| Abbreviation | Definition |
|---|---|
| IAVI | International Audio Visual Inc |
| IAW | Internet Access Worldwide (Canadian ISP) |
| IAWC | Illinois American Water Company |
| IAWC | Indiana American Water Company |
| IB | Independent Business |
| IB | Industrial Brownhoist |
| IBA | Independent Business Advisors |
| IBA | Indian Brown Ale |
| IBBI | Independent Boat Builders Inc |
| IBC | Imports By Clotilde |
| IBC | Independent Breweries Company |
| IBC | Intercontinental Broadcasting Corporation |
| IBC | International Bedding Corporation |
| IBC | International Better Communication |
| IBC | Interstate Bakeries Corp |
| IBC | Interstate Bakery Corporation |
| IBCW | I Buy Copper Wire |
| IBDC | Inner Beat Dance Company |
| IBDN | ICAN Business Development Network |
| IBE | International Beauty Exchange |