| Integrated Furnace Control | Academic & Science |
| International Finance Corporation | Bank |
| Corporación Financiera Internacional | Business |
| Interchange Financial Services Corporation | Business |
| Industry Foundation Classes | Business |
| Iowa Fried Chicken | Business |
| Intact Financial Corporation | Business |
| International Financial Cooperation | Business |
| Indian Food Corporation | Business |
| Industrial Fumigant Company | Business |
| Independent Film Channel | Community |
| Irving Fisher Committee | Community |
| Indigenous Family Centre | Community |
| Intellectual Freedom Committee | Community |
| Ignore File Check | Computing |
| Interface Cable | Computing |
| Interface Clear | Computing |
| Input Flow Control | Computing |
| Ireland France Cable | Computing |
| Immersion Foundation Classes | Computing |
| Intel Fortran Compiler | Computing |
| InfinityCash | Cryptocurrency |
| Infinitecoin | Cryptocurrency |
| Instantaneous Fuel Consumption | General |
| Idling Fuel Consumption | General |
| Integrated Fuel Control | General |
| Indonesia Fiat Club | General |
| Indonesia Fortuner Community | General |
| Interactive File Controller | General |
| Iron From California | General |
| Industry Foundation Class | General |
| IMX Fan Club | General |
| International Finace Center | General |
| I Forgot Cheetos | General |
| International Film Channel | General |
| Interim Flight Clearance | General |
| Independent Film Channel–the | General |
| Integrated Frame And Cover | General |
| In Flight Connectivity | General |
| Individual Folding Carton | General |
| Intelligent Flexible Cloud | General |
| Issued For Construction | General |
| Intercontinental Federation Champions | Governmental |
| Intra Fraternity Council | Governmental |
| Inter Fraternal Council | Governmental |
| International Firestop Council | Governmental |
| Inter Faith Council | Governmental |
| Inter Fraternity Council | Governmental |
| International Folkdance Camp | International |
| International Fried Chicken | International |
| International Fire Code | International |
| International Feature Conference | International |
| International Financial Centres | International |
| International Fire Consultants | International |
| Internet Foundation Classes | Internet |
| International Financial Centre | Messaging |
| International Financial Center | Messaging |
| International Finance Centre | Messaging |
| International Finance Center | Messaging |
| Intelligence Fusion Center | Military and Defence |
| Item for Collection | Military and Defence |
| Irish Folklore Collection | Regional |
| Irish Folklore Collec | Regional |
