Certified Organic by OCIA. Good luck. Estd 1999. Stumptown works with the Ketiara Cooperative in the Sumatran province of Aceh to source this organic Indonesian coffee. If you're looking for a classic and big-bodied brew, look no further. Coffee from Sumatra has an unmistakable flavor profile - it's sweet and chocolatey, sure to please those who love a lush and earthy cup. stumptowncoffee.com. Check out our brew guide videos stumptowncoffee.com. Certified B Corporation. This company meets the highest standards of social and environmental impact.