- The Agency ;78
- Montana Bureau of Mines and Geology,70
- Environmental Systems Research Institute (Redlands, Calif.)69
- California Division of Mines and Geology,67
- Maine Geological Survey,66
- Dibblee Geological Foundation,62
- Southern Africa Humanitarian Information Management System (SAHIMS)62
- Ontario Geological Survey,57
- Bureau of Land Management,56
- Central Intelligence Agency,56
- Army Map Service,55
- Snohomish County (WA) Geographic Information System (Snohomish GIS)52
- ML Infomap51
- s.n.,48
- South Africa Surveyor General-Cape Town45
- MassGIS44
- Zhongguo di zhi da xue chu ban she,44
- Boston Redevelopment Authority,42
- The Defense Mapping Agency, Aerospace Center,42
- International Travel Maps,41