 In 2005, Butterfield was named one of "Businessweek"'s "Top 50" Leaders in the entrepreneur category.In the same year, he was also named in the TR35, a list collated by MIT in its "MIT Technology Review" publication, as one of the top 35 innovators in the world under the age of 35 years.In 2006, he was named in the "Time 100", "Time" magazine's list of the 100 most influential people in the world, and also appeared on the cover of "Newsweek" magazine.