| IBSA | IL Baptist State Association 
| Others |
| IBSA | Illinois Baptist State Association
| Others |
| IBSA | Independent Builders Supply Association
| Others |
| IBSA | India Brazil and South Africa
| Others |
| IBSA | India Brazil South Africa
| Others |
| IBSA | India-Brazil-South Africa
| Others |
| IBSA | Indicators Benchmarks Scoping and Assessment
| Others |
| IBSA | Indicators Benchmarks Scoping Assessment
| Others |
| IBSA | Innovation and Business Skills Australia
| Others |
| IBSA | International Basketball Sports Academy
| Others |
| IBSA | International Beauty Sharpening Association
| Others |
| IBSA | International Bergamasco Sheepdog Association
| Others |
| IBSA | International Bible Students Association
| Others |
| IBSA | International Bilingual Schools of Africa
| Others |
| IBSA | International Blind Sports Association
| Others |
| IBSA | International Business School Alliance
| Others |
| IBSA | International Business Solutions Alliance
| Others |
| IBSA | International Business Structuring Association
| Others |
| IBSA | International Business Student Association
| Others |
| IBSA | International Business Students Association
| Others |