Company lists · Data refreshed November 2026

Top 25 Wastewater engineering consultants based in Australia

RevenueBase identified 546 company matches for wastewater engineering consultants associated with Australia as of November 2026 and tracks 8,891 professional contacts across them, including 4,874 with verified work emails. Sydney is the largest hub.

This list covers company matches for wastewater engineering consultants 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
546Companies
8,891Contacts tracked
4,874Verified emails
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The 25 largest wastewater engineering consultants based in Australia

Ranked by team size
Top 25 of 546 company matches for wastewater engineering consultants 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, 2026501-1,000573 contacts →

Exact match

“Fyfe is an Australian professional services firm that delivers value through integrated engineering, environmental, planning and surveying services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchUnley, AustraliaHQ recorded Nov 6, 2026201-500343 contacts →

Exact match

“A highly experienced, multidisciplinary engineering and management firm, GPA has consulted and provided engineering, procurement and construction management (EPCM) services, since…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHobart, AustraliaHQ recorded Nov 6, 2026201-500286 contacts →

Exact match

“Entura is one of the world’s most experienced specialist power and water consulting firms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMacquarie Park, AustraliaHQ recorded Nov 6, 2026201-500265 contacts →

Exact match

“Enviropacific is committed to working towards creating safer environments and sustainable communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAdelaide, AustraliaHQ recorded Nov 6, 2026201-500247 contacts →

Exact match

“Tonkin is a leading provider of engineering, environmental and consultancy services to private and public organisations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMordialloc, AustraliaHQ recorded Nov 6, 2026201-500239 contacts →

Exact match

“ATC Williams is a consulting engineering company specialising in providing custom solutions for tailings, water, waste, and resource recovery projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact 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
9Exact 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
10Exact matchBrisbane, AustraliaHQ recorded Nov 6, 2026201-500162 contacts →

Exact match

“Now a part of the Egis Group, Engeny provides a wide range of specialist engineering and environmental consultancy services across disciplines.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchLane Cove West, AustraliaHQ recorded Nov 6, 202651-200143 contacts →

Exact match

“Founded by the late Peter Ward in 1973, WARD is a multi-disciplined and full-service civil and environmental engineering contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSouth East Queensland, AustraliaHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“At Burchills, we believe the best outcomes come from putting people first, starting with our own team.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLeederville, AustraliaHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“Talis Consultants is now operating throughout Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWulkuraka, AustraliaHQ recorded Nov 6, 2026201-500106 contacts →

Exact match

“Aquatec Maxcon is a leading provider of water and wastewater technology and solutions in Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact 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
17Exact 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
18Exact matchBrisbane City, AustraliaHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Premise is now part of Amey and operates as Amey Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMayfield West, AustraliaHQ recorded Nov 6, 202651-20093 contacts →

Exact match

“Beca HunterH2O is a diverse, empowered, and trusted team of 300+ water specialists, passionate about healthy and sustainable communities wherever we work.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchFortitude Valley, AustraliaHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“With offices in Brisbane and Sydney, Bligh Tanner is a structural, façade, civil, environmental and water engineering consultancy distinguished by its high level of expertise…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact 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
22Exact 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
23Exact matchFortitude Valley, AustraliaHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Witthoft Engineering Pty Ltd is an engineering consultancy company based in Brisbane, Australia, which specialises in electrical, instrumentation, industrial control system…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSydney, AustraliaHQ recorded Nov 6, 20261,001-5,00069 contacts →

Exact match

“Geosyntec is a consulting and engineering firm that works with private and public-sector clients to address their new ventures, complex problems, and vital studies involving our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSouthport, AustraliaHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Westera is a highly respected consulting engineering firm practicing Australia wide in the disciplines of civil, structural and environmental engineering”

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

Showing 25 of 546 wastewater engineering consultants based in Australia

See the full list, filter by size, metro and specialty, and access 4,874 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wastewater engineering consultants based in Australia at a glance

As of Nov 6, 2026
54.8%Verified-email coverage
16.3Average contacts per company
1-10Median size (employees)
9.0%Largest-city concentration · Sydney
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
305
11-50
166
51-200
44
201-500
14
501-1,000
4
1,001-5,000
1
10001+
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 546 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 engineering consultants” 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 4,874 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 engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater engineering consultants are there based in Australia?

RevenueBase identified 546 company matches for wastewater engineering consultants 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?

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

Which city has the most wastewater engineering consultants?

Sydney leads with 49 company records, followed by Melbourne (29) and Brisbane (19).

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 4,874 professional contacts with verified work emails tracked across these 546 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.