GIS Polygon Project, Milwaukee, WIFrom national defense contracts, to intricate utility mapping, GRW is experienced in all aspects of geographic information services. Our award-winning staff includes certified GIS professionals, analysts and programmers who can assist with all of your GIS needs. Our services include GIS design, implementation, data conversion, programming, training, and ongoing maintenance. We specialize in providing affordable and accurate ways to instantly retrieve and analyze your data, improving the way you work, and live.