Blue Marble Geographics: Expert Geospatial Software and Services Blue Marble’s geospatial data conversion technology is used worldwide by thousands of GIS analysts and Developers by thousands of GIS analysts at software, oil and gas, civil engineering, surveying, and technology companies, enterprise GIS groups, universities, government and military organizations. Our software solutions are available as desktop applications or developer tool kits. GeoCalc, the world’s leading coordinate system library, is the basis of everything we do. Our focus on coordinate transformation has evolved into a reputation as experts in geodetics with particular focus on Oil and Gas exploration geospatial challenges. We are also the developer of Global Mapper and Global Mapper SDK. This tool originally developed for the USGS is used by hundreds of thousands of GIS professionals around the world. It is a low cost, user friendly, powerful GIS with support for hundreds of file formats, advanced analysis tools, attribute and geometry manipulation and much more.