
Jeremy Madvin is the founder and current CEO of Zeta Technology Group, a manufacturer and FDA registered developer of health-related products, including the Kenko Precision Set, Kenko DUK tape, KenkoGround® and many other Nikken products. As described by B. Bertucci, "The Kenko Precision sphere is small and mighty, I found it very effective, portable and an amazing addition to my personal tool box".