MISI
| Acronym | Definition |
|---|---|
| MISI | Management Information Services, Inc. (consulting firm; Washington, DC) |
| MISI | Metro Information Services Inc. (Virginia) |
| MISI | Module Interaction Stability Index (software metric) |
| MISI | Micro-Sensors for Imaging |
| MISI | Municipal Information Systems, Inc. (St. Louis, MO) |
| MISI | Modular Imaging Spectrometer Instrument |
| MISI | Municipal Infrastructure and Support Initiative (USAID) |
| MISI | Marubeni-Itochu Steel Incorporated (Japan) |