The Northern Plains Indian Art Market (NPIAM) was established in 1988 by American Indian Services, Inc., of Sioux Falls as the Northern Plains Tribal Arts Show (NPTA). Northern Plains Tribal Arts dominated the Sioux Falls art scene from its inception in 1988. American Indian Services produced the juried art show and market from 1988 to 2003. Since 2004, Sinte Gleca University of Rosebud has been the producing organization. 2012 marked the show's 25th year. Directors have included Marilyn Lone Hill and Jack Herman. In the first 25 years of its existence—one of the longest-running Indian art shows in the country—over 800 artists from 7 northern plains states and two Canadian provinces exhibited at NPTA/NPIAM. Writers for national publications, filmmakers, and researchers have all joined the audiences over the years. Northern Plains Indian Art Market continues under the auspices of Sinte Gleca.