Teletech_call_cent_BACOLOD TeleTech Holdings, Inc. (NASDAQ: TTEC), today announced that it has been named to the International Association of Outsourcing Professionals® (IAOP) 2015 Global Outsourcing 100® List for the seventh year in a row. The Global Outsourcing 100, now in its tenth year, recognizes the world’s best outsourcing service providers.  Read more