- Human Rights Watch Inc
- Hydrocephalus And Neuroscience Institute Inc
- IDE - International Development Enterprises
- iEARN - International Education and Resource Network - USA
- Impact Bay Area
- ImportantGifts, Inc.
- In A Perfect World Foundation
- In Defense of Animals
- In Defense Of Animals-Africa / Sanaga-Yong Chimpanzee Rescue Center
- Independent Television Service
- Institute for Local Self-Reliance
- International Aids Vaccine Initiative Inc
- International Bridges to Justice
- International Campaign to Ban Landmines
- International Child Abuse Network Inc
- International Crisis Group
- International HIV/AIDS Alliance USA
- International Humanity Foundation
- International Interns Inc
- International Medical Corps
- International Mountain Explorers Connection
- International Physicians For The Prevention Of Nuclear War
- International Relief Teams
- International Trachoma Initiative
- International Water Management Institute
- Internetbar Org Inc
- Internews Network