Yahoo Finance -- Today Dunkin' Brands officially opens its 15,000th store worldwide in Raleigh, N.C., and to honor this important milestone the company is making this an especially sweet day for customers around the globe. Dunkin' Brands, the parent company of two of the world's most recognized and loved brands -- Dunkin' Donuts and Baskin-Robbins -- is thanking customers for more than 60 years of support with special celebrations in select cities throughout the world.