| ASTI | Above Standard Tenant Improvement 
| Others |
| ASTI | Accessible Sustainable Transport Integration
| Others |
| ASTI | Adaptive Sound Technologies Inc
| Others |
| ASTI | Advanced Simulation Technology Inc
| Others |
| ASTI | Advanced Simulation Technology, Inc.
| Others |
| ASTI | Advances in Science Technology Innovation
| Others |
| ASTI | Agricultural Science And Technology Indicators
| Others |
| ASTI | Agriculture Science and Technology Indicator
| Others |
| ASTI | Akademi Seni Tari Indonesia
| Others |
| ASTI | Alaskan Satellite Telecommunications Infrastructure
| Others |
| ASTI | Ammonia Safety Training Institute
| Others |
| ASTI | Ankara Sehirler Arasi Terminal Isletmesi
| Others |
| ASTI | Ankara Sehirlerarasi Terminal Isletmesi
| Others |
| ASTI | Annual Service Training Institute
| Others |
| ASTI | Arborist Safety Training Institute
| Others |
| ASTI | Arrowhead Space and Telecommunications Inc
| Others |
| ASTI | Ascent Solar Technologies Inc
| Others |
| ASTI | Asian Scripts Technology Infrastructure
| Others |
| ASTI | Association of Secondary Teachers Ireland
| Others |
| ASTI | Association of Secondary Teachers of Ireland
| Others |
| ASTI | Associations des Sciences et Technologies de l'Information
| Others |
| ASTI | French Association for the Information Sciences and Technologies
| Others |