Company lists · Data refreshed September 2026

Top 25 Water utilities based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 177 companies tracked

RevenueBase identified 177 water utilities headquartered in Australia as of September 2026 and tracks 27,203 professional contacts across them, including 13,821 with verified work emails. Melbourne is the largest hub.

This list covers water utilities 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

177Companies

27,203Contacts tracked

13,821Verified emails

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The 25 largest water utilities based in Australia

Ranked by team size

Top 25 of 177 water utilities 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 water utilities: 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	Water Corporation	Partial evidence	Leederville, AustraliaHQ checked Sep 16, 2026	1,001-5,000	3,828 contacts →
	Partial evidence “We’re the principal supplier of water, wastewater and drainage services in Western Australia to hundreds of thousands of homes, businesses and farms, as well as providing bulk…” Source: RevenueBase Database · checked Sep 16, 2026
2	Sydney Water	Partial evidence	Parramatta, AustraliaHQ checked Sep 16, 2026	1,001-5,000	3,609 contacts →
	Partial evidence “We deliver essential and sustainable water services for the benefit of the community.” Source: RevenueBase Database · checked Sep 16, 2026
3	Veolia Australia & NEW Zealand	Partial evidence	Pyrmont, AustraliaHQ checked Sep 16, 2026	5,001-10,000	2,476 contacts →
	Partial evidence “Veolia Australia and New Zealand is a leading provider of environmental solutions across water and wastewater services, industrial cleaning, waste management and resource recovery…” Source: RevenueBase Database · checked Sep 16, 2026
4	SA Water	Partial evidence	Adelaide, AustraliaHQ checked Sep 16, 2026	1,001-5,000	1,997 contacts →
	Partial evidence “We are South Australia’s leading provider of water and sewage services for more than 1.7 million people.” Source: RevenueBase Database · checked Sep 16, 2026
5	Melbourne Water	Partial evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	1,001-5,000	1,434 contacts →
	Partial evidence “In Melbourne, water is essential to our way of life.” Source: RevenueBase Database · checked Sep 16, 2026
6	Urban Utilities	Partial evidence	Fortitude Valley, AustraliaHQ checked Sep 16, 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 16, 2026
7	South East Water	Partial evidence	Frankston, AustraliaHQ checked Sep 16, 2026	501-1,000	973 contacts →
	Partial evidence “At South East Water, we deliver healthy water for life.” Source: RevenueBase Database · checked Sep 16, 2026
8	Waternsw	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	501-1,000	827 contacts →
	Partial evidence “At WaterNSW we are custodians of the state’s water, a vital natural resource.” Source: RevenueBase Database · checked Sep 16, 2026
9	Yarra Valley Water	Indirect evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	501-1,000	821 contacts →
	Indirect evidence “We service 2 million people and businesses across a area, from Wallan in the north to Warburton in the east.” Source: RevenueBase Database · checked Sep 16, 2026
10	Power And Water Corporation	Partial evidence	Darwin, AustraliaHQ checked Sep 16, 2026	501-1,000	812 contacts →
	Partial evidence “Power and Water Corporation is a complex multi-utility with operations spanning the Northern Territory’s 1.3million square kilometres.” Source: RevenueBase Database · checked Sep 16, 2026
11	Greater Western Water	Partial evidence	Footscray, AustraliaHQ checked Sep 16, 2026	501-1,000	712 contacts →
	Partial evidence “Greater Western Water provides water and sanitation services to Melbourne's West from Melbourne's CBD to Lancefield, servicing more than customers across an area of 3,700 square…” Source: RevenueBase Database · checked Sep 16, 2026
12	Unitywater	Partial evidence	Maroochydore, AustraliaHQ checked Sep 16, 2026	501-1,000	691 contacts →
	Partial evidence “Unitywater provides essential water supply and sewage treatment services to residents and businesses in the Moreton Bay, Sunshine Coast and Noosa regions.” Source: RevenueBase Database · checked Sep 16, 2026
13	Sunwater	Partial evidence	Fortitude Valley, AustraliaHQ checked Sep 16, 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 16, 2026
14	Taswater	Partial evidence	Hobart, AustraliaHQ checked Sep 16, 2026	501-1,000	470 contacts →
