F.M. Callahan & Son, Inc. is a NADCAP and ISO 9001 certified electroplater, serving you since 1910. We are a full service company with 40,000 square foot state-of-the-art facility. We plate precious metals of silver and gold, electroless nickel, sulfamate nickel, zinc, copper, tin, and tin-leads. Our surface treatments include black oxide, pickling, passivating, iridating, and chromating.