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