| Abbreviation | Definition |
|---|---|
| ITT | Invitation To Tender |
| ITWG | Information Technology Working Group |
| IU | Individual Unemployable |
| IUV | Image Understanding Workshop |
| IUV | Industry Usability Workshop |
| IUW | Image Understanding Workshop |
| IUW | Industry Usability Workshop |
| IVD | Indelible Vision Design |
| IVE | Instant Virtual Extranet |
| IW-1 | Class I Injection Well |
| IW-2 | Class II Injection Well |
| IWA | Inter-company Work Authority |
| IWG | Integration Working Group |
| IWM | Information Windowing Method |
| IWM | Intelligent Work Management |
| IWMS | Integrated Waste Management System |
| IWMS | Integrated Workplace Management System |
| IWMS | International Warehouse Management System |
| IWQ | Invoice Work Queue |
| IWS | Industrial Water Supply |