The University of Notre Dame's Alliance for Catholic Education (ACE) celebrates 25 years of service to Catholic schools in the United States. ACE began as an effort to provide teachers to under-resourced schools, soon after expanding to include Principal preparation. As the landscape and needs of Catholic education have changed, ACE has expanded its reach to include a wide range of formation programmes designed to strengthen and sustain Catholic education. Programmes have a notable impact on individual participants, schools, and on Catholic education more broadly within the United States.