The Space Sustainability Rating (SSR) is driven by our desire to work collaboratively with all space actors to help reducing the risk of space debris, on-orbit collisions, and unsustainable space operations.

The SSR is proud to count on the early and steady support of four founding members, who provide active financial support and expertise to help advance the SSR forward and promote the rating globally.

Association members

Organizations with a strong interest in the space sustainability and in the rating can become a member of the SSR. Association members are key supporters of the SSR, providing their expertise and know-how to help advance our mission and shared values.

Our mission is ambitious. We are inclusive and international by nature, and would like to call on all space actors to join us and embark upon our common journey to drive sustainability in outer space. Learn more about opportunities for involvement HERE.