International Wholesale Supply, Inc. was founded in 1987, located in Rancho Cucamonga, California. In July of 2011, IWS was a ... cquired by Matthews Group of Companies and incorporated as International Wholesale Supply. The IWS expertise in distribution into the Truck Stop, Convenience Store, and Grocery markets is a great addition to the Matthews Group of Companies. Matthews’ rich heritage began as a retailer in St. Louis in 1889. Over the past 130 years, the original Matthews Company has diversified into three distinct, affiliated companies; Matthews Book Company, McCoy Health Science Supply, and IWS (International Wholesale Supply). As both a distributor and a manufacturer’s representative, IWS maintains the highest standards of customer service and product satisfaction. IWS carefully considers each manufacturer and represents only those who share the same ideals and desire to put their customers’ needs first. read more