Based in London, UK, BJS Biotechnologies was spun out from BJS Company in 2004, to focus on thermal cycler technology. BJS Biotechnologies is backed by years of expertise in heat exchange and thermal cycling at its parent company, along with cutting edge expertise from its employees and scientific advisory board.

BJS Company Ltd supplies precision electroplating, precision electroforming, high quality silversmithing and sophisticated assembly of electroforms for industrial application. It has been the leading worldwide supplier of silver heat exchange blocks used in the faster PCR thermal cyclers since the 1990s. Benjamin Lewis founded BJS in 1945, and Richard Lewis, the current Managing Director, is his grandson. The BJS Group includes BJS Company, BJS Gold and BJS Biotechnologies.