Company lists · Data verified August 2026

Top 25 Climate tech software companies based in Australia

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 126 companies tracked

There are 126 climate tech software companies headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 1,798 professional contacts across them, including 944 with verified work emails and 170 with mobile numbers. Sydney is the largest hub.

This list covers climate tech software companies headquartered in Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

126Companies

1,798Contacts tracked

944Verified emails

170Mobile numbers

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The 25 largest climate tech software companies based in Australia

Ranked by team size

Top 25 of 126 climate tech software companies based in Australia, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Anthesis Group	Adelaide	1,001-5,000	887	578
2	Calix Limited	Pymble	51-200	71	42
3	Gridsight	Sydney	51-200	46	31
4	Optima Technology	Melbourne	11-50	46	14
5	Core Markets	Melbourne	11-50	35	25
6	Fulcrum3d	Artarmon	11-50	31	16
7	Vela Sustainability Technologies	Brisbane	201-500	30	3
8	Gridcog	Melbourne	11-50	28	20
9	CLIMA	Sydney	11-50	24	2
10	Beez FM PTE LTD	Brisbane	11-50	18	9
11	Buildings Alive	Sydney	11-50	16	10
12	Informed 365	Currumbin Valley	11-50	16	7
13	Clear Carbon	Perth	1-10	15	8
14	Kinesis	Sydney	11-50	15	7
15	Netnada	Sydney	11-50	15	6
16	2xe	North Adelaide	11-50	14	12
17	Andefena	Sydney	11-50	13	11
18	Conry Tech	Chirnside Park	11-50	13	9
19	Avarni	Sydney	11-50	13	4
20	Virescent Ventures	Melbourne	1-10	12	9
21	The Lever Room	Melbourne	1-10	12	8
22	Solar Analytics	Redfern	11-50	12	5
23	The Mullion Group	Canberra	11-50	11	5
24	Sensand	Melbourne	11-50	9	6
25	Twynam	Darlinghurst	1-10	9	5

Showing 25 of 126 climate tech software companies based in Australia

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Climate tech software companies based in Australia at a glance

As of Aug 28, 2026

1-10Median size (employees)

SydneyLargest hub · 36 HQs

170Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Climate tech software companies by metro

Metro	Companies
Climate tech software companies in Sydney	36
Climate tech software companies in Melbourne	24
Climate tech software companies in Brisbane	9
Climate tech software companies in Perth	6
Climate tech software companies in Adelaide	5
Climate tech software companies in Canberra	3
Climate tech software companies in Richmond	2
Climate tech software companies in Port Melbourne	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “climate tech software companies”, with match quality audited by blind human judging, and headquartered in Australia.
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: Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many climate tech software companies are there based in Australia?

There are 126 climate tech software companies headquartered in Australia as of August 2026 (RevenueBase).

What is the largest company on this list?

Anthesis Group, headquartered in Adelaide, tops this list with the largest team on record.

Which city has the most climate tech software companies?

Sydney leads with 36 headquartered companies, followed by Melbourne (24) and Brisbane (9).

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 944 verified decision-maker contacts tracked across these 126 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.