Company lists · Data refreshed November 2026

Top 25 Wastewater system contractors based in Australia

RevenueBase identified 139 company matches for wastewater system contractors associated with Australia as of November 2026 and tracks 2,594 professional contacts across them, including 1,433 with verified work emails. Sydney is the largest hub.

This list covers company matches for wastewater system contractors associated with Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
139Companies
2,594Contacts tracked
1,433Verified emails
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The 25 largest wastewater system contractors based in Australia

Ranked by team size
Top 25 of 139 company matches for wastewater system contractors based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAdelaide, AustraliaHQ recorded Nov 6, 2026201-500237 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchVictoria, AustraliaHQ recorded Nov 6, 2026501-1,000193 contacts →

Exact match

“TDG environmental is a proudly Australian-owned company operating throughout Australia and New Zealand.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDerrimut, AustraliaHQ recorded Nov 6, 2026201-500181 contacts →

Exact match

“NPE is a trusted partner to Australia’s leading mining, heavy industry, and oil & gas companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchShepparton, AustraliaHQ recorded Nov 6, 202651-200177 contacts →

Exact match

“Aquatec partners with Government, business and residential clients to deliver water, wastewater and odour control solutions for the long-term.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSydney Olympic Park, AustraliaHQ recorded Nov 6, 2026201-500171 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchThebarton, AustraliaHQ recorded Nov 6, 202651-200146 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSydney, AustraliaHQ recorded Nov 6, 202651-200102 contacts →

Exact match

“Hydroflux brings together engineering, technology and sustainability expertise to solve complex water and wastewater challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMulgrave, AustraliaHQ recorded Nov 6, 202651-20098 contacts →

Exact match

“CMP Consulting Group is a multi-disciplinary Engineering firm specialising in design, project management and construction phase services for the Water Industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPerth, AustraliaHQ recorded Nov 6, 2026201-50079 contacts →

Exact match

“PPS Water Group is a proudly Australian company delivering turnkey water infrastructure solutions to the resource sector and beyond.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMalaga, AustraliaHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“At MAK Water, we help clients achieve reliable, cost-effective and sustainable water, wastewater and sewage treatment solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMulgrave, AustraliaHQ recorded Nov 6, 2026501-1,00067 contacts →

Exact match

“In 2025, Aqua Metro was acquired by Saunders (ASX:SND)- a leading Australian engineering, construction and industrial services company delivering multidisciplinary solutions…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchNorthcote, AustraliaHQ recorded Nov 6, 2026201-50057 contacts →

Exact match

“Established in 2009, NPS provides high quality, safety-first plumbing maintenance and civil works for water and sewage to government and commercial customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchNorth Sydney, AustraliaHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“Atlas, now part of the Sequana Group, has been specialising in brownfield water & wastewater programs and projects from day one.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchTaren Point, AustraliaHQ recorded Nov 6, 202611-5042 contacts →

Exact match

“Aerofloat is a design & construct business that specialises in industrial wastewater treatment and sewage treatment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchKunda Park, AustraliaHQ recorded Nov 6, 202651-20033 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMolendinar, AustraliaHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchTonsley, AustraliaHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Global Water partners with municipalities, engineers, civil contractors and plumbers to engineer and deliver world-class potable water, wastewater and stormwater collection…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWetherill Park, AustraliaHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“ACO Halgan Pty Ltd, specialises in all aspects of wastewater treatment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSunshine North, AustraliaHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Bell Environmental is an Australian owned family business with over 45 years experience initially providing service to the Water and Wastewater Industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchGeelong, AustraliaHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBrendale, AustraliaHQ recorded Nov 6, 20261,001-5,00023 contacts →

Exact match

“EJ is the global leader in the design, manufacture, and distribution of access solutions for the world’s growing infrastructure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMilsons Point, AustraliaHQ recorded Nov 6, 202611-5018 contacts →

Exact match

“At Aquacell, we don't think we should waste water, so we take the waste out of wastewater.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMelbourne, AustraliaHQ recorded Nov 6, 202651-20017 contacts →

Exact match

“ASG is a leading provider of Civil Construction, Infrastructure Management & Environmental Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHenley Brook, AustraliaHQ recorded Nov 6, 20261-1017 contacts →

Exact match

“BD Water is aiming to take care of the whole service for any job in the water space, to make water simple.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchEagle Farm, AustraliaHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 139 wastewater system contractors based in Australia

See the full list, filter by size, metro and specialty, and access 1,433 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater system contractors based in Australia at a glance

As of Nov 6, 2026
55.2%Verified-email coverage
18.7Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Sydney
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
56
11-50
51
51-200
19
201-500
7
501-1,000
2
1,001-5,000
1

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 139 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Australia whose business descriptions match “wastewater system contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,433 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “wastewater system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater system contractors are there based in Australia?

RevenueBase identified 139 company matches for wastewater system contractors associated with Australia as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Trility tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wastewater system contractors?

Sydney leads with 6 company records, followed by Perth (4) and Brisbane (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,433 professional contacts with verified work emails tracked across these 139 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.