Local Chapters of ATOS are the organizations that really do all the work of preserving and presenting Theatre Organ to the public. Please lookup the Chapters in your area and get involved!

Chapter State/Prov. Citysort ascending
SUSQUEHANNA VALLEY Pennsylvania York
Dickinson Theatre Organ Society Delaware Wilmington
COLUMBIA RIVER Washington Vancouver
SOONER STATE Oklahoma Tulsa
NORTHERN MICHIGAN Michigan Traverse City
TOLEDO AREA Ohio Toledo
Saint Louis Missouri St. Loius
CENTRAL ILLINOIS Illinois Springfield
SPOKANE FIRST NAZARENE Washington Spokane
PUGET SOUND Washington Seattle
HUDSON MOHAWK New York Schenectady
MANASOTA Florida Sarasota
SANTA BARBARA California Santa Barbara
Nor-Cal California San Francisco
San Diego California San Diego
Island Empire California San Bernadino
GREAT SALT LAKE Utah Salt Lake City
GREAT LAKES BAY Michigan Saginaw
SIERRA California Sacramento
Rochester Theatre Organ Society (affiliate) New York Rochester
OLD DOMINION Virginia Richmond
OREGON Oregon Portland
Pittsburgh Area Theatre Organ Society Pennsylvania Pittsburgh
Valley of the Sun Arizona Phoenix
SOUTHEAST TEXAS Texas Orange
RIVER CITY Nebraska Omaha
KINGSTON Canada Odessa
NEW YORK New York New York City
LAND O' LAKES Minnesota Minneapolis / St. Paul
DAIRYLAND Wisconsin Milwaukee
Los Angeles California Los Angeles
LONDON and SOUTH of LONDON England, General London
BLUEGRASS Kentucky Lexington
NEVADA DESERT LIGHTS Nevada Las Vegas
Lansing Theatre Organ, Inc. (affiliate) Michigan Lansing
KANSAS CITY Missouri Kansas City
JOLIET Illinois Joliet
FIRST COAST Florida Jacksonville
CENTRAL INDIANA Indiana Indianapolis
Houston Theatre Organ Society Texas Houston
SEQUOIA California Fresno
RED RIVER North Dakota Fargo
MOTOR CITY Michigan Detroit
Detroit Theatre Organ Society (affiliate) Michigan Detroit
ROCKY MOUNTAIN Colorado Denver
NORTH TEXAS Texas Dallas / Ft. Worth
PIKES PEAK Colorado Colorado Springs
WESTERN RESERVE Ohio Cleveland
OHIO VALLEY Ohio Cincinnati
CHICAGO AREA Illinois Chicago
CHICAGOLAND Illinois Chicago
METROLINA North Carolina Charlotte
ROME NEW YORK New York Central New York
PIEDMONT North Carolina Burlington
Alabama Alabama Birmingham
BINGHAMTON THEATER ORGAN SOCIETY, INC. New York Binghamton
JESSE CRAWFORD Montana Billings
ATLANTA Georgia Atlanta
Mount Shasta California
Orange County California
CONNECTICUT VALLEY Connecticut
CENTRAL FLORIDA Florida
SOUTH FLORIDA Florida
HILO Hawaii
CEDAR RAPIDS Iowa
PINE TREE Maine
EASTERN MASSACHUSETTS Massachusetts
CENTRAL MINNESOTA OTTER TAIL Minnesota
MAGNOLIA Mississippi
GARDEN STATE New Jersey
SOUTHERN JERSEY New Jersey
CUMBERLAND VALLEY Pennsylvania
DELAWARE VALLEY Pennsylvania
LA CROSSE SCENIC BLUFFS Wisconsin
PACKERLAND Wisconsin
Australia Felix Australia-Wide
FREE STATE Maryland
Cinema Organ Society (affiliate) United Kingdom