Company lists · Data refreshed September 2026

Top 25 Climate consultancies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,667 companies tracked

RevenueBase identified 1,667 climate consultancies headquartered in Australia as of September 2026 and tracks 52,476 professional contacts across them, including 21,617 with verified work emails. Sydney is the largest hub.

This list covers climate consultancies 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 21, 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 21, 2026 86% judged on-target in blind review

1,667Companies

52,476Contacts tracked

21,617Verified emails

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The 25 largest climate consultancies based in Australia

Ranked by team size

Top 25 of 1,667 climate consultancies based in Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to climate consultancies: 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	Worley	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	10001+	34,763 contacts →
	Indirect evidence “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Source: RevenueBase Database · checked Sep 21, 2026
2	Lycopodium	Indirect evidence	Perth, AustraliaHQ checked Sep 21, 2026	1,001-5,000	1,143 contacts →
	Indirect evidence “Lycopodium is an Australian headquartered engineering and project management consultancy which provides a complete range of services for the evaluation, development…” Source: RevenueBase Database · checked Sep 21, 2026
3	URBIS	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	501-1,000	1,096 contacts →
	Indirect evidence “Urbis is more than just a consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
4	ADP Consulting	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	201-500	468 contacts →
	Indirect evidence “ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.” Source: RevenueBase Database · checked Sep 21, 2026
5	EMM Consulting PTY Limited	Indirect evidence	St Leonards, AustraliaHQ checked Sep 21, 2026	201-500	361 contacts →
	Indirect evidence “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Source: RevenueBase Database · checked Sep 21, 2026
6	Umwelt Environmental & Social Consultants	Indirect evidence	Teralba, AustraliaHQ checked Sep 21, 2026	201-500	329 contacts →
	Indirect evidence “Umwelt has been trusted by clients and communities for over 30 years.” Source: RevenueBase Database · checked Sep 21, 2026
7	Pitt&sherry	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	201-500	317 contacts →
	Indirect evidence “pitt & sherry is an Australian-owned engineering and environmental consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
8	Jbs&g	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	262 contacts →
	Partial evidence “Established in 1996, JBS & G is one of Australia’s leading environmental consultancies with offices in Sydney, Melbourne, Perth, Adelaide, Brisbane, Canberra, Darwin, Wollongong…” Source: RevenueBase Database · checked Sep 21, 2026
9	Engeny	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	201-500	216 contacts →
	Indirect evidence “Now a part of the Egis Group, Engeny provides a wide range of specialist engineering and environmental consultancy services across disciplines.” Source: RevenueBase Database · checked Sep 21, 2026
10	ECO Logical Australia PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	211 contacts →
	Indirect evidence “We exist to empower people to make a difference.” Source: RevenueBase Database · checked Sep 21, 2026
11	SJA	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	145 contacts →
	Indirect evidence “SJA Construction Services is a specialist consultancy firm providing independent expert, advisory and technical services to the construction and infrastructure industry across…” Source: RevenueBase Database · checked Sep 21, 2026
12	Alluvium Group	Indirect evidence	East Melbourne, AustraliaHQ checked Sep 21, 2026	201-500	141 contacts →
	Indirect evidence “The Alluvium Group is an employee-owned consulting practice founded in 2006 to provide advice to government and private organisations on issues impacting on the build and natural…” Source: RevenueBase Database · checked Sep 21, 2026
13	Biosis PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	136 contacts →
	Indirect evidence “Biosis is a team of qualified and professional consultants, experienced in and passionate about ecology and cultural heritage.” Source: RevenueBase Database · checked Sep 21, 2026
14	Slattery	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	119 contacts →
	Indirect evidence “Slattery is a national property and construction advisory firm, helping clients plan, adapt and invest with confidence.” Source: RevenueBase Database · checked Sep 21, 2026
15	Climateworks Centre	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	115 contacts →
	Partial evidence “Climateworks Centre bridges the gap between research and climate action.” Source: RevenueBase Database · checked Sep 21, 2026
16	Talis Consultants	Indirect evidence	Leederville, AustraliaHQ checked Sep 21, 2026	51-200	108 contacts →
	Indirect evidence “Talis Consultants is now operating throughout Australia.” Source: RevenueBase Database · checked Sep 21, 2026
17	Ratio Consultants	Indirect evidence	Cremorne, AustraliaHQ checked Sep 21, 2026	51-200	106 contacts →
	Indirect evidence “For more than 30 years, we’ve worked across Australia to deliver integrated solutions that balance the needs of growth, community and the environment.” Source: RevenueBase Database · checked Sep 21, 2026
18	ADW Johnson PTY LTD	Indirect evidence	Warners Bay, AustraliaHQ checked Sep 21, 2026	51-200	101 contacts →
	Indirect evidence “As a medium sized operation, ADW Johnson has the flexibility to ensure every project receives the individual attention of a senior member of our team.” Source: RevenueBase Database · checked Sep 21, 2026
19	Earth Systems	Indirect evidence	Port Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	101 contacts →
	Indirect evidence “At Earth Systems, we believe that solving the world’s environmental challenges requires more than just knowledge-it takes innovation and action.” Source: RevenueBase Database · checked Sep 21, 2026
20	Rowland	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	51-200	100 contacts →
	Indirect evidence “We are one of Australia’s leading strategic communication agencies, transforming businesses through powerful, data-led communication.” Source: RevenueBase Database · checked Sep 21, 2026
21	Energetics	Partial evidence	North Sydney, AustraliaHQ checked Sep 21, 2026	51-200	94 contacts →
	Partial evidence “Energetics is the climate risk and energy transition expert.” Source: RevenueBase Database · checked Sep 21, 2026
22	Xenith	Indirect evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	51-200	92 contacts →
	Indirect evidence “Xenith is an established consulting firm that delivers outstanding exploration, mine planning, operational and financial solutions to resources companies in Australia and around…” Source: RevenueBase Database · checked Sep 21, 2026
23	Edge Impact	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	84 contacts →
	Indirect evidence “Edge Impact exists to create a world where unsustainable is unthinkable.” Source: RevenueBase Database · checked Sep 21, 2026
24	CETEC	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	81 contacts →
	Indirect evidence “CETEC is an independent consultancy delivering scientific and technical solutions.” Source: RevenueBase Database · checked Sep 21, 2026
25	Rennie	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	80 contacts →
	Indirect evidence “Rennie provides strