Company lists · Data refreshed September 2026

Top 25 Aquatic engineering firms based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 686 companies tracked

RevenueBase identified 686 aquatic engineering firms headquartered in Australia as of September 2026 and tracks 29,830 professional contacts across them, including 13,169 with verified work emails. Sydney is the largest hub.

This list covers aquatic engineering 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 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

686Companies

29,830Contacts tracked

13,169Verified emails

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The 25 largest aquatic engineering firms based in Australia

Ranked by team size

Top 25 of 686 aquatic engineering firms based in 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	Cardno	Indirect evidence	Fortitude Valley, AustraliaHQ checked Sep 30, 2026	1,001-5,000	985 contacts →
	Indirect evidence “Cardno is now officially Stantec.” Source: RevenueBase Database · checked Sep 30, 2026
3	Robert Bird Group	Partial evidence	Brisbane, AustraliaHQ checked Sep 30, 2026	501-1,000	872 contacts →
	Partial evidence “Robert Bird Group (RBG), member of the Surbana Jurong Group, is a specialist structural, civil and construction engineering consultancy with over 800 employees across 12 offices…” Source: RevenueBase Database · checked Sep 30, 2026
4	Calibre	Indirect evidence	Perth, AustraliaHQ checked Sep 30, 2026	1,001-5,000	660 contacts →
	Indirect evidence “Calibre was acquired by WSP.” Source: RevenueBase Database · checked Sep 30, 2026
5	Abergeldie Complex Infrastructure	Indirect evidence	Regents Park, AustraliaHQ checked Sep 30, 2026	501-1,000	543 contacts →
	Indirect evidence “Abergeldie is a locally owned contractor with 30 years industry experience in Australia and New Zealand.” Source: RevenueBase Database · checked Sep 30, 2026
6	Entura	Indirect evidence	Hobart, AustraliaHQ checked Sep 30, 2026	201-500	271 contacts →
	Indirect evidence “Entura is one of the world’s most experienced specialist power and water consulting firms.” Source: RevenueBase Database · checked Sep 30, 2026
7	Tonkin	Partial evidence	Adelaide, AustraliaHQ checked Sep 30, 2026	201-500	237 contacts →
	Partial evidence “Tonkin is a leading provider of engineering, environmental and consultancy services to private and public organisations.” Source: RevenueBase Database · checked Sep 30, 2026
8	Freyssinet Australia	Partial evidence	Macquarie Park, AustraliaHQ checked Sep 30, 2026	201-500	220 contacts →
	Partial evidence “Freyssinet is a versatile contractor that offers innovative solutions spanning from design to implementation for Specialist Civil Engineering and Structure Remediation projects.” Source: RevenueBase Database · checked Sep 30, 2026
9	ACE Contractors Group Pty. LTD	Indirect evidence	Nunawading, AustraliaHQ checked Sep 30, 2026	201-500	205 contacts →
	Indirect evidence “Ace Contractors Group Pty.” Source: RevenueBase Database · checked Sep 30, 2026
10	Pensar	Indirect evidence	Hamilton, AustraliaHQ checked Sep 30, 2026	201-500	198 contacts →
	Indirect evidence “We offer insightful, original design thinking, implemented by a team with proven expertise to deliver flexible fit-for-purpose critical infrastructure solutions.” Source: RevenueBase Database · checked Sep 30, 2026
11	Shamrock Civil Engineering	Indirect evidence	Brisbane, AustraliaHQ checked Sep 30, 2026	51-200	185 contacts →
	Indirect evidence “Shamrock Civil is a privately owned civil construction company, delivering services to the Defence & Government sectors, gas and mining, transport infrastructure and commercial.” Source: RevenueBase Database · checked Sep 30, 2026
12	Hall Contracting	Indirect evidence	Buderim, AustraliaHQ checked Sep 30, 2026	51-200	165 contacts →
	Indirect evidence “Hall Contracting is Australia’s largest privately-owned dredging, civil and marine construction company with offices in South East Asia, the Pacific Islands and Australia.” Source: RevenueBase Database · checked Sep 30, 2026
13	Bielby Holdings	Partial evidence	Milton, AustraliaHQ checked Sep 30, 2026	201-500	152 contacts →
	Partial evidence “Bielby is a wholly-owned and operated Queensland based civil engineering company providing leading earthworks and infrastructure capabilities to clients across Australia.” Source: RevenueBase Database · checked Sep 30, 2026
14	Premise	Indirect evidence	Brisbane City, AustraliaHQ checked Sep 30, 2026	51-200	151 contacts →
	Indirect evidence “Premise is now part of Amey and operates as Amey Australia.” Source: RevenueBase Database · checked Sep 30, 2026
