Agate Publishing is an independent small press book publisher based in Evanston, Illinois. The company, incorporated in 2002 with its first book published in 2003, was founded by current president Doug Seibold. At its inception, Agate was synonymous with its Bolden imprint, which published exclusively African-American literature, an interest of Seibold's and a product of his time working as executive editor for the defunct African-American publisher Noble Press.