| ISIA | Idinvest SME Industrial Assets 
| Others |
| ISIA | Illinois Self Insurers Association
| Others |
| ISIA | Indiana Self Insurers Association
| Others |
| ISIA | Information And Software Industry Association
| Others |
| ISIA | Intelligent Structured Intermittent Auscultation
| Others |
| ISIA | International Serum Industry Association
| Others |
| ISIA | International Ski Instructors Association
| Others |
| ISIA | Irish Security Industry Association
| Others |
| ISIA | ISIA Stands for Information And
| Others |
| ISIA | Istituti Superiori per le Industrie Artistiche
| Others |