WordNet (r) 3.0 (2006):

CIA
    n 1: an independent agency of the United States government
         responsible for collecting and coordinating intelligence
         and counterintelligence activities abroad in the national
         interest; headed by the Director of Central Intelligence
         under the supervision of the President and National
         Security Council [syn: Central Intelligence Agency,
         CIA]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

CIA
       CAN In Automation (org., CAN), "CiA"