Company lists · Data refreshed September 2026

Top 24 Infrastructure consulting firms based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 2,175 companies tracked

RevenueBase identified 2,175 infrastructure consulting firms headquartered in Australia as of September 2026 and tracks 82,168 professional contacts across them, including 32,984 with verified work emails and 5,135 with mobile numbers. Sydney is the largest hub.

This list covers infrastructure 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 3, 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 RevenueBase Smart Search rating on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

2,175Companies

82,168Contacts tracked

32,984Verified emails

5,135Mobile numbers

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The 24 largest infrastructure consulting firms based in Australia

Ranked by team size

Top 24 of 2,175 infrastructure consulting firms based in Australia, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	GHD	Indirect evidence	Sydney, AustraliaHQ checked Sep 3, 2026	10001+	14,747 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 3, 2026
2	Downer	Indirect evidence	North Ryde, AustraliaHQ checked Sep 3, 2026	10001+	10,759 contacts →
	Indirect evidence “Enabling communities to thrive.” Source: RevenueBase Database · checked Sep 3, 2026
3	UGL	Indirect evidence	North Sydney, AustraliaHQ checked Sep 3, 2026	5,001-10,000	6,022 contacts →
	Indirect evidence “UGL is CIMIC Group's specialist end-to-end engineering, services and operations provider.” Source: RevenueBase Database · checked Sep 3, 2026
4	SMEC	Indirect evidence	North Sydney, AustraliaHQ checked Sep 3, 2026	5,001-10,000	5,294 contacts →
	Indirect evidence “SMEC is a global engineering, management and development consultancy with a 70-year history of delivering advanced solutions on a global scale across urban development…” Source: RevenueBase Database · checked Sep 3, 2026
5	Rider Levett Bucknall RLB	Indirect evidence	Sydney, Australia	1,001-5,000	3,282 contacts →
	Indirect evidence “RLB.” Source: RevenueBase Database · checked Sep 3, 2026
6	WSP In Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 3, 2026	10001+	3,138 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 3, 2026
7	Lycopodium	Indirect evidence	Perth, AustraliaHQ checked Sep 3, 2026	1,001-5,000	1,132 contacts →
	Indirect evidence “Lycopodium is an Australian headquartered engineering and project management consultancy which provides a complete range of services for the evaluation, development…” Source: RevenueBase Database · checked Sep 3, 2026
8	Robert Bird Group	Indirect evidence	Brisbane, AustraliaHQ checked Sep 3, 2026	501-1,000	871 contacts →
	Indirect 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 3, 2026
9	Bg&e	Indirect evidence	Millers Point, AustraliaHQ checked Sep 3, 2026	501-1,000	755 contacts →
	Indirect evidence “BG & E is a civil and structural engineering consultancy, celebrated for our innovative, award-winning designs that prioritise practicality and constructability.” Source: RevenueBase Database · checked Sep 3, 2026
10	Sinclair Knight Merz	Indirect evidence	St Leonards, AustraliaHQ checked Sep 3, 2026	5,001-10,000	613 contacts →
	Indirect evidence “Sinclair Knight Merz was acquired by Jacobs in 2013.” Source: RevenueBase Database · checked Sep 3, 2026
11	WT Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 3, 2026	201-500	539 contacts →
	Indirect evidence “At WT, we empower our clients to grow, inspiring confidence through independent advice and inventive thinking to create sustainable value across all aspects of the built…” Source: RevenueBase Database · checked Sep 3, 2026
12	FYFE	Indirect evidence	Adelaide, AustraliaHQ checked Sep 3, 2026	501-1,000	471 contacts →
	Indirect evidence “Fyfe is an Australian professional services firm that delivers value through integrated engineering, environmental, planning and surveying services.” Source: RevenueBase Database · checked Sep 3, 2026
13	TTW	Partial evidence	North Sydney, AustraliaHQ checked Sep 3, 2026	201-500	463 contacts →
	Partial evidence “As award-winning consulting engineers, for over 65 years we’ve partnered with architects, developers, builders and project managers to tackle the most complex projects and…” Source: RevenueBase Database · checked Sep 3, 2026
14	Gamuda Australia	Partial evidence	North Sydney, AustraliaHQ checked Sep 3, 2026	201-500	455 contacts →
	Partial evidence “Established in 1976 and listed on the Kuala Lumpur Stock Exchange (KLSE) in 1992, Gamuda delivers innovative world-class infrastructure, concessions and communities development.” Source: RevenueBase Database · checked Sep 3, 2026
15	Acor Consultants	Partial evidence	Sydney, AustraliaHQ checked Sep 3, 2026	501-1,000	429 contacts →
