Digital Marketing Home / Email Marketing / Iowa, USA / Bettendorf / 52722 / GAH, Inc. GAH, Inc. - Email Marketing services, Iowa, USA GAH, Inc.gah.com - Email Marketing services, Iowa. GAH, Inc., 1116 Coffelt Ave, Bettendorf, IA 52722, 52722, USA(563) 209-1939http://www.gah.com Digital Marketing Services offered in Iowa: Affiliate Marketing, Mobile Marketing, Pay Per Click advertising PPC, Instant Messaging Marketing