Company lists · Data verified August 2026

Top 25 Climate change consulting firms based in Australia

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 731 companies tracked

There are 731 climate change consulting firms headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 7,541 professional contacts across them, including 3,566 with verified work emails and 586 with mobile numbers. Sydney is the largest hub.

This list covers climate change consulting firms 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.

731Companies

7,541Contacts tracked

3,566Verified emails

586Mobile numbers

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The 25 largest climate change consulting firms based in Australia

Ranked by team size

Top 25 of 731 climate change consulting firms 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	Umwelt Environmental & Social Consultants	Melbourne	201-500	326	234
3	Jbs&g	Perth	201-500	264	225
4	ECO Logical Australia PTY LTD	Huskisson	201-500	221	119
5	Pollination	Sydney	51-200	138	102
6	Blunomy	Melbourne	51-200	123	80
7	The Gild Group	Mooloolaba	51-200	108	77
8	Energetics	North Sydney	51-200	95	63
9	Edge Impact	Melbourne	51-200	84	52
10	RMCG	Camberwell	51-200	79	65
11	Rennie	Sydney	51-200	78	66
12	Pinion Advisory	Mildura	51-200	77	54
13	Acacia Environmental Management	St. Andrews	201-500	59	32
14	Struber	Melbourne	51-200	54	42
15	Icubed Consulting	Brisbane	51-200	53	38
16	Western Environmental	Richmond	51-200	52	1
17	Element Advisory Part Of SLR	Perth	51-200	50	22
18	MRA Consulting Group	Drummoyne	11-50	49	37
19	Environmental Earth Sciences International Eesi	Chatswood	51-200	49	29
20	Marsden Jacob Associates	North Sydney	11-50	46	34
21	BWD Strategic	Sydney	11-50	43	28
22	RHELM	Newcastle West	11-50	39	32
23	ITP Renewables	Sydney	11-50	37	25
24	Assured Environmental AE	Alexandria	11-50	33	21
25	CAF Consulting	Shepparton	11-50	32	23

Showing 25 of 731 climate change consulting firms based in Australia

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Climate change consulting firms based in Australia at a glance

As of Aug 28, 2026

1-10Median size (employees)

SydneyLargest hub · 117 HQs

586Contacts with mobile numbers

19Emails re-verified in last 30 days

Companies by employee count

1-10

552

11-50

133

51-200

201-500

1,001-5,000

5,001-10,000

10001+

Climate change consulting firms by metro

Metro	Companies
Climate change consulting firms in Sydney	117
Climate change consulting firms in Melbourne	109
Climate change consulting firms in Brisbane	63
Climate change consulting firms in Perth	63
Climate change consulting firms in Adelaide	25
Climate change consulting firms in Newcastle	13
Climate change consulting firms in Canberra	11

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 change consulting firms”, 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; 19 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 change consulting firms are there based in Australia?

There are 731 climate change consulting firms 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 change consulting firms?

Sydney leads with 117 headquartered companies, followed by Melbourne (109) and Brisbane (63).

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 3,566 verified decision-maker contacts tracked across these 731 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.