Company lists · Data refreshed September 2026

Top 25 Clean tech companies based in Sydney, Australia

Name: Clean tech companies based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 64 companies tracked

RevenueBase identified 64 clean tech companies headquartered in Sydney, Australia as of September 2026 and tracks 364 professional contacts across them, including 118 with verified work emails. Melbourne is the largest hub.

This list covers clean tech companies 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 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

64Companies

364Contacts tracked

118Verified emails

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The 25 largest clean tech companies based in Sydney, Australia

Ranked by team size

Top 25 of 64 clean tech companies based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to clean tech companies: 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	Corporate Carbon	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	34 contacts →
	Indirect evidence “Sustainable planet.” Source: RevenueBase Database · checked Sep 19, 2026
2	Iberdrola Australia Smart Energy Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	21 contacts →
	Indirect evidence “In 2021, Autonomous Energy became part of the Iberdrola Australia group.” Source: RevenueBase Database · checked Sep 19, 2026
3	Banpu Energy Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “Welcome to Banpu Energy Australia.” Source: RevenueBase Database · checked Sep 19, 2026
4	Energylink Services PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “EnergyLink Services is a multi-disciplinary, specialist, energy and carbon consultancy and project developer.” Source: RevenueBase Database · checked Sep 19, 2026
5	Energy Estate	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect 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 19, 2026
6	Kinesis	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Kinesis is a leading climate tech business that helps organisations step-change their net-zero impact.” Source: RevenueBase Database · checked Sep 19, 2026
7	E-Green Electrical	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “E-Green Electrical are the pioneers in energy efficiency.” Source: RevenueBase Database · checked Sep 19, 2026
8	Maoneng	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Our mission, as a world-class renewable energy investment and development company is to support the transition of economies around the globe from fossil fuel to renewable energy…” Source: RevenueBase Database · checked Sep 19, 2026
9	Core Energy Solutions	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “At Core Energy Solutions, we are dedicated to providing clean and sustainable energy solutions to our customers.” Source: RevenueBase Database · checked Sep 19, 2026
10	Voltio	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Voltio is a high-precision energy management platform built for the businesses that keep Australia's energy market running, retailers, embedded network operators, and market…” Source: RevenueBase Database · checked Sep 19, 2026
11	Zoom Energy	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Building on over 10 years of expertise in energy conservation, Zoom Energy delivers energy efficiency outcomes for a vast number of our customers across the residential…” Source: RevenueBase Database · checked Sep 19, 2026
12	Flexigen PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect 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 19, 2026
13	Blue Energy Solutions Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect evidence “Blue Energy Solutions Australia (BESA) are a group of professionals determined to make a difference to the energy sector.” Source: RevenueBase Database · checked Sep 19, 2026
14	70 Ways	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	5 contacts →
	Indirect 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 19, 2026
15	Verdia	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	5 contacts →
	Indirect evidence “Verdia is an energy services company helping large businesses implement renewable energy and energy efficiency projects that create value, reduce costs and achieve environmental…” Source: RevenueBase Database · checked Sep 19, 2026
16	Smart ECO Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “The Smart Eco Group is distinguished, among others, for an unequivocal philosophy towards the practice of eco-efficient architecture.” Source: RevenueBase Database · checked Sep 19, 2026
17	Your Energy Media	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “Your Energy Media, the dedicated Media & Marketing Agency promoting renewable energy and sustainable solutions.” Source: RevenueBase Database · checked Sep 19, 2026
18	Anávo Renewable Energy Recruitment	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Anávo is the Global Recruitment Agency specialising in Renewable Energy, Environment, and Sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
19	ASV Solar & Battery Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “ASV Solar was built with the ethos of honesty and quality first in an industry that has been inundated with companies riding the wave of a booming trade.” Source: RevenueBase Database · checked Sep 19, 2026
20	Industry Tech	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Industry Tech stands at the forefront of technological innovation with a clear and compelling mission: to solve our clients' challenges through the most innovative and…” Source: RevenueBase Database · checked Sep 19, 2026
21	Careers For Purpose	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Careers For Purpose is a specialist talent search firm working at the forefront of the decarbonisation economy across cleantech, sustainability, climate solutions and impact.” Source: RevenueBase Database · checked Sep 19, 2026
22	Onsolar Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	2 contacts →
	Indirect evidence “As one of Australia’s leading solar and electrical groups completing over 125 successful solar installations each week, we are regarded as PREMIUM solar experts.” Source: RevenueBase Database · checked Sep 19, 2026
23	Ltmd Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “At LTMD Solutions, we manage all things solar and renewable.” Source: RevenueBase Database · checked Sep 19, 2026
24	SOLAI	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “At SOLAI, we're building the energy infrastructure of tomorrow.” Source: RevenueBase Database · checked Sep 19, 2026
25	Watergate	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	1 contacts →
	Partial evidence “At Watergate, we are committed to promoting sustainable and clean energy solutions that can power entire communities, whether in remote locations or emergency situations.” 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: clean tech companies. 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 tech companies.
Partial evidence: Its own public description names part of clean tech companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clean tech companies. 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 64 clean tech companies based in Sydney, Australia

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Clean tech companies based in Sydney, Australia at a glance

As of Sep 19, 2026

32.4%Verified-email coverage

5.7Average contacts per company

1-10Median size (employees)

132.8%Largest-city concentration · Melbourne

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 64 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 clean tech companies, 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 tech companies”. 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 tech companies), 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 tech companies, 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, 118 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.

Clean tech companies by metro in Australia

Clean tech companies in Melbourne85
Clean tech companies in Sydney64
Clean tech companies in Brisbane27

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 tech companies, 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 tech companies are there based in Sydney, Australia?

RevenueBase identified 64 clean tech companies 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?

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

Which city has the most clean tech companies?

Melbourne leads with 85 headquartered companies, followed by Sydney (64) and Brisbane (27).

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 118 verified decision-maker contacts tracked across these 64 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.