| 1 | National Security Agency | United States | Signals Intelligence, Cybersecurity |
| 2 | Central Intelligence Agency | United States | Human Intelligence, Covert Operations |
| 3 | Federal Bureau of Investigation | United States | Counterterrorism, Counterintelligence |
| 4 | Defense Intelligence Agency | United States | Military Intelligence, Defense Analysis |
| 5 | Homeland Security | United States | Border Security, Immigration Enforcement |
| 6 | MI5 | United Kingdom | Domestic Counter-Intelligence, Security |
| 7 | MI6 | United Kingdom | Foreign Intelligence, Covert Operations |
| 8 | GCHQ | United Kingdom | Signals Intelligence, Cybersecurity |
| 9 | Mossad | Israel | Foreign Intelligence, Covert Operations |
| 10 | Shin Bet | Israel | Domestic Security, Counterterrorism |
| 11 | FSB | Russia | Domestic Security, Counterintelligence |
| 12 | GRU | Russia | Military Intelligence, Covert Operations |
| 13 | BND | Germany | Foreign Intelligence, Economic Intelligence |
| 14 | DGSE | France | Foreign Intelligence, Covert Operations |
| 15 | ASIS | Australia | Foreign Intelligence, Covert Operations |
| 16 | CSIS | Canada | Foreign Intelligence, Security Intelligence |
| 17 | RAW | India | Foreign Intelligence, Covert Operations |
| 18 | ISI | Pakistan | Military Intelligence, Covert Operations |
| 19 | DGFI | Bangladesh | Military Intelligence, Counterintelligence |
| 20 | SAVAK | Iran | Domestic Security, Counterintelligence |