This company was founded in 1984 as Alias Stage by seven members of the graduating class of Trinity Rep Conservatory. Its first home was an abandoned mill in the Olneyville neighborhood. When a fire forced the theater from that space in 1989, it moved into a second former mill; four years later, Alias relocated to the Jewelry District in downtown Providence.

In 1998, the company accepted a gift from the Feinstein Family Trust and was renamed The Sandra Feinstein-Gamm Theatre in honor of the late actress and arts supporter. When the company began to outgrow its 75-seat venue, it proposed to the City of Pawtucket that the abandoned Pawtucket National Guard Armory be renovated and used as a center for the arts, with the Gamm as its primary tenant. That proposal was accepted, and the theater currently has a temporary home in a specially constructed annex to the armory while renovation of the main building continues.  The Gamm’s representative 2010-2011 season includes Ibsen’s A Doll’s House, David Mamet’s Glengarry Glen Ross, Theresa Rebeck’s Mauritius, Christopher Durang’s Why Torture is Wrong, and the People Who Love Them, and the U.S. premiere of Howard Brenton’s Paul.