Company lists · Data refreshed September 2026
Top 25 Water infrastructure consulting firms based in Sydney, Australia
RevenueBase identified 93 water infrastructure consulting firms headquartered in Sydney, Australia as of September 2026 and tracks 18,514 professional contacts across them, including 8,983 with verified work emails. Across Australia, Sydney is the largest hub for this category.
This list covers water infrastructure consulting firms headquartered in Sydney, 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 29, 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.
The 25 largest water infrastructure consulting firms based in Sydney, Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 14,572 contacts → | ||||
Partial evidence “We are committed to addressing the world’s biggest challenges in the areas of water, energy and communities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,132 contacts → | ||||
Indirect evidence “We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 95 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 73 contacts → | ||||
Strong evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 57 contacts → | ||||
Partial evidence “Established in 2012, Triaxial Consulting are a firm of Consulting Civil and Structural Engineers, who provide a suite of specialist consulting engineering services, to all…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 45 contacts → | ||||
Partial evidence “Qubist is an advisory business that provides expertise to clients with utility and infrastructure assets.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 40 contacts → | ||||
Strong evidence “WSce is a multi-discipline Australian-owned consulting engineering firm specialising in civil, water, hydraulic, fire services (wet & dry fire) and specialty water and wasterwater…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 32 contacts → | ||||
Indirect evidence “Nutbrook Group was established with the objective of integrating a values-driven approach to Consultancy, Engineering and Project Management services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 contacts → | ||||
Partial evidence “WMAWater is specialist engineering consultancy providing engineering analysis and advice in a range of water-related fields.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 27 contacts → | ||||
Partial evidence “BMM Group provide project advisory and professional services to large scale infrastructure projects (telecommunications, rail, mining, energy) Our services include project…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 21 contacts → | ||||
Partial evidence “Indus Engineering is a specialist team of experienced engineering professionals providing project management and advisory services to all infrastructure developments.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 18 contacts → | ||||
Partial evidence “Paragon Engineering is a specialist consultancy operating across Australia, delivering practical and innovative engineering solutions to clients in the transport infrastructure…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 16 contacts → | ||||
Indirect evidence “At Croí (pronounced kree), we are an award-winning team delivering utility project management and design (ASP3 certified) with a commitment to innovation, efficiency, and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 15 contacts → | ||||
Strong evidence “Catchment Simulation Solutions provides engineering consulting services in the water field with a special focus on hydrologic and hydraulic modelling.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 contacts → | ||||
Partial evidence “Centric Building Services Engineers Centric Building Services Engineers are a team of highly experienced consulting engineering experts in building services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Partial evidence “SUREX Consulting is setting a new benchmark for premium engineering services, delivering exceptional designs that exceed expectations and ensure buildings are built to the highest…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 contacts → | ||||
Partial evidence “S&G Consultants Pty Ltd is a dynamic organisation founded in 2003 by Managing Director Samer El Haddad in response to a market demand for integrated consulting engineering…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Indirect evidence “n2 Engineering Consultants provides innovative, reliable, and Australian-designed engineering solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Indirect evidence “MCE – Management • Commercial • Engineering was established in 2014 and is based in Sydney, Canberra, Queensland and Melbourne.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “Veritas Asia Pacific Pty Ltd (VERITAS) is a progressive, privately owned Australian advisory services firm that provides Total Asset Life Cycle Services to networked and asset…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 contacts → | ||||
Partial evidence “GRC Hydro is a hydrology and water engineering firm based in Sydney, Australia.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 contacts → | ||||
Indirect evidence “Sphere was founded in 2018 in recognition of the need for advisors with specific environmental sector experience, development capability and expertise in delivering complex…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Strong evidence “Digitise Consulting is a specialist engineering consultancy providing Digital Advisory, Design and Engineering services to the public and private sector across infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Partial evidence “KSH is an employee owned, specialised engineering and project service provider with a proven track record in complex multi-facet infrastructure projects.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Partial evidence “PRO Consultants is an independent, Australian owned utilities services and project management consulting firm, specialising in the delivery of railway, road, development and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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 infrastructure consulting firms. 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 infrastructure consulting firms.
- Partial evidence
- Its own public description names part of water infrastructure consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water infrastructure consulting firms. 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 93 water infrastructure consulting firms based in Sydney, Australia
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Water infrastructure consulting firms based in Sydney, Australia at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured across the whole Australia list rather than for Sydney, so it is reported there. Company counts and contact totals on this page are exact for Sydney, over 93 companies.
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 infrastructure 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 Sydney, Australia whose own description of what they do matches “water infrastructure 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 water infrastructure 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 water infrastructure consulting firms, and records with no verified work email. Companies headquartered outside Sydney 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, 8,983 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 29, 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.
Water infrastructure consulting firms by metro in Australia
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 infrastructure 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 water infrastructure consulting firms are there based in Sydney, Australia?
RevenueBase identified 93 water infrastructure consulting firms headquartered in Sydney, 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?
GHD, headquartered in Sydney, tops this list with the largest team on record.
Which city in Australia has the most water infrastructure consulting firms?
Sydney leads Australia with 93 headquartered companies, followed by Melbourne (70) and Brisbane (45).
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 8,983 verified decision-maker contacts tracked across these 93 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 29, 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.
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