Company lists · Data refreshed October 2026

Top 25 Drainage design contractors based in Australia

RevenueBase identified 327 company matches for drainage design contractors associated with Australia as of October 2026 and tracks 5,881 professional contacts across them, including 2,711 with verified work emails. Sydney is the largest hub.

This list covers company matches for drainage design 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 October 11, 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 Oct 11, 2026 How this list was built
327Companies
5,881Contacts tracked
2,711Verified emails
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The 25 largest drainage design contractors based in Australia

Ranked by team size
Top 25 of 327 company matches for drainage design contractors based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 matchFortitude Valley, AustraliaHQ recorded Oct 11, 20261,001-5,0001,005 contacts →

Exact match

“Cardno is now officially Stantec.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchAdelaide, AustraliaHQ recorded Oct 11, 2026501-1,000558 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 · Oct 11, 2026 · View company records in RevenueBase
3Exact matchGirraween, AustraliaHQ recorded Oct 11, 2026501-1,000370 contacts →

Exact match

“A name synonymous with ‘challenging the status quo’, we have the heart of a humble business, with the vision of something much greater: a vision that drives the growth of our…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4Exact matchAdelaide, AustraliaHQ recorded Oct 11, 2026201-500231 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 · Oct 11, 2026 · View company records in RevenueBase
5Exact matchHamilton, AustraliaHQ recorded Oct 11, 2026201-500199 contacts →

Exact match

“We offer insightful, original design thinking, implemented by a team with proven expertise to deliver flexible fit-for-purpose critical infrastructure solutions.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchShepparton, AustraliaHQ recorded Oct 11, 202651-200169 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 · Oct 11, 2026 · View company records in RevenueBase
7Exact matchSydney Olympic Park, AustraliaHQ recorded Oct 11, 2026201-500168 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 · Oct 11, 2026 · View company records in RevenueBase
8Exact matchEpping, AustraliaHQ recorded Oct 11, 2026501-1,000108 contacts →

Exact match

“Comdain Infrastructure is part of the ASX 300 listed Service Stream group and has a strong reputation for innovative design, construction and maintenance solutions.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchMulgrave, AustraliaHQ recorded Oct 11, 202651-20095 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 · Oct 11, 2026 · View company records in RevenueBase
10Exact matchGeebung, AustraliaHQ recorded Oct 11, 2026201-50092 contacts →

Exact match

“Everhard is a proudly Australian manufacturer and wholesaler, with more than 100 years of experience delivering innovative, sustainable water and drainage solutions that support…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11Exact matchMayfield West, AustraliaHQ recorded Oct 11, 202651-20091 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 · Oct 11, 2026 · View company records in RevenueBase
12Exact matchFortitude Valley, AustraliaHQ recorded Oct 11, 202651-20083 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 · Oct 11, 2026 · View company records in RevenueBase
13Exact matchMelbourne, AustraliaHQ recorded Oct 11, 202651-20080 contacts →

Exact match

“Jaydo is a dedicated water infrastructure construction business where every member of our experienced team is committed to delivering outstanding value and service to our many…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchMalaga, AustraliaHQ recorded Oct 11, 202651-20078 contacts →

Exact match

“Coerco is an Australian-owned leader in liquid management solutions across agriculture, commercial, and resource sectors.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchSydney, AustraliaHQ recorded Oct 11, 202651-20076 contacts →

Exact match

“Turnbull is a select team of highly motivated engineering professionals specialising in the design of civil infrastructure, including transport, energy and water and mining assets.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchPerth, AustraliaHQ recorded Oct 11, 2026201-50074 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 · Oct 11, 2026 · View company records in RevenueBase
17Exact matchAltona North, AustraliaHQ recorded Oct 11, 2026201-50074 contacts →

Exact match

“Proudly Australian, family owned and run, Rangedale prides itself on being an industry leader offering innovative 360-degree drainage and infrastructure solutions.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchMulgrave, AustraliaHQ recorded Oct 11, 202651-20065 contacts →

Exact match

“Regal Innovations has been creating iconic public spaces by transforming the ordinary into extraordinary for over 50 years.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchNorlane, AustraliaHQ recorded Oct 11, 202651-20063 contacts →

Exact match

“For over 100 years, Brockman Engineering has delivered critical infrastructure across Australia.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchMulgrave, AustraliaHQ recorded Oct 11, 2026501-1,00060 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 · Oct 11, 2026 · View company records in RevenueBase
21Exact matchBendigo, AustraliaHQ recorded Oct 11, 202611-5055 contacts →

Exact match

“Helping transport, building, property and water teams create smarter, safer and stronger projects that make communities better places to live.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchNorth Sydney, AustraliaHQ recorded Oct 11, 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 · Oct 11, 2026 · View company records in RevenueBase
23Exact matchEmu Plains, AustraliaHQ recorded Oct 11, 202651-20051 contacts →

Exact match

“ACO Australia is headquartered at its manufacturing facility in Emu Plains, NSW and has offices and distribution outlets throughout Australia, South East Asia and the South…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchBrisbane City, AustraliaHQ recorded Oct 11, 202611-5045 contacts →

Exact match

“WRM Water & Environment is a world-class consultancy specialising in flooding, water resource engineering and water management.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchMilton, AustraliaHQ recorded Oct 11, 202611-5039 contacts →

Exact match

“Phronis Consulting exists to inspire the delivery of world changing infrastructure.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 327 drainage design contractors based in Australia

See the full list, filter by size, metro and specialty, and access 2,711 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drainage design contractors based in Australia at a glance

As of Oct 11, 2026
46.1%Verified-email coverage
18.0Average contacts per company
11-50Median size (employees)
7.6%Largest-city concentration · Sydney
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
149
11-50
130
51-200
30
201-500
9
501-1,000
4
1,001-5,000
2

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 327 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 “drainage design 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 2,711 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 October 11, 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.

Drainage design contractors by metro

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 “drainage design contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many drainage design contractors are there based in Australia?

RevenueBase identified 327 company matches for drainage design contractors associated with Australia as of October 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?

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

Which city has the most drainage design contractors?

Sydney leads with 25 company records, followed by Melbourne (23) and Brisbane (11).

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 2,711 professional contacts with verified work emails tracked across these 327 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 October 11, 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.