Plastic injection molding companies in Washington
Washington has 59 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 Fife, Tacoma and Washougal. That is 2% of the 3,730 such facilities nationwide, and Washington ranks #21 of 49 states.
- Product
- Plastic injection molding companies
- Facilities
- 59
- State rank
- #21
- NAICS
- 326121, 326122, 326199
- Revised
- November 1, 2026
Facilities in Washington
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 |
|---|---|---|
| Aquatic Co | Yelm | All Other Plastics Product Manufacturing |
| Attbar Inc | Ridgefield | Unlaminated Plastics Profile Shape Manufacturing |
| Fiber Tech Industries | Spokane | All Other Plastics Product Manufacturing |
| Mcclarin Plastics, LLC | Wapato | All Other Plastics Product Manufacturing |
| Ershigs, Inc. | Bellingham | Plastics Pipe and Pipe Fitting Manufacturing |
| Excelsior Packaging Group Inc | Vancouver | All Other Plastics Product Manufacturing |
| Applied Finishing Inc | Mukilteo | All Other Plastics Product Manufacturing |
| Composite Aquatic Innovations | Arlington | All Other Plastics Product Manufacturing |
| Jensen Precast | Shelton | All Other Plastics Product Manufacturing |
| Mikron Industries | Kent | Unlaminated Plastics Profile Shape Manufacturing |
| Milgard Manufacturing Inc Fiberglass | Fife | All Other Plastics Product Manufacturing |
| Advanced Drainage Systems | Tumwater | Plastics Pipe and Pipe Fitting Manufacturing |
| Associated Materials LLC | Fife | All Other Plastics Product Manufacturing |
| Chinook Industrial Park | Union Gap | All Other Plastics Product Manufacturing |
| Global Metals And Erectors | Tacoma | All Other Plastics Product Manufacturing |
| Melcher Mfg Co Inc | Spokane | All Other Plastics Product Manufacturing |
| Milgard Manufacturing Inc Tacoma Pultrusion | Tacoma | All Other Plastics Product Manufacturing |
| Milgard Mfg Vinyl Extrusion M And M | Fife | Unlaminated Plastics Profile Shape Manufacturing |
| Cresline Northwest LLC | Chehalis | Plastics Pipe and Pipe Fitting Manufacturing |
| Hayes Cabinets Inc | Woodland | All Other Plastics Product Manufacturing |
| Jm Eagle | Sunnyside | Plastics Pipe and Pipe Fitting Manufacturing |
| Kwik Lok Corp | Yakima | All Other Plastics Product Manufacturing |
| Mcconkey And Co Inc | Sumner | All Other Plastics Product Manufacturing |
| Mohawk Northern Plastics Inc | Auburn | All Other Plastics Product Manufacturing |
| Piller Aimmco Grant St | Washougal | All Other Plastics Product Manufacturing |
| Bovar Plastic | Ridgefield | All Other Plastics Product Manufacturing |
| Customer Support Svcs And Plastics | Everett | All Other Plastics Product Manufacturing |
| Ferguson Industrial Plastics | Washougal | Plastics Pipe and Pipe Fitting Manufacturing |
| Filtrona Extrusion | Tacoma | Unlaminated Plastics Profile Shape Manufacturing |
| Macro Plastics Washington | Union Gap | All Other Plastics Product Manufacturing |
| Mw Manufacturers Inc. D/B/A Ply Gem Pacific Windows | Auburn | All Other Plastics Product Manufacturing |
| Norwesco | Washougal | All Other Plastics Product Manufacturing |
| Specified Fittings Inc | Bellingham | Plastics Pipe and Pipe Fitting Manufacturing |
| Western Container | Fife | All Other Plastics Product Manufacturing |
| A & B Plastics Inc Yakima | Yakima | Unlaminated Plastics Profile Shape Manufacturing |
| Advanced Drainage Systems Inc | Washougal | Plastics Pipe and Pipe Fitting Manufacturing |
| Aim Aerospace 1517 Building | Auburn | All Other Plastics Product Manufacturing |
| Alside Windows Nw | Bothell | All Other Plastics Product Manufacturing |
| Attbar Inc Vancouver | Vancouver | All Other Plastics Product Manufacturing |
| Chemgrate | Woodinville | 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
- Fife: 5
- Tacoma: 5
- Washougal: 5
- Spokane: 4
- Bellingham: 3
- Vancouver: 3
By product code
- All Other Plastics Product Manufacturing (NAICS 326199): 28 of those shown
- Plastics Pipe and Pipe Fitting Manufacturing (NAICS 326122): 7 of those shown
- Unlaminated Plastics Profile Shape Manufacturing (NAICS 326121): 5 of those shown
All plastics and rubber manufacturing in Washington: 86 facilities and Census job counts.