Creator
- Infor Alameda County 1
- Information Technology Services, Napa County1
- Institut géographique du Mali7
- Institute Geographic National of Niger9
- Institute for Water Resources (U.S.). Navigation Data Center2
- Instituto Brasileiro de Geografia e Estatística265
- Instituto Nacional de Estadística, Geografía e Informática (Mexico)10
- Instituto Nicaragüense de Estudios Territoriales9
- Intergovernmental Oceanographic Commission1
- International Association of Seismology and Physics of the Earth's Interior133
- International Boundary & Water Commission, United States & Mexico.31
- International Boundary Commission1
- International Heat Flow Commission133
- International Livestock Research Institute16
- International Steering Committee for Global Mapping2
- Inyo County (Calif.). Information Services Department46
- Iowa Publishing Co.1
- Iowa State University. Library1
- Ishikawa, Tomonobu1
- Istituto di ecologia applicata (Rome, Italy)1