Shoffee.com offers both Keurig® and single-cup capsules compatible with Keurig® brewing systems from Green Mountain Coffee Roasters (GMCR), Marley Coffee, Martinson Coffee, Tim Horton’s, Coffee People, Wolfgang Puck Coffee, Caribou Coffee, Diedrich, Gloria Jean's, Tully's, Bigelow, Twinings, Celestial Seasonings, Lipton, Higgins & Burke only to customers who reside in the United States or Canada. Shoffee is not authorized to sell Dunkin' Donuts Keurig K-Cup Portion Packs. RealCup™ single serve cups, are compatible for use in Keurig® K-Cup® brewers… so if you have one, perfect! You'll at long last be able to enjoy single serve the way it should be. RealCup™ single serve cups brands include Brown Gold®, Higgins & Burke®, Marley Coffee®, Martinson®, Mad Monkey™, Second Cup®, Tim Hortons® and RealCup™ brands have no affiliation with Keurig Green Mountain Inc., Keurig® or K-Cup®. Keurig® and K-Cup® are registered trademarks of Keurig Green Mountain Inc.