	Partial evidence “Founded in 1997, ACOR Consultants began as a group of engineers with a unique set of personal and professional values providing specialist consulting services.” Source: RevenueBase Database · checked Sep 3, 2026
16	GPA Engineering	Indirect evidence	Unley, AustraliaHQ checked Sep 3, 2026	201-500	341 contacts →
	Indirect evidence “A highly experienced, multidisciplinary engineering and management firm, GPA has consulted and provided engineering, procurement and construction management (EPCM) services, since…” Source: RevenueBase Database · checked Sep 3, 2026
17	Umwelt Environmental & Social Consultants	Indirect evidence	Teralba, AustraliaHQ checked Sep 3, 2026	201-500	326 contacts →
	Indirect evidence “Umwelt has been trusted by clients and communities for over 30 years.” Source: RevenueBase Database · checked Sep 3, 2026
18	Lucid Consulting Australia	Indirect evidence	Adelaide, AustraliaHQ checked Sep 3, 2026	201-500	324 contacts →
	Indirect evidence “At Lucid, our purpose is simple: creating a better world.” Source: RevenueBase Database · checked Sep 3, 2026
19	Egis In ANZ	Partial evidence	Melbourne, AustraliaHQ checked Sep 3, 2026	10001+	319 contacts →
	Partial evidence “Egis is an international player active in architecture, consulting, construction engineering and mobility services.” Source: RevenueBase Database · checked Sep 3, 2026
20	Pitt&sherry	Indirect evidence	Melbourne, AustraliaHQ checked Sep 3, 2026	201-500	315 contacts →
	Indirect evidence “pitt & sherry is an Australian-owned engineering and environmental consultancy.” Source: RevenueBase Database · checked Sep 3, 2026
21	Woolpert Asia-Pacific	Indirect evidence	Sydney, AustraliaHQ checked Sep 3, 2026	1,001-5,000	291 contacts →
	Indirect evidence “Woolpert Asia-Pacific embodies all that is Woolpert, with an added focus on this region of the world.” Source: RevenueBase Database · checked Sep 3, 2026
22	ADG Engineers	Indirect evidence	Toowong, AustraliaHQ checked Sep 3, 2026	201-500	287 contacts →
	Indirect evidence “ADG, proudly part of AtkinsRéalis since December 2025, combines decades of multi-sector experience with a diverse range of established and emerging engineering disciplines…” Source: RevenueBase Database · checked Sep 3, 2026
23	RP Infrastructure	Partial evidence	Sydney, AustraliaHQ checked Sep 3, 2026	201-500	272 contacts →
	Partial evidence “RP Infrastructure is one of Australia’s largest independent property and infrastructure consultancies, now incorporating DCWC.” Source: RevenueBase Database · checked Sep 3, 2026
24	Entura	Partial evidence	Hobart, AustraliaHQ checked Sep 3, 2026	201-500	272 contacts →
	Partial evidence “Entura is one of the world’s most experienced specialist power and water consulting firms.” Source: RevenueBase Database · checked Sep 3, 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: 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 infrastructure consulting firms.
Partial evidence: Its own public description names part of 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 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 24 of 2,175 infrastructure consulting firms based in Australia

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Infrastructure consulting firms based in Australia at a glance

As of Sep 3, 2026

40.1%Verified-email coverage

6.2%Mobile-number coverage

37.8Average contacts per company

1-10Median size (employees)

15.6%Largest-city concentration · Sydney

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

1,285

11-50

619

51-200

189

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

2,84331–60

19,18361–90

10,74190–180

217180+

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 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 Australia whose own description of what they do matches “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 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 infrastructure 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, 32,984 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 3, 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.

Infrastructure consulting 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 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 infrastructure consulting firms are there based in Australia?

RevenueBase identified 2,175 infrastructure 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?

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

Which city has the most infrastructure consulting firms?

Sydney leads with 340 headquartered companies, followed by Melbourne (243) and Brisbane (194).

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 32,984 verified decision-maker contacts tracked across these 2,175 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 3, 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.