Tti International, also known as Tonertime, is a Illinois-based privately held company. Since 1989, the business has evolved into four distinct core businesses that include manufacture of original equipment manufacturer compatible toner cartridges, more than 10 million cores distributed annually, in stock inventory in excess of 3,500 printer parts and maintenance kits, and nationwide printer service and preventative maintenance. The company s primary business is made up of manufacturing Oem compatible toner cartridges and parts for sale to nationwide wholesalers and tier one resellers within the United States. Tti International is headquartered in Chicago.