Company lists · Data refreshed September 2026

Top 25 Energy consulting firms based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 581 companies tracked

RevenueBase identified 581 energy consulting firms headquartered in Australia as of September 2026 and tracks 41,863 professional contacts across them, including 14,746 with verified work emails and 4,778 with mobile numbers. Sydney is the largest hub.

This list covers energy consulting firms 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

581Companies

41,863Contacts tracked

14,746Verified emails

4,778Mobile numbers

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The 25 largest energy consulting firms based in Australia

Ranked by team size

Top 25 of 581 energy consulting firms based in Australia, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to energy consulting firms: 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	Worley	Partial evidence	Sydney, Australia	10001+	36,380 contacts →
	Partial evidence “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Source: RevenueBase Database · checked Sep 2, 2026
2	Photon Energy Group	Partial evidence	Sydney, Australia	201-500	408 contacts →
	Partial evidence “Photon Energy Group is a group of companies with a shared mission: making clean energy, clean water and clean environments accessible to all.” Source: RevenueBase Database · checked Sep 2, 2026
3	Equinox Engineering LTD	Indirect evidence	Brisbane, Australia	201-500	391 contacts →
	Indirect evidence “Established in 1997, Equinox is a distinguished EPCM service provider globally.” Source: RevenueBase Database · checked Sep 2, 2026
4	GPA Engineering	Indirect evidence	Berrimah, Australia	201-500	341 contacts →
	Indirect evidence “A highly experienced, multidisciplinary engineering and management firm, GPA has consulted and provided engineering, procurement and construction management (EPCM) services, since…” Source: RevenueBase Database · checked Sep 2, 2026
5	MONDO	Indirect evidence	Ringwood, Australia	501-1,000	131 contacts →
	Indirect evidence “At Mondo, we see a bright future.” Source: RevenueBase Database · checked Sep 2, 2026
6	ZEMBL	Partial evidence	Sydney, Australia	51-200	129 contacts →
	Partial evidence “We help businesses buy better energy, saving them time and improving their bottom line.” Source: RevenueBase Database · checked Sep 2, 2026
7	AZZO	Partial evidence	District, Australia	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 2, 2026
8	Energy Action	Partial evidence	Sydney, Australia	51-200	77 contacts →
	Partial evidence “At Energy Action, we help your business cut energy costs and reduce emissions, paving the way to a net zero future without breaking the bank.” Source: RevenueBase Database · checked Sep 2, 2026
9	Kerfoot PTY LTD	Indirect evidence	Seven Hills, Australia	51-200	61 contacts →
	Indirect evidence “Kerfoot combines the customer service ethos of a family-owned business with the innovative ideas and professional business practices of a modern, forward-thinking organisation.” Source: RevenueBase Database · checked Sep 2, 2026
10	Western Environmental	Indirect evidence	Richmond, Australia	51-200	52 contacts →
	Indirect evidence “We’re extraordinary consultants who protect and enhance the environment and value our community.” Source: RevenueBase Database · checked Sep 2, 2026
11	Stepchange	Partial evidence	Perth, Australia	51-200	43 contacts →
	Partial evidence “LOCAL PEOPLE: GLOBAL EXPERTISE StepChange: Empowering Transformation in the Digital Era StepChange, your trusted technology and business consulting partner, has been at the…” Source: RevenueBase Database · checked Sep 2, 2026
12	Global Power Energy	Partial evidence	Brisbane, Australia	11-50	41 contacts →
	Partial evidence “Global Power Energy is an energy advisory company that is seeking to help its clients be successful in the energy transition.” Source: RevenueBase Database · checked Sep 2, 2026
13	Power Choice	Partial evidence	Stafford, Australia	11-50	39 contacts →
	Partial evidence “Power Choice is an Aeco Pacific Company operating in Technology and Energy markets since 2009.” Source: RevenueBase Database · checked Sep 2, 2026
14	Solar Naturally	Partial evidence	Perth, Australia	51-200	39 contacts →
	Partial evidence “Solar Naturally is a leading provider of solar energy systems in Western Australia for both residential and commercial solutions.” Source: RevenueBase Database · checked Sep 2, 2026
15	ITP Renewables	Partial evidence	Sydney, Australia	11-50	37 contacts →
	Partial evidence “ITP Renewables is Australia’s longest-running, independent, renewable energy consultancy.” Source: RevenueBase Database · checked Sep 2, 2026
16	Renewables Technical Services	Indirect evidence	Bondi Junction, Australia	51-200	34 contacts →
