The mission of the Movement Mastery Institute is to support leaders within the social justice field. It seeks to transform its own leadership, share movement and organizational strategies, and teach the necessary skills leaders need to organize their communities. It is a hub for learning and supporting people who want to make change, especially through creating strong relationships and shared understanding across movements and communities. Since June 2014, the Institute has partnered with organizers from across the country to offer a series of trainings in which it seeks to transform traditional organizing models in the US. The Momentum Training offers a model and a community of practice that merges the traditions of mass protests and structured-based organizing.
A 2015 grant from the Cultures of Resistance Network supported a full-time coordinator for the Momentum Training in order to bring the curriculum to more states across the country.