At IMS Barter we set out every day to change the way the world does business. To accomplish this we strive to deliver North America's largest independent barter network with the most dedicated trade brokers and most satisfied member trade companies. International Monetary Systems, IMS, is by far the United States' largest full-service trade organization, consisting of tens of thousands of businesses. IMS was founded in 1985 in New Berlin, Wisconsin. Since our inception, we have cultivated our trade network to deliver the most comprehensive and respected trade dollar.