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.
| Facility | City | What EPA lists |
|---|---|---|
| Mannington Mills, Inc | Mannington | All Other Plastics Product Manufacturing |
| Albea Americas Inc | Washington | All Other Plastics Product Manufacturing |
| Captive Plastics Inc | Phillipsburg | All Other Plastics Product Manufacturing |
| Nitto, Inc. | Lakewood | All Other Plastics Product Manufacturing |
| North American Fiberglass Manufacturer | Newfield | All Other Plastics Product Manufacturing |
| Saint-Gobain Performance Plastics | Mickleton | Plastics Pipe and Pipe Fitting Manufacturing |
| The Dow Chemical Co. | Pennsauken | All Other Plastics Product Manufacturing |
| Air Cruisers Company | Wall Twp | All Other Plastics Product Manufacturing |
| Comar Plastics | Buena Vista Twp | All Other Plastics Product Manufacturing |
| Exothermic Molding Inc | Kenilworth | All Other Plastics Product Manufacturing |
| Saint Gobain Performance Plastics Corp | Wayne | Unlaminated Plastics Profile Shape Manufacturing |
| Apache Building Products Co | Linden | All Other Plastics Product Manufacturing |
| Captive Plastics Inc | Piscataway | All Other Plastics Product Manufacturing |
| Dunellen Associates | Dunellen | All Other Plastics Product Manufacturing |
| Keystone Plastics Inc | South Plainfield | Unlaminated Plastics Profile Shape Manufacturing |
| Lifetime Fiberglass Pools (Form: Water World) | Hammonton | All Other Plastics Product Manufacturing |
| Productive Plastics Inc | Mount Laurel | All Other Plastics Product Manufacturing |
| Reiss Corp Kenkor Molding Div | Englishtown | All Other Plastics Product Manufacturing |
| Ronald Mark Assoc Inc - Pitman Plant | Pitman | All Other Plastics Product Manufacturing |
| Rotuba Extruders Inc | Linden | All Other Plastics Product Manufacturing |
| Safas Corporation | Clifton | All Other Plastics Product Manufacturing |
| United Felt | Newfoundland | Plastics Pipe and Pipe Fitting Manufacturing |
| Valid USA | South Plainfield | All Other Plastics Product Manufacturing |
| Zeus Industrial Products Inc | Branchburg Twp | Unlaminated Plastics Profile Shape Manufacturing |
| A. O. Polymer | Sparta | All Other Plastics Product Manufacturing |
| Amcor Rigid Packaging USA | Millville | All Other Plastics Product Manufacturing |
| American Leather Mfg Co | Rahway | All Other Plastics Product Manufacturing |
| Amloid Corporation | Saddle Brook | All Other Plastics Product Manufacturing |
| Ccl Tube Lumberton | Lumberton | All Other Plastics Product Manufacturing |
| Colorite Plastics Co | Ridgefield | All Other Plastics Product Manufacturing |
| Continental Plastics Co Chemicals Inc | Avenel | All Other Plastics Product Manufacturing |
| Dolphin Industries Ltd | Lower Bank | All Other Plastics Product Manufacturing |
| East Coast Plastics | West Berlin | Plastics Pipe and Pipe Fitting Manufacturing |
| Hishi Plastics USA Inc | Lincoln Park | Unlaminated Plastics Profile Shape Manufacturing |
| Huls America Inc Nuodex Inc | Edison | All Other Plastics Product Manufacturing |
| Lermer Packaging | Garwood | All Other Plastics Product Manufacturing |
| Lifetime Fiberglass Pools | Hammonton | All Other Plastics Product Manufacturing |
| Mauser Corp | South Brunswick | All Other Plastics Product Manufacturing |
| Nj Plastics | Monroe, Township Of | All Other Plastics Product Manufacturing |
| Nordson Efd LLC | Robbinsville | All 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.