Company lists · Data refreshed September 2026

Top 25 Water utility contractors based in Australia

Name: Water utility 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 149 companies tracked

RevenueBase identified 149 water utility contractors headquartered in Australia as of September 2026 and tracks 2,264 professional contacts across them, including 1,124 with verified work emails. Sydney is the largest hub.

This list covers water utility 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

149Companies

2,264Contacts tracked

1,124Verified emails

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The 25 largest water utility contractors based in Australia

Ranked by team size

Top 25 of 149 water utility 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 utility 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	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
2	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
3	Grampians Wimmera Mallee Water	Partial evidence	Horsham, AustraliaHQ checked Sep 19, 2026	51-200	122 contacts →
	Partial evidence “Grampians Wimmera Mallee Water (GWMWater) is an innovative and exciting employer that is committed to contributing to the sustainable growth of communities within our region.” Source: RevenueBase Database · checked Sep 19, 2026
4	JAYDO	Partial evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	51-200	85 contacts →
	Partial 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
5	PPS Group	Partial evidence	Perth, AustraliaHQ checked Sep 19, 2026	201-500	81 contacts →
	Partial 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
6	Vaughan Civil PTY LTD	Indirect evidence	Bondi Junction, AustraliaHQ checked Sep 19, 2026	51-200	75 contacts →
	Indirect evidence “Vaughan Civil provides our clients with innovative and cost effective solutions from the design stage through to the delivery phase a commissioning and close out of a project.” Source: RevenueBase Database · checked Sep 19, 2026
7	Saunders Aqua Metro	Indirect evidence	Mulgrave, AustraliaHQ checked Sep 19, 2026	501-1,000	62 contacts →
	Indirect evidence “In 2025, Aqua Metro was acquired by Saunders (ASX:SND)- a leading Australian engineering, construction and industrial services company delivering multidisciplinary solutions…” Source: RevenueBase Database · checked Sep 19, 2026
8	Detection Services	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	60 contacts →
	Partial evidence “Detection Services specialises in multi discipline pipeline solutions and state of the art technologies covering the water and wastewater industries.” Source: RevenueBase Database · checked Sep 19, 2026
9	NEW Plumbing Solutions	Partial evidence	Northcote, AustraliaHQ checked Sep 19, 2026	201-500	51 contacts →
	Partial evidence “Established in 2009, NPS provides high quality, safety-first plumbing maintenance and civil works for water and sewage to government and commercial customers.” Source: RevenueBase Database · checked Sep 19, 2026
10	Road And Rail Excavations PTY LTD	Strong evidence	Campbelltown, AustraliaHQ checked Sep 19, 2026	51-200	41 contacts →
	Strong evidence “ASP1 and Sydney Water accredited utility infrastructure construction company, working primarily on the Ausgrid, Endeavour, and Essential electrical networks and Sydney water…” Source: RevenueBase Database · checked Sep 19, 2026
11	Saltire Infrastructure	Partial evidence	O'connor, AustraliaHQ checked Sep 19, 2026	51-200	36 contacts →
	Partial evidence “Saltire is a water industry focused engineered services provider specialise in system continuity that undertakes pipeline construction, repair, and maintenance works.” Source: RevenueBase Database · checked Sep 19, 2026
12	Linbeck Contractors PTY LTD	Partial evidence	Riverstone, AustraliaHQ checked Sep 19, 2026	51-200	27 contacts →
	Partial evidence “Linbeck is a privately owned company providing repairs & maintenance, civil construction and licensed plumbing services to asset owners in the gas and water industry.” Source: RevenueBase Database · checked Sep 19, 2026
13	YVE	Strong evidence	Sunshine West, AustraliaHQ checked Sep 19, 2026	51-200	27 contacts →
	Strong evidence “YVE is a high-performing water, sewer and gas contractor working across Victoria on land development and infrastructure projects.” Source: RevenueBase Database · checked Sep 19, 2026
14	NTS Group PTY LTD	Indirect evidence	Molendinar, AustraliaHQ checked Sep 19, 2026	51-200	26 contacts →
	Indirect evidence “Privately owned and established on the Gold Coast in 2005, NTS Group’s core values of Teamwork, Readiness and Innovation have allowed the company to become one of the leading…” Source: RevenueBase Database · checked Sep 19, 2026
15	H2flow Hire	Partial evidence	Beenleigh, AustraliaHQ checked Sep 19, 2026	11-50	26 contacts →
