W.R. Grace and Company is an American chemical conglomerate based in Columbia, Maryland. Grace is divided into three business segments—Grace Catalysts Technologies, Grace Materials Technologies, and Grace Construction Products. Grace is a specialty chemicals and materials company. It has more than 6,700 employees in nearly 40 countries, and annual sales of more than US $ 2.5 billion. The company\'s stock, listed in 1953, trades on the New York Stock Exchange.