Contract notice CN4179702 · Department of Defence
Engineering Services
$125m
whole-of-life value, after 1 amendment
+$65m (+107.4%) since first published at $60m
- Supplier
- DOWNER DEFENCE SERVICES PTY LTD ABN 53000983700
- Agency
- Department of Defence
- Procurement method
- open tender
- Term
- 2025-09-01 to 2027-06-30
- Published
- 2025-08-14
- Category (UNSPSC)
- 81100000
- Agency reference
- 4610001311
Worth a closer look
Value increased after award: +107% on first published value. Agencies must publish amendments that change a contract’s value. Large increases can mean the original scope or price was understated.
Common explanations: Additional work or an extended term agreed after award. Options in the original contract that were later taken up. A correction to a value entered wrongly.
Value by financial year
The total value spread evenly from start to end date. estimate: annualised
| Financial year | Estimated amount |
|---|---|
| 2025-26 | $57m |
| 2026-27 | $69m |
Published versions
Every version of this notice we have loaded. Source: AusTender OCDS API.
| Date | Version | Value |
|---|---|---|
| 2025-08-14 | original notice | $60m |
| 2025-09-23 | amendment | $125m |