AMA Plastics, the Largest Custom Injection Molder under One Roof



  • Molding
  • Warehousing
  • Maintenance
  • Clean Room
  • Repair & Engineering

AMA Plastics, now an employee owned company, was founded over 40 years ago.

With its 150,000 square foot manufacturing facility and headquarters conveniently located in Riverside, CA, we continue to fulfill customer needs for single source precision custom injection molding and tooling.

AMA is recognized as a market leader in the plastics industry through having a wide range of core competencies in product and manufacturing technologies. This allows our clients to seize opportunities in new and existing market.

It is our business philosophy to be on the leading edge of technology offering innovative design and diverse manufacturing capabilities, while successfully navigating the demanding and complex time to market cycle.


Through strong leadership and personal commitment, AMA Plastics strives to create and maintain successful long-term business relationships.

“AMA focuses on staying at the forefront of technology changes.”  - CEO, Mark Atchison

Teamwork, Creativity & Commitment to Excellence