	Indirect evidence “At RTS, we are dedicated to powering a sustainable future for Australia.” Source: RevenueBase Database · checked Sep 2, 2026
17	Kuga Energy	Partial evidence	Keysborough, Australia	51-200	33 contacts →
	Partial evidence “In a world where rising energy costs and tightening margins are pressuring businesses, Kuga Energy is leading a revolution.” Source: RevenueBase Database · checked Sep 2, 2026
18	Austec Building Automation	Indirect evidence	Townsville, Australia	51-200	30 contacts →
	Indirect evidence “Austec Building Automation has been built on the principles of innovation and reliability coupled with the development of strong personal relationships.” Source: RevenueBase Database · checked Sep 2, 2026
19	GEM Energy	Partial evidence	Pinkenba, Australia	51-200	30 contacts →
	Partial evidence “Professionals in renewable energy consultancy, photo-voltaic engineering, electrical engineering, energy efficiency audits, financial feasibility analysis and integration of…” Source: RevenueBase Database · checked Sep 2, 2026
20	Lidiar Group	Partial evidence	Darwin City, Australia	11-50	29 contacts →
	Partial evidence “Lidiar Group believes that strategically sized service providers to the energy, resources and infrastructure sectors should have excellent front-end horsepower and project…” Source: RevenueBase Database · checked Sep 2, 2026
21	Energy Intelligence	Strong evidence	Hawthorn East, Australia	11-50	26 contacts →
	Strong evidence “Privately owned energy consulting firm providing energy management services to large commercial electricity users.” Source: RevenueBase Database · checked Sep 2, 2026
22	Arche Energy	Partial evidence	Launceston, Australia	11-50	23 contacts →
	Partial evidence “Arche Energy is a clean energy, power and infrastructure advisory providing a depth of experience to the investment community as it develops and executes clean energy, power…” Source: RevenueBase Database · checked Sep 2, 2026
23	Trans Tasman Energy Group	Strong evidence	Fitzroy, Australia	51-200	21 contacts →
	Strong evidence “Trans Tasman Energy Group is a specialised energy consulting firm.” Source: RevenueBase Database · checked Sep 2, 2026
24	Bonlec PTY LTD	Partial evidence	Townsville, Australia	11-50	21 contacts →
	Partial evidence “Bonlec is a specialist electrical contractor delivering innovative electrical control and energy efficiency solutions for clients throughout regional Queensland.” Source: RevenueBase Database · checked Sep 2, 2026
25	Cutlermerz	Partial evidence	Sydney, Australia	11-50	19 contacts →
	Partial evidence “We are a specialist management, economic and engineering consultancy to the power and energy sector.” Source: RevenueBase Database · checked Sep 2, 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 consulting firms. 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 consulting firms.
Partial evidence: Its own public description names part of energy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy consulting firms. 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 581 energy consulting firms based in Australia

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Energy consulting firms based in Australia at a glance

As of Sep 2, 2026

35.2%Verified-email coverage

11.4%Mobile-number coverage

72.1Average contacts per company

1-10Median size (employees)

14.6%Largest-city concentration · Sydney

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

397

11-50

143

51-200

201-500

501-1,000

1,001-5,000

10001+

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 consulting firms, 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 consulting firms”. 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 consulting firms), 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 consulting firms, 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, 14,746 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 2, 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.

Energy consulting firms by metro

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 consulting firms, 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 consulting firms are there based in Australia?

RevenueBase identified 581 energy consulting firms 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?

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

Which city has the most energy consulting firms?

Sydney leads with 85 headquartered companies, followed by Melbourne (73) and Brisbane (53).

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 14,746 verified decision-maker contacts tracked across these 581 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 2, 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.