Green LA Girl points to an interesting list which I will republish here. Largest coffeehouse chains in the United States by number of stores, first quarter 2006. (Source: Datamonitor) Starbucks: 8,000 Caribou Coffee: 322 Tim Horton’s: 292 Coffee Bean & Tea Leaf: 213 Coffee Beanery: 200 Seattle’s Best: 160 (Starbucks’ subsidiary) Peet’s Coffee: 112 Tully’s: 100 Dunn Bros. Coffee: 85 Port City Java: 55 Of the 10 biggest coffee chains in the US, Starbucks (plus Seattle’s Best) owns 8,160 stores out of a total 9,439. That’s 86%.