| Rank | Abbreviation | Meaning |
|---|
| ***** | HECS | Healthy Environments and Consumer Safety
| |
| **** | HECS | Hospital Ethical Climate Survey
| |
| *** | HECS | High Efficiency Combustion System
| |
| *** | HECS | heavy equipment claims support
| |
| *** | HECS | Hall Effect Current Sensor
| |
| ** | HECS | Harsh Environment Combat Suit
| |
| ** | HECS | Health and Community Services
| |
| ** | HECS | Higher Education Contribution Scheme
| |
| ** | HECS | Hospital Environmental Control System
| |
| ** | HECS | Human endothelial culture supernatant
| |
| ** | HECS | Higher Eduction Contribution Scheme
| |
| ** | HECS | Heritage Education and Communication Service
| |
| ** | HECS | Healthcare ethics committees
| |
| ** | HECS | Higher Education Career Services
| |
| * | HECS | High Efficiency Control System
| |
| * | HECS | hospital ethics committees
| |
| * | HECS | Hospital Equipment Control System
| |
| * | HECS | human endothelial cell culture supernatant
| |
| * | HECS | Household Energy Consumption Survey
| |
| * | HECS | Hazardous Energy Control Standard
| |
| * | HECS | High-Efficiency Coupling Structure
| |
| * | HECS | Historic East Coast Storm
| |
| * | HECS | Health Environments and Consumer Safety
| |
| * | HECS | Hydraulic Electric Component Supply
| |
| * | HECS | Human Energy Concealment System
| |