WMSI
| Acronym | Definition |
|---|---|
| WMSI | Wall Motion Score Index |
| WMSI | Wealth Management Systems, Inc. (financial services industry; Bedminster, NJ) |
| WMSI | Web Marketing Services, Inc. (Clarksville, VA) |
| WMSI | Water Management Services, Inc. (Florida) |
| WMSI | Warning and Monitoring Systems International (natural hazards warning system) |
| WMSI | Waste Micro Systems, Inc. (Saint Clair Shores, MI) |