Company lists · Data refreshed September 2026

Top 25 Water treatment companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 7, 2026 212 companies tracked

RevenueBase identified 212 water treatment companies headquartered in Australia as of September 2026 and tracks 2,571 professional contacts across them, including 1,042 with verified work emails and 158 with mobile numbers. Perth is the largest hub.

This list covers water treatment 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 7, 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 7, 2026 86% judged on-target in blind review

212Companies

2,571Contacts tracked

1,042Verified emails

158Mobile numbers

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The 25 largest water treatment companies based in Australia

Ranked by team size

Top 25 of 212 water treatment companies based in Australia, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to water treatment 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	Hydrochem	Strong evidence	Braeside, AustraliaHQ checked Sep 7, 2026	201-500	255 contacts →
	“HydroChem is one of Australia’s leading companies providing high quality water treatment services.” Source: company website · checked Sep 7, 2026
2	Atlan Stormwater	Strong evidence	Sydney Olympic Park, AustraliaHQ checked Sep 7, 2026	201-500	147 contacts →
	“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: company website · checked Sep 7, 2026
3	Allied Pumps	Strong evidence	Canning Vale, AustraliaHQ checked Sep 7, 2026	51-200	142 contacts →
	“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: company website · checked Sep 7, 2026
4	Integra Water Treatment Solutions	Strong evidence	Miranda, AustraliaHQ checked Sep 7, 2026	51-200	119 contacts →
	“Established in 1990, Integra Water Treatment Solutions is one of Australia’s largest privately owned and operated water treatment providers.” Source: company website · checked Sep 7, 2026
5	BILLI	Partial evidence	Thomastown, AustraliaHQ checked Sep 7, 2026	51-200	104 contacts →
	“At Billi, we design and manufacture a range of energy efficient filtered water systems that offer our customers the very best in innovation, superior performance and reliability.” Source: company website · checked Sep 7, 2026
6	Hydroflux PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 7, 2026	51-200	95 contacts →
	“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: company website · checked Sep 7, 2026
7	PPS Group	Partial evidence	Perth, AustraliaHQ checked Sep 7, 2026	201-500	81 contacts →
	“PPS Water Group is a proudly Australian company delivering turnkey water infrastructure solutions to the resource sector and beyond.” Source: company website · checked Sep 7, 2026
8	Water Treatment Services Australia	Strong evidence	Townsville, AustraliaHQ checked Sep 7, 2026	11-50	80 contacts →
	“Water Treatment Services solves complex water problems using intelligent technologies and a whole-of-system approach to make water fit for use, reuse and release.” Source: company website · checked Sep 7, 2026
9	Scidev	Partial evidence	Seven Hills, AustraliaHQ checked Sep 7, 2026	51-200	78 contacts →
	“Our solutions allow our clients to recycle and reuse water, improve operational efficiencies and reduce their environmental footprints.” Source: company website · checked Sep 7, 2026
10	MAK Water	Strong evidence	Malaga, AustraliaHQ checked Sep 7, 2026	51-200	69 contacts →
	“At MAK Water, we help clients achieve reliable, cost-effective and sustainable water, wastewater and sewage treatment solutions.” Source: company website · checked Sep 7, 2026
11	Protex Water	Partial evidence	Corio, AustraliaHQ checked Sep 7, 2026	51-200	65 contacts →
	“Born from a 35-year heritage in the water industry, Protex Water is the new name for AKS Industries, effective 1st July 2024.” Source: company website · checked Sep 7, 2026
12	Hydro Flow Australia	Strong evidence	Noble Park North, AustraliaHQ checked Sep 7, 2026	51-200	49 contacts →
	“Manufacturer and supplier of water treatment chemicals, equipment and support services.” Source: company website · checked Sep 7, 2026
13	Amiad Water Systems	Partial evidence	Melbourne, AustraliaHQ checked Sep 7, 2026	11-50	46 contacts →
	“Amiad Water Systems has operated in Australia & New Zealand since 1979 and is a fully owned subsidiary of Amiad.” Source: company website · checked Sep 7, 2026
14	Southland Filtration PTY LTD	Partial evidence	Prestons, AustraliaHQ checked Sep 7, 2026	11-50	37 contacts →
	“Southland Filtration is an Australian-owned B2B company delivering high purity water systems and water filtration solutions to healthcare, commercial and industrial clients since…” Source: company website · checked Sep 7, 2026
15	Aqseptence Group Australia	Partial evidence	Geebung, AustraliaHQ checked Sep 7, 2026	1,001-5,000	31 contacts →
	“Aqseptence Group is a global specialist for water and wastewater management, screening and filtration technologies for separating solids from liquids and gases, as well as vacuum…” Source: company website · checked Sep 7, 2026
