| Acronym | Definition |
|---|
| SIAG➣Service Industry Advisory Group (Australia) |
| SIAG➣Strategic Investment Advisory Group (J.P. Morgan) |
| SIAG➣Social Inclusion Advisory Group (UK) |
| SIAG➣Survey Instrument, Azimuth Gyroscope |
| SIAG➣SOCITM (Society of Information Technology Managers) Information Age Government Group (UK) |