About Us

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Crown Manufacturing Company, Inc., located in the Northern California San Francisco Bay Area, offers a full range of plastic injection molding services to our customers; extending from the initial project cost proposal through to the timely shipment of the completed order. Our skilled and experienced mold makers utilize our in-house tool and mold-making capabilities, along with state of the art hardware and software, to ensure the highest quality product.

We have the knowledge, experience, and facilities to manage every stage of your custom plastic injection-molding project. We work closely with you through all phases of the mold-making process to ensure that all issues are properly addressed—including part function and design, materials selection, mold layout and design, and cost analysis factors.

Crown Manufacturing Co, Inc specializes in the following:

  • Short to Moderate Production Runs
  • Just-In-Time Delivery
  • Ultrasonic Welding & Bonding
  • Assembly, Pad Printing & Packaging
  • In-House Tool Room
  • CNC. EDM & Support Equipment
  • Drilling, Tapping and Insertion
  • Circuit Board Assembly
  • Shielding & Painting
  • Quality Assurance
  • Customer Focused


The mission of Crown Mfg. Co., Inc. is to formulate effective solutions to meet the needs of our customers through intelligent mold design, efficient manufacturing processes, attention to detail and quality, and devotion to process improvement.


Our values of dependability, reliability, concentration on service, and continuous improvement are evident in the consistent quality of the plastic injection molded parts we produce.  They are evident in the long-term relationships we have built with our customers and they are evident in the pride in workmanship of each of us at Crown Mfg. Co., Inc.

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