Founded in 1865, AASA is one of the most long-standing professional education leadership organizations in the nation. Its more than 15,000 members, located across North America and in other parts of the world, include top systems-wide school leaders such as superintendents, other central office administrators, principals, and board members, as well as professors and others who prepare educators for leadership positions.

The AFT is a 950,000-member union of public and professional employees, including public and private school teachers, paraprofessionals and school-related personnel (PSRPs), higher education faculty and professionals, employees of state and local governments, nurses and health professionals. The union operates at the local, state, and national level to represent its members, strengthen public education and its members' professions, and address issues that affect all children and working Americans.