Australia · Commonwealth contract register · Supplier record

Shamrock Civil Engineering Pty Ltd

Line: Roads and landscape (30120000)Register loaded to September 2026Compiled 6 October 2026

Shamrock Civil Engineering Pty Ltd — Australia · Commonwealth contract register · Supplier record: 29 contracts, all years (A$111,515,488 · Nov 2021 – Jul 2026); A$47.0M since January 2024 (17 contracts · 2 agencies); 1st rank in the line (of 51 suppliers · 29.05%); 10 agencies never served (A$29.7M on the line without Shamrock Civil Engineering Pty Ltd).

Assay record ASY-AU-03VC8LR04Q · Cite as: Assay Systems, “Shamrock Civil Engineering Pty Ltd in the AusTender register”, https://assay-systems.com/register/au/shamrock-civil-engineering-pty-ltd/

29
contracts, all years
A$111,515,488 · Nov 2021 – Jul 2026
A$47.0M
since January 2024
17 contracts · 2 agencies
1st
rank in the line
of 51 suppliers · 29.05%
10
agencies never served
A$29.7M on the line without Shamrock Civil Engineering Pty Ltd

Own record by year

2021 onward
A$2.9M
A$31.5M
A$30.1M
A$23.4M
A$18.8M
A$4.8M
202120222023202420252026

Who buys from Shamrock Civil Engineering Pty Ltd

since January 2024
2agencies
A$47.0Mpaid
99.5%top buyer
Department of Defence99.5%
A$46,755,941
Great Barrier Reef Marine Park Authority0.5%
A$234,552

The line

since January 2024
A$111Mline value
76contracts
11agencies
51suppliers
81.7%held by top ten

Roads and landscape (30120000)

A$57.9M
A$36.4M
A$16.8M
202420252026Jan–Sep
1stof 51 suppliers
A$32,254,100Shamrock Civil Engineering Pty Ltd in the line
29.05%share of the line
39.7%of A$81,327,504 spent by Department of Defence

Agencies that buy the line and never bought from Shamrock Civil Engineering Pty Ltd

10agencies
27contracts
A$29,710,953since January 2024
National Capital Authority7 contracts
A$18,586,431
Director of National Parks2 contracts
A$4,441,183
Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts4 contracts
A$2,119,650
Australian Signals Directorate3 contracts
A$2,112,934
Department of Infrastructure, Transport, Regional Development, Communications and the Arts3 contracts
A$1,300,000
Australian Federal Police3 contracts
A$799,590
Department of Home Affairs1 contract
A$165,000
National Indigenous Australians Agency1 contract
A$112,750
Australian Radiation Protection and Nuclear Safety Agency2 contracts
A$45,272
Department of Foreign Affairs and Trade1 contract
A$28,143

How the line is bought

by value, since 2024
40%limited tender
0of these to Shamrock Civil Engineering Pty Ltd
Open tender16 contracts
A$66,225,492 · 59.6%
Limited tender, no open approach to market60 contracts
A$44,812,965 · 40.4%

Contracts reaching their end dates

Oct 2026 – October 2027
10contracts
A$20,466,964end by October 2027
4end in June 2027 · A$8.6M
4in agencies never served · A$6.9M
A$2.4M
A$4.2M
A$2.8M
A$286K
A$8.6M
A$2.2M
Dec 261 contractJan 272 contractsFeb 271 contractApr 271 contractJun 274 contractsAug 271 contract

Suppliers next to it in the line

since January 2024
Shamrock Civil Engineering Pty Ltd
A$32,254,100
ACE INFRASTRUCTURE PTY. LTD.2 contracts · 1 agency
A$12,714,502
Southern Asphalt Services Pty Ltd2 contracts · 1 agency
A$11,609,093
WAANYI SHAMROCK UNITED PTY LTD2 contracts · 1 agency
A$6,077,908

All 51 suppliers in the line

Fastest-growing supplier in the line

same line
+114%growth

71610642058

2024 to date
A$11,609,093
2022–2023
A$5,428,074

The extract

Every buying office, every contract holder, value, number and end date behind the figures above.

Request extractSee a sample extract

Source: AusTender Contract Notice Export, Department of Finance, Commonwealth of Australia, via data.gov.au, licensed under Creative Commons Attribution 3.0 Australia; accessed 25 September 2026.Assay Systems has changed the data.