Gateway Association, Inc. Share: Associations & Organizations Gateway Association, Inc. Visit Website 1215 Jackson St. Anderson, IN 46016 (765) 649-1900 (765) 649-4992 (fax) gatewayassociationin.wix.com/gateway Hours: 6:00 am - 5:30 pm About Map About The mission of Gateway Association, Inc. is to help young children of all abilities reach their highest potential through education and other support systems. What's Nearby? Distance: 5 10 15 20 25 50 mi.