| ICBA | Independent College Bookstore Association 
| Others |
| ICBA | Independent Community Bankers of America
| Others |
| ICBA | Independent Contractors and Businesses Association (Canada)
| Others |
| ICBA | Ingham County Bar Association
| Others |
| ICBA | Inter County Baseball Association
| Others |
| ICBA | Inter County Basketball Association
| Others |
| ICBA | Inter-County Basketball Association
| Others |
| ICBA | Intermountain Compensation and Benefits Association
| Others |
| ICBA | International Candlepin Bowling Association
| Others |
| ICBA | International Carbon Black Association
| Others |
| ICBA | International Center For Biosaline Agriculture
| Others |
| ICBA | International Certified Behavior Analyst
| Others |
| ICBA | International Community of Booksellers' Associations
| Others |
| ICBA | International Compressed Air Breathing Apparatus
| Others |
| ICBA | International Council of Biotechnology Associations
| Others |
| ICBA | Irish Catholic Benevolent Association
| Others |