Company lists · Data refreshed September 2026

Top 24 Aquatic engineering firms based in Sydney, Australia

Name: Aquatic engineering firms based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 58 companies tracked

RevenueBase identified 58 aquatic engineering firms headquartered in Sydney, Australia as of September 2026 and tracks 15,223 professional contacts across them, including 6,914 with verified work emails. Across Australia, Sydney is the largest hub for this category.

This list covers aquatic engineering 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 30, 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 30, 2026 86% judged on-target in blind review

58Companies

15,223Contacts tracked

6,914Verified emails

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The 24 largest aquatic engineering firms based in Sydney, Australia

Ranked by team size

Top 24 of 58 aquatic engineering firms based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to aquatic engineering 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	GHD	Indirect evidence	Sydney, AustraliaHQ checked Sep 30, 2026	10001+	14,572 contacts →
	Indirect evidence “We are committed to addressing the world’s biggest challenges in the areas of water, energy and communities.” Source: RevenueBase Database · checked Sep 30, 2026
2	Turnbull Engineering	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	51-200	73 contacts →
	Partial 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 30, 2026
3	Chalouhi	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	51-200	67 contacts →
	Partial evidence “Chalouhi is a leading civil engineering and construction company with extensive experience in the industry.” Source: RevenueBase Database · checked Sep 30, 2026
4	Triaxial Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	51-200	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 30, 2026
5	Wsce Warren Smith Consulting Engineers	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	51-200	40 contacts →
	Partial 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 30, 2026
6	Wmawater	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	11-50	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 30, 2026
7	Paragon Engineering	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	11-50	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 30, 2026
8	Catchment Simulation Solutions	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	15 contacts →
	Partial 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 30, 2026
9	Centric Building Services Engineers	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	11-50	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 30, 2026
10	Civil Structures Studio	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	11 contacts →
	Partial evidence “Civil Structures Studio (CSS) is a collaboration of passionate and experienced individuals who revel in delivering complex structural engineering projects.” Source: RevenueBase Database · checked Sep 30, 2026
11	Certus Projects	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	11-50	11 contacts →
	Partial evidence “Certus Projects is an engineering contractor with the infrastructure sector.” Source: RevenueBase Database · checked Sep 30, 2026
12	Surex Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	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 30, 2026
13	S&g Consultants PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	11-50	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 30, 2026
14	GRC Hydro PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	8 contacts →
	Partial evidence “GRC Hydro is a hydrology and water engineering firm based in Sydney, Australia.” Source: RevenueBase Database · checked Sep 30, 2026
15	KSH	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	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 30, 2026
16	Expert Water Modelling	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	11-50	6 contacts →
	Partial evidence “Expert Water Modelling is an engineering sub-consultancy that provides Computational Fluid Dynamics modelling services to larger consultants in the water and wastewater industries.” Source: RevenueBase Database · checked Sep 30, 2026
17	Metric Engineering	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	5 contacts →
	Partial evidence “Metric Engineering is a structural and stormwater engineering firm that specializes in designing robust and resilient infrastructure.” Source: RevenueBase Database · checked Sep 30, 2026
18	Carnview Civil	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	11-50	3 contacts →
	Partial evidence “Carnview is a leading civil engineering firm specializing in pipeline and utility infrastructure development and construction projects.” Source: RevenueBase Database · checked Sep 30, 2026
19	LP Consulting Australia PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
20	SDC Engineering PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	2 contacts →
	Indirect evidence “With our extensive experience and expertise in the design, management and construction aspects of large commercial innovative projects across Sydney, Australia.” Source: RevenueBase Database · checked Sep 30, 2026
21	Apex Consultancy PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	2 contacts →
	Partial evidence “Apex Consultancy Pty Ltd At Apex Consultancy Pty Ltd, we are dedicated to delivering safe, sustainable, and innovative geotechnical and civil engineering solutions.” Source: RevenueBase Database · checked Sep 30, 2026
22	TLM Civil	Indirect evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
23	Fontalis Project Services	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	1 contacts →
	Partial evidence “Fontalis is your trusted project partner to deliver iconic civil engineering and marine projects.” Source: RevenueBase Database · checked Sep 30, 2026
24	Baleh Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 30, 2026	1-10	1 contacts →
	Partial evidence “Baleh Consulting Pty Ltd is a national consulting firm based in Sydney, specialising in sustainable engineering, concrete technology, durability, waterproofing, and remedial…” Source: RevenueBase Database · checked Sep 30, 2026

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: aquatic engineering 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 aquatic engineering firms.
Partial evidence: Its own public description names part of aquatic engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name aquatic engineering 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 24 of 58 aquatic engineering firms based in Sydney, Australia

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Aquatic engineering firms based in Sydney, Australia at a glance

As of Sep 30, 2026

45.4%Verified-email coverage

262.5Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

10001+

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 58 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 aquatic engineering 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 “aquatic engineering 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 aquatic engineering 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 aquatic engineering 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, 6,914 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 30, 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.

Aquatic engineering 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 aquatic engineering 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 aquatic engineering firms are there based in Sydney, Australia?

RevenueBase identified 58 aquatic engineering 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 aquatic engineering firms?

Sydney leads Australia with 58 headquartered companies, followed by Melbourne (43) and Brisbane (32).

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 6,914 verified decision-maker contacts tracked across these 58 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 30, 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.