Administrative Office of the United States Courts Tags: Government Agency.The Administrative Office of the United States Courts (AO) is the administrative agency of the United States federal court system. It was established in 1939.The AO is the central support entity for the federal judicial branch. thumbnail budget ($) 5.4E7 formation date 1939-08-07 formation year 1939-01-01T00:00:00+02:00 headquarter Washington D.C. jurisdiction Federal judiciary of the United States leader John D. Bates location Washington D.C. number of employees 1200 Learn more... Loading...