| Acronym | Definition |
|---|
| ISTI➣Istituto di Scienza e Tecnologie dell'Informazione (Pisa, Italy) |
| ISTI➣Institut Supérieur de Traducteurs et Interprètes (institution of higher learning for translators and interpreters) |
| ISTI➣Institute of Information Science and Technologies |
| ISTI➣Interfaith Sexual Trauma Institute (Saint John's University and Abbey; Collegeville, MN) |
| ISTI➣Instrumental Software Technologies, Inc. (New York) |
| ISTI➣Intelligent Systems Technology, Inc. |
| ISTI➣International Security Training Institute (Chester, NY) |
| ISTI➣Information Superiority Technology Integration |