| Acronym | Definition |
|---|
| ASTI➣Advanced Simulation Technology Inc |
| ASTI➣Association of Secondary Teachers Ireland |
| ASTI➣Advanced Science and Technology Institute |
| ASTI➣Agricultural Science and Technology Indicators |
| ASTI➣Association de Solidarité avec les Travailleurs Immigrés (French: Association of Solidarity with Migrant Workers) |
| ASTI➣Fédération des Associations Françaises des Sciences et Technologies de l'Information |
| ASTI➣Absolute Solar Transmittance Interferometer (Atmospheric Radiation Measurement; US Department of Energy) |
| ASTI➣American Service to India |
| ASTI➣Applied Sciences Technological Institute, Inc. (Philippines) |
| ASTI➣Ammonia Safety Training Institute |
| ASTI➣Association des Sciences et Technologies de l'Information (French: Association of Sciences and Information Technology) |
| ASTI➣Aerospace Software and Technologies Institute (University of Technology, Delft) |
| ASTI➣Applied Systems Technologies Inc. |
| ASTI➣Association for Science, Technology, and Innovation |
| ASTI➣Anti-Submarine Target Indicator |
| ASTI➣Army Secure Tactical Initiative |
| ASTI➣Ankara Sehirlerarasi Terminal Isletmesi (Turkey) |
| ASTI➣Arrowhead Space and Telecommunications, Inc. |