Fitting Manufacturing
Bema IncElmhurstAll Other Plastics Product Manufacturing
Bio Star Films LLCChicagoAll Other Plastics Product Manufacturing
Clear Pack CompanyFranklin ParkAll Other Plastics Product Manufacturing
Com-Pac International IncCarbondaleAll Other Plastics Product Manufacturing
Consolidated Container CoElk Grove VillageAll Other Plastics Product Manufacturing
Custom Coating Innovations IncBellevilleAll Other Plastics Product Manufacturing
Davies Molding Co LLCCarol StreamAll Other Plastics Product Manufacturing
Diller Tile Company Inc.ChatsworthPlastics Pipe and Pipe Fitting Manufacturing
Dow Chemical CoCharlestonAll Other Plastics Product Manufacturing
Hoffer Plastics CorpSouth ElginAll Other Plastics Product Manufacturing
HuntsmanRingwoodAll Other Plastics Product Manufacturing
Industrial Fiber Glass IncMelrose ParkAll Other Plastics Product Manufacturing
Itw Hi-ConeCharlestonAll Other Plastics Product Manufacturing
Kastalon IncAlsipAll Other Plastics Product Manufacturing
Medline Inc.MundeleinAll Other Plastics Product Manufacturing
Mikron MidwestWinnebagoAll Other Plastics Product Manufacturing
Olon Industries IncGenevaAll Other Plastics Product Manufacturing
Pactiv LLCGrant ParkAll Other Plastics Product Manufacturing
Pactiv LLCMantenoAll Other Plastics Product Manufacturing
Perfect Plastic Printing CorpSaint CharlesAll 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

  • Elk Grove Village: 8
  • West Chicago: 7
  • Chicago: 7
  • Saint Charles: 4
  • Des Plaines: 4
  • Mundelein: 3

By product code

  • All Other Plastics Product Manufacturing (NAICS 326199): 36 of those shown
  • Unlaminated Plastics Profile Shape Manufacturing (NAICS 326121): 2 of those shown
  • Plastics Pipe and Pipe Fitting Manufacturing (NAICS 326122): 2 of those shown

All plastics and rubber manufacturing in Illinois: 262 facilities and Census job counts.