John Evans' Sons Company Profile

At John Evans’ Sons LLC, we don’t just manufacture springs—we engineer solutions.

We are international leaders in spring design & production with proven expertise in precision, utilizing advanced design & manufacturing technology. Founded in 1850, John Evans’ proudly stands as America’s First Springmaker.

We offer several counterbalance options to assist/enhance articulated instruments & assemblies. Many medical equipment designers utilize constant force springs, constant force spring motors, spiral torsion springs, power springs, and more. We are proud to manufacture custom medical springs and components that meet the highest standards for medical device manufacturers.

Our custom design and precision manufacturing capability are supported by a complete machine shop staffed by a professional crew of toolmakers who utilize Dessault Systemes Solid Works for design, and Charmilles EDMs for tool and die production. This allows us to build, maintain, and repair all tools utilized in our production areas. We design and build many of our own high speed, automated, spring manufacturing machines. This “on-site” capability further reduces cost and lead time for our customers.

Commitment to Excellence:
We are dedicated to fully understanding and exceeding customer expectations through teamwork and the ongoing pursuit of technical and manufacturing excellence. 

We are committed to:

Satisfying the requirements of,Maintaining the effectiveness of, andContinually improvingOur quality management system is based on the principles of ISO 9001:2015, AS9100, and ISO 13485:2016.

Ready to Engineer the Future?Whether you need custom spring solutions or a reliable manufacturing partner, we are here to help. Let’s build the future—one precision component at a time.

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