Country Agency Abbr Role[1] Australia Australian Secret Intelligence Service ASIS Human intelligence Australian Signals Directorate ASD Signal intelligence Australian Security Intelligence Organisation ASIO Security intelligence Australian Geospatial-Intelligence Organisation AGO Geo intelligence Defence Intelligence Organisation DIO Defence intelligence Canada Canadian Forces Intelligence Command CFINTCOM Defence intelligence, Geo Intelligence, Human Intelligence Communications Security Establishment CSE Signal intelligence Canadian Security Intelligence Service CSIS Human intelligence, Security intelligence New Zealand Directorate of Defence Intelligence and Security DDIS Defence intelligence Government Communications Security Bureau GCSB Signal intelligence New Zealand Security Intelligence Service NZSIS Human intelligence United Kingdom Defence Intelligence DI Defence intelligence Government Communications Headquarters GCHQ Signal intelligence Security Service MI5 Security intelligence Secret Intelligence Service MI6, SIS Human intelligence United States Central Intelligence Agency CIA Human intelligence Defense Intelligence Agency DIA Defense intelligence Federal Bureau of Investigation FBI Security intelligence National Geospatial-Intelligence Agency NGA Geo intelligence National Security Agency NSA Signal intelligence