| Abbreviation | Definition |
|---|---|
| HSBT | Hellenic Society of Blood Transfusion |
| HSC | Humane Society of Charlotte |
| HSCCP | Hellenic Society for Colposcopy and Cervical Pathology |
| HSCI | Humane Society of Central Illinois |
| HSCP | Hawaii Society of Corporate Planners |
| HSCP | Houston Society of Clinical Pathologists |
| HSCW | Humane Society of Central Washington |
| HSDC | Historical Society of Dauphin County |
| HSDC | Humane Society of Davie County |
| HSDC | Humane Society of Delaware County |
| HSDR | Humane Society of Durham Region |
| HSDS | Houston Swing Dance Society |
| HSDS | Huntsville Swing Dance Society |
| HSEC | Historical Society of |
| HSEC | Humane Society of Eastern Carolina |
| HSEC | Humane Society of Elkhart County |
| HSEC | Humane Society of Elmore County |
| HSEP | Humane Society of El Paso |
| HSFA | Helderberg Society for the Aged |
| HSFC | Humane Society of Fairfax County |