IBC
- CPUID
- IBC (bus manufacturer)
- IBC Airways
- IBC Root Beer
- IBC Studios
- IBC Vehicles
- Indiana Bible College
- Inflammatory breast cancer
- Information-based complexity
- Insolvency and Bankruptcy Code, 2016
- Institute of Business Consulting
- Intercontinental Broadcasting Corporation
- Intermediate bulk container
- International Bahá'í Council
- International Bank of Commerce
- International Beacon Project
- International Biographical Centre
- International Bonded Couriers
- International Botanical Congress
- International Boundary Commission
- International Boxing Club of New York
- International Boxing Council
- International Broadcast Centre
- International Broadcasting Convention
- International Buddhist College
- International Building Code
- International Old Catholic Bishops' Conference
- International branch campus
- International business company
- Interstate Bakeries Corporation
- Intertemporal budget constraint
- Inuit Broadcasting Corporation
- Iran Bioinformatics Center
- Iraq Body Count project
- Irish Baptist College
- Isaac Breuer
- Italy. Common Good
- Iwate Broadcasting Company
- Leonard Plugge
- Índice Bursátil de Capitalización