| Rank | Abbreviation | Meaning |
|---|
| ***** | MHRC | Manitoba HVDC (High Voltage Direct Current) Research Centre
| |
| ***** | MHRC | Manitoba Housing and Renewal Corporation
| |
| **** | MHRC | Mental Health Resource Center
| |
| *** | MHRC | Manassas Honda Riders Club
| |
| *** | MHRC | Montpellier Hérault Rugby Club
| |
| *** | MHRC | Maine Human Rights Commission
| |
| *** | MHRC | Madison Health Resource Center
| |
| *** | MHRC | Military History Research Centre
| |
| *** | MHRC | Medical Health and Research Council
| |
| ** | MHRC | Maryland Human Relations Commission
| |
| ** | MHRC | Management of Human Resources
| |
| ** | MHRC | Manitoba Health Research Council
| |
| ** | MHRC | Manitoba Horse Racing Commission
| |
| ** | MHRC | Minority Health Resource Center
| |
| ** | MHRC | Manufactured Housing Resource Center
| |
| ** | MHRC | Martin House Restoration Corporation
| |
| ** | MHRC | Mental Health Research Center
| |
| ** | MHRC | Memorial Human Rights Centre
| |
| * | MHRC | Mental Health Rehabilitation Center
| |
| * | MHRC | Minority Health Research Center
| |
| * | MHRC | Metropolitan Human Rights Center
| |
| * | MHRC | Military History Research Collection
| |
| * | MHRC | Mental Health Rights Coalition
| |
| * | MHRC | Mental Health Resource Centre
| |
| * | MHRC | Mile High Radio Club
| |