| IBSC | Ikan Bilis Swimming Club 
| Others |
| IBSC | Independent Banks of South Carolina
| Others |
| IBSC | Individual Business and Society Curriculum
| Others |
| IBSC | Institutional Bio safety
| Others |
| IBSC | Institutional Bio safety Committee
| Others |
| IBSC | Institutional Biosafety Sub Committee
| Others |
| IBSC | Insurance Benefit Spot Check
| Others |
| IBSC | Integration Business Survival Conference
| Others |
| IBSC | International Bird Strike Committee
| Others |
| IBSC | International Boys Schools Coalition
| Others |
| IBSC | International Brazing and Soldering Conference
| Others |
| IBSC | International Buddhist Studies College
| Others |
| IBSC | International Business Support Center
| Others |
| IBSC | Inverness Backcountry Snowsports Club
| Others |
| IBSC | Investment Banking Scholars Club
| Others |