Company lists · Data refreshed September 2026

Top 25 Civil infrastructure contractors based in Australia

Name: Civil infrastructure contractors based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 1,758 companies tracked

RevenueBase identified 1,758 civil infrastructure contractors headquartered in Australia as of September 2026 and tracks 54,731 professional contacts across them, including 16,965 with verified work emails. Sydney is the largest hub.

This list covers civil infrastructure contractors headquartered in Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

1,758Companies

54,731Contacts tracked

16,965Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest civil infrastructure contractors based in Australia

Ranked by team size

Top 25 of 1,758 civil infrastructure contractors based in Australia, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to civil infrastructure contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	CPB Contractors	Strong evidence	North Sydney, AustraliaHQ checked Sep 16, 2026	10001+	5,171 contacts →
	Strong evidence “CPB Contractors is a leading major contractor, trusted to build critical and complex infrastructure across Australia and New Zealand for a more connected, sustainable future.” Source: RevenueBase Database · checked Sep 16, 2026
2	SRG Global	Partial evidence	Perth, AustraliaHQ checked Sep 16, 2026	1,001-5,000	2,289 contacts →
	Partial evidence “SRG Global is a diversified infrastructure services company.” Source: RevenueBase Database · checked Sep 16, 2026
3	Seymour Whyte	Strong evidence	Eight Mile Plains, AustraliaHQ checked Sep 16, 2026	501-1,000	818 contacts →
	Strong evidence “Seymour Whyte is a multi award-winning civil contractor that delivers major essential infrastructure across Australia.” Source: RevenueBase Database · checked Sep 16, 2026
4	ICON	Indirect evidence	Richmond, AustraliaHQ checked Sep 16, 2026	501-1,000	777 contacts →
	Indirect evidence “Icon is a globally connected, integrated construction group trusted to build what matters most.” Source: RevenueBase Database · checked Sep 16, 2026
5	DT Infrastructure	Partial evidence	Brisbane City, AustraliaHQ checked Sep 16, 2026	1,001-5,000	699 contacts →
	Partial evidence “DT Infrastructure is a fresh name in Australia’s construction industry.” Source: RevenueBase Database · checked Sep 16, 2026
6	Winslow	Strong evidence	Essendon Fields, AustraliaHQ checked Sep 16, 2026	1,001-5,000	580 contacts →
	Strong evidence “Winslow has become one of Australia’s leading civil construction contractors with offices in Victoria, Queensland, Northen NSW and South Australia.” Source: RevenueBase Database · checked Sep 16, 2026
7	Goodline	Indirect evidence	Kawana Waters, AustraliaHQ checked Sep 16, 2026	501-1,000	570 contacts →
	Indirect evidence “Goodline is an Australian owned and based company established in by John and Catherine Kennedy for the provision of engineering, construction and maintenance services nationwide…” Source: RevenueBase Database · checked Sep 16, 2026
8	Symal Group	Indirect evidence	South Melbourne, AustraliaHQ checked Sep 16, 2026	1,001-5,000	563 contacts →
	Indirect evidence “We’ve always been a construction company that believes in driving positive change – for clients, the communities we work in, and of course, our people – wherever they are in…” Source: RevenueBase Database · checked Sep 16, 2026
9	Abergeldie Complex Infrastructure	Partial evidence	Regents Park, AustraliaHQ checked Sep 16, 2026	501-1,000	543 contacts →
	Partial evidence “Abergeldie is a locally owned contractor with 30 years industry experience in Australia and New Zealand.” Source: RevenueBase Database · checked Sep 16, 2026
10	Gamuda Australia	Partial evidence	North Sydney, AustraliaHQ checked Sep 16, 2026	201-500	458 contacts →
	Partial evidence “Established in 1976 and listed on the Kuala Lumpur Stock Exchange (KLSE) in 1992, Gamuda delivers innovative world-class infrastructure, concessions and communities development.” Source: RevenueBase Database · checked Sep 16, 2026
11	Nacap PTY LTD	Strong evidence	Doncaster, AustraliaHQ checked Sep 16, 2026	201-500	441 contacts →
	Strong evidence “Nacap is a leading energy infrastructure contractor with four decades of global experience in delivering large-scale and complex energy infrastructure projects to power…” Source: RevenueBase Database · checked Sep 16, 2026
12	Shadforth	Partial evidence	Forest Glen, AustraliaHQ checked Sep 16, 2026	501-1,000	388 contacts →
	Partial evidence “Shadforth continues to grow based on our reputation of “delivering quality infrastructure sooner”.” Source: RevenueBase Database · checked Sep 16, 2026
13	Interflow	Indirect evidence	Girraween, AustraliaHQ checked Sep 16, 2026	501-1,000	359 contacts →
	Indirect evidence “A name synonymous with ‘challenging the status quo’, we have the heart of a humble business, with the vision of something much greater: a vision that drives the growth of our…” Source: RevenueBase Database · checked Sep 16, 2026
14	HUMES	Partial evidence	Milton, AustraliaHQ checked Sep 16, 2026	501-1,000	296 contacts →
	Partial evidence “Humes is a division of Holcim Australia and the nation's leading civil precast concrete manufacturer.” Source: RevenueBase Database · checked Sep 16, 2026
15	Freyssinet Australia	Strong evidence	Macquarie Park, AustraliaHQ checked Sep 16, 2026	201-500	220 contacts →
	Strong evidence “Freyssinet is a versatile contractor that offers innovative solutions spanning from design to implementation for Specialist Civil Engineering and Structure Remediation projects.” Source: RevenueBase Database · checked Sep 16, 2026
