In 2006 IPS received support from:

The governments of Belgium, Brazil, Finland, Germany (FES/BMZ, NRW), Italy, the Netherlands and Norway, IFAD, ILO, UNDP, UNEP, UNFPA, ADB, UNOHRLLS, the European Commission, IDRC, SADC, SAT, C.S. Mott Foundation, the Rockefeller Foundation, Action Aid, Oxfam-Novib Netherlands, Oxfam Asia, IBASE, HIVOS, NCDO, CIVICUS/SCVO, Sasakawa Peace Foundation, and COM + / IUCN.

In 2005 IPS received support from:

The governments of Belgium, Brazil, Finland, Germany (FES/BMZ), Italy, the Netherlands and Norway, ILO, Millennium Campaign, UNDP, UNEP, UNESCO, UNFPA, UNIFEM and UN ESCAP, ADB, the European Commission, the Helsinki Process, SEMA-IDRC and SADC, C.S. Mott Foundation, Ford Foundation-IDASA, Japan Foundation and the Rockefeller Foundation, Action Aid, ADC, AWCFS, EADI, HIVOS, Magazine X, NCDO, Oxfam-Novib Netherlands, Open Society, Oxfam East Asia, SID Europe, SPF, and Swisspeace.