Company lists · Data refreshed November 2026

Top 24 Infrastructure conglomerates based in Australia

RevenueBase identified 587 company matches for infrastructure conglomerates associated with Australia as of November 2026 and tracks 68,554 professional contacts across them, including 21,787 with verified work emails. Sydney is the largest hub.

This list covers company matches for infrastructure conglomerates 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
587Companies
68,554Contacts tracked
21,787Verified emails
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The 24 largest infrastructure conglomerates based in Australia

Ranked by team size
Top 24 of 587 company matches for infrastructure conglomerates 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 matchNorth Ryde, AustraliaHQ recorded Nov 6, 202610001+11,691 contacts →

Exact match

“Enabling communities to thrive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMelbourne Cbd, AustraliaHQ recorded Nov 6, 20265,001-10,0006,407 contacts →

Exact match

“At John Holland, our purpose is simple: we transform lives.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNorth Sydney, AustraliaHQ recorded Nov 6, 202610001+5,392 contacts →

Exact match

“CPB Contractors is a leading major contractor, trusted to build critical and complex infrastructure across Australia and New Zealand for a more connected, sustainable future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact matchNorth Ryde, AustraliaHQ recorded Nov 6, 20265,001-10,0003,473 contacts →

Exact match

“Boral is the largest vertically-integrated construction materials company in Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchRichmond, AustraliaHQ recorded Nov 6, 20261,001-5,0002,691 contacts →

Exact match

“We are Creative Construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPerth, AustraliaHQ recorded Nov 6, 20261,001-5,0002,431 contacts →

Exact match

“SRG Global is a diversified infrastructure services company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchDocklands, AustraliaHQ recorded Nov 6, 20261,001-5,0002,419 contacts →

Exact match

“Service Stream plays a vital role, working with our clients in keeping communities connected to essential network services across Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAustraliaHQ recorded Nov 6, 2026501-1,000900 contacts →

Exact match

“Seymour Whyte is a multi award-winning civil contractor that delivers major essential infrastructure across Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBrisbane City, AustraliaHQ recorded Nov 6, 20261,001-5,000807 contacts →

Exact match

“DT Infrastructure is a fresh name in Australia’s construction industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchRichmond, AustraliaHQ recorded Nov 6, 2026501-1,000783 contacts →

Exact match

“Icon is a globally connected, integrated construction group trusted to build what matters most.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRegents Park, AustraliaHQ recorded Nov 6, 2026501-1,000589 contacts →

Exact match

“Abergeldie is a locally owned contractor with 30 years industry experience in Australia and New Zealand.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPort Melbourne, AustraliaHQ recorded Nov 6, 20261,001-5,000574 contacts →

Exact match

“Delta Group offer diversified and integrated contracting capabilities that shape the urban and industrial landscapes of tomorrow.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRichmond, AustraliaHQ recorded Nov 6, 20265,001-10,000573 contacts →

Exact match

“For more than 125 years, Aveng has evolved in character, capacity and reach and continues to make its mark across the globe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNorth Sydney, AustraliaHQ recorded Nov 6, 2026201-500514 contacts →

Exact match

“Established in 1976 and listed on the Kuala Lumpur Stock Exchange (KLSE) in 1992, Gamuda delivers innovative world-class infrastructure, concessions and communities development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchDoncaster, AustraliaHQ recorded Nov 6, 2026201-500480 contacts →

Exact match

“Nacap is a leading energy infrastructure contractor with four decades of global experience in delivering large-scale and complex energy infrastructure projects to power…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMilton, AustraliaHQ recorded Nov 6, 2026501-1,000322 contacts →

Exact match

“Humes is a division of Holcim Australia and the nation's leading civil precast concrete manufacturer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCampbellfield, AustraliaHQ recorded Nov 6, 2026501-1,000293 contacts →

Exact match

“We're BildGroup and we're built differently.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact 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
20Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500261 contacts →

Exact match

“Plenary is a leading developer, investor and manager of infrastructure and real assets, specialising in public-private partnerships, precinct developments and community…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchPerth, AustraliaHQ recorded Nov 6, 202651-200249 contacts →

Exact match

“ATCO's Australian operations are headquartered in Perth, Western Australia and specialises in creating innovative, customer focused energy and infrastructure solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMaroochydore, AustraliaHQ recorded Nov 6, 2026501-1,000239 contacts →

Exact match

“As a specialist infrastructure, construction and services contractor, Whittens provides clients with a single source solution at every stage of the construction cycle, from early…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBrisbane City, AustraliaHQ recorded Nov 6, 2026201-500238 contacts →

Exact match

“For 25+ years, we've helped asset centric organisations, keep operations running and people safe, through reliable systems, quality data, and trusted advice.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAustraliaHQ recorded Nov 6, 20261,001-5,000234 contacts →

Exact match

“Martinus is an Australian owned, industry leading, full-service railway infrastructure company that builds and maintains large scale railways and intermodals across Australia, New…”

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

Showing 24 of 587 infrastructure conglomerates based in Australia

See the full list, filter by size, metro and specialty, and access 21,787 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure conglomerates based in Australia at a glance

As of Nov 6, 2026
31.8%Verified-email coverage
116.8Average contacts per company
11-50Median size (employees)
10.9%Largest-city concentration · Sydney
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
166
11-50
182
51-200
141
201-500
46
501-1,000
19
1,001-5,000
15
5,001-10,000
5
10001+
8

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 587 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 conglomerates” 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 21,787 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 conglomerates”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many infrastructure conglomerates are there based in Australia?

RevenueBase identified 587 company matches for infrastructure conglomerates 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?

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

Which city has the most infrastructure conglomerates?

Sydney leads with 64 company records, followed by Melbourne (60) and Brisbane (38).

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 21,787 professional contacts with verified work emails tracked across these 587 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.