OfficeMax is an American office supplies retailer founded in 1988. It is now a subsidiary of Office Depot, Inc. , which is headquartered in Boca Raton, Florida. As of December 2012, OfficeMax operated 941 stores in 47 states, Puerto Rico, the U. S. Virgin Islands and Mexico. In 2012, net sales were $6. 9 billion, down from $8. 3 billion in 2008.