Company lists · Data refreshed September 2026

Top 25 Clean energy consulting firms based in Sydney, Australia

Name: Clean energy consulting firms based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 8, 2026 110 companies tracked

RevenueBase identified 110 clean energy consulting firms headquartered in Sydney, Australia as of September 2026 and tracks 35,325 professional contacts across them, including 12,533 with verified work emails and 4,259 with mobile numbers. Sydney is the largest hub.

This list covers clean energy consulting firms 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 8, 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 8, 2026 86% judged on-target in blind review

110Companies

35,325Contacts tracked

12,533Verified emails

4,259Mobile numbers

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The 25 largest clean energy consulting firms based in Sydney, Australia

Ranked by team size

Top 25 of 110 clean energy consulting firms based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to clean 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, AustraliaHQ checked Sep 8, 2026	10001+	34,763 contacts →
	Partial evidence “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Source: RevenueBase Database · checked Sep 8, 2026
2	Athena Blue Global	Indirect evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	26 contacts →
	Indirect evidence “Athena Blue Global helps shape a better future for forward-thinking businesses worldwide.” Source: RevenueBase Database · checked Sep 8, 2026
3	Edsico Management	Indirect evidence	Sydney, AustraliaHQ checked Sep 8, 2026	51-200	23 contacts →
	Indirect evidence “With decades of experience, EDSICO Management provides fully integrated range of management consultancy services.” Source: RevenueBase Database · checked Sep 8, 2026
4	Leading Edge Energy	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	21 contacts →
	Partial evidence “What we do Leading Edge Energy is an integrated energy management consultancy powered by the latest technology to offer market-leading energy solutions for your business.” Source: RevenueBase Database · checked Sep 8, 2026
5	Energylink Services PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	18 contacts →
	Partial evidence “EnergyLink Services is a multi-disciplinary, specialist, energy and carbon consultancy and project developer.” Source: RevenueBase Database · checked Sep 8, 2026
6	Energy Estate	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	16 contacts →
	Partial evidence “Energy Estate’s mission is to accelerate decarbonisation, in a manner that drives innovation and delivers with respect and impact.” Source: RevenueBase Database · checked Sep 8, 2026
7	Renewco Solar	Indirect evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	16 contacts →
	Indirect evidence “At RenewCo Solar we pride ourselves on the work we do.” Source: RevenueBase Database · checked Sep 8, 2026
8	Energy Global Company	Strong evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	15 contacts →
	Strong evidence “Established in March 2017, Energy Global Company Pty Ltd (EGC) has been building and providing consulting services to retail energy businesses across the globe.” Source: RevenueBase Database · checked Sep 8, 2026
9	Fichtner Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	13 contacts →
	Indirect evidence “The Fichtner Group is one of the leading independent engineering consultancy firms in the world.” Source: RevenueBase Database · checked Sep 8, 2026
10	100 Renewables	Indirect evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	12 contacts →
	Indirect evidence “100% Renewables is a national consultancy specialising in the development of Climate Action Strategies for business, including pathways to net zero emissions.” Source: RevenueBase Database · checked Sep 8, 2026
11	Common Capital	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	11 contacts →
	Partial evidence “Common Capital is a specialist climate, energy, policy and economics firm.” Source: RevenueBase Database · checked Sep 8, 2026
12	E-Green Electrical	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	11 contacts →
	Partial evidence “E-Green Electrical are the pioneers in energy efficiency.” Source: RevenueBase Database · checked Sep 8, 2026
13	Helixos	Indirect evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	10 contacts →
	Indirect evidence “We work with startups, research organisations, investors, governments, and end users to commercialise cleantech and implement it through business strategy, communications, and…” Source: RevenueBase Database · checked Sep 8, 2026
14	Sphere Infrastructure Partners	Indirect evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	7 contacts →
	Indirect evidence “Sphere was founded in 2018 in recognition of the need for advisors with specific environmental sector experience, development capability and expertise in delivering complex…” Source: RevenueBase Database · checked Sep 8, 2026
15	Pure Environment	Indirect evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	6 contacts →
