The Space Security Index is a research partnership between several academic, governmental, and non-governmental organizations, who together make up the consortium, Spacesecurity.org. Partners include the Institute of Air and Space Law at McGill University, the Secure World Foundation, Project Ploughshares, and The Simons Foundation, in cooperation with the International Security Research and Outreach Programme of Foreign Affairs and International Trade Canada. Cesar Jaramillo of Project Ploughshares is the project manager and primary contact person.

The project is made possible through the generous support of Foreign Affairs and International Trade Canada, the Erin J.C. Arsenault Fund at McGill University, the Secure World Foundation, and The Simons Foundation.