16	Ozzi Kleen	Indirect evidence	Kunda Park, AustraliaHQ checked Sep 7, 2026	51-200	31 contacts →
	“As the team behind the Ozzi Kleen product range, we strive to engineer, produce and maintain the highest level of quality not only for the pride we take in delivering reliable…” Source: company website · checked Sep 7, 2026
17	Oleology	Strong evidence	Henderson, AustraliaHQ checked Sep 7, 2026	11-50	29 contacts →
	“OLEOLOGY is the name in water treatment, that offers effective, economically viable and market leading oil and hydrocarbon removal solutions.” Source: company website · checked Sep 7, 2026
18	BHF Technologies	Partial evidence	Oakleigh, AustraliaHQ checked Sep 7, 2026	11-50	27 contacts →
	“Australasia’s leading filtration specialist, BHF Technologies supplies filtration products and designs, fabricates, installs and services liquid, gas and water purification…” Source: company website · checked Sep 7, 2026
19	ACO Halgan PTY LTD	Partial evidence	Wetherill Park, AustraliaHQ checked Sep 7, 2026	51-200	26 contacts →
	“ACO Halgan Pty Ltd, specialises in all aspects of wastewater treatment.” Source: company website · checked Sep 7, 2026
20	SAS Water Solutions	Strong evidence	Castle Hill Nsw, AustraliaHQ checked Sep 7, 2026	11-50	22 contacts →
	“SAS Water provides unique customised solutions for treatment of Process & Potable water, Sewerage & Recycled water, Storm water harvesting, landfill Leachate, Sewer mining…” Source: company website · checked Sep 7, 2026
21	LC Water	Strong evidence	Geelong, AustraliaHQ checked Sep 7, 2026	11-50	21 contacts →
	“LC Water is a process engineering team of experts specialising in the design and construction of water and wastewater treatment facilities in Australia and the subcontinent, with…” Source: company website · checked Sep 7, 2026
22	Integrated Water Management	Strong evidence	Salisbury, AustraliaHQ checked Sep 7, 2026	11-50	17 contacts →
	“Integrated Water Management (iH2OM) was established in 2011 and operates across Australia with a vision for providing outstanding value for clients with innovative water treatment…” Source: company website · checked Sep 7, 2026
23	Aquacell PTY LTD	Partial evidence	Milsons Point, AustraliaHQ checked Sep 7, 2026	11-50	16 contacts →
	“At Aquacell, we don't think we should waste water, so we take the waste out of wastewater.” Source: company website · checked Sep 7, 2026
24	Parkway Process Solutions	Strong evidence	Sunshine North, AustraliaHQ checked Sep 7, 2026	51-200	16 contacts →
	“Parkway Process Solutions (PPS) is a leading provider of industrial and innovative water treatment related, products, services, solutions & technology across Australia, with…” Source: company website · checked Sep 7, 2026
25	Moerk Water	Strong evidence	O'connor, AustraliaHQ checked Sep 7, 2026	11-50	14 contacts →
	“Moerk Water designs and constructs water treatment systems and provides consultancy and training to create robust sustainable water solutions for long-term water needs.” Source: company website · checked Sep 7, 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 treatment 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 treatment companies.
Partial evidence: Its own public description names part of water treatment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water treatment 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 212 water treatment companies based in Australia

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Water treatment companies based in Australia at a glance

As of Sep 7, 2026

40.5%Verified-email coverage

6.1%Mobile-number coverage

12.1Average contacts per company

1-10Median size (employees)

7.1%Largest-city concentration · Perth

Sep 7, 2026Page data refreshed

Companies by employee count

1-10

105

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

9550–30

8231–60

161–90

090–180

4180+

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 treatment 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 treatment 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 treatment 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 treatment 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, 1,042 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 7, 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 treatment 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 treatment companies are there based in Australia?

RevenueBase identified 212 water treatment 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?

Hydrochem, headquartered in Braeside, tops this list with the largest team on record.

Which city has the most water treatment companies?

Perth leads with 15 headquartered companies, followed by Melbourne (14) and Sydney (13).

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 1,042 verified decision-maker contacts tracked across these 212 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 7, 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.