The World's #1 Ball Chain Manufacturer Ball Chain Manufacturing Co., Inc. (BCM) is the world’s largest manufacturer of ball chain and related accessories. Founded in 1938 by Frank Taubner and his son, Val, in the garage behind their home in the Bronx, BCM has grown to employ more than 95 people. Under current President Bill and his brothers, Val and Jim, BCM manufactures the industry’s highest quality ball chain and distributes products globally. Our ball chain is a part of everyday life and is featured in items such as window/roller shades, light fixtures, plumbing devices, key chains and chain necklaces.