| Sigla | Nombre |
|---|---|
| HCLS | The Halliday Centre for Intelligent Applications of Language Studies |
| Hi-Drive | Hi-Drive, Addressing challenges toward the deployment of higher automation |
| HKITF | Hong Kong Information Technology Federation |
| HL7 | Health Level Seven International |
| HMEI | The Association of Hydro-Meteorological Equipment Industry |
| HON | Health On the Net Foundation |
| HOTREC | Hotels, Restaurants & Cafés in Europe |
| Hydrogen Council | Hydrogen Council |
| HySafe | International Association for Hydrogen Safety |