| ITOS | Improved TIROS Operational Satellite | 泰罗斯改进型工作卫星 |
| ITOS | Integrated Test and Operations System (NASA) | 综合测试和操作系统（NASA） |
| ITOS | International Tug of Opportunity System | 国际机会拖船制度 |
| ITOS | Interim Tactical Orderwire Subsystem | 临时战术命令线子系统 |
| ITOS | Integrated Test and Operating System | 集成测试和操作系统 |
| ITOS | Improved TIROS Operational System (polar-orbiting US weather satellites) | 改进的TIROS操作系统（美国极轨气象卫星） |
| ITOS | Indalo Trans Oceans Sailors (Zurich, Switzerland) | Indalo跨洋水手（瑞士苏黎世） |
| ITOS | Interim Tactical Orderwire System | 临时战术命令线系统 |
| ITOS | Information Technology Outreach Services | 信息技术外联服务 |
| ITOS | Integrated Test and Operations System | 综合测试和操作系统 |
| ITOS | International Taxation and Offshore Services, LTD. | 国际税务和离岸服务有限公司。 |