	Indirect evidence “We are a dedicated consultancy driven by a profound commitment to fostering sustainability across diverse sectors, including construction, commercial, industrial, and financial…” Source: RevenueBase Database · checked Sep 8, 2026
16	Core Energy Solutions	Strong evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	6 contacts →
	Strong evidence “At Core Energy Solutions, we are dedicated to providing clean and sustainable energy solutions to our customers.” Source: RevenueBase Database · checked Sep 8, 2026
17	Flexigen PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	5 contacts →
	Partial evidence “Flexigen delivers innovative engineering solutions across industrial and manufacturing sectors, specialising in energy efficiency, renewable energy, and process optimisation.” Source: RevenueBase Database · checked Sep 8, 2026
18	Infrafuture	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	5 contacts →
	Partial evidence “We are a specialist in the energy and water sectors across major projects and business operations.” Source: RevenueBase Database · checked Sep 8, 2026
19	70 Ways	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	5 contacts →
	Partial evidence “70 Ways is at the forefront of ushering businesses into a sustainable future, recognizing the complex challenges posed by the evolving landscape of energy, environment, and safety.” Source: RevenueBase Database · checked Sep 8, 2026
20	Kean Energy PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	4 contacts →
	Partial evidence “Kean Energy is a consultancy based in Australia with presence in Philippines and the Fiji Islands.” Source: RevenueBase Database · checked Sep 8, 2026
21	Team Catalyst	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	4 contacts →
	Partial evidence “We help buildings reduce greenhouse emissions by improving energy efficiency and occupant comfort!” Source: RevenueBase Database · checked Sep 8, 2026
22	Cress Consulting PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	51-200	4 contacts →
	Partial evidence “Cress Consulting is committed to finding the right solutions to help you achieve a more sustainable, secure future.” Source: RevenueBase Database · checked Sep 8, 2026
23	Elexia Communications	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	4 contacts →
	Partial evidence “We are Australia's leading communications and stakeholder consultancy for the energy sector.” Source: RevenueBase Database · checked Sep 8, 2026
24	Your Energy Media	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	11-50	4 contacts →
	Partial evidence “Your Energy Media, the dedicated Media & Marketing Agency promoting renewable energy and sustainable solutions.” Source: RevenueBase Database · checked Sep 8, 2026
25	EME Advisory	Partial evidence	Sydney, AustraliaHQ checked Sep 8, 2026	1-10	3 contacts →
	Partial evidence “EME Advisory is a planning and environment consulting business based in Sydney and Newcastle.” Source: RevenueBase Database · checked Sep 8, 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: clean 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 clean energy consulting firms.
Partial evidence: Its own public description names part of clean 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 clean 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 110 clean energy consulting firms based in Sydney, Australia

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Clean energy consulting firms based in Sydney, Australia at a glance

As of Sep 8, 2026

35.5%Verified-email coverage

12.1%Mobile-number coverage

321.1Average contacts per company

1-10Median size (employees)

117.3%Largest-city concentration · Sydney

Sep 8, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

11,3880–30

87331–60

261–90

090–180

270180+

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 clean 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 Sydney, Australia whose own description of what they do matches “clean 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 clean 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 clean energy consulting firms, 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, 12,533 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 8, 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.

Clean energy consulting firms by metro in Australia

Clean energy consulting firms in Sydney129
Clean energy consulting firms in Melbourne118
Clean energy consulting firms in Perth79
Clean energy consulting firms in Brisbane72
Clean energy consulting firms in Adelaide39

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 clean 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 clean energy consulting firms are there based in Sydney, Australia?

RevenueBase identified 110 clean energy consulting firms 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?

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

Which city has the most clean energy consulting firms?

Sydney leads with 129 headquartered companies, followed by Melbourne (118) and Perth (79).

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 12,533 verified decision-maker contacts tracked across these 110 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 8, 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.