About Aflac In the United States, Aflac is the leading provider of voluntary insurance at the work site. Through its trailblazing One Day PaySM initiative, Aflac U.S. can receive process, approve and disburse payment for eligible claims in one business day. In Japan, Aflac is a leading provider of medical and cancer insurance and insures 1 in 4 households. Aflac individual and group insurance products help provide protection to more than 50 million people worldwide. For nine consecutive years, Aflac has been recognized by Ethisphere magazine as one of the World's Most Ethical Companies. In 2015, Fortune magazine recognized Aflac as one of the 100 Best Companies to Work For in America for the 17th consecutive year. Also, in 2015, Fortune magazine included Aflac on its list of Most Admired Companies for the 14th time, ranking the company No. 1 in innovation for the insurance, life and health category. Aflac Incorporated is a Fortune 500 company listed on the New York Stock Exchange under the symbol AFL.