	Partial evidence “H2flow Hire is South East Queensland's leading water services business, providing innovative water solutions to our clients since 2001.” Source: RevenueBase Database · checked Sep 19, 2026
16	Water Infrastructure Services	Strong evidence	Burpengary East, AustraliaHQ checked Sep 19, 2026	11-50	23 contacts →
	Strong evidence “Water Infrastructure Services (WIS) is a trusted, reliable, and experienced contractor that delivers potable and raw water infrastructure support to QLD utilities and companies.” Source: RevenueBase Database · checked Sep 19, 2026
17	AARO	Indirect evidence	Perth, AustraliaHQ checked Sep 19, 2026	51-200	23 contacts →
	Indirect evidence “Meet Aaro.” Source: RevenueBase Database · checked Sep 19, 2026
18	Global Water	Strong evidence	Tonsley, AustraliaHQ checked Sep 19, 2026	11-50	23 contacts →
	Strong evidence “Global Water partners with municipalities, engineers, civil contractors and plumbers to engineer and deliver world-class potable water, wastewater and stormwater collection…” Source: RevenueBase Database · checked Sep 19, 2026
19	Plumbing & Pipeline Solutions SA PTY LTD	Indirect evidence	Marleston, AustraliaHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “No other company in South Australia offers a range of plumbing and pipeline solutions to match PPS.” Source: RevenueBase Database · checked Sep 19, 2026
20	Fleurieu Civil And Construction	Indirect evidence	Goolwa, AustraliaHQ checked Sep 19, 2026	51-200	19 contacts →
	Indirect evidence “Fleurieu Civil is a family-based company in Goolwa, South Australia with strong ethics and work commitment throughout over 20 years of history.” Source: RevenueBase Database · checked Sep 19, 2026
21	Dormway PTY LTD	Indirect evidence	Wacol, AustraliaHQ checked Sep 19, 2026	51-200	18 contacts →
	Indirect evidence “With over 40 years' experience successfully delivering civil infrastructure and pipeline projects, Dormway's reputation as leaders and problem-solvers is built on an unwavering…” Source: RevenueBase Database · checked Sep 19, 2026
22	Alano Group	Indirect evidence	Adelaide, AustraliaHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Proudly 100% South Australia Owned & Operated.” Source: RevenueBase Database · checked Sep 19, 2026
23	Utilita Water Solutions	Strong evidence	Eagle Farm, AustraliaHQ checked Sep 19, 2026	51-200	15 contacts →
	Strong evidence “Utilita Water Solutions is a joint venture between Ventia and Downer Utilities, delivering services to the water industry across South East Queensland since July 2016.” Source: RevenueBase Database · checked Sep 19, 2026
24	Whyte Civil	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	15 contacts →
	Indirect evidence “Whyte Civil Pty Ltd is a civil construction company based in Sydney, Australia, delivering a comprehensive range of in-ground building services and civil construction along with…” Source: RevenueBase Database · checked Sep 19, 2026
25	DIONA	Strong evidence	North Sydney, AustraliaHQ checked Sep 19, 2026	501-1,000	14 contacts →
	Strong evidence “For over 40 years, Diona has partnered with leading utility owners to keep the water running, lights on and waste managed for Australian communities.” 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 utility 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 utility contractors.
Partial evidence: Its own public description names part of water utility contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water utility 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 149 water utility contractors based in Australia

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Water utility contractors based in Australia at a glance

As of Sep 19, 2026

49.6%Verified-email coverage

15.2Average contacts per company

11-50Median size (employees)

4.7%Largest-city concentration · Sydney

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 149 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 utility 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 utility 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 utility 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 utility 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, 1,124 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 utility 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 utility contractors are there based in Australia?

RevenueBase identified 149 water utility 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?

Interflow, headquartered in Girraween, tops this list with the largest team on record.

Which city has the most water utility contractors?

Sydney leads with 7 headquartered companies, followed by Melbourne (6) and Brisbane (5).

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 1,124 verified decision-maker contacts tracked across these 149 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.