Environmental Systems Research Institute, Inc.

Esri is the global leader in geographic information system (GIS), the technology that since 1969 has helped organizations of all sizes unlock the full potential of data to remain agile, improve services, and meet new challenges. Today, Esri software is deployed in more than 35,000 organizations including the world's largest cities, all fifty U.S. states, most national governments, the US centers for Disease Control and Prevention, the World Health Organization, 127 national health ministries, all 50 U.S. state health departments and 400 hospitals.