more than a supplier of your parts
we are your partner for success

Welcome to Ron Witherspoon Inc.

Precision Manufacturing

About Us

Ron Witherspoon Inc. has been at the forefront of precision manufacturing for the high tech, medical, aerospace and defense industries since 1977. RWI is a woman-owned company located in the heart of Silicon Valley. We are ITAR registered and ISO 9001 certified.

RWI consistently delivers quality products on time and on budget, while also taking on, and successfully completing, many jobs that other manufacturers have deemed impossible. Our highly skilled employees are dedicated to exceeding our customer’s expectations and take pride in the parts they produce. Our quality control department excels at all levels of inspection. RWI is much more than a supplier of your parts; we are your partner for success.

Our Team is here to provide you with:

  • Quotes for parts from simple to intricate
  • High quality manufacturing and on-time delivery
  • Secure manufacturing for all of your proprietary projects

What Our Customers Think About Us

RWI has extensive experience in precision manufacturing parts from all types of metals and plastics from the most common steel and aluminum alloys to more exotic materials such as tungsten, titanium and Glidcop. Additionally, we provide a wide selection of manufacturing capabilities ranging from standard vertical and horizontal CNC milling to 5-axis and micro-milling; from sinker and wire EDM to fine wire EDM: from turning to screw machines to micro-turning and mill/turn.