Company lists · Data refreshed September 2026

Top 25 Water infrastructure contractors based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 408 companies tracked

RevenueBase identified 408 water infrastructure contractors headquartered in Australia as of September 2026 and tracks 9,502 professional contacts across them, including 5,089 with verified work emails. Sydney is the largest hub.

This list covers water 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 19, 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 19, 2026 86% judged on-target in blind review

408Companies

9,502Contacts tracked

5,089Verified emails

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The 25 largest water infrastructure contractors based in Australia

Ranked by team size

Top 25 of 408 water infrastructure contractors based in Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to water 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	Urban Utilities	Partial evidence	Fortitude Valley, AustraliaHQ checked Sep 19, 2026	1,001-5,000	1,064 contacts →
	Partial evidence “We’re responsible for delivering world-class drinking water and wastewater services to the growing communities of Brisbane, Ipswich, Lockyer Valley, Somerset and Scenic Rim.” Source: RevenueBase Database · checked Sep 19, 2026
2	Seymour Whyte	Strong evidence	Eight Mile Plains, AustraliaHQ checked Sep 19, 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 19, 2026
3	Sunwater	Partial evidence	Fortitude Valley, AustraliaHQ checked Sep 19, 2026	501-1,000	649 contacts →
	Partial evidence “Sunwater is a water solutions and service provider delivering the most essential of resources in regional communities.” Source: RevenueBase Database · checked Sep 19, 2026
4	Abergeldie Complex Infrastructure	Partial evidence	Regents Park, AustraliaHQ checked Sep 19, 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 19, 2026
5	Iplex Pipelines	Partial evidence	North Sydney, AustraliaHQ checked Sep 19, 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 19, 2026
6	Interflow	Indirect evidence	Girraween, AustraliaHQ checked Sep 19, 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 19, 2026
7	Trility	Partial evidence	Adelaide, AustraliaHQ checked Sep 19, 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 19, 2026
8	ACE Contractors Group Pty. LTD	Partial evidence	Nunawading, AustraliaHQ checked Sep 19, 2026	201-500	205 contacts →
	Partial evidence “Ace Contractors Group Pty.” Source: RevenueBase Database · checked Sep 19, 2026
9	Pensar	Partial evidence	Hamilton, AustraliaHQ checked Sep 19, 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 19, 2026
10	Shamrock Civil Engineering	Partial evidence	Brisbane, AustraliaHQ checked Sep 19, 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 19, 2026
11	Aquatec	Partial evidence	Shepparton, AustraliaHQ checked Sep 19, 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 19, 2026
12	Atlan Stormwater	Partial evidence	Sydney Olympic Park, AustraliaHQ checked Sep 19, 2026	201-500	147 contacts →
	Partial evidence “At Atlan Stormwater, we draw on more than 45 years’ experience in the design, testing and manufacture of water treatment systems that are utilised in over 45 countries.” Source: RevenueBase Database · checked Sep 19, 2026
13	Guidera O'connor	Partial evidence	Thebarton, AustraliaHQ checked Sep 19, 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 19, 2026
14	Planet Plumbing Group	Indirect evidence	Campsie, AustraliaHQ checked Sep 19, 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 19, 2026
15	ROB Carr PTY LTD	Partial evidence	Yatala, AustraliaHQ checked Sep 19, 2026	51-200	115 contacts →
	Partial evidence “Rob Carr offers advanced technical capabilities for utilities infrastructure and is recognised as a market leader in microtunnelling and other complex underground works across all…” Source: RevenueBase Database · checked Sep 19, 2026
16	Civil Infrastructure Group	Partial evidence	Campbellfield, AustraliaHQ checked Sep 19, 2026	51-200	99 contacts →
	Partial evidence “Civil Infrastructure Group (CIG) was formed in 2016 to provide specialist construction services to the civil infrastructure industry in Victoria.” Source: RevenueBase Database · checked Sep 19, 2026
17	Hydroflux PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	95 contacts →
	Partial evidence “Water l Science l Technology The Hydroflux Group is a team of water and wastewater treatment experts harnessing the power of world leading research and technologies for a more…” Source: RevenueBase Database · checked Sep 19, 2026
18	CMP Consulting Group	Partial evidence	Mulgrave, AustraliaHQ checked Sep 19, 2026	51-200	94 contacts →
	Partial evidence “CMP Consulting Group is a multi-disciplinary Engineering firm specialising in design, project management and construction phase services for the Water Industry.” Source: RevenueBase Database · checked Sep 19, 2026
19	Hunter H2o	Partial evidence	Mayfield West, AustraliaHQ checked Sep 19, 2026	51-200	93 contacts →
	Partial evidence “Beca HunterH2O is a diverse, empowered, and trusted team of 300+ water specialists, passionate about healthy and sustainable communities wherever we work.” Source: RevenueBase Database · checked Sep 19, 2026
20	JAYDO	Strong evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	51-200	85 contacts →
	Strong evidence “Jaydo is a dedicated water infrastructure construction business where every member of our experienced team is committed to delivering outstanding value and service to our many…” Source: RevenueBase Database · checked Sep 19, 2026
21	PPS Group	Strong evidence	Perth, AustraliaHQ checked Sep 19, 2026	201-500	81 contacts →
	Strong evidence “PPS Water Group is a proudly Australian company delivering turnkey water infrastructure solutions to the resource sector and beyond.” Source: RevenueBase Database · checked Sep 19, 2026
22	Ferrycarrig	Partial evidence	Chullora, AustraliaHQ checked Sep 19, 2026	201-500	80 contacts →
	Partial evidence “Ferrycarrig is a leading constructor of utilities and civil infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
23	Comdain Infrastructure	Partial evidence	Epping, AustraliaHQ checked Sep 19, 2026	501-1,000	80 contacts →
	Partial evidence “Comdain Infrastructure is part of the ASX 300 listed Service Stream group and has a strong reputation for innovative design, construction and maintenance solutions.” Source: RevenueBase Database · checked Sep 19, 2026
24	Eire Constructions	Strong evidence	Sancrox 2446, AustraliaHQ checked Sep 19, 2026	51-200	79 contacts →
	Strong evidence “Founded in 1978, we are water specialists, delivering our expertise into complex projects for the markets of water treatment and water network infrastructure, as well as transport…” Source: RevenueBase Database · checked Sep 19, 2026
25	MAK Water	Partial evidence	Malaga, AustraliaHQ checked Sep 19, 2026	51-200	69 contacts →
	Partial evidence “At MAK Water, we help clients achieve reliable, cost-effective and sustainable water, wastewater and sewage treatment solutions.” Source: RevenueBase Database · checked Sep 19, 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: water 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 water infrastructure contractors.
Partial evidence: Its own public description names part of water infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water 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 408 water infrastructure contractors based in Australia

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Water infrastructure contractors based in Australia at a glance

As of Sep 19, 2026

53.6%Verified-email coverage

23.3Average contacts per company

11-50Median size (employees)

3.9%Largest-city concentration · Sydney

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

137

11-50

163

51-200

201-500

501-1,000

1,001-5,000

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 408 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 water 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 “water 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 water 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 water 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, 5,089 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 19, 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.

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 water 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 water infrastructure contractors are there based in Australia?

RevenueBase identified 408 water 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?

Urban Utilities, headquartered in Fortitude Valley, tops this list with the largest team on record.

Which city has the most water infrastructure contractors?

Sydney leads with 16 headquartered companies, followed by Melbourne (15) and Perth (11).

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 5,089 verified decision-maker contacts tracked across these 408 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 19, 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.