Official AusTender contract notices

Where government
contracts go

Explore 113,551 contracts across 82 weekly AusTender exports, with 143,833 preserved observations. Every selected contract is counted once using its latest observed full value.

Restricted to reported ABN 53000983700. Clear supplier identity restriction

$1,403,211,318.99

27 latest full contract values · AUD including applicable GST · Latest publication 2 March 2025 to 26 September 2026

All reporting agencies · All categories · All procurement methods · Supplier identity: abn-53000983700

Values cover the reported contract periods; this is not expenditure during the selected dates. Earlier versions are excluded from this total.

Download CSV (maximum 5,000 contracts)

Source contracts

27 matching contracts. Page 1 of 1.

Latest observed full value of each selected contract · AUD including applicable GST
ContractSupplier and agencyValueLatest publication
CN4274120 · Project Support
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$408,980.00
2026-09-04
Original notice
CN3989493 · Management Support Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$81,747,089.50
2026-07-20
Amendment A12
CN4261777 · Project Support Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$115,000.00
2026-07-17
Original notice
CN3635039 · Enterprise Support Services Agreement
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$685,189,044.83
2026-07-15
Amendment A11
CN4247345 · Installation Services
DOWNER DEFENCE SERVICES PTY LTDAustralian Naval Nuclear Power Safety Regulator
$15,555.61
2026-06-05
Original notice
CN3940433 · Integrated Warfare Systems Work Package
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$236,332,185.30
2026-05-29
Amendment A11
CN4244428 · Security Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$19,978.20
2026-05-27
Original notice
CN4237344 · Rations
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$60,358.94
2026-05-05
Original notice
CN4210258 · Schedule Analyst
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$190,220.00
2025-12-19
Original notice
CN4080595 · Project Management
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$5,421,438.58
2025-12-18
Amendment A2
CN4147681 · Cloud Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$486,611.85
2025-11-07
Amendment A1
CN4083457 · Professional Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$2,241,443.41
2025-10-28
Amendment A3
CN3490368 · Strategic Support Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$3,591,906.41
2025-10-09
Amendment A8
CN4179702 · Engineering Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$125,457,319.92
2025-09-23
Amendment A1
CN3664396 · Integrated Work Package
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$75,697,579.25
2025-09-01
Amendment A10
CN4183476 · Support Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$5,408,510.65
2025-08-27
Original notice
CN4179701 · Engineering Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$64,972,813.66
2025-08-14
Original notice
CN4178261 · Engineering Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$7,385,652.86
2025-08-08
Original notice
CN4172457 · Specialist Engineering Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$1,366,466.40
2025-07-23
Original notice
CN4092199 · Management and Strategic Support Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$2,720,728.93
2025-07-21
Amendment A3
CN4168018 · Infrastructure Installation Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$169,373.42
2025-07-08
Original notice
CN3606578 · Contractor Support Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$80,698,397.65
2025-05-24
Amendment A104
CN4031213 · Transition Support Services
DOWNER EDI ENGINEERING POWER PTY LTDDepartment of Defence
$4,460,113.26
2025-04-09
Amendment A4
CN3943617 · Engineering and Commercial Support Services
DOWNER EDI ENGINEERING POWER PTY LTDDepartment of Defence
$2,509,124.52
2025-03-28
Amendment A6
CN4135621 · Relocation Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$11,402.06
2025-03-18
Original notice
CN3842503 · Integrated Support Services
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$16,519,576.98
2025-03-17
Amendment A4
CN4135109 · Door Relocation
DOWNER DEFENCE SERVICES PTY LTDDepartment of Defence
$14,446.80
2025-03-17
Original notice

Full values by latest publication month

The complete selected scope, grouped by when each contract’s latest observed version was published. These are contract values, not monthly expenditure or amendment increments. Partial first and last months follow your exact date filters.

  1. 2025-03 (partial)$19,054,550.36
  2. 2025-04$4,460,113.26
  3. 2025-05$80,698,397.65
  4. 2025-07$4,256,568.75
  5. 2025-08$77,766,977.17
  6. 2025-09$201,154,899.17
  7. 2025-10$5,833,349.82
  8. 2025-11$486,611.85
  9. 2025-12$5,611,658.58
  10. 2026-05$236,412,522.44
  11. 2026-06$15,555.61
  12. 2026-07$767,051,134.33
  13. 2026-09 (partial)$408,980.00
Monthly values table
Same monthly values as the chart
MonthContract valueContracts
2025-03 (partial)$19,054,550.364
2025-04$4,460,113.261
2025-05$80,698,397.651
2025-07$4,256,568.753
2025-08$77,766,977.173
2025-09$201,154,899.172
2025-10$5,833,349.822
2025-11$486,611.851
2025-12$5,611,658.582
2026-05$236,412,522.443
2026-06$15,555.611
2026-07$767,051,134.333
2026-09 (partial)$408,980.001

Reporting agencies by contract value

Top 2 of 2 groups in the complete selected scope. Names stay as reported; groups without a usable ABN contain one contract each.

  1. Department of Defence

    $1,403,195,763.38 · 26 contracts

  2. Australian Naval Nuclear Power Safety Regulator

    $15,555.61 · 1 contract

Reported suppliers by contract value

Top 1 of 1 groups in the complete selected scope. Names stay as reported; groups without a usable ABN contain one contract each.

  1. DOWNER DEFENCE SERVICES PTY LTD / DOWNER EDI ENGINEERING POWER PTY LTD

    $1,403,211,318.99 · 27 contracts · Reported ABN 53 000 983 700

What these values mean

Each amount is the reported full contract value, including GST where applicable, in nominal Australian dollars. It covers the reported contract period. It is not annual expenditure, cash paid, all government spending or spending in a supplier’s local area. Unexercised future options are not necessarily included.

This snapshot includes every notice in 82 consecutive weekly exports, covering 2 March 2025 to 26 September 2026, retrieved 1 October 2026 (UTC date). AusTender lists only about eighteen months of exports, so weeks before 23 March 2025 are kept from our earlier downloads. Each contract contributes its latest observed version once. Earlier versions remain available in its history; values of successive amendments are never added together. Date filters use that latest observation’s publication date, including amendments, not the contract start date.

Weekly files describe information at extraction. Later corrections, cancelled notices, or contracts with no publication in this archive may be absent. This is not the entire historical AusTender register. Some source timestamps fall just outside their file’s labelled week; their reported dates are retained. Three malformed observations have shifted columns; affected supplier/category fields are marked unavailable. Source dates in 1900 or end dates in the next century are flagged, not interpreted as ordinary durations.

Supplier grouping uses reported ABNs with a valid checksum; it is not independent verification against the business register. Missing or invalid ABNs remain separate by contract. Equal names do not establish equal legal entities. A contract award is not evidence of wrongdoing.

Original weekly exports · Official reporting rules and thresholds · CC BY 3.0 AU. Source: AusTender, Department of Finance, Commonwealth of Australia.

Explore the illustrative public meeting register issue or enquire about research. Refreshes and corrections use reviewed source snapshots; the original AusTender notices remain the authority.