The American Theatre Organ Society (ATOS) is an international non-profit organization comprised of worldwide volunteer members who are committed to helping preserve and perpetuate the musical theatre pipe organ heritage that began in the early 20th century. Membership is made up of musicians, technicians, hobbyists, educators, and others who enjoy the music of the theatre pipe organ. Founded in 1955, the ATOS consists of regional member-chapters and is led by democratically elected leaders.

Mission Statement

  • To preserve, protect, promote and present a truly American musical invention, the theatre pipe organ and its musical art form, worldwide.
  • To ensure that the few remaining instruments are played wherever possible to provide entertainment to the public as a solo instrument or part of an ensemble, and to accompany silent films.
  • To encourage industry-accepted restoration and maintenance methods and techniques to ensure performance ability for future generations.
  • To assist local chapters and our members by providing coordinated support in education, concert promotion, and marketing to further our mission.

Vision Statement

ATOS expects to participate in growing the number of active theatre organs, expanding public awareness of this art form, and bringing a new generation of theatre organ audiences, supporters, technicians and artists into the fold of a flourishing ATOS. The efforts are expected to facilitate a thriving theatre organ presence worldwide.