US Factory Map

Plastic injection molding companies in New Jersey

New Jersey has 53 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 Washington, Linden and South Plainfield. That is 1% of the 3,730 such facilities nationwide, and New Jersey ranks #24 of 49 states.

Product
Plastic injection molding companies
Facilities
53
State rank
#24
NAICS
326121, 326122, 326199
Revised
November 1, 2026

Facilities in New Jersey

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
Mannington Mills, IncManningtonAll Other Plastics Product Manufacturing
Albea Americas IncWashingtonAll Other Plastics Product Manufacturing
Captive Plastics IncPhillipsburgAll Other Plastics Product Manufacturing
Nitto, Inc.LakewoodAll Other Plastics Product Manufacturing
North American Fiberglass ManufacturerNewfieldAll Other Plastics Product Manufacturing
Saint-Gobain Performance PlasticsMickletonPlastics Pipe and Pipe Fitting Manufacturing
The Dow Chemical Co.PennsaukenAll Other Plastics Product Manufacturing
Air Cruisers CompanyWall TwpAll Other Plastics Product Manufacturing
Comar PlasticsBuena Vista TwpAll Other Plastics Product Manufacturing
Exothermic Molding IncKenilworthAll Other Plastics Product Manufacturing
Saint Gobain Performance Plastics CorpWayneUnlaminated Plastics Profile Shape Manufacturing
Apache Building Products CoLindenAll Other Plastics Product Manufacturing
Captive Plastics IncPiscatawayAll Other Plastics Product Manufacturing
Dunellen AssociatesDunellenAll Other Plastics Product Manufacturing
Keystone Plastics IncSouth PlainfieldUnlaminated Plastics Profile Shape Manufacturing
Lifetime Fiberglass Pools (Form: Water World)HammontonAll Other Plastics Product Manufacturing
Productive Plastics IncMount LaurelAll Other Plastics Product Manufacturing
Reiss Corp Kenkor Molding DivEnglishtownAll Other Plastics Product Manufacturing
Ronald Mark Assoc Inc - Pitman PlantPitmanAll Other Plastics Product Manufacturing
Rotuba Extruders IncLindenAll Other Plastics Product Manufacturing
Safas CorporationCliftonAll Other Plastics Product Manufacturing
United FeltNewfoundlandPlastics Pipe and Pipe Fitting Manufacturing
Valid USASouth PlainfieldAll Other Plastics Product Manufacturing
Zeus Industrial Products IncBranchburg TwpUnlaminated Plastics Profile Shape Manufacturing
A. O. PolymerSpartaAll Other Plastics Product Manufacturing
Amcor Rigid Packaging USAMillvilleAll Other Plastics Product Manufacturing
American Leather Mfg CoRahwayAll Other Plastics Product Manufacturing
Amloid CorporationSaddle BrookAll Other Plastics Product Manufacturing
Ccl Tube LumbertonLumbertonAll Other Plastics Product Manufacturing
Colorite Plastics CoRidgefieldAll Other Plastics Product Manufacturing
Continental Plastics Co Chemicals IncAvenelAll Other Plastics Product Manufacturing
Dolphin Industries LtdLower BankAll Other Plastics Product Manufacturing
East Coast PlasticsWest BerlinPlastics Pipe and Pipe Fitting Manufacturing
Hishi Plastics USA IncLincoln ParkUnlaminated Plastics Profile Shape Manufacturing
Huls America Inc Nuodex IncEdisonAll Other Plastics Product Manufacturing
Lermer PackagingGarwoodAll Other Plastics Product Manufacturing
Lifetime Fiberglass PoolsHammontonAll Other Plastics Product Manufacturing
Mauser CorpSouth BrunswickAll Other Plastics Product Manufacturing
Nj PlasticsMonroe, Township OfAll Other Plastics Product Manufacturing
Nordson Efd LLCRobbinsvilleAll 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

  • Washington: 2
  • Linden: 2
  • South Plainfield: 2
  • Hammonton: 2
  • Mannington: 1
  • Phillipsburg: 1

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 New Jersey: 127 facilities and Census job counts.