| Acronym | Definition |
|---|
| ITOS➣Information Technology Outsourcing Services |
| ITOS➣Improved TIROS Operational System (polar-orbiting US weather satellites) |
| ITOS➣Internet Traffic Optimization Services (Constellix) |
| ITOS➣Improved TIROS Operational Satellite |
| ITOS➣International Tug of Opportunity System |
| ITOS➣Integrated Test and Operations System (NASA) |
| ITOS➣Interim Tactical Orderwire System |
| ITOS➣Interim Tactical Orderwire Subsystem |
| ITOS➣Integrated Test and Operating System |
| ITOS➣Indalo Trans Oceans Sailors (Zurich, Switzerland) |