HEOS
| Acronym | Definition |
|---|---|
| HEOS | Hermes Equity Ownership Services (investment advising; London, UK) |
| HEOS | Hit Explorer Operating System (software) |
| HEOS | High Efficiency Optical System (liquid crystal projector) |
| HEOS | Hanwell and Ealing Operatic Society (UK) |
| HEOS | Highly Elliptical Orbit Satellite (telecommunications) |
| HEOS | High Earth Orbit Satellite |
| HEOS | Hotel Equipment and Operating Services |