Redlands, California—March 18, 2009—Alliant Energy Corporation has signed a three-year enterprise license agreement (ELA) with ESRI that will provide unlimited deployments of current ESRI geographic information system (GIS) software. Alliant is an investor-owned public utility company that provides regulated electric and natural gas service to approximately 1 million electric and 400,000 natural gas customers in the states of Iowa, Wisconsin, and Minnesota. The agreement will simplify GIS software procurement and administration, make budget management more efficient, and facilitate software distribution to staff throughout the utility.

Redlands and Sunnyvale, California—March 17, 2009—ESRI and Trimble (NASDAQ: TRMB) announced that American Water (NYSE: AWK), the largest investor-owned water utility in the United States, has selected the GeoCollector and Trimble GPS Pathfinder ProXH receiver solutions for field data collection. The GeoCollector and ProXH solutions combine geographic information system (GIS) software and Global Positioning System (GPS) hardware that make it easy to collect subfoot position and descriptive information about assets in the field and efficiently transfer the information to a utility's central database.