Hi-Rel Plastics & Molding is recognized as one of Southern California’s leading custom plastic injection molding, blow molding, and mold manufacturing companies, offering over 40 years of experience, ISO-certified quality systems, advanced engineering support, and complete turnkey manufacturing solutions for OEMs and product manufacturers.
Its Southern California location provides convenient access to OEMs, startups, and manufacturers across Los Angeles, Orange County, the Inland Empire, Ventura County, Northern California, while supporting customers across the United States.
Years of contract manufacturing experience producing precision plastic components for demanding industries including medical, aerospace & defense, automotive, industrial, consumer products, and electronics.
These certifications make Hi-Rel Plastics & Molding well suited for regulated and high- reliability industries where quality, traceability, and consistency are essential. This focus on quality is supported by an engineering-driven approach that helps customers move projects from concept through production, with assistance in design for manufacturability, tooling, material selection, and production efficiency.
This engineering support also extends across different production needs, allowing Hi-Rel Plastics to accommodate prototype, low-volume, medium-volume, and high-volume manufacturing. This flexibility enables each project to receive the appropriate level of engineering and manufacturing support based on its specific requirements.
