Who We Are
Precise Manufacturing, Delivering Quality
At John Evans’ Sons LLC, we don’t just manufacture springs—we engineer solutions.
As America’s Oldest Springmaker, we’ve spent over 175 years redefining precision, performance, and reliability. Our expertise spans a diverse range of industries, from medical device and aerospace/defense to robotics and point of purchase. We ensure that mission-critical applications function flawlessly and set the standard for world-class precision spring products.
Built on Quality & Trust
Since 1850, QUALITY has been embedded in every step of our processes.
Kaman Aerospace, a supplier to the global aerospace industry, presented us multiple awards for outstanding quality and on-time delivery by a component vendor to a major defense contractor.
Over the past two decades, our commitment to excellence has garnered numerous quality performance awards from major corporations, including I.B.M., Siemens Energy, Burle Industries, General Electric, Day & Zimmermann, and Branson Ultrasonics.
A Legacy of Innovation
Headquartered in Lansdale, Pennsylvania, our team specializes in manufacturing custom precision springs, metal stampings, and mechanical assemblies. Whether enhancing medical devices or reinforcing aerospace technology, we partner with our clients to drive innovation, optimize performance, and exceed expectations.
A Global Powerhouse – The Lesjöfors Group
John Evans’ Sons LLC is part of the Lesjöfors Group, a global leader in technical spring solutions, formed/stamped parts, gas springs, and metal conveyor belts. With a legacy dating back to 1675, Lesjöfors operates in over 50 manufacturing and sales companies, providing cutting-edge engineering and unparalleled customer support. As a subsidiary of Beijer Alma, listed on the Stockholm Stock Exchange, we are backed by a global network dedicated to pushing the boundaries of spring technology.
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, and
- Continually improving
Our 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, John Evans’ Sons LLC is here to help. Let’s build the future—one precision component at a time.