Company lists · Data refreshed November 2026

Top 25 Infrastructure consulting services based in Australia

RevenueBase identified 3,153 company matches for infrastructure consulting services associated with Australia as of November 2026 and tracks 73,278 professional contacts across them, including 37,008 with verified work emails. Sydney is the largest hub.

This list covers company matches for infrastructure consulting services associated with Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
3,153Companies
73,278Contacts tracked
37,008Verified emails
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The 25 largest infrastructure consulting services based in Australia

Ranked by team size
Top 25 of 3,153 company matches for infrastructure consulting services based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSydney, AustraliaHQ recorded Nov 6, 202610001+15,329 contacts →

Exact match

“We are committed to addressing the world’s biggest challenges in the areas of water, energy and communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchDocklands, AustraliaHQ recorded Nov 6, 20265,001-10,0008,676 contacts →

Exact match

“Aurecon is an Asia Pacific engineering consultancy that believes the world needs people who can engineer possibilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNorth Sydney, AustraliaHQ recorded Nov 6, 20265,001-10,0003,748 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchSydney, AustraliaHQ recorded Nov 6, 202610001+3,440 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSydney, AustraliaHQ recorded Nov 6, 20261,001-5,000869 contacts →

Exact match

“Atturra (ASX: ATA) is one of Australia's leading advisory and IT solutions providers, focused on providing end-to-end transformation services to its clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMillers Point, AustraliaHQ recorded Nov 6, 2026501-1,000821 contacts →

Exact match

“BG & E is a multidisciplinary engineering consultancy, recognised for innovative, award-winning designs that prioritise practicality, constructability and long-term performance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSt Leonards, AustraliaHQ recorded Nov 6, 20265,001-10,000670 contacts →

Exact match

“Sinclair Knight Merz was acquired by Jacobs in 2013.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500584 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAdelaide, AustraliaHQ recorded Nov 6, 2026501-1,000573 contacts →

Exact match

“Fyfe is an Australian professional services firm that delivers value through integrated engineering, environmental, planning and surveying services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNorth Sydney, AustraliaHQ recorded Nov 6, 2026501-1,000531 contacts →

Exact match

“Great engineering starts with great people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSydney, AustraliaHQ recorded Nov 6, 2026501-1,000446 contacts →

Exact match

“Founded in 1997, ACOR Consultants began as a group of engineers with a unique set of personal and professional values providing specialist consulting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMelbourne, AustraliaHQ recorded Nov 6, 202610001+420 contacts →

Exact match

“Egis is an international player active in architecture, consulting, construction engineering and mobility services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSt Leonards, AustraliaHQ recorded Nov 6, 2026201-500363 contacts →

Exact match

“At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchTeralba, AustraliaHQ recorded Nov 6, 2026201-500347 contacts →

Exact match

“Umwelt has been trusted by clients and communities for over 30 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchUnley, AustraliaHQ recorded Nov 6, 2026201-500343 contacts →

Exact match

“A highly experienced, multidisciplinary engineering and management firm, GPA has consulted and provided engineering, procurement and construction management (EPCM) services, since…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAdelaide, AustraliaHQ recorded Nov 6, 2026201-500336 contacts →

Exact match

“At Lucid, our purpose is simple: creating a better world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500336 contacts →

Exact match

“pitt & sherry is an Australian-owned engineering and environmental consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchToowong, AustraliaHQ recorded Nov 6, 2026201-500312 contacts →

Exact match

“ADG, proudly part of AtkinsRéalis since December 2025, combines decades of multi-sector experience with a diverse range of established and emerging engineering disciplines…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500310 contacts →

Exact match

“When you need a trusted delivery partner, we're by your side.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHobart, AustraliaHQ recorded Nov 6, 2026201-500286 contacts →

Exact match

“Entura is one of the world’s most experienced specialist power and water consulting firms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500270 contacts →

Exact match

“Johnstaff is an independent Australian and New Zealand-owned consulting practice that specialises in client-side Advisory and Project Management services for the planning and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500265 contacts →

Exact match

“At Terra Firma, we understand that success is all about sustaining long-term relationships.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAdelaide, AustraliaHQ recorded Nov 6, 2026201-500247 contacts →

Exact match

“Tonkin is a leading provider of engineering, environmental and consultancy services to private and public organisations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNorth Sydney, AustraliaHQ recorded Nov 6, 2026501-1,000227 contacts →

Exact match

“SYSTRA ANZ is a leading consulting and engineering firm delivering innovative, practical and sustainable solutions across transport, infrastructure, buildings, water, energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500226 contacts →

Exact match

“We empower people to make a difference.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,153 infrastructure consulting services based in Australia

See the full list, filter by size, metro and specialty, and access 37,008 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure consulting services based in Australia at a glance

As of Nov 6, 2026
50.5%Verified-email coverage
23.2Average contacts per company
1-10Median size (employees)
16.4%Largest-city concentration · Sydney
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,041
11-50
789
51-200
221
201-500
41
501-1,000
13
1,001-5,000
8
5,001-10,000
5
10001+
5

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 3,153 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Australia whose business descriptions match “infrastructure consulting services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 37,008 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “infrastructure consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure consulting services are there based in Australia?

RevenueBase identified 3,153 company matches for infrastructure consulting services associated with Australia as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

GHD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most infrastructure consulting services?

Sydney leads with 518 company records, followed by Melbourne (440) and Brisbane (279).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 37,008 professional contacts with verified work emails tracked across these 3,153 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 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 SmartSearch, 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.