Company lists · Data refreshed September 2026

Top 25 Civil contractors specializing in water based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 1,192 companies tracked

RevenueBase identified 1,192 civil contractors specializing in water headquartered in Australia as of September 2026 and tracks 24,356 professional contacts across them, including 9,064 with verified work emails. Sydney is the largest hub.

This list covers civil contractors specializing in water 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

1,192Companies

24,356Contacts tracked

9,064Verified emails

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The 25 largest civil contractors specializing in water based in Australia

Ranked by team size

Top 25 of 1,192 civil contractors specializing in water 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 contractors specializing in water: 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	SRG Global	Indirect evidence	Perth, AustraliaHQ checked Sep 16, 2026	1,001-5,000	2,289 contacts →
	Indirect evidence “SRG Global is a diversified infrastructure services company.” Source: RevenueBase Database · checked Sep 16, 2026
2	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
3	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
4	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
5	AVENG	Indirect evidence	Richmond, AustraliaHQ checked Sep 16, 2026	5,001-10,000	521 contacts →
	Indirect evidence “For more than 125 years, Aveng has evolved in character, capacity and reach and continues to make its mark across the globe.” Source: RevenueBase Database · checked Sep 16, 2026
6	Nacap PTY LTD	Partial evidence	Doncaster, AustraliaHQ checked Sep 16, 2026	201-500	441 contacts →
	Partial 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
7	Shadforth	Indirect evidence	Forest Glen, AustraliaHQ checked Sep 16, 2026	501-1,000	388 contacts →
	Indirect evidence “Shadforth continues to grow based on our reputation of “delivering quality infrastructure sooner”.” Source: RevenueBase Database · checked Sep 16, 2026
8	Iplex Pipelines	Partial evidence	North Sydney, AustraliaHQ checked Sep 16, 2026	501-1,000	373 contacts →
	Partial evidence “With over 85 years’ experience, Iplex has an excellent understanding of the challenges the water industry faces.” Source: RevenueBase Database · checked Sep 16, 2026
9	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
10	Delivering 4 Customers D4c	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	501-1,000	256 contacts →
	Partial evidence “Sydney Water has partnered with Delivering 4 Customers (D4C) to deliver the design, construction, maintenance and facilities management services in their Southern region of Sydney.” Source: RevenueBase Database · checked Sep 16, 2026
11	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
12	Trility	Partial evidence	Adelaide, AustraliaHQ checked Sep 16, 2026	201-500	217 contacts →
	Partial evidence “Company Overview: TRILITY is an established industry leader, dedicated in the delivery of water, wastewater, reuse and bio-solids solutions across Australia and New Zealand’s…” Source: RevenueBase Database · checked Sep 16, 2026
13	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
14	Pensar	Indirect evidence	Hamilton, AustraliaHQ checked Sep 16, 2026	201-500	198 contacts →
	Indirect 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
15	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
16	Shamrock Civil Engineering	Partial evidence	Brisbane, AustraliaHQ checked Sep 16, 2026	51-200	185 contacts →
	Partial 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
17	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
18	Aquatec	Partial evidence	Shepparton, AustraliaHQ checked Sep 16, 2026	51-200	177 contacts →
	Partial evidence “Aquatec partners with Government, business and residential clients to deliver water, wastewater and odour control solutions for the long-term.” Source: RevenueBase Database · checked Sep 16, 2026
19	Mccosker Contracting PTY LTD	Partial evidence	Gladstone, AustraliaHQ checked Sep 16, 2026	201-500	163 contacts →
	Partial evidence “McCosker have extensive experience delivering integrated civil construction projects, with expertise and vast experience in all aspects of bulk and detailed earthworks, structural…” Source: RevenueBase Database · checked Sep 16, 2026
20	Wormall Civil PTY LTD	Partial evidence	Cardup, AustraliaHQ checked Sep 16, 2026	201-500	162 contacts →
	Partial evidence “Wormall Contracting commenced operations in 1984, primarily as a specialist underground services installation contractor in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 16, 2026
21	Catalpa Group	Partial evidence	Osborne Park, AustraliaHQ checked Sep 16, 2026	201-500	142 contacts →
	Partial evidence “Catalpa Group, established in 2009, has firmly cemented itself as one of the most well-known and respected civil, concrete and groundworks companies within the resources, energy…” Source: RevenueBase Database · checked Sep 16, 2026
22	Guidera O'connor	Partial evidence	Thebarton, AustraliaHQ checked Sep 16, 2026	51-200	137 contacts →
	Partial evidence “Guidera O'Connor (GO) is an Australian privately owned company operating only within the Water Industry and specialising in the delivery of water/wastewater treatment and pumping…” Source: RevenueBase Database · checked Sep 16, 2026
23	Planet Plumbing Group	Indirect evidence	Campsie, AustraliaHQ checked Sep 16, 2026	201-500	135 contacts →
	Indirect evidence “Planet Plumbing is an Australian-owned private company with various projects completed throughout Australia.” Source: RevenueBase Database · checked Sep 16, 2026
24	Ward Civil & Environmental Engineering	Strong evidence	Lane Cove West, AustraliaHQ checked Sep 16, 2026	51-200	134 contacts →
	Strong evidence “Founded by the late Peter Ward in 1973, WARD is a multi-disciplined and full-service civil and environmental engineering contractor.” Source: RevenueBase Database · checked Sep 16, 2026
25	LEED	Indirect evidence	Kent Town, AustraliaHQ checked Sep 16, 2026	201-500	133 contacts →
	Indirect evidence “Leed is a dynamic, award-winning, privately-owned multi-disciplinary engineering and construction company, specialising in complex infrastructure projects.” 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 contractors specializing in water. 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 contractors specializing in water.
Partial evidence: Its own public description names part of civil contractors specializing in water, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name civil contractors specializing in water. 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 1,192 civil contractors specializing in water based in Australia

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Civil contractors specializing in water based in Australia at a glance

As of Sep 16, 2026

37.2%Verified-email coverage

20.4Average contacts per company

11-50Median size (employees)

6.2%Largest-city concentration · Sydney

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

367

11-50

512

51-200

246

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 1,192 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 contractors specializing in water, 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 contractors specializing in water”. 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 contractors specializing in water), 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 contractors specializing in water, 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, 9,064 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 contractors specializing in water 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 contractors specializing in water, 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 contractors specializing in water are there based in Australia?

RevenueBase identified 1,192 civil contractors specializing in water 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?

SRG Global, headquartered in Perth, tops this list with the largest team on record.

Which city has the most civil contractors specializing in water?

Sydney leads with 74 headquartered companies, followed by Melbourne (50) and Perth (48).

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 9,064 verified decision-maker contacts tracked across these 1,192 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.

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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.