Company lists · Data refreshed September 2026

Top 25 Energy infrastructure operators based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 185 companies tracked

RevenueBase identified 185 energy infrastructure operators headquartered in Australia as of September 2026 and tracks 38,181 professional contacts across them, including 14,798 with verified work emails. Perth is the largest hub.

This list covers energy infrastructure operators 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 16, 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 16, 2026 86% judged on-target in blind review

185Companies

38,181Contacts tracked

14,798Verified emails

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The 25 largest energy infrastructure operators based in Australia

Ranked by team size

Top 25 of 185 energy infrastructure operators based in Australia, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure operators: 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 16, 2026	10001+	10,666 contacts →
	Indirect evidence “Enabling communities to thrive.” Source: RevenueBase Database · checked Sep 16, 2026
2	APA Group	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1,001-5,000	2,679 contacts →
	Partial evidence “At APA, we’re taking on one of Australia’s greatest challenges: the energy transition.” Source: RevenueBase Database · checked Sep 16, 2026
3	Energy Queensland	Partial evidence	Newstead, AustraliaHQ checked Sep 16, 2026	5,001-10,000	2,430 contacts →
	Partial evidence “Energy Queensland formed in 2016 with the merger of Ergon Energy and Energex, creating a single energy company that powers communities from Tweed Heads up to the Torres Strait and…” Source: RevenueBase Database · checked Sep 16, 2026
4	Ausgrid	Indirect evidence	Haymarket, AustraliaHQ checked Sep 16, 2026	1,001-5,000	2,341 contacts →
	Indirect evidence “Ausgrid is Australia's largest distributor of electricity, provided products and services to 1.7 million customers in Sydney, the Hunter and the Central Coast.” Source: RevenueBase Database · checked Sep 16, 2026
5	SRG Global	Partial evidence	Perth, AustraliaHQ checked Sep 16, 2026	1,001-5,000	2,289 contacts →
	Partial evidence “SRG Global is a diversified infrastructure services company.” Source: RevenueBase Database · checked Sep 16, 2026
6	Service Stream	Indirect evidence	Docklands, AustraliaHQ checked Sep 16, 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 16, 2026
7	Ausnet	Partial evidence	Southbank, AustraliaHQ checked Sep 16, 2026	1,001-5,000	1,731 contacts →
	Partial evidence “We're Australia's largest diversified energy networks business connecting communities with reliable, affordable and sustainable energy.” Source: RevenueBase Database · checked Sep 16, 2026
8	Ergon Energy Network	Partial evidence	Townsville, AustraliaHQ checked Sep 16, 2026	1,001-5,000	1,553 contacts →
	Partial evidence “Ergon Energy supplies electricity to customers across a vast operating area of more than one million square kilometres – around 97% of the state of Queensland – from the expanding…” Source: RevenueBase Database · checked Sep 16, 2026
9	Citipower And Powercor	Indirect evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	1,001-5,000	1,470 contacts →
	Indirect evidence “CitiPower and Powercor own and operate electricity distribution networks servicing 1.2 million customers while also enabling the renewable generation essential to transition to a…” Source: RevenueBase Database · checked Sep 16, 2026
10	Zinfra	Strong evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	1,001-5,000	1,221 contacts →
	Strong evidence “At Zinfra, our purpose is to be the leading and trusted delivery partner, making a positive contribution to Australia’s energy infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026
11	Endeavour Energy NSW	Partial evidence	Parramatta, AustraliaHQ checked Sep 16, 2026	1,001-5,000	1,165 contacts →
	Partial evidence “Endeavour Energy is a safety focused and customer-centred business determined to be the best performing network in Australia.” Source: RevenueBase Database · checked Sep 16, 2026
12	Snowy Hydro	Partial evidence	Cooma, AustraliaHQ checked Sep 16, 2026	501-1,000	912 contacts →
	Partial evidence “From generation to wholesale and retail, Snowy Hydro is an Australian-owned end-to-end energy company that has been at the centre of Australian energy reliability since the…” Source: RevenueBase Database · checked Sep 16, 2026
13	CS Energy	Partial evidence	Fortitude Valley, AustraliaHQ checked Sep 16, 2026	501-1,000	729 contacts →
	Partial evidence “CS Energy is a proudly Queensland-owned and based energy company that provides power to some of our state’s biggest industries and employers.” Source: RevenueBase Database · checked Sep 16, 2026
14	Electranet PTY LTD	Strong evidence	Adelaide, AustraliaHQ checked Sep 16, 2026	501-1,000	539 contacts →
	Strong evidence “ElectraNet is a specialist in electricity transmission, providing energy and infrastructure solutions across Australia.” Source: RevenueBase Database · checked Sep 16, 2026
