Company lists · Data verified August 2026

Top 25 Clean energy consulting firms based in Australia

Name: Clean energy 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 868 companies tracked

There are 868 clean energy consulting firms headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 43,652 professional contacts across them, including 15,609 with verified work emails and 4,929 with mobile numbers. Sydney is the largest hub.

This list covers clean energy 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.

868Companies

43,652Contacts tracked

15,609Verified emails

4,929Mobile numbers

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The 25 largest clean energy consulting firms based in Australia

Ranked by team size

Top 25 of 868 clean energy 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	Worley	Sydney	10001+	36,380	12,678
2	Anthesis Group	Adelaide	1,001-5,000	887	578
3	Photon Energy Group	Sydney	201-500	408	187
4	Umwelt Environmental & Social Consultants	Melbourne	201-500	326	234
5	Entura	Hobart	201-500	272	174
6	MONDO	Ringwood	501-1,000	131	57
7	Energetics	North Sydney	51-200	95	63
8	Acle Services PTY LTD	Camberwell	51-200	94	46
9	Rennie	Sydney	51-200	78	66
10	Western Environmental	Richmond	51-200	52	1
11	Element Advisory Part Of SLR	Perth	51-200	50	22
12	Environmental Earth Sciences International Eesi	Chatswood	51-200	49	29
13	Stepchange	Perth	51-200	43	8
14	Global Power Energy	Brisbane	11-50	41	30
15	Right Lane Consulting	Sydney	11-50	39	30
16	Solar Naturally	Perth	51-200	39	15
17	ITP Renewables	Sydney	11-50	37	25
18	Renewables Technical Services	Bondi Junction	51-200	34	11
19	Kuga Energy	Keysborough	51-200	33	4
20	GEM Energy	Pinkenba	51-200	30	9
21	Dartmouth Consulting	Melbourne	11-50	25	14
22	Arche Energy	Launceston	11-50	23	16
23	Edsico Management	Melbourne	51-200	23	6
24	Groundwork Plus NOW SLR	Nuriootpa	1,001-5,000	22	13
25	Trans Tasman Energy Group	Fitzroy	51-200	21	17

Showing 25 of 868 clean energy consulting firms based in Australia

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Clean energy consulting firms based in Australia at a glance

As of Aug 28, 2026

1-10Median size (employees)

SydneyLargest hub · 129 HQs

4,929Contacts with mobile numbers

76Emails re-verified in last 30 days

Companies by employee count

1-10

609

11-50

200

51-200

201-500

501-1,000

1,001-5,000

10001+

Clean energy consulting firms by metro

Metro	Companies
Clean energy consulting firms in Sydney	129
Clean energy consulting firms in Melbourne	118
Clean energy consulting firms in Perth	79
Clean energy consulting firms in Brisbane	72
Clean energy consulting firms in Adelaide	39
Clean energy consulting firms in Newcastle	8
Clean energy consulting firms in Gold Coast	8

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 “clean energy 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; 76 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 clean energy consulting firms are there based in Australia?

There are 868 clean energy consulting firms headquartered in Australia as of August 2026 (RevenueBase).

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 15,609 verified decision-maker contacts tracked across these 868 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.