The National Alliance on Mental Illness is the largest grass roots organization in the country providing support, education and advocacy for those affected by mental illness. NAMI began in 1979 and their local affiliate in 1991. Initially services were only offered in Clark County. In 2015 they re-organized and now offer NAMI support groups and educational programs in Greene and Madison Counties as well. In addition, they also advocate for those affected by mental illness at the local, state, and national levels.