- American Association for Aerosol Research (AAAR)
- American Geophysical Union (AGU)
- American Meteorological Society (AMS)
- Argonne National Laboratory
- Association of American Geographers
- Bureau of Transportation Statistics
- The Center for International Earth Science Information Network (CIESIN)
- Center for the Study of Institutions, Population and Environmental Change (CIPEC)
- ESRI - GIS and Mapping Software
- European Aerosol Assembly
- GIS Data Depot
- Guide to Geography (Thoughtco.com )
- Indiana Business Research Center (IBRC)
- Intergovernmental Panel on Climate Change (IPCC)
- International Geosphere-Biosphere Programme (IGBP)
- International Human Dimensions Programme on Global Environmental Change (link not available)
- International Organization for Migration
- Mapping Resources (Local and Global)
- National Aeronautics and Space Administration (NASA)
- National Center for Earth Resources Observation & Science (EROS)
- National Geographic
- National Science Foundation (NSF)
- National Weather Service (NWS)
- Natural Resources Defense Council
- Natural Resources Institute
- Oak Ridge National Laboratory
- Population Reference Bureau
- Resources for Earth Science and Geography Instruction
- Surface Ocean - Lower Atmosphere Study (SOLAS)
- Surface Transportation Policy Project
- Take a Seat Game
- U.S. Department of Transportation
- U.S. Environmental Protection Agency (EPA)
- U.S. Geological Survey
- Victoria Transport Policy Institute