16	Whittens	Strong evidence	Maroochydore, AustraliaHQ checked Sep 16, 2026	501-1,000	213 contacts →
	Strong evidence “As a specialist infrastructure, construction and services contractor, Whittens provides clients with a single source solution at every stage of the construction cycle, from early…” Source: RevenueBase Database · checked Sep 16, 2026
17	ACE Contractors Group Pty. LTD	Partial evidence	Nunawading, AustraliaHQ checked Sep 16, 2026	201-500	205 contacts →
	Partial evidence “Ace Contractors Group Pty.” Source: RevenueBase Database · checked Sep 16, 2026
18	Pensar	Partial evidence	Hamilton, AustraliaHQ checked Sep 16, 2026	201-500	198 contacts →
	Partial evidence “We offer insightful, original design thinking, implemented by a team with proven expertise to deliver flexible fit-for-purpose critical infrastructure solutions.” Source: RevenueBase Database · checked Sep 16, 2026
19	Exact Contracting	Strong evidence	Adelaide, AustraliaHQ checked Sep 16, 2026	201-500	190 contacts →
	Strong evidence “Exact Contracting operates in the Civil, Mining and Water Infrastructure Industries delivering innovative and cost-effective projects throughout Australia.” Source: RevenueBase Database · checked Sep 16, 2026
20	Shamrock Civil Engineering	Strong evidence	Brisbane, AustraliaHQ checked Sep 16, 2026	51-200	185 contacts →
	Strong evidence “Shamrock Civil is a privately owned civil construction company, delivering services to the Defence & Government sectors, gas and mining, transport infrastructure and commercial.” Source: RevenueBase Database · checked Sep 16, 2026
21	CMC	Strong evidence	Eagle Farm, AustraliaHQ checked Sep 16, 2026	51-200	182 contacts →
	Strong evidence “CMC is a privately owned civil infrastructure and mining sector contractor.” Source: RevenueBase Database · checked Sep 16, 2026
22	Quickway	Partial evidence	Silverwater, AustraliaHQ checked Sep 16, 2026	201-500	176 contacts →
	Partial evidence “Since 2006 we have been delivering high quality work on transport and utilities infrastructure projects of varying complexity across Australia.” Source: RevenueBase Database · checked Sep 16, 2026
23	Austral Construction	Strong evidence	Perth, AustraliaHQ checked Sep 16, 2026	201-500	174 contacts →
	Strong evidence “Austral Construction is an Australian engineering and construction contractor specialising in complex civil, marine and rail infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026
24	M2p Engineering	Indirect evidence	Teneriffe, AustraliaHQ checked Sep 16, 2026	201-500	169 contacts →
	Indirect evidence “M2P Engineering is a leading provider of end-to-end engineering, construction, and maintenance services to a wide variety of clients.” Source: RevenueBase Database · checked Sep 16, 2026
25	Hall Contracting	Partial evidence	Buderim, AustraliaHQ checked Sep 16, 2026	51-200	165 contacts →
	Partial evidence “Hall Contracting is Australia’s largest privately-owned dredging, civil and marine construction company with offices in South East Asia, the Pacific Islands and Australia.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: civil infrastructure contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names civil infrastructure contractors.
Partial evidence: Its own public description names part of civil infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name civil infrastructure contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,758 civil infrastructure contractors based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 16,965 reachable decision-makers.

Free signup · no credit card

View the full list →

Civil infrastructure contractors based in Australia at a glance

As of Sep 16, 2026

31.0%Verified-email coverage

31.1Average contacts per company

11-50Median size (employees)

6.3%Largest-city concentration · Sydney

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

518

11-50

767

51-200

368

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 1,758 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among civil infrastructure contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Australia whose own description of what they do matches “civil infrastructure contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names civil infrastructure contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among civil infrastructure contractors, and records with no verified work email. Companies headquartered outside Australia are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 16,965 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Civil infrastructure contractors by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names civil infrastructure contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many civil infrastructure contractors are there based in Australia?

RevenueBase identified 1,758 civil infrastructure contractors headquartered in Australia as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

CPB Contractors, headquartered in North Sydney, tops this list with the largest team on record.

Which city has the most civil infrastructure contractors?

Sydney leads with 110 headquartered companies, followed by Melbourne (77) and Perth (62).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 16,965 verified decision-maker contacts tracked across these 1,758 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,758 civil infrastructure contractors based in Australia. Start with a free account, no credit card.

Download this list →

Related lists

Civil infrastructure contractors by geography

Browse the directory

Browse: Companies home · All Australia lists · All Civil infrastructure contractors lists · New lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.