Plastic injection molding companies in Texas
Texas has 233 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 Houston, Dallas and Fort Worth. That is 6% of the 3,730 such facilities nationwide, and Texas ranks #4 of 49 states.
- Product
- Plastic injection molding companies
- Facilities
- 233
- State rank
- #4
- NAICS
- 326121, 326122, 326199
- Revised
- November 1, 2026
Facilities in Texas
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 |
|---|---|---|
| Dartco of Texas Waxahachie Site | Waxahachie | Unlaminated Plastics Profile Shape Manufacturing |
| Aquatic | Lancaster | All Other Plastics Product Manufacturing |
| Chem Pruf | Brownsville | All Other Plastics Product Manufacturing |
| Bfi Southwest Landfill | Canyon | All Other Plastics Product Manufacturing |
| Dolco Packaging | Dallas | All Other Plastics Product Manufacturing |
| Ecs Facility | Belton | All Other Plastics Product Manufacturing |
| Fibergrate Composite Structures Incorporated | Stephenville | Unlaminated Plastics Profile Shape Manufacturing |
| Giddings Main Plant | Giddings | All Other Plastics Product Manufacturing |
| Hobas Pipe USA | Houston | Plastics Pipe and Pipe Fitting Manufacturing |
| Iowa Park Plant | Iowa Park | Unlaminated Plastics Profile Shape Manufacturing |
| Mansfield Plumbing Products | Henderson | All Other Plastics Product Manufacturing |
| National Oilwell Varco | Belton | All Other Plastics Product Manufacturing |
| Nov Fiber Glass Systems Burkburnett | Burkburnett | Plastics Pipe and Pipe Fitting Manufacturing |
| Pactiv Corp | Corsicana | All Other Plastics Product Manufacturing |
| Royal Baths Mfg Burns St Facility | Richland Hills | Unlaminated Plastics Profile Shape Manufacturing |
| Sawyer Oilfield Brownwood Facility | Brownwood | All Other Plastics Product Manufacturing |
| Silsbee Plastics Plant | Silsbee | Unlaminated Plastics Profile Shape Manufacturing |
| Temple North | Temple | Unlaminated Plastics Profile Shape Manufacturing |
| Xerxes Corp Seguin Plant | Seguin | Unlaminated Plastics Profile Shape Manufacturing |
| Andrews Plant | Andrews | Unlaminated Plastics Profile Shape Manufacturing |
| Clarke Products Waco Facility | Waco | Unlaminated Plastics Profile Shape Manufacturing |
| Diamond Fiberglass Fabricators | Victoria | All Other Plastics Product Manufacturing |
| Fiberglass Truck Parts | Gainesville | Unlaminated Plastics Profile Shape Manufacturing |
| L F Manufacturing Qfrp | Giddings | All Other Plastics Product Manufacturing |
| Leisure Pools And Spas Manufacturing North America | New Braunfels | Unlaminated Plastics Profile Shape Manufacturing |
| Lonestar Fiberglass New Braunfels | New Braunfels | Unlaminated Plastics Profile Shape Manufacturing |
| Market Street Plant | Karnes City | Plastics Pipe and Pipe Fitting Manufacturing |
| Martech | Midlothian | All Other Plastics Product Manufacturing |
| Plastic Parts | Gainesville | All Other Plastics Product Manufacturing |
| Red Ewald | Karnes City | Unlaminated Plastics Profile Shape Manufacturing |
| Royal Baths Manufacturing | Houston | All Other Plastics Product Manufacturing |
| Teijin Automotive Technologies Texas | Seguin | All Other Plastics Product Manufacturing |
| United Fiberglass Inc | Amarillo | Unlaminated Plastics Profile Shape Manufacturing |
| W & W Fiberglass Tank | Pampa | All Other Plastics Product Manufacturing |
| Waco Composites Plant | Waco | Unlaminated Plastics Profile Shape Manufacturing |
| Clock Spring | Houston | Unlaminated Plastics Profile Shape Manufacturing |
| Permian Fiberglass Facility | Odessa | Plastics Pipe and Pipe Fitting Manufacturing |
| Reynolds Temple Plant | Temple | All Other Plastics Product Manufacturing |
| Royal Baths Buschong Road Facility | Houston | All Other Plastics Product Manufacturing |
| Stanton Plant | Stanton | Unlaminated Plastics Profile Shape 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
- Houston: 37
- Dallas: 14
- Fort Worth: 11
- Grand Prairie: 8
- El Paso: 8
- Waco: 7
By product code
- All Other Plastics Product Manufacturing (NAICS 326199): 19 of those shown
- Unlaminated Plastics Profile Shape Manufacturing (NAICS 326121): 17 of those shown
- Plastics Pipe and Pipe Fitting Manufacturing (NAICS 326122): 4 of those shown
All plastics and rubber manufacturing in Texas: 354 facilities and Census job counts.