TSYS Started in 1959 as a small division of Columbus Bank and Trust in Columbus, GA.Total Systems (TSYS) became a separately traded company in 1983
Today, TSYS is a subsidiary of Synovus Financial Corporation Serves companies on three continents Maintains operations in the US, Canada, Mexico, Japan, United Kingdom, and Italy. Over 6,000 employees. About 39% of US credit card transactions were processed by TSYS - I think this %age is reduced now. Many clients has opted for in-sourcing.
Disclaimer: I'm not a spoke-person of TSYS, once I was on one of the client-sites for TSYS and this is from memory.