Company lists · Data refreshed September 2026

Top 25 Utility infrastructure contractors based in Australia

Name: Utility infrastructure contractors based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 415 companies tracked

RevenueBase identified 415 utility infrastructure contractors headquartered in Australia as of September 2026 and tracks 22,822 professional contacts across them, including 7,513 with verified work emails. Sydney is the largest hub.

This list covers utility infrastructure contractors 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 19, 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 19, 2026 86% judged on-target in blind review

415Companies

22,822Contacts tracked

7,513Verified emails

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The 25 largest utility infrastructure contractors based in Australia

Ranked by team size

Top 25 of 415 utility infrastructure contractors based in Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to utility infrastructure contractors: 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	Downer	Indirect evidence	North Ryde, AustraliaHQ checked Sep 19, 2026	10001+	10,666 contacts →
	Indirect evidence “Enabling communities to thrive.” Source: RevenueBase Database · checked Sep 19, 2026
2	SRG Global	Partial evidence	Perth, AustraliaHQ checked Sep 19, 2026	1,001-5,000	2,289 contacts →
	Partial evidence “SRG Global is a diversified infrastructure services company.” Source: RevenueBase Database · checked Sep 19, 2026
3	Service Stream	Indirect evidence	Docklands, AustraliaHQ checked Sep 19, 2026	1,001-5,000	1,823 contacts →
	Indirect evidence “Service Stream plays a vital role, working with our clients in keeping communities connected to essential network services across Australia.” Source: RevenueBase Database · checked Sep 19, 2026
4	Seymour Whyte	Strong evidence	Eight Mile Plains, AustraliaHQ checked Sep 19, 2026	501-1,000	818 contacts →
	Strong evidence “Seymour Whyte is a multi award-winning civil contractor that delivers major essential infrastructure across Australia.” Source: RevenueBase Database · checked Sep 19, 2026
5	Nacap PTY LTD	Strong evidence	Doncaster, AustraliaHQ checked Sep 19, 2026	201-500	441 contacts →
	Strong evidence “Nacap is a leading energy infrastructure contractor with four decades of global experience in delivering large-scale and complex energy infrastructure projects to power…” Source: RevenueBase Database · checked Sep 19, 2026
6	Shadforth	Partial evidence	Forest Glen, AustraliaHQ checked Sep 19, 2026	501-1,000	388 contacts →
	Partial evidence “Shadforth continues to grow based on our reputation of “delivering quality infrastructure sooner”.” Source: RevenueBase Database · checked Sep 19, 2026
7	Iplex Pipelines	Indirect evidence	North Sydney, AustraliaHQ checked Sep 19, 2026	501-1,000	373 contacts →
	Indirect evidence “With over 85 years’ experience, Iplex has an excellent understanding of the challenges the water industry faces.” Source: RevenueBase Database · checked Sep 19, 2026
8	Interflow	Indirect evidence	Girraween, AustraliaHQ checked Sep 19, 2026	501-1,000	359 contacts →
	Indirect evidence “A name synonymous with ‘challenging the status quo’, we have the heart of a humble business, with the vision of something much greater: a vision that drives the growth of our…” Source: RevenueBase Database · checked Sep 19, 2026
9	Trility	Indirect evidence	Adelaide, AustraliaHQ checked Sep 19, 2026	201-500	217 contacts →
	Indirect evidence “Company Overview: TRILITY is an established industry leader, dedicated in the delivery of water, wastewater, reuse and bio-solids solutions across Australia and New Zealand’s…” Source: RevenueBase Database · checked Sep 19, 2026
10	ACE Contractors Group Pty. LTD	Partial evidence	Nunawading, AustraliaHQ checked Sep 19, 2026	201-500	205 contacts →
	Partial evidence “Ace Contractors Group Pty.” Source: RevenueBase Database · checked Sep 19, 2026
11	Pensar	Partial evidence	Hamilton, AustraliaHQ checked Sep 19, 2026	201-500	198 contacts →
	Partial 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 19, 2026
12	PSD Energy	Indirect evidence	Pooraka, AustraliaHQ checked Sep 19, 2026	201-500	140 contacts →
	Indirect evidence “PSD Energy’s distinctive operating model (EPC+) combines in-house engineering, manufacturing and system integration, construction and commissioning, supported by a global supply…” Source: RevenueBase Database · checked Sep 19, 2026
13	MONDO	Indirect evidence	Southbank, AustraliaHQ checked Sep 19, 2026	501-1,000	131 contacts →
	Indirect evidence “At Mondo, we see a bright future.” Source: RevenueBase Database · checked Sep 19, 2026
14	ROB Carr PTY LTD	Strong evidence	Yatala, AustraliaHQ checked Sep 19, 2026	51-200	115 contacts →
	Strong evidence “Rob Carr offers advanced technical capabilities for utilities infrastructure and is recognised as a market leader in microtunnelling and other complex underground works across all…” Source: RevenueBase Database · checked Sep 19, 2026
15	UCS Group	Indirect evidence	Bendigo, AustraliaHQ checked Sep 19, 2026	201-500	107 contacts →
	Indirect evidence “Founded in 1995 in Bendigo, Victoria, Underground Cable Systems rebranded in 2019 to become UCS Group (UCS).” Source: RevenueBase Database · checked Sep 19, 2026
