| International Bathymetric Chart | Academic & Science |
| Integrated Business Curriculum | Academic & Science |
| Isaac Breuer College | Academic & Science |
| Institute of Business Consulting | Accounts and Finance |
| Inward Bills for Collection | Banking |
| Interstate Bakeries Corporation of Delaware | Business |
| International Business Communications | Business |
| Industrial Business Communications | Business |
| International Business Company | Business |
| International Business Corporation | Business |
| International Bedding Corporation | Business |
| Imports By Clotilde | Business |
| International Better Communication | Business |
| Interactive Business Card | Business |
| International Business Companies | Business |
| Intelligent Business Consulting | Business |
| Increased Business Competence | Business |
| International Business Chamber | Business |
| Independent Breweries Company | Business |
| Intercontinental Broadcasting Corporation | Business |
| Innovative Business Consultants | Business |
| Interstate Bakery Corporation | Business |
| Interstate Bakeries Corp | Business |
| I Bank Clear | Business |
| International Broadcast Centre | Business |
| Intercollegiate Business Convention | Business |
| International Business Center | Business |
| Insurance Bureau of Canada | Business |
| Israel Business Connection | Business |
| Ironbark Capital Ltd | Business |
| Illinois Business Consulting | Business |
| Interstate Brick Company | Business |
| In Business Category | Business |
| In-Bound Call | Business |
| International Business Communication | Business |
| International Broadcasting Convention | Community |
| Islander By Choice | Community |
| International Broadcasting Channel | Community |
| International Broadcast Congress | Community |
| Immanuel Baptist Church | Community |
| Irving Bible Church | Community |
| Indian Bank Comrades | Community |
| International Blues Challenge | Community |
| International Bridge Conference | Community |
| Icy Blackhandofdeath Club | Community |
| Integrated Business Computer | Computer Hardware |
| Inter-board Connector | Computer Hardware |
| Instrument Bus Computer | Computing |
| International Broadcast Center | Computing |
| Internet By Call | Computing |
| Internal Bus Controller | Computing |
| Integrated Broadband Communications | Computing |
| In Building Coverage | Computing |
| In Band Control | Computing |
| Internet Based Capabilities | Computing |
| Identity Based Cryptography | Computing |
| Internet Based Courseware | Computing |
| Internet Business Center | Computing |
| Internet Based Clipping | Computing |
| Internet Based Communication | Computing |
| Internet Based Corporate | Computing |
| International Business College | Educational Institute |
| Illinois Benedictine College | Educational Institute |
| Incredible Blue Cards | General |
| It's Bad Cola | General |
| Iveco body controller | General |
| Israel By Choice | General |
| Information Branch Channels | General |
| Indian Brand Coach | General |
| Interest on Borrowed Capital | General |
| InterContinental Beverage Capital | General |
| Inflammatory breast | General |
| Inter Blockchain Communication | General |
| Iraq Body Count | General |
| International Ballet Competition | General |
| International Betta Congress | General |
| Intermediate Bulk Containers | General |
| In Biosafety Cabinet | General |
| Isuzu Bedford Company | General |
| Integrated Brake Control | General |
| Intelligent Battery Charger | General |
| Iso Bizzarrini Club | General |
| International Bus and Coach | General |
| Intermediate Bulk Container | Governmental |
| Individual Blade Control | Governmental |
| International Broadcasting Cooperation | Governmental |
| International Building Code | Governmental |
| Iowa Board of Certification | Governmental |
| Indian Blockchain Council | Governmental |
| International Bonded Couriers | International |
| International Baptist Convention | International |
| International Bioethics Committee | International |
| International Bank of Crossbell | International |
| Interactive Business Channel | Internet |
| Internet Bird Collection | Internet |
| Institutional Biosafety Committee | Medical |
| Iron Binding Capacity | Medical |
| Inflammatory Breast Cancer | Medical |
| Independent Blue Cross | Medical |
| International Board Competition | Sports |
| Intercollegiate Bowling Championship | Sports |