| Institut Linguistique Adenet | Academic & Science |
| Integrated Language Arts | Academic & Science |
| Indian Library Association | Academic & Science |
| Iowa Library Association | Academic & Science |
| Idaho Library Association | Academic & Science |
| Information Literacy Assignment | Academic & Science |
| Integrated Load Analysis | Academic & Science |
| Illaga | Airport Code |
| Aquila, Inc. | Business |
| Illinois Library Association | Business |
| Intelligent Laser Applications, GmbH | Business |
| International Language Association | Business |
| Ila Group | Business |
| Individual Learning Account | Community |
| Independent Legal Advice | Community |
| International Listening Association | Community |
| International Linguistic Association | Community |
| International Law Association | Community |
| Independent Learning Assignment | Community |
| International Leadership Association | Community |
| International Longshoremen Association | Community |
| Independent Living Association | Community |
| International Literacy Association | Community |
| Illinois Limousine Association | Community |
| International Longevity Alliance | Community |
| Infinite Launch | Cryptocurrency |
| Image Light Amplifier | General |
| I Love Anime | General |
| Increase Load Action | General |
| International Labradoodle Association | General |
| Independent Living Aids | General |
| Inspired Living App | General |
| Inspired Living Application | General |
| I Live Alone | General |
| I Love Aruba | General |
| Intubation Laryngeal also | General |
| In Line Amplifier | General |
| Intelligent Light Assistant | General |
| I Love America | Governmental |
| International Language Academy | Governmental |
| Independent Liberation Army | Governmental |
| Institute for Leadership in the Americas | Governmental |
| Institute for Legislative Action | Governmental |
| Institute for Liberal Arts | Governmental |
| In Location Alliance | Governmental |
| Institute of the Liberal Arts | Governmental |
| Independent Label Alliance | Governmental |
| SILSIMAN | Indian Railway Station |
| Internationale Luftfahrt Austellung | International |
| Insulin-Like Activity | Medical |
| interlobar artery | Medical |
| interlobular artery | Medical |
| International Leprosy Association | Medical |
| Independent Logistics Assessment | Military and Defence |
| Illaga, Indonesia | Regional |
| Institut de Linguistique Appliquée | Regional |
| Instrument Landing Approach | Space Science |
| Idaho Lacrosse Association | Sports |
| I Love Art | Sports |
