| Acronym | Definition |
|---|
| UMSI➣University of Minnesota Supercomputing Institute |
| UMSI➣United Merchant Services, Inc. (Hackensack, NJ) |
| UMSI➣University of Michigan School of Information |
| UMSI➣Utility Mapping Services, Inc. (subsurface utility engineering) |
| UMSI➣Undergraduate to Medical School Initiative (Texas Tech University) |
| UMSI➣UNCF (United Negro College Fund)/Merck Science Initiative (Fairfax, VA) |