	Partial evidence “We are sustainably delivering exceptional water and sewerage services for a thriving Tasmania.” Source: RevenueBase Database · checked Sep 16, 2026
15	Hunter Water	Partial evidence	Newcastle, AustraliaHQ checked Sep 16, 2026	501-1,000	423 contacts →
	Partial evidence “Hunter Water is proud of the significant contribution we make to the health, wellbeing and prosperity of our region – creating a sustainable water future for all.” Source: RevenueBase Database · checked Sep 16, 2026
16	Icon Water	Partial evidence	Canberra, AustraliaHQ checked Sep 16, 2026	201-500	319 contacts →
	Partial evidence “We've been supplying Canberra and the region with top quality water and wastewater services for over 100 years.” Source: RevenueBase Database · checked Sep 16, 2026
17	Gippsland Water	Partial evidence	Traralgon, AustraliaHQ checked Sep 16, 2026	201-500	265 contacts →
	Partial evidence “We provide water and sewerage services to around people in Gippsland.” Source: RevenueBase Database · checked Sep 16, 2026
18	Coliban Water	Partial evidence	Bendigo, AustraliaHQ checked Sep 16, 2026	51-200	247 contacts →
	Partial evidence “Coliban Water was established on July 1, 1992 under the Water Act 1989 as a Regional Urban Water Authority.” Source: RevenueBase Database · checked Sep 16, 2026
19	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
20	Wannon Water	Partial evidence	Warrnambool, AustraliaHQ checked Sep 16, 2026	201-500	187 contacts →
	Partial evidence “A healthy region enabled by water Our vision is for a region where people can live well, communities are supported, and economies thrive, with water playing a vital role in…” Source: RevenueBase Database · checked Sep 16, 2026
21	Central Highlands Water	Partial evidence	Wendouree, AustraliaHQ checked Sep 16, 2026	51-200	180 contacts →
	Partial evidence “Central Highlands Water is a regional water corporation that provides high quality drinking water, sewerage, trade waste and recycled water services through 62,763 water supply…” Source: RevenueBase Database · checked Sep 16, 2026
22	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
23	TDG Environmental	Indirect evidence	Victoria, AustraliaHQ checked Sep 16, 2026	501-1,000	176 contacts →
	Indirect evidence “TDG environmental is a proudly Australian-owned company operating throughout Australia and New Zealand.” Source: RevenueBase Database · checked Sep 16, 2026
24	North East Water	Partial evidence	Wodonga, AustraliaHQ checked Sep 16, 2026	201-500	152 contacts →
	Partial evidence “North East Water provides water and sewage services to an estimated population of people in 39 towns in north-east Victoria across an area of square kilometres.” Source: RevenueBase Database · checked Sep 16, 2026
25	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

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 utilities. 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 utilities.
Partial evidence: Its own public description names part of water utilities, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water utilities. 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 177 water utilities based in Australia

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Water utilities based in Australia at a glance

As of Sep 16, 2026

50.8%Verified-email coverage

153.7Average contacts per company

11-50Median size (employees)

6.2%Largest-city concentration · Melbourne

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 177 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 utilities, 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 utilities”. 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 utilities), 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 utilities, 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, 13,821 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.

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 utilities, 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 utilities are there based in Australia?

RevenueBase identified 177 water utilities 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?

Water Corporation, headquartered in Leederville, tops this list with the largest team on record.

Which city has the most water utilities?

Melbourne leads with 11 headquartered companies, followed by Sydney (7) and Perth (6).

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 13,821 verified decision-maker contacts tracked across these 177 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.