Servicio de Inteligencia del Ejército (Army Intelligence Service, SIE) is the Argentine Army's intelligence agency. It is a division of J-2 and reports to the Army's Jefatura II (the General Staff's intelligence service).
The Service is composite of 11 Intelligence Companies, 30 Independent Intelligence Platoons, 1 Intelligence Support Group, 1 Military Intelligence Collector Centre, 3 Division Intelligence Collection Centre, and 2 Combat Army Intelligence Detachment (601 & 602), two units of special intelligence operations.
| Unit | Command | Place | Province | |
|---|---|---|---|---|
| 1st Intelligence Company | I Armored Brigade | Tandil | Buenos Aires | |
| 2nd Intelligence Company | II Armored Brigade | Santa Fe | Santa Fe | |
| 3rd Intelligence Company | III Jungle Brigade | Resistencia | Chaco | |
| 4th Intelligence Company | IV Parachute Brigade | Córdoba | Córdoba | |
| 5th Intelligence Company | V Mountain Brigade | Salta | Salta | |
| 6th Intelligence Company | VI Mountain Brigade | Neuquén | Neuquén | |
| 8th Intelligence Company | VIII Mountain Brigade | Mendoza | Mendoza | |
| 9th Intelligence Company | IX Mechanized Brigade | Comodoro Rivadavia | Chubut | |
| 10th Intelligence Company | X Mechanized Brigade | Santa Rosa | La Pampa | |
| 11th Intelligence Company | XI Mechanized Brigade | Río Gallegos | Santa Cruz | |
| 12th Intelligence Company | XII Jungle Brigade | Posadas | Misiones | |
| 121st Division Intelligence Collection Centre | I Army Division | Curuzú Cuatiá | Corrientes | |
| 141st Division Intelligence Collection Centre | II Army Division | Córdoba | Córdoba | |
| 181st Division Intelligence Collection Centre | III Army Division | Bahía Blanca | Buenos Aires | |
| Military Intelligence Centre | J-II Army | Campo de Mayo | Buenos Aires | |
| 601st Combat Army Intelligence Detachment | J-II Army | Campo de Mayo | Buenos Aires | |
| 602nd Combat Army Intelligence Detachment | J-II Army | Holmberg | Córdoba | |
| Intelligence Support Battalion | J-II Army | Campo de Mayo | Buenos Aires |