About Us

Spring Manufacturing Company

Peninsula Spring Corporation

Who We Are

Established in 1976, Peninsula Spring is a proud American spring manufacturer. We supply custom springs, wire forms and precision sheet metal stampings to the defense, aerospace, medical and computer industries. We are no fly-by-night spring manufacturer. We are a well-established, experienced corporation who has been providing quality parts and engineering services for over 35 years!

Business Policy Statement

By exceeding our customer’s expectations in quality, delivery and satisfaction through continuous improvement, our mission is to extend beyond our well-established history of manufacturing excellence and become a predominant supplier of precision metal products while advancing a uniquely exceptional customer experience.


Peninsula Spring is located in Gilroy, California. With a 10,000 square foot facility located near two major California highways, we have the ideal location for serving the Silicon Valley, California and the rest of the United States. We are also a custom spring manufacturer that ships internationally.

Shipping and Delivery

Getting a product to market as quickly as possible is essential in today’s economy. Peninsula Spring does not fall short here. Quite often, we can have parts in your hands by the time our competitors provide you with their quote! We have structured our entire business for speed and dependability. We are equipped with delivery trucks that service the Silicon Valley and most of the San Francisco Bay Area. This drastically improves delivery times and cuts shipping costs, which in turn, is passed to our customers!


Peninsula Spring has dozens of machines that are capable of coiling, grinding, cutting, punching and bending both small and large material to almost any size, shape and angle desired. From spring prototypes toproduction quantities, we are able to fabricate parts both quickly and cost effectively.


Peninsula Spring specializes in prototype and short-run orders. There is no job too small for us. However, we are also well equipped to handle large production orders. No matter the quantity, we provide the same service and quality for each order.

Peninsula Spring quality wire forms and metal stampings

Quick Turnaround on Prototypes is Our Specialty!
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