Company lists · Data refreshed September 2026

Top 25 Infrastructure conglomerates based in Sydney, Australia

Name: Infrastructure conglomerates based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 78 companies tracked

RevenueBase identified 78 infrastructure conglomerates headquartered in Sydney, Australia as of September 2026 and tracks 1,051 professional contacts across them, including 583 with verified work emails. Sydney is the largest hub.

This list covers infrastructure conglomerates 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 20, 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 20, 2026 86% judged on-target in blind review

78Companies

1,051Contacts tracked

583Verified emails

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The 25 largest infrastructure conglomerates based in Sydney, Australia

Ranked by team size

Top 25 of 78 infrastructure conglomerates based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure conglomerates: 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	Connellgriffin	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	51-200	184 contacts →
	Partial evidence “ConnellGriffin is a commercial advisory firm operating within the infrastructure industry.” Source: RevenueBase Database · checked Sep 20, 2026
2	Ghella ANZ	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	201-500	146 contacts →
	Indirect evidence “Founded in 1894, Ghella operates in the construction of large public projects and specialises in underground excavation and tunnelling works.” Source: RevenueBase Database · checked Sep 20, 2026
3	Turnbull Engineering	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 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 20, 2026
4	Chalouhi	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	51-200	67 contacts →
	Indirect evidence “Chalouhi is a leading civil engineering and construction company with extensive experience in the industry.” Source: RevenueBase Database · checked Sep 20, 2026
5	Brefni	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	51-200	65 contacts →
	Partial evidence “Brefni delivers sustainable civil infrastructure across Australia's public and private sectors - on time, on budget, and built to last.” Source: RevenueBase Database · checked Sep 20, 2026
6	MI Engineers	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	51-200	49 contacts →
	Indirect evidence “MI Engineers is a tech-enabled engineering firm with over 40 years of experience.” Source: RevenueBase Database · checked Sep 20, 2026
7	Hy-Tec Concrete & Aggregates	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	501-1,000	47 contacts →
	Partial evidence “Hy-Tec Concrete & Aggregates is part of the Adbri group of products, supplying concrete, aggregates and sands to the residential, commercial and infrastructure sectors.” Source: RevenueBase Database · checked Sep 20, 2026
8	BMM Group	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	27 contacts →
	Partial evidence “BMM Group provide project advisory and professional services to large scale infrastructure projects (telecommunications, rail, mining, energy) Our services include project…” Source: RevenueBase Database · checked Sep 20, 2026
9	Empire Project Management	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “Empire Project Management was formed in 2017 by Mark Pritchard.” Source: RevenueBase Database · checked Sep 20, 2026
10	CROI	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “At Croí (pronounced kree), we are an award-winning team delivering utility project management and design (ASP3 certified) with a commitment to innovation, efficiency, and…” Source: RevenueBase Database · checked Sep 20, 2026
11	Australian Utilities Management	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	51-200	14 contacts →
	Indirect evidence “Australian Utilities Management is a multi-disciplinary company with more than 20 years industry experience.” Source: RevenueBase Database · checked Sep 20, 2026
12	Antoun	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	51-200	14 contacts →
	Indirect evidence “We are an internationally diverse construction and engineering business that focuses on bringing advanced technologies and innovative solutions to our clients and the broader…” Source: RevenueBase Database · checked Sep 20, 2026
13	SGH LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	n/a	14 contacts →
	Indirect evidence “SGH Ltd (ASX:SGH) is an Australian diversified operating company, with market leading businesses across industrial services, energy and media.” Source: RevenueBase Database · checked Sep 20, 2026
14	Civil Structures Studio	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	1-10	11 contacts →
	Indirect 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 20, 2026
15	Certus Projects	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Certus Projects is an engineering contractor with the infrastructure sector.” Source: RevenueBase Database · checked Sep 20, 2026
16	Avista Strategy	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “We are a strategic consultancy for the infrastructure industry, born out of the sense that there was a better way.” Source: RevenueBase Database · checked Sep 20, 2026
17	Contrado	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “Our Vision To be a leader in the development and delivery of integrated infrastructure and property solutions.” Source: RevenueBase Database · checked Sep 20, 2026
18	Hadron Group	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “Helping our clients better develop and deliver complex projects in the transport and social infrastructure sector.” Source: RevenueBase Database · checked Sep 20, 2026
19	MCE Management Commercial Engineering	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “MCE – Management • Commercial • Engineering was established in 2014 and is based in Sydney, Canberra, Queensland and Melbourne.” Source: RevenueBase Database · checked Sep 20, 2026
20	Kane Civil	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Established in 2015, Kane Civil Pty Ltd offers a wealth of experience in all aspects of Civil Construction.” Source: RevenueBase Database · checked Sep 20, 2026
21	Australian Utility Solutions AUS	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Australian Utility Solutions (AUS) specialise in identifying, quantifying, scoping, pricing and managing utilities.” Source: RevenueBase Database · checked Sep 20, 2026
22	Nettlefold Projects	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “At Nettlefold Projects we provide a winning formula when it comes to every stage of any project.” Source: RevenueBase Database · checked Sep 20, 2026
23	KSH	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 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 20, 2026
24	PRO Consultants	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “PRO Consultants is an independent, Australian owned utilities services and project management consulting firm, specialising in the delivery of railway, road, development and…” Source: RevenueBase Database · checked Sep 20, 2026
25	Tower Group Projects	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Holding company of Tower Formwork & Construction and Tower Civil, Operating in Sydney and Queensland since 2004, the driving force behind Tower’s management team has over twenty…” Source: RevenueBase Database · checked Sep 20, 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 conglomerates. 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 conglomerates.
Partial evidence: Its own public description names part of infrastructure conglomerates, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure conglomerates. 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 78 infrastructure conglomerates based in Sydney, Australia

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Infrastructure conglomerates based in Sydney, Australia at a glance

As of Sep 20, 2026

55.5%Verified-email coverage

13.5Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 78 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 infrastructure conglomerates, 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 “infrastructure conglomerates”. 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 conglomerates), 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 conglomerates, 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, 583 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 20, 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 conglomerates by metro in Australia

Infrastructure conglomerates in Sydney78
Infrastructure conglomerates in Melbourne73
Infrastructure conglomerates in Brisbane61
Infrastructure conglomerates in Perth32

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 conglomerates, 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 conglomerates are there based in Sydney, Australia?

RevenueBase identified 78 infrastructure conglomerates 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?

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

Which city has the most infrastructure conglomerates?

Sydney leads with 78 headquartered companies, followed by Melbourne (73) and Brisbane (61).

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 583 verified decision-maker contacts tracked across these 78 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 20, 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.