PEN Manufacturing: Your Trusted Partner in Precision Machining, Sheet Metal, and Welding for High-Performance Industries - Serving Anaheim, Orange County, Los Angeles, and Southern California

About PEN Manufacturing - AS9100/ISO Certified Metal Fabrication in Anaheim, Orange County, Los Angeles, and Southern California

Founded in 1982, PEN Manufacturing has been a trusted partner in supporting local infrastructure and a wide range of industries with precision fabrication services. What began as three Anaheim-based metal fabrication companies has evolved into a unified, full-service manufacturing facility—offering machining, sheet metal, certified welding, finishing, and assembly under one roof. As an AS9100/ISO-certified and ITAR-registered facility, we uphold rigorous quality standards and leverage advanced technologies to meet the demands of modern manufacturing. Our team of degreed mechanical engineers ensures every project—from prototype to large-scale production—meets the highest standards of precision and performance. With an average lead time of just 3.2 weeks and a 98.9% quality rating, PEN Manufacturing continues to deliver results that our clients trust. Our customer base spans from small prototype facilities to Fortune 500 companies, all relying on us for dependable engineering support, responsive service, and superior craftsmanship.