| Abbreviation | Definition |
|---|---|
| HEAL | Healthy Earth Alliance Living |
| HEAL | Human Energy Alliance Laboratories |
| HEAR | Higher Education Alliance for Refugees |
| HESA | Health and Environment Strategic Alliance |
| HETA | Health Electrification and Telecommunications Alliance |
| HEVRA | Hybrid and Electric Vehicle Repair Alliance |
| HEVRA | Hybrid and Electric Vehicle Repairers Alliance |
| HGA | Hamptons Green Alliance |
| HHA | Happy Hackers Alliance |
| HIA | Health Information Alliance |
| HIEA | Health Interoperability and Exchange Alliance |
| HKA | Hopewell Keroka Alliance |
| HKPA | Hong Kong Progressive Alliance |
| HKSAR | Hong Kong secret alliance region |
| HLBA | Ha Long Bay Alliance |
| HLBA | Holland Lop Breeders Alliance |
| HLTA | Hunterdon Land Trust Alliance |
| HMAC | Home Mortgage Alliance Corporation |
| HOA | Home Owners Alliance |
| HPA | Harry Potter Alliance |