There are alot Intelligence agencies only one ISI work both as National and International level, rest work on national platform for investigating and action purpose which are listed below.

CIA (Central Investigation Agency)
FIA (Federal Investigation Agency)
CIA (Certified Investigation Auditors)
SB (Special Branch)
CIA (Crime Investigation Agency known as Crime Branch)
SIU (Special Investigation Unit) in FIA
SIG (Special Investigation Group) in FIA
IB (Intelligence Bearue)

All these are apart from task forces, corps or constabulary forces nither they work directly under armed forces like NAVY. AIR FORCE or ARMY each already has their intelligence units