Through its members, the Circle follows the work of a number of other organizations including:

The New Hampshire Institute of Politics [Saint Anselm College, Manchester, NH, USA]

The  Forum on Religion and Ecology [Harvard University, Cambridge, MA, USA]

Associates for International Research and Development (AIRD) [Cambridge, MA, USA]

Kyoto Energy-Environmental Research Association [Japan]

ATD Fourth World [Paris, France]

World Commission on Global Consciousness and Spirituality

Nuclear Age Peace Foundation [Santa Barbara, California & Washington, DC, USA]

Earth Charter