Top 18 Injection Molding Manufacturers in Pennsylvania 2026
Last updated
FirmsLedger lists 18 injection molding manufacturers headquartered in Pennsylvania. That ranks 4th among the 46 states with listings, behind Texas (22), Michigan (21) and 1 other state. The largest clusters are in Erie (2), Meadville (2), Reading (2) and York (2), and the other 10 are in 10 more cities. Erie listings include Munot Plastics and Polymer Molding.
By specialty, Pennsylvania has thermoforming (3) and plastic extrusion (2) listings. Capabilities that more than one of them list include custom injection molding (3).
| Company | City | Specialty | Phone | Website |
|---|---|---|---|---|
| M&Q Packaging LLC | Schuylkill Haven | Vacuum bagging films | (570) 385-4991 | mqplastics.com |
| Moldgenix | Trumbauersville | Injection Molding | (215) 538-9613 | moldgenix.com |
| Munot Plastics Inc | Erie | Custom thermoformed plastic packaging | (814) 250-4043 | munotplastics.com |
| York Imperial Plastics Inc | York | Plastic injection molding | (717) 428-3939 | yorkimperial.com |
| Bardot Plastics | Easton | Large-tonnage injection molding (up to 1,760 tons) | (610) 253-0600 | bardotplastics.com |
| Covington Plastic Molding | York | Custom Injection Molding | (717) 624-1111 | covingtonplasticmolding.com |
| EnTech Plastics, Inc. | Corry | Custom Injection Molding | (814) 664-7205 | entechplastics.com |
| PSPM Plastic System | Lebanon | Injection molding | (717) 389-0086 | pspm-inc.com |
| Pasco Tool & Plastics Inc | Meadville | Tooling | (814) 724-7760 | pascotool.com |
| Port Erie Plastics | Harborcreek | Custom plastic injection molding | (814) 899-7602 | porterie.com |
York Imperial Plastics Inc
York, Pennsylvania
Founded in 1985, York Imperial Plastics is a second-generation family-owned and operated plastic injection molding facility in York, Pennsylvania. The company began as a custom molding operation and has since expanded into a full-service provider of tooling transfer, design, and production.
Covington Plastic Molding
York, Pennsylvania
Covington Plastic Molding was founded in 1998 by brothers Scott and James Covington along with their father Steve in New Oxford, Pennsylvania. The family-owned business began with a focus on custom plastic injection molding and has since expanded to a second high-production facility in York, PA (added in 2019) and a warehousing operation (2023).
PSPM Plastic System
Lebanon, Pennsylvania
PSPM Plastic Systems operates from a facility in Lebanon, Pennsylvania. The company does not publish its founding year or ownership details, but its public messaging highlights a long-standing commitment to sustainable manufacturing—recycling process water, using low-energy equipment, and air-conditioning production areas to stabilize conditions and cut overhead—well before environmental concerns became mainstream.
Port Erie Plastics
Harborcreek, Pennsylvania
Port Erie Plastics was founded in 1953 in Harborcreek, Pennsylvania, and remains a family-owned, engineering-driven manufacturer. The company specializes in custom plastic injection molding and structural foam injection molding for large components, with wall thicknesses from 0.200 to 0.500 inches and part lengths up to 7.5 feet.
- Poward Plastics IncReading, Pennsylvania
- Westmoreland Plastics CoLatrobe, Pennsylvania
- NZK Plastics LLCNorth Versailles Township, Pennsylvania
- Remcon PlasticsReading, Pennsylvania
- Polymer Molding Inc.Erie, Pennsylvania
- Plastic Molding ManufacturingLancaster, Pennsylvania
- Augustine Plastics, Inc.Somerset, Pennsylvania
- PRISM Plastics, Inc. - MeadvilleMeadville, Pennsylvania
Frequently asked questions
Which injection molding manufacturers in Pennsylvania list custom injection molding?
3 companies list it: Covington Plastic Molding, Port Erie Plastics and Plastic Molding Manufacturing.
Which certifications do injection molding manufacturers in Pennsylvania list?
ISO 9001: Munot Plastics, York Imperial Plastics and 3 others. HACCP: M&Q Packaging and PSPM Plastic System.