• International Scale Soaring Association
• The League of Silent Flight

Alabama

• Central Alabama Soaring Society - Birmingham, AL
• North Alabama Silent Flyers (NASF) - Huntsville, AL

Alaska

• Alaska Radio Control Society (ARCS) - Anchorage, AK
• Midnight Sun RC Club - Fairbanks, AK

Arizona

• Central Arizona Soaring League (CASL) - Gilbert, AZ
• Southern Arizona Glider and Electric - Tucson, AZ - Contact: Philip Brister

Arkansas

• Northwest Arkansas Soaring Society (NWASS) - Fayetteville, AK - Contact: TappTapper@aol.com

California

• Central Valley R/C Soaring (CVRC) - Visalia, CA
• Diablo Valley Soaring Society (DVSS) - Pleasanton, CA
• Fresno Soaring Society - Fresno, CA
• Modesto R/C Club - Modesto, CA
• Mustang Ranch Soaring Society (MRSS) - Galt, CA
• North Bay Soaring Society (NBSS) - Novato, CA - Contact: wb6zhd@aol.com
• Pioneer R/C Club - Santa Clara, CA - Contact: Bruce DeVisser
• Redwood Soaring Association - Arcata/Eureka, CA
• Sacramento Valley Soaring Society (SVSS) - Sacramento, CA
• Silverado Soaring Society (SSS) - Napa, CA
• South Bay Soaring Society (SBSS) - San Jose, CA
• Southern California Soaring Clubs
• El Dorado Silent Flyers (EDSF) - Long Beach, CA
• California Slope Racers (CSR)
• Harbor Soaring Society (HSS) - Costa Mesa, CA
• High Desert Dust Devils - Victorville, CA
• Inland Slope Rebels (ISR) - Riverside, CA
• Inland Soaring Society (ISS) - Riverside, CA
• International Scale Soaring Association (ISSA) - Yucaipa, CA
• La Sierra Slope Soarers - Riverside, CA
• Laguna Niguel Slope Soaring Guild - Laguna Niguel, CA
• Muroc Model Masters - Edwards AFB, CA
• Pasadena Soaring Society (PSS) - Pasadena, CA
• San Fernando Valley Silent Flyers (SFVSF) - Woodland Hills, CA
• Santa Clarita Soaring Association (SCSA) - Santa Clarita, CA
• Southern California Thermal Soaring League (SCTSL) - Santa Clarita/San Fernando Valley, CA
• Southern California Electric Flyers - Costa Mesa, CA
• Southern San Joaquin Soaring Society (SSJSS) - Bakersfield, CA
• Silent Electric Flyers of San Diego - San Diego, CA
• Silent Wings Soaring Association (SWSA) - Covina, CA
• Soaring Union of Los Angeles (SULA) - Carson, CA
• Temple Hill Slope Squadron - Orange, CA
• Thousand Oaks Soaring Society (TOSS) - Thousand Oaks, CA
• Torrey Pines Gulls (TPG) - San Diego, CA

Colorado

• Colorado Gliders - Western Colorado
• Love-Air RC - Loveland, CO
• Pike's Peak Soaring Society - Colorado Springs, CO
• Rocky Mountain Soaring Association - Denver/Wheatridge, CO

Connecticut

• Connecticut Silent Flyers - Redding, CT
• Yankee Silent Fliers Association (YSFA) - Central CT

Delaware

• Silent Knights Soaring Society - Newark, DE

• Florida Soaring Society
• Gainesville Area Soaring Society (GASS) - Gainesville, FL
• Jacksonville Area Soaring Society - Jacksonville, FL
• One Wing Low Squadron - North Central Florida
• Orlando Buzzards RC Soaring Society - Orlando, FL
• Radio Control Association of Central Florida (RCACF) - Altamonte Springs, FL
• Sarasota Silent Fliers - Sarasota, FL
• Thermal Riders - Jacksonville, FL

Georgia

• Atlanta R/C Club - Atlanta, GA
• Fayette Flyers - Newnan, GA
• North Atlanta Soaring Association (NASA) - Atlanta, GA

Hawaii

• Aloha State Radio Control Club (ASRCC) - Kailua, HI
• Maui Island Soaring Operation (MISO) - Maui, HI
• Maui Radio Control Modelers (MRCM) -
  Maui, HI

Idaho

• Lewis Clark Radio Control Modelers Club - Lewiston, ID

Illinios

• Columbia RC Club Model Airplane Club - Columbia, IL
• Silent Order of Aeromodeling by Radio (SOAR) - Chicago, IL
• Knights of the Air - Springfield, IL - Contact: Tim McDonough
• Soar Chicago

Indiana

• Academy Of Model Aeronautics (AMA) - Muncie, IN
• Greater Lafayette Sailplane Guild - Lafayette, IN
• League of Flight by Thermals (LOFT) - Ft. Wayne, IN - Contact: Marc Gellart
• League of Silent Flight (LSF) - Ft. Wayne, IN
• Mid Indiana Society of Thermalers (MIST) - Parker City, IN - Contact: Rich LaGrange
• Rural Indiana Soaring Enthusiasts (RISE) - Bloomington, IN - Contact: Joseph Welch (jwelch@thefields.com)

Iowa

• Eastern Iowa Soaring Society (EISS) - Bettendorf, IA

Kansas

• Kansas Soaring Club - Overland Park, KS - Contact: Rex Burton

Kentucky

• Bluegrass Soaring Society (BSS)
• Louisville Area Soaring Society (LASS)

Louisiana

• Crescent City R/C Club (CCR/CC)

Maine

• Downeast Soaring Club - ME

Maryland

• Baltimore Area Soaring Society - Towson/Fallston, MD
• Capital Area Soaring Association (CASA) - Rockville, MD

Massachusettes

• Charles River Radio Controllers (CRRC) - Sudbury/Medfield/Framingham/Cape Cod, MA
• Lazy Loopers R/C Flying Club - Wrentham, MA

Michigan

• Bay County RC Club - Bay City, MI
• EFO - Wayne/Oakland Counties, MI
• Frankenmuth Aeromodelers Flying Club Located in Birch Run Michigan, four miles South of Frankenmuth.
• Greater Detroit Soaring & Hiking Society (GDSHS) - Detroit, MI
• Greater Lansing Area Soaring Society (GLASS) - Lansing, MI
• Michigan International Soaring Society (MISS) - Oakland County, MI
• Michigan Soaring League (MSL)
• RCCD (Radio Control Club of Detroit)
• West Michigan Soaring Society (WMSS) - Grand Rapids, MI
• Whirlwinds of SW Michigan

Minnesota

• Minnesota RC Soaring Society (MRCSS) - Twin Cities Area, MN

Mississippi

• League for Electric Soaring - Picayune, MS

Missouri

• Mississippi Valley Soaring Association (MVSA) - O'Fallon, MO