- Accountability aspects
- Covert Action Division
- Joint Intelligence X
- coordinates all the other departments in the ISI. Intelligence and information gathered from the other departments are sent to JIX which prepares and processes the information and from which prepares reports which are presented.
- Joint Intelligence Bureau
- Joint Counterintelligence Bureau
- Joint Intelligence North
- Joint Intelligence Miscellaneous
- responsible for espionage, including offensive intelligence operations, in other countries.
- Joint Signal Intelligence Bureau
- Joint Intelligence Technical
- deals with development of science and technology to advance the Pakistan intelligence gathering. The directorate is charged to take steps against the electronic warfare attacks in Pakistan. Without any exception, officers from this divisions are reported to be engineer officers and military scientists who deal with the military promotion of science and technology. In addition, there are also separate explosives and a chemical and biological warfare sections.
- SS Directorate
- which monitors the terrorist group activities that operates in Pakistan against the state of Pakistan. The SS Directorate is comparable to that of Central Intelligence Agency (CIA) National Clandestine Service (NCS), and responsible for the covert political action and paramilitary special operations.
- Political Internal Division
- Monitored the financial funding of the right-wing political science sphere against the left-wing political science circles. This department was involved in providing funds to the anti-left wing forces during the general elections of 1965, 1977, 1985, 1988, and 1990. The department is now "inactive" since March 2012 with the new director taking the operational charge of the ISI.
Director Generals of the ISI
- 1978–1980: LGen Muhammad Riaz
- 1980 – March 1987: LGen Akhtar Abdur Rahman
- March 1987 – May 1989: LGen Hameed Gul
- May 1989 – August 1990: LGen (retd) Shamsur Rahman Kallu
- August 1990 – March 1992: LGen Asad Durrani
- March 1992 – May 1993: LGen Javed Nasir
- May 1993 – 1995: LGen Javed Ashraf Qazi
- 1995 – October 1998: LGen (then Maj Gen) Naseem Rana
- October 1998 – October 1999: LGen Ziauddin Butt
- October 1999 – October 2001: LGen Mahmud Ahmed
- October 2001 – October 2004: LGen Ehsan ul Haq
- October 2004 – October 2007: LGen Ashfaq Parvez Kayani
- October 2007 – October 2008: LGen Nadeem Taj
- October 2008 – 19 March 2012: LGen Ahmad Shuja Pasha
Recruitment and training
- Collection of information and extraction of intelligence from information
- ISI obtains information critical to Pakistan's strategic interests. Both overt and covert means are adopted.
- Classification of intelligence
- Data is sifted through, classified as appropriate, and filed with the assistance of the computer network in ISI's headquarters in Islamabad.
- Aggressive intelligence
- ISI has a dedicated section which spies against enemy's intelligence collection.
- Diplomatic missions provide an ideal cover and ISI centres in a target country are generally located on the embassy premises.
- International media centres can easily absorb ISI operatives and provide freedom of movement.
- Collaboration with other agencies
- Third Country Technique