Company lists · Data refreshed September 2026

Top 25 Water companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 355 companies tracked

RevenueBase identified 355 water companies headquartered in Australia as of September 2026 and tracks 26,222 professional contacts across them, including 12,998 with verified work emails. Melbourne is the largest hub.

This list covers water companies 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

355Companies

26,222Contacts tracked

12,998Verified emails

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The 25 largest water companies based in Australia

Ranked by team size

Top 25 of 355 water companies 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 companies: 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	Strong evidence	Leederville, AustraliaHQ checked Sep 19, 2026	1,001-5,000	3,828 contacts →
	Strong 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 19, 2026
2	Sydney Water	Strong evidence	Parramatta, AustraliaHQ checked Sep 19, 2026	1,001-5,000	3,609 contacts →
	Strong evidence “We deliver essential and sustainable water services for the benefit of the community.” Source: RevenueBase Database · checked Sep 19, 2026
3	Veolia Australia & NEW Zealand	Strong evidence	Pyrmont, AustraliaHQ checked Sep 19, 2026	5,001-10,000	2,476 contacts →
	Strong 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 19, 2026
4	SA Water	Strong evidence	Adelaide, AustraliaHQ checked Sep 19, 2026	1,001-5,000	1,997 contacts →
	Strong 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 19, 2026
5	Urban Utilities	Strong evidence	Fortitude Valley, AustraliaHQ checked Sep 19, 2026	1,001-5,000	1,064 contacts →
	Strong 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
6	South East Water	Strong evidence	Frankston, AustraliaHQ checked Sep 19, 2026	501-1,000	973 contacts →
	Strong evidence “At South East Water, we deliver healthy water for life.” Source: RevenueBase Database · checked Sep 19, 2026
7	Waternsw	Strong evidence	Sydney, AustraliaHQ checked Sep 19, 2026	501-1,000	827 contacts →
	Strong evidence “At WaterNSW we are custodians of the state’s water, a vital natural resource.” Source: RevenueBase Database · checked Sep 19, 2026
8	Yarra Valley Water	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 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 19, 2026
9	Power And Water Corporation	Strong evidence	Darwin, AustraliaHQ checked Sep 19, 2026	501-1,000	812 contacts →
	Strong 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 19, 2026
10	Greater Western Water	Strong evidence	Footscray, AustraliaHQ checked Sep 19, 2026	501-1,000	712 contacts →
	Strong 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 19, 2026
11	Sunwater	Strong evidence	Fortitude Valley, AustraliaHQ checked Sep 19, 2026	501-1,000	649 contacts →
	Strong 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
12	Taswater	Strong evidence	Hobart, AustraliaHQ checked Sep 19, 2026	501-1,000	470 contacts →
	Strong evidence “We are sustainably delivering exceptional water and sewerage services for a thriving Tasmania.” Source: RevenueBase Database · checked Sep 19, 2026
13	Hunter Water	Strong evidence	Newcastle, AustraliaHQ checked Sep 19, 2026	501-1,000	423 contacts →
	Strong 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 19, 2026
14	Iplex Pipelines	Strong evidence	North Sydney, AustraliaHQ checked Sep 19, 2026	501-1,000	373 contacts →
	Strong 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
15	Icon Water	Strong evidence	Canberra, AustraliaHQ checked Sep 19, 2026	201-500	319 contacts →
	Strong 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 19, 2026
16	Gippsland Water	Strong evidence	Traralgon, AustraliaHQ checked Sep 19, 2026	201-500	265 contacts →
	Strong evidence “We provide water and sewerage services to around people in Gippsland.” Source: RevenueBase Database · checked Sep 19, 2026
17	Delivering 4 Customers D4c	Strong evidence	Sydney, AustraliaHQ checked Sep 19, 2026	501-1,000	256 contacts →
	Strong 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 19, 2026
18	Hydrochem	Strong evidence	Braeside, AustraliaHQ checked Sep 19, 2026	201-500	255 contacts →
	Strong evidence “HydroChem is one of Australia’s leading companies providing high quality water treatment services.” Source: RevenueBase Database · checked Sep 19, 2026
19	Coliban Water	Strong evidence	Bendigo, AustraliaHQ checked Sep 19, 2026	51-200	247 contacts →
	Strong 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 19, 2026
20	Trility	Strong evidence	Adelaide, AustraliaHQ checked Sep 19, 2026	201-500	217 contacts →
	Strong 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
21	Central Highlands Water	Strong evidence	Wendouree, AustraliaHQ checked Sep 19, 2026	51-200	180 contacts →
	Strong 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 19, 2026
22	Aquatec	Strong evidence	Shepparton, AustraliaHQ checked Sep 19, 2026	51-200	177 contacts →
	Strong 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
23	North East Water	Strong evidence	Wodonga, AustraliaHQ checked Sep 19, 2026	201-500	152 contacts →
	Strong 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 19, 2026
24	Atlan Stormwater	Strong evidence	Sydney Olympic Park, AustraliaHQ checked Sep 19, 2026	201-500	147 contacts →
	Strong 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
25	Allied Pumps	Strong evidence	Canning Vale, AustraliaHQ checked Sep 19, 2026	51-200	142 contacts →
	Strong evidence “With over 30 years specialising and innovation in purpose-built and complete water package pumping and treatment solutions locally, nationally and internationally, it’s our vision…” 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 companies. 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 companies.
Partial evidence: Its own public description names part of water companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water companies. 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 355 water companies based in Australia

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Water companies based in Australia at a glance

As of Sep 19, 2026

49.6%Verified-email coverage

73.9Average contacts per company

11-50Median size (employees)

4.8%Largest-city concentration · Melbourne

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

147

11-50

112

51-200

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 355 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 companies, 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 companies”. 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 companies), 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 companies, 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, 12,998 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 companies, 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 companies are there based in Australia?

RevenueBase identified 355 water companies 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 companies?

Melbourne leads with 17 headquartered companies, followed by Sydney (14) 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 12,998 verified decision-maker contacts tracked across these 355 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.