- The Association of California School Administrators (ASCA) was established in 1971. ACSA is the largest umbrella organization for school leaders in the nation, serving more than 14,500 school leaders.
- The Associated Administrators of Los Angeles (AALA) was formed in 1981 when elementary, secondary, supervisory and adult administrators joined forces to form a single association to represent all middle managers in the Los Angeles Unified School District. During the first ten years membership in AALA was voluntary. In 1991 AALA became the exclusive bargaining unit representing all certificated middle managers except confidential and personal service contract senior staff.
- ACSA is a statewide advocacy organization; AALA is a collective bargaining unit in LAUSD. The two are not affiliated, though many LAUSD administrators are members of both.