Evertec, Inc.
A Puerto Rico-based payment processor that helps merchants accept credit and debit cards, runs the ATH debit network used across the island, and offers core banking and cash services to banks. It began in the late 1980s as an internal division of Banco Popular de Puerto Rico before spinning off as its own publicly traded company in 2013. The ATH network takes its name from the Spanish phrase "a toda hora," meaning "at all times."