Company lists · Data refreshed September 2026

Top 25 Climate tech startups based in Australia

Name: Climate tech startups based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 132 companies tracked

RevenueBase identified 132 climate tech startups headquartered in Australia as of September 2026 and tracks 1,353 professional contacts across them, including 580 with verified work emails. Sydney is the largest hub.

This list covers climate tech startups 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

132Companies

1,353Contacts tracked

580Verified emails

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The 25 largest climate tech startups based in Australia

Ranked by team size

Top 25 of 132 climate tech startups 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 climate tech startups: 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	Clean Energy Finance Corporation	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	168 contacts →
	Partial evidence “The CEFC is Australia’s specialist climate investor, helping cut emissions in the race towards net zero by 2050.” Source: RevenueBase Database · checked Sep 19, 2026
2	Calix Limited	Indirect evidence	Pymble, AustraliaHQ checked Sep 19, 2026	51-200	72 contacts →
	Indirect evidence “Calix Limited (ASX: CXL) is an environmental technology company solving urgent global challenges in industrial decarbonisation and sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
3	Energylab	Strong evidence	Haymarket, AustraliaHQ checked Sep 19, 2026	n/a	69 contacts →
	Strong evidence “EnergyLab is Australia’s leading incubator and accelerator for founders and startups launching and scaling clean energy and climate focused tech and business models.” Source: RevenueBase Database · checked Sep 19, 2026
4	Global CCS Institute	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	66 contacts →
	Indirect evidence “Our mission is to accelerate the deployment and commercial viability of carbon capture and storage (CCS) globally.” Source: RevenueBase Database · checked Sep 19, 2026
5	Wollemi Capital	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	42 contacts →
	Partial evidence “Wollemi Capital™ is a global climate specialist investment firm.” Source: RevenueBase Database · checked Sep 19, 2026
6	MCI Carbon	Indirect evidence	Mayfield West, AustraliaHQ checked Sep 19, 2026	11-50	42 contacts →
	Indirect evidence “MCi Carbon (MCi) is a world-leading and award-winning Australian clean technology transforming carbon dioxide (CO2) into building products and materials for the circular carbon…” Source: RevenueBase Database · checked Sep 19, 2026
7	Core Markets	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	35 contacts →
	Indirect evidence “CORE Markets provides market intelligence, advisory and transaction services across power, carbon and environmental markets - serving commercial decision-makers through the energy…” Source: RevenueBase Database · checked Sep 19, 2026
8	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
9	Co2crc Limited	Indirect evidence	East Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect evidence “CO2CRC is Australia’s leading carbon capture, utilisation and storage research organisation with over 20 years of experience safely capturing, storing and monitoring CO2.” Source: RevenueBase Database · checked Sep 19, 2026
10	Envirogroup	Indirect evidence	Coburg North, AustraliaHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “EnviroGroup EnviroGroup is a specialist provider of renewable energy products and systems for commercial applications, government clients and residential home owners.” Source: RevenueBase Database · checked Sep 19, 2026
11	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
12	Greenhouse	Strong evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	19 contacts →
	Strong evidence “Greenhouse is a climate action ecosystem operating Australia's largest dedicated climate tech hub in Sydney's CBD.” Source: RevenueBase Database · checked Sep 19, 2026
13	Incitias	Indirect evidence	Alphington, AustraliaHQ checked Sep 19, 2026	11-50	17 contacts →
	Indirect evidence “INCITIAS is a global engineering and commercial service provider, facilitating energy transition projects for our clients.” Source: RevenueBase Database · checked Sep 19, 2026
14	Kinesis	Strong evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	15 contacts →
	Strong evidence “Kinesis is a leading climate tech business that helps organisations step-change their net-zero impact.” Source: RevenueBase Database · checked Sep 19, 2026
15	NSW Decarbonisation Innovation HUB	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	15 contacts →
	Indirect evidence “The NSW Decarbonisation Innovation Hub connects researchers, industry & government stakeholders to collaborate and support innovation of new technologies to decarbonise NSW and…” Source: RevenueBase Database · checked Sep 19, 2026
16	Polar Enviro	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	1-10	14 contacts →
	Indirect evidence “Polar Enviro is the umbrella brand for Smarterlite, Safety Path, OmniGrip Direct and Vivacity.” Source: RevenueBase Database · checked Sep 19, 2026
17	Carbon Growth Partners	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “We are a leading investor in the global carbon markets.” Source: RevenueBase Database · checked Sep 19, 2026
18	Conry Tech	Partial evidence	Chirnside Park, AustraliaHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “Conry Tech is reinventing air conditioning to make comfort sustainable.” Source: RevenueBase Database · checked Sep 19, 2026
19	Virescent Ventures	Strong evidence	Sydney & Melbourne, AustraliaHQ checked Sep 19, 2026	1-10	13 contacts →
	Strong evidence “Virescent Ventures is a specialist climate tech transition fund.” Source: RevenueBase Database · checked Sep 19, 2026
20	Common Capital	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	11 contacts →
	Partial evidence “Common Capital is a specialist climate, energy, policy and economics firm.” Source: RevenueBase Database · checked Sep 19, 2026
21	The Mullion Group	Indirect evidence	Canberra, AustraliaHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “The Mullion Group is an Australian based software and consulting company, internationally recognised for its expertise in greenhouse gas inventory systems for the land sector.” Source: RevenueBase Database · checked Sep 19, 2026
22	Twynam	Strong evidence	Darlinghurst, AustraliaHQ checked Sep 19, 2026	1-10	10 contacts →
	Strong evidence “We are Twynam, a Climate tech venture capital firm backing founders globally with novel technologies to decarbonise our Earth.” Source: RevenueBase Database · checked Sep 19, 2026
23	Climatalist	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	9 contacts →
	Partial evidence “Climatalist is a venture studio building and scaling companies that solve critical challenges in the climate transition.” Source: RevenueBase Database · checked Sep 19, 2026
24	Sensand	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence “At Sensand, we integrate technology to create innovative solutions for the world's land management markets.” Source: RevenueBase Database · checked Sep 19, 2026
25	LOW Emission Technology Australia	Indirect evidence	Canberra, AustraliaHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Low Emission Technology Australia (LETA) is a not-for-profit investment fund that accelerates the development and large-scale deployment of technology solutions to reduce and…” 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: climate tech startups. 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 climate tech startups.
Partial evidence: Its own public description names part of climate tech startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate tech startups. 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 132 climate tech startups based in Australia

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Climate tech startups based in Australia at a glance

As of Sep 19, 2026

42.9%Verified-email coverage

10.2Average contacts per company

1-10Median size (employees)

29.5%Largest-city concentration · Sydney

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 132 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 climate tech startups, 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 “climate tech startups”. 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 climate tech startups), 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 climate tech startups, 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, 580 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.

Climate tech startups by metro

Climate tech startups in Sydney39
Climate tech startups in Melbourne27

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 climate tech startups, 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 climate tech startups are there based in Australia?

RevenueBase identified 132 climate tech startups 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?

Clean Energy Finance Corporation, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most climate tech startups?

Sydney leads with 39 headquartered companies, followed by Melbourne (27) and Perth (11).

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 580 verified decision-maker contacts tracked across these 132 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.