QGIS (previously known as Quantum GIS) is a free and open-source cross-platform geographic information system (GIS) application that allows users to create, edit, visualize, analyze and publish geospatial information. It is commonly used for mapping, spatial analysis, and data management by researchers, government agencies, and other organizations working with geographic data.
Whether you're looking to get your foot in the door, find the right person to talk to, or close the deal — accurate, detailed, trustworthy, and timely information about the organization you're selling to is invaluable.
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