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Supply Chain Manufacturing Success

Custom Metal Fabrication, CNC Machining, & Welding

Southern California Metal Fabricator Since 1982

For over 35 years, Pen Manufacturing has been a leading metal fabricator serving Southern California offering services such as custom metal fabrication, CNC and manual machining services, and more from our machine shop in Anaheim, CA. Our team at Pen Manufacturing consists of an eclectic group of work-hardened problem solvers of diverse cultural backgrounds and tons of real-world, get your hands dirty, don’t stop until the job is done experience. We all hail from the top of our industries and come together to solve even the toughest of manufacturing challenges. We are a close-knit band of skilled thinkers and craftsmen that strive daily to meet or exceed our customer’s expectations.

From steel parts that measure a bit larger than a cubic inch to assemblies that are over ten tons, Pen Manufacturing's metal machine shop has a dedicated team, the manufacturing equipment, and the know-how to take your metal project from design to completion.

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Welcome to Pen Manufacturing!

Metal Fabrication Services

At Pen Manufacturing, we custom fabricate and machine your project to your specific requirements. Some of the metal fabrication services we offer in Southern California area include:


One of Pen Manufacturing's core strengths as a metal fabricator is the skilled team that handles all aspects of your project, from the initial contact to the final inspection. Additional in-house services include glass beading, electrical work (such as panels, machine controls, conduit), plumbing (stainless steel, PVC, copper, hydraulic), some painting and delivery. Pen Manufacturing provides these comprehensive services to customers that are looking for a complete "turn-key" manufacturing solution.

Located in Anaheim, California, Pen Manufacturing is your one-stop metal fabricator for any precision CNC machining, MIG welding, and TIG welding in the Orange County area. Contact the Pen Manufacturing team today for help in solving your unique manufacturing challenges.

Metal Fabrication Service Areas

Pen Manufacturing combines experienced craftsmen with competitive pricing to make your decision for Southern California metal fabrication, welding, and CNC service provider as easy as possible. Below is a list of locals within our service area:

  • Fullerton
  • Santa Ana
  • Irvine
  • Yorba Linda
  • Newport Beach
  • Anaheim
  • Brea
  • Orange
  • San Diego
  • Los Angeles
  • Long Beach
  • And Others
  • Los Angeles County
  • Orange County
  • San Bernardino County
  • Riverside County
  • San Diego County