Author
- Gap Analysis Program (U.S.)60
- Map and Geospatial Information Center, Lewis Library, Princeton University59
- Aucott, Paula53
- Bennett, Chris53
- Kelso, Nathaniel Vaughn53
- Patterson, Tom53
- Southall, Humphrey53
- University of Portsmouth53
- United States. Department of Housing and Urban Development52
- Map Maker Ltd.50
- US Census Bureau, Geography Division50
- University of Michigan. China Data Center48
- Beijing Hua tong ren shi chang xin xi you xian ze ren gong si47
- International Steering Committee for Global Mapping44
- Monterey County (Calif.)41
- Great Britain Historical Geographical Information System38
- LeadDog Consulting, LLC37
- Bay Area Open Space Council32
- GfK GeoMarketing GmbH32
- ML Infomap Pvt. Ltd.32