15	Ward Civil & Environmental Engineering	Partial evidence	Lane Cove West, AustraliaHQ checked Sep 30, 2026	51-200	134 contacts →
	Partial evidence “Founded by the late Peter Ward in 1973, WARD is a multi-disciplined and full-service civil and environmental engineering contractor.” Source: RevenueBase Database · checked Sep 30, 2026
16	FSC	Partial evidence	Richmond, AustraliaHQ checked Sep 30, 2026	51-200	120 contacts →
	Partial evidence “FSC is an employee-owned professional services company providing engineering, project management and environmental consulting services.” Source: RevenueBase Database · checked Sep 30, 2026
17	JJ Ryan Consulting	Indirect evidence	Burwood, AustraliaHQ checked Sep 30, 2026	51-200	109 contacts →
	Indirect evidence “We are a fast growing consulting firm with a skilled and experienced team of engineers, designers and project managers that focus on problem solving.” Source: RevenueBase Database · checked Sep 30, 2026
18	TMK Consulting Engineers	Partial evidence	Adelaide, AustraliaHQ checked Sep 30, 2026	51-200	102 contacts →
	Partial evidence “TMK Consulting Engineers success and growth is built on a reputation of delivering broad-based engineering design that is high quality, technical excellence, reliable and building…” Source: RevenueBase Database · checked Sep 30, 2026
19	Civil Infrastructure Group	Indirect evidence	Campbellfield, AustraliaHQ checked Sep 30, 2026	51-200	99 contacts →
	Indirect evidence “Civil Infrastructure Group (CIG) was formed in 2016 to provide specialist construction services to the civil infrastructure industry in Victoria.” Source: RevenueBase Database · checked Sep 30, 2026
20	Burchills Engineering Solutions	Partial evidence	South East Queensland, AustraliaHQ checked Sep 30, 2026	51-200	98 contacts →
	Partial evidence “Burchills Engineering Solutions is a South East Qld based, locally owned multidisciplinary team of professional engineers & scientists with a track record of helping clients…” Source: RevenueBase Database · checked Sep 30, 2026
21	Meinhardt Australia & NEW Zealand	Indirect evidence	Melbourne, AustraliaHQ checked Sep 30, 2026	201-500	95 contacts →
	Indirect evidence “Our people are the heart and soul of our business.” Source: RevenueBase Database · checked Sep 30, 2026
22	CMP Consulting Group	Partial evidence	Mulgrave, AustraliaHQ checked Sep 30, 2026	51-200	94 contacts →
	Partial evidence “CMP Consulting Group is a multi-disciplinary Engineering firm specialising in design, project management and construction phase services for the Water Industry.” Source: RevenueBase Database · checked Sep 30, 2026
23	Hunter H2o	Indirect evidence	Mayfield West, AustraliaHQ checked Sep 30, 2026	51-200	93 contacts →
	Indirect evidence “Beca HunterH2O is a diverse, empowered, and trusted team of 300+ water specialists, passionate about healthy and sustainable communities wherever we work.” Source: RevenueBase Database · checked Sep 30, 2026
24	Adenco	Partial evidence	Wangara, AustraliaHQ checked Sep 30, 2026	51-200	93 contacts →
	Partial evidence “ADENCO is a dynamic company in the Water Management & Civil and Mechanical Engineering Industry.” Source: RevenueBase Database · checked Sep 30, 2026
25	Sequana	Indirect evidence	Melbourne, AustraliaHQ checked Sep 30, 2026	51-200	89 contacts →
	Indirect evidence “Sequana is a client-side project management consultancy that aims to provide exceptional advice, leadership and management services to the water and environment industry.” 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 25 of 686 aquatic engineering firms based in Australia

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Aquatic engineering firms based in Australia at a glance

As of Sep 30, 2026

44.1%Verified-email coverage

43.5Average contacts per company

11-50Median size (employees)

8.5%Largest-city concentration · Sydney

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

324

11-50

233

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 686 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 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 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, 13,169 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

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 Australia?

RevenueBase identified 686 aquatic engineering 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?

GHD, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most aquatic engineering firms?

Sydney leads 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 13,169 verified decision-maker contacts tracked across these 686 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.