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 51109779311. Clear supplier identity restriction

$4,192,557.90

6 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-51109779311

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

6 matching contracts. Page 1 of 1.

Latest observed full value of each selected contract · AUD including applicable GST
ContractSupplier and agencyValueLatest publication
CN4209527 · Warradjan Power Supply - Generator Hire at Kakadu National Park
Blueridge Engineering Pty LtdDirector of National Parks
$600,000.00
2026-08-27
Amendment A1
CN4217714 · Jim Jim Water Filtration System at Kakadu National Park
Blueridge Engineering Pty LtdDirector of National Parks
$400,000.00
2026-02-04
Original notice
CN4207750 · Reactive maintenance at the Ramingining GNSS site (RAMI).
Blueridge Engineering Pty LtdGeoscience Australia
$20,302.67
2025-12-11
Original notice
CN4199033 · Generator Service, Repairs and Maintenance at Kakadu National Park
Blueridge Engineering Pty LtdDirector of National Parks
$484,549.60
2025-11-03
Original notice
CN4133661 · Potable water infrastrucutre in Kakadu
BLUERIDGE ENGINEERING PTY LTD [923]Department of Climate Change, Energy, the Environment and Water
$2,662,446.15
2025-05-29
Amendment A1
CN4132356 · Supply, install and commission UPS 1500VA 240V
BLUERIDGE ENGINEERING PTY LTD [923]Department of Climate Change, Energy, the Environment and Water
$25,259.48
2025-03-06
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)$25,259.48
  2. 2025-05$2,662,446.15
  3. 2025-11$484,549.60
  4. 2025-12$20,302.67
  5. 2026-02$400,000.00
  6. 2026-08$600,000.00
Monthly values table
Same monthly values as the chart
MonthContract valueContracts
2025-03 (partial)$25,259.481
2025-05$2,662,446.151
2025-11$484,549.601
2025-12$20,302.671
2026-02$400,000.001
2026-08$600,000.001

Reporting agencies by contract value

Top 3 of 3 groups in the complete selected scope. Names stay as reported; groups without a usable ABN contain one contract each.

  1. Department of Climate Change, Energy, the Environment and Water

    $2,687,705.63 · 2 contracts

  2. Director of National Parks

    $1,484,549.60 · 3 contracts

  3. Geoscience Australia

    $20,302.67 · 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. Blueridge Engineering Pty Ltd / BLUERIDGE ENGINEERING PTY LTD [923]

    $4,192,557.90 · 6 contracts · Reported ABN 51 109 779 311

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.