Grant-Hadley Enterprises was the first of three names used by an American small press publishing house specializing in science fiction titles. The company was founded in 1945 by Donald M. Grant and Thomas G. Hadley and published one title as Grant-Hadley Enterprises. Kenneth J. Krueger joined the company in 1946 and the name was changed to The Buffalo Book Company. Later in 1946, Hadley continued the company on his own as The Hadley Publishing Co.