Founded in Schramberg in 1888 by watch-spring maker Hugo Kern, KERN LIEBERS has built its identity around precision manufacturing and dependable function. Today, the company employs 5,850 people at 35 locations worldwide, developing technical springs and precision stamped parts for demanding industrial applications. Its long history includes producing more than four billion seat-belt springs.
IATF 16949
ISO 14001
ISO 50001
United Nations Global Compact
Compliance program
Carbon Disclosure Project
Compliance program
EcoVadis
Compliance program
LesjöforsWith an industrial heritage stretching back more than 170 years, Lesjöfors designs and manufactures precision springs, pressings and related components for applications ranging from heavy-duty equipment to medical and automotive systems. Its global production network combines local support with large-scale capacity, including a particularly extensive automotive aftermarket range of OE-quality replacement coil springs. Lesjöfors backs its manufacturing with traceability, continuous improvement and internationally recognised management systems including ISO 9001, ISO 14001 and ISO 13485:2016.PITTSTON, PA
Key Bellevilles IncFamily-run since founder Robert J. Key established it in 1967, Key Bellevilles Inc. has made Leechburg, Pennsylvania, its home for more than five decades. The company is known for concentrating exclusively on Belleville disc springs, which it manufactures in the United States for customers around the world. Its 88,000-square-foot plant sits on a 200-acre site, and its quality system complies with ISO 9001 standards.LEECHBURG, PA
Grieshaber PrecisionFounded in 1903 as a Black Forest craft business, family-owned Grieshaber Precision makes high-precision turned parts for demanding products in sectors such as automotive, sensor and medical technology. From its Schiltach base, the company now employs about 300 people and produces more than 120 million precision parts across a production area exceeding 10,000 square metres. Its combination of in-house tool and fixture construction, prototype capacity and scalable production lets Grieshaber support customers from initial development through large-scale manufacturing.CINCINNATI, OH