Adams Kisomose:  August 25, 2024 The Ethical Coffee Journey: From Farmers to Cup. The biggest coffee seller in the United States is Starbucks, with an estimated sales of around 31.6 billion U.S. dollars. At the same time, New England-based Dunkin Donuts comes number two, with 11.9 billion in sales. The largest producer of coffee is … Continue reading Coffee Retailer