Company lists · Data refreshed September 2026

Top 24 Stormwater compliance consulting firms based in Australia

RevenueBase identified 96 stormwater compliance consulting firms headquartered in Australia as of September 2026 and tracks 856 professional contacts across them, including 518 with verified work emails and 51 with mobile numbers. Sydney is the largest hub.

This list covers stormwater compliance consulting firms 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 6, 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 6, 2026 86% judged on-target in blind review
96Companies
856Contacts tracked
518Verified emails
51Mobile numbers
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The 24 largest stormwater compliance consulting firms based in Australia

Ranked by team size
Top 24 of 96 stormwater compliance consulting firms based in Australia, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to stormwater compliance consulting firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceSydney Olympic Park, AustraliaHQ checked Sep 6, 2026201-500147 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 6, 2026
2Indirect evidenceMayfield West, AustraliaHQ checked Sep 6, 202651-20093 contacts →

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

Source: company website · checked Sep 6, 2026
3Indirect evidenceBrisbane City, AustraliaHQ checked Sep 6, 202611-5047 contacts →

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

Source: company website · checked Sep 6, 2026
4Indirect evidenceSilverwater, AustraliaHQ checked Sep 6, 202651-20047 contacts →

“Waterproofing Integrity offers independent third-party design consultation and quality control inspection services for waterproofing systems to ensure the intended performance and…”

Source: company website · checked Sep 6, 2026
5Partial evidenceParramatta, AustraliaHQ checked Sep 6, 202611-5039 contacts →

“Established more than 30-years ago, Sparks+Partners Consulting Engineers has a rich history and expertise in quality engineering.”

Source: company website · checked Sep 6, 2026
6Partial evidenceTennyson, AustraliaHQ checked Sep 6, 202611-5033 contacts →

“Assured Environmental (AE) is a team of experienced and trusted professionals focused on delivering high quality, responsive and practical environmental monitoring and consulting…”

Source: company website · checked Sep 6, 2026
7Partial evidenceShepparton, AustraliaHQ checked Sep 6, 202611-5032 contacts →

“At CAF Consulting, we’re proud to be backed by decades of Engineering and Planning experience.”

Source: company website · checked Sep 6, 2026
8Partial evidencePooraka, AustraliaHQ checked Sep 6, 202611-5025 contacts →

“Urban Asset Solutions Pty Ltd is a progressive company specialising in the design, construction, management and maintenance of stormwater treatment and harvesting infrastructure.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceMelbourne, AustraliaHQ checked Sep 6, 202611-5020 contacts →

“The problems we solve: Industrial water challenges rarely arrive on schedule.”

Source: company website · checked Sep 6, 2026
10Partial evidenceDocklands, AustraliaHQ checked Sep 6, 202611-5019 contacts →

“Streamology was born from the desire to combine research with consulting and a passion for the environment.”

Source: company website · checked Sep 6, 2026
11Partial evidenceGordon, AustraliaHQ checked Sep 6, 202611-5016 contacts →

“Optimal Stormwater specialises in the design and construction of Stormwater Treatment, Stormwater Harvesting, Operation and Maintenance and GPT/SQID auditing.”

Source: company website · checked Sep 6, 2026
12Partial evidenceMelbourne, AustraliaHQ checked Sep 6, 202611-5014 contacts →

“Rain Consulting aims to pursue creative, original approaches for managing water that meet regulatory guidelines, enhance liveability and maximise environmental outcomes.”

Source: company website · checked Sep 6, 2026
13Partial evidenceParramatta, AustraliaHQ checked Sep 6, 202611-5014 contacts →

“Welcome to Modular Engineers Pty Ltd, a leading engineering consulting firm based in Sydney.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceKew East, AustraliaHQ checked Sep 6, 20261-1013 contacts →

“DRC Environmental is underpinned by highly experienced and professional environmental scientists and engineers ready to assist with any project or challenge that may eventuate.”

Source: company website · checked Sep 6, 2026
15Indirect evidenceKingscliff, AustraliaHQ checked Sep 6, 20261-1012 contacts →

“Maximizing the value of Optimatics software requires the experience of specialist users and proven quality assurance procedures.”

Source: company website · checked Sep 6, 2026
16Strong evidenceUpper Ferntree Gully, AustraliaHQ checked Sep 6, 202611-5011 contacts →

“Founded in 2013, Afflux Consulting specialises in providing expert solutions, advice, and knowledge for all areas of stormwater management.”

Source: company website · checked Sep 6, 2026
17Partial evidenceBurleigh Heads, AustraliaHQ checked Sep 6, 202611-5010 contacts →

“Renew Solutions provides independent comprehensive, high quality and value for money services with a focus on designing, fabricating, installing and managing stormwater assets.”

Source: company website · checked Sep 6, 2026
18Partial evidenceAdelaide, AustraliaHQ checked Sep 6, 20261-109 contacts →

“Southfront is a specialist consultancy focusing on the application of best practice and local knowledge in the field of stormwater management across South Australia.”

Source: company website · checked Sep 6, 2026
19Indirect evidenceRockhampton, AustraliaHQ checked Sep 6, 202611-509 contacts →

“Arris Water specialises in decentralised water developments.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceBrisbane, AustraliaHQ checked Sep 6, 20261-108 contacts →

“Founded in 2015, Cowie Environmental Services is a well-respected consultancy, offering expertise across various sectors, including construction, mining, oil and gas, transport…”

Source: company website · checked Sep 6, 2026
21Indirect evidenceMelbourne, AustraliaHQ checked Sep 6, 20261-107 contacts →

“ARC Environmental is an Australian-owned environmental professional services firm, specialising in the provision of land and groundwater contamination assessment/remediation and…”

Source: company website · checked Sep 6, 2026
22Partial evidenceGold Coast, AustraliaHQ checked Sep 6, 20261-107 contacts →

“ADG Consulting is a specialist consulting firm delivering a wide range of environmental services.”

Source: company website · checked Sep 6, 2026
23Indirect evidenceCastle Hill, AustraliaHQ checked Sep 6, 202611-507 contacts →

“Olsen Infrastructure is a Sydney Water accredited Water Servicing Coordinator and Building Hydraulic Engineering Firm offering: Sydney Water Building Plan Approvals (BOS/BAS)…”

Source: company website · checked Sep 6, 2026
24Partial evidenceBangor, AustraliaHQ checked Sep 6, 20261-107 contacts →

“Water Wise Consulting offers independent water infrastructure and irrigation advice for Government, Private Sector and Property Developers.”

Source: company website · checked Sep 6, 2026

Showing 24 of 96 stormwater compliance consulting firms based in Australia

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Stormwater compliance consulting firms based in Australia at a glance

As of Sep 6, 2026
60.5%Verified-email coverage
6.0%Mobile-number coverage
8.9Average contacts per company
1-10Median size (employees)
12.5%Largest-city concentration · Sydney
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
63
11-50
30
51-200
2
201-500
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 stormwater compliance consulting firms, 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 “stormwater compliance consulting firms”. 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 stormwater compliance consulting firms), 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 stormwater compliance consulting firms, 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, 518 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 6, 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 stormwater compliance consulting firms, 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 stormwater compliance consulting firms are there based in Australia?

RevenueBase identified 96 stormwater compliance consulting firms 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?

Atlan Stormwater, headquartered in Sydney Olympic Park, tops this list with the largest team on record.

Which city has the most stormwater compliance consulting firms?

Sydney leads with 12 headquartered companies, followed by Melbourne (7) and Brisbane (4).

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 518 verified decision-maker contacts tracked across these 96 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 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 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.