| Acronym | Definition |
|---|
| ISIF➣Information Society Innovation Fund (grant program) |
| ISIF➣International Symposium on Integrated Ferroelectrics |
| ISIF➣International Society for Information Fusion |
| ISIF➣Industrial Site Improvement Fund (Ohio) |
| ISIF➣Idaho State Insurance Fund (Boise, ID) |
| ISIF➣Industrial Special Indemnity Fund (workers' compensation; Idaho) |