| Abbreviation | Definition |
|---|---|
| HMC | Hero Music Company |
| HMC | Herron Maintenance Company |
| HMC | Hornberger Management Company |
| HMC | Horowhenua Motor Company |
| HMC | Hyderabad Municipal Corporation |
| HMC | Hyundai Motor Company |
| HMCL | Hugh Munro Construction Ltd |
| HMDC | Hibernia Management and Development Company |
| HMEC | Horace Mann Educators Corporation (insurance holding company) |
| HMER | Heavy Mobile Equipment Repairer |
| HMFL | Hilton Metal Forging Ltd |
| HMG | Higgins Music Group |
| HMH | Heavy Metal Heaven |
| HMHCO | Houghton Mifflin Harcourt |
| HMI | Harvard Medical International |
| HMI | Health Management Incorporated |
| HMI | Homogeneous Metals Inc |
| hmil | Hisar Metal Industries Ltd |
| hmil | Hyundai Motor India Limited |
| HMIL | Hyundai Motor India Ltd |