Main Page | See live article | Alphabetical index ESRI (pronounced either EZZ-ree or EE-ESS-AHR-EYE (Preferred by the corporation)) abbreviates the name of Environmental Systems Research Institute, Inc., an organization based in Redlands, California which produces GIS software. External Link http://www.esri.com This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.