QTenders and AusTender already email you free alerts when a tender is published, and you should use them. They do not tell you who has won that agency's work before, or whether one supplier holds most of it.
That part is public. It is just published as spreadsheets nobody reads.
| Agency | Trade awards | Suppliers | Top supplier holds |
|---|---|---|---|
| Central Queensland Hospital and Health Service | 43 | 15 | 18.6% |
| METRO NORTH HOSPITAL & HEALTH SERVICE | 978 | 109 | 13.1% |
| QFD | 470 | 213 | 6.2% |
| SCHHS | 129 | 78 | 3.1% |
| Seqwater | 545 | 157 | 7.0% |