| Rank | Abbreviation | Meaning |
|---|
| ***** | UMMC | Unspecified Minor Military Construction
| |
| ***** | UMMC | University of Mississippi Medical Center
| |
| ***** | UMMC | University of Maryland Medical Center
| |
| ***** | UMMC | Ural Mining and Metallurgical Company
| |
| **** | UMMC | You Make Me Crazy
| |
| **** | UMMC | United Memorial Medical Center
| |
| **** | UMMC | Urgent Minor Military Construction
| |
| *** | UMMC | University of Michigan Medical Center
| |
| *** | UMMC | Urban Music Marketing Company
| |
| *** | UMMC | University of Malawi Management Centre
| |
| *** | UMMC | Union Ministries of Mines and Coal
| |
| *** | UMMC | University of Massachusetts Medical Center
| |
| *** | UMMC | University of Minnesota Medical Center
| |
| *** | UMMC | Ural Mining Metallurgical Company
| |
| *** | UMMC | Upper Murray Motorcycle Club
| |
| *** | UMMC | Urals Mining and Metallurgical Company
| |
| *** | UMMC | University Malaya Medical Centre
| |
| ** | UMMC | Universiti Malaya Medical Center
| |
| ** | UMMC | Union of Metro Manila Cooperatives
| |
| ** | UMMC | University of Maryland Medical Center's
| |
| ** | UMMC | University Malaya Medical Center
| |
| ** | UMMC | Universiti Malaya Medical Centre
| |
| * | UMMC | University of Missouri Medical Center
| |
| * | UMMC | University of MiamiMath and Company
| |
| * | UMMC | UIAA Mountain Medicine Centre
| |