Estamp Mammoth Dreyer's Gorilla Treestands Elephant NewSun Fallen Heroes Eastman Outfitters First Street Headsprout Perdue Currenex Estamp Estamp is an electronic postage company. The challenge was to create a mark that felt like new technology, but had a comfortable association with what we know. The perforated stamp edge, and rectangular shape imply that this is postage, and the "e" tells us that this stamp is different.