| Rank | Abbreviation | Meaning |
|---|
| ***** | HHSC | Headquarters & Headquarters Service Company
| |
| **** | HHSC | H H Scientific Consultants
| |
| *** | HHSC | Headquarters and Headquarters Service
| |
| *** | HHSC | House to House or Street Collection
| |
| ** | HHSC | Health and Human Services Center
| |
| ** | HHSC | Human Hematopoietic Stem Cell
| |
| ** | HHSC | Health and Human Services Committee
| |
| * | HHSC | House Homeland Security Committee
| |
| * | HHSC | Health and Human Service Commission's
| |
| * | HHSC | Health and Human Services for Children
| |
| * | HHSC | Hindu Heritage Summer Camp
| |
| * | HHSC | Hospitals and Health Services Commission
| |
| * | HHSC | Health Human Services Commission
| |
| * | HHSC | Health and Human Services Cluster
| |
| * | HHSC | Heart of the Hills Swim Club
| |
| * | HHSC | Health and Human Services Coalition
| |
| * | HHSC | Health and Human Services Collaborative
| |
| * | HHSC | Health and Human Services Council
| |
| * | HHSC | Health Hazard Severity Category
| |
| * | HHSC | Hollywood Hill Saddle Club
| |
| * | HHSC | Hemel Hempstead Swimming Club
| |
| * | HHSC | Health Human Services Coordinated
| |
| * | HHSC | Houston Health Science Center
| |
| * | HHSC | Haliburton Highlands Stewardship Council
| |
| * | HHSC | Hand Held System Controller
| |