EISI
| Acronym | Definition |
|---|---|
| EISI | Emerging Information Systems Inc. (Winnipeg, Manitoba, Canada) |
| EISI | European Information Society Institute (Slovakia) |
| EISI | Egyptian Information Society Initiative |
| EISI | Eastern Industrial Supplies, Inc. (Greenville, SC) |
| EISI | Emergency Information Services Interface |
| EISI | Eagle Integrated Solutions Incorporated (various locations) |
| EISI | Endeavor Information System, Inc |