Leading Suppliers Globally for Spring Design

Here are some of the leading global suppliers of spring design:

Lee Spring: Founded in 1918, Lee Spring is a prominent supplier of stock and custom springs for various industries worldwide.
Associated Spring: A division of Barnes Group Inc., Associated Spring offers a wide range of precision-engineered springs and precision metal components.
Smalley Steel Ring Company: Known for their retaining rings and wave springs, Smalley is a respected supplier of innovative spring solutions.
JST Corporation: Specializing in spring technology, JST Corporation provides high-quality springs for automotive, industrial, and consumer markets.
Mubea: Mubea is a well-known supplier of automotive suspension coil springs and other precision-engineered spring solutions.

Please note that this list is not exhaustive, but these companies are recognized for their expertise and quality in the field of spring design.