16	Powerplant Project Services	Strong evidence	Hallam, AustraliaHQ checked Sep 19, 2026	51-200	103 contacts →
	Strong evidence “Powerplant Project Services is an award winning, independent utility infrastructure specialist.” Source: RevenueBase Database · checked Sep 19, 2026
17	CMP Consulting Group	Indirect evidence	Mulgrave, AustraliaHQ checked Sep 19, 2026	51-200	94 contacts →
	Indirect 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 19, 2026
18	JAYDO	Partial evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	51-200	85 contacts →
	Partial evidence “Jaydo is a dedicated water infrastructure construction business where every member of our experienced team is committed to delivering outstanding value and service to our many…” Source: RevenueBase Database · checked Sep 19, 2026
19	J & P Richardson Industries	Partial evidence	Wacol, AustraliaHQ checked Sep 19, 2026	201-500	84 contacts →
	Partial evidence “ELECTRICAL CONTRACTORS AND ENGINEERS SINCE 1958.” Source: RevenueBase Database · checked Sep 19, 2026
20	Infrastructure Products Australia	Partial evidence	Breakwater, AustraliaHQ checked Sep 19, 2026	51-200	83 contacts →
	Partial evidence “Infrastructure Products Australia (IPA) is leading the transformation of the infrastructure industry with innovative, sustainable solutions.” Source: RevenueBase Database · checked Sep 19, 2026
21	TSA Management	Strong evidence	AustraliaHQ checked Sep 19, 2026	501-1,000	81 contacts →
	Strong evidence “We are a group of people who manage, consult and partner with industry professionals to radically improve public and private utilities and infrastructure through projects both big…” Source: RevenueBase Database · checked Sep 19, 2026
22	PPS Group	Partial evidence	Perth, AustraliaHQ checked Sep 19, 2026	201-500	81 contacts →
	Partial evidence “PPS Water Group is a proudly Australian company delivering turnkey water infrastructure solutions to the resource sector and beyond.” Source: RevenueBase Database · checked Sep 19, 2026
23	Ferrycarrig	Strong evidence	Chullora, AustraliaHQ checked Sep 19, 2026	201-500	80 contacts →
	Strong evidence “Ferrycarrig is a leading constructor of utilities and civil infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
24	Comdain Infrastructure	Partial evidence	Epping, AustraliaHQ checked Sep 19, 2026	501-1,000	80 contacts →
	Partial evidence “Comdain Infrastructure is part of the ASX 300 listed Service Stream group and has a strong reputation for innovative design, construction and maintenance solutions.” Source: RevenueBase Database · checked Sep 19, 2026
25	Vaughan Civil PTY LTD	Indirect evidence	Bondi Junction, AustraliaHQ checked Sep 19, 2026	51-200	75 contacts →
	Indirect evidence “Vaughan Civil provides our clients with innovative and cost effective solutions from the design stage through to the delivery phase a commissioning and close out of a project.” Source: RevenueBase Database · checked Sep 19, 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: utility infrastructure contractors. 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 utility infrastructure contractors.
Partial evidence: Its own public description names part of utility infrastructure contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name utility infrastructure contractors. 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 415 utility infrastructure contractors based in Australia

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Utility infrastructure contractors based in Australia at a glance

As of Sep 19, 2026

32.9%Verified-email coverage

55.0Average contacts per company

11-50Median size (employees)

6.0%Largest-city concentration · Sydney

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

113

11-50

165

51-200

102

201-500

501-1,000

1,001-5,000

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 415 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 utility infrastructure contractors, 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 “utility infrastructure contractors”. 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 utility infrastructure contractors), 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 utility infrastructure contractors, 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, 7,513 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 19, 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.

Utility infrastructure contractors by metro

Utility infrastructure contractors in Sydney25

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 utility infrastructure contractors, 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 utility infrastructure contractors are there based in Australia?

RevenueBase identified 415 utility infrastructure contractors 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?

Downer, headquartered in North Ryde, tops this list with the largest team on record.

Which city has the most utility infrastructure contractors?

Sydney leads with 25 headquartered companies, followed by Melbourne (18) and Perth (16).

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 7,513 verified decision-maker contacts tracked across these 415 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 19, 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.