15	Scee Electrical	Partial evidence	Perth, AustraliaHQ checked Sep 16, 2026	1,001-5,000	454 contacts →
	Partial evidence “SCEE Electrical is a leading and trusted national provider of specialised electrical, instrumentation, maintenance and communication services to the resources and infrastructure…” Source: RevenueBase Database · checked Sep 16, 2026
16	Nacap PTY LTD	Strong evidence	Doncaster, AustraliaHQ checked Sep 16, 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 16, 2026
17	Enerven	Partial evidence	Adelaide, AustraliaHQ checked Sep 16, 2026	501-1,000	402 contacts →
	Partial evidence “At Enerven, we’re focused on connecting you with tomorrow.” Source: RevenueBase Database · checked Sep 16, 2026
18	Atco Australia	Strong evidence	Perth, AustraliaHQ checked Sep 16, 2026	51-200	240 contacts →
	Strong evidence “ATCO's Australian operations are headquartered in Perth, Western Australia and specialises in creating innovative, customer focused energy and infrastructure solutions.” Source: RevenueBase Database · checked Sep 16, 2026
19	GR Production Services	Partial evidence	Perth, AustraliaHQ checked Sep 16, 2026	201-500	176 contacts →
	Partial evidence “GR Production Services (GRPS) operate and maintain energy and resource production assets for Tier 1, 2 and 3 clients.” Source: RevenueBase Database · checked Sep 16, 2026
20	Evoenergy ACT	Partial evidence	Canberra, AustraliaHQ checked Sep 16, 2026	201-500	154 contacts →
	Partial evidence “Evoenergy is Canberra’s local energy distributor, delivering energy to Canberra and the surrounding region.” Source: RevenueBase Database · checked Sep 16, 2026
21	MONDO	Indirect evidence	Southbank, AustraliaHQ checked Sep 16, 2026	501-1,000	131 contacts →
	Indirect evidence “At Mondo, we see a bright future.” Source: RevenueBase Database · checked Sep 16, 2026
22	Mirait Technologies Australia	Strong evidence	Campbellfield, AustraliaHQ checked Sep 16, 2026	51-200	110 contacts →
	Strong evidence “MIRAIT Technologies Australia is a national telecommunications, energy, and ICT infrastructure construction and maintenance provider, with an established reputation for technical…” Source: RevenueBase Database · checked Sep 16, 2026
23	Powerplant Project Services	Partial evidence	Hallam, AustraliaHQ checked Sep 16, 2026	51-200	103 contacts →
	Partial evidence “Powerplant Project Services is an award winning, independent utility infrastructure specialist.” Source: RevenueBase Database · checked Sep 16, 2026
24	Acle Services PTY LTD	Partial evidence	Camberwell, AustraliaHQ checked Sep 16, 2026	51-200	88 contacts →
	Partial evidence “At ACLE, we transform renewable energy vision into reality.” Source: RevenueBase Database · checked Sep 16, 2026
25	AZZO	Partial evidence	Tonsley Innovation District, AustraliaHQ checked Sep 16, 2026	51-200	82 contacts →
	Partial evidence “AZZO is an energy technology & services company that helps unlock the full potential of our customer’s energy ecosystem.” Source: RevenueBase Database · checked Sep 16, 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: energy infrastructure operators. 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 energy infrastructure operators.
Partial evidence: Its own public description names part of energy infrastructure operators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure operators. 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 185 energy infrastructure operators based in Australia

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Energy infrastructure operators based in Australia at a glance

As of Sep 16, 2026

38.8%Verified-email coverage

206.4Average contacts per company

11-50Median size (employees)

7.0%Largest-city concentration · Perth

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 185 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 energy infrastructure operators, 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 “energy infrastructure operators”. 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 energy infrastructure operators), 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 energy infrastructure operators, 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, 14,798 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 16, 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.

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 energy infrastructure operators, 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 energy infrastructure operators are there based in Australia?

RevenueBase identified 185 energy infrastructure operators 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 energy infrastructure operators?

Perth leads with 13 headquartered companies, followed by Melbourne (12) and Sydney (12).

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 14,798 verified decision-maker contacts tracked across these 185 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 16, 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.