BJS Company Ltd is BJS Biotechnologies’ parent company. It supplies precision electroforming, electroplating, high quality silversmithing and sophisticated assembly of electroforms for industrial applications. Since the early 1990s, BJS Company has been the world’s leading supplier of the silver heat exchange blocks used in the faster PCR thermal cyclers. The blocks are electro-formed using a process created by the company’s current Managing Director Richard Lewis. Richard is the grandson of Benjamin Lewis who founded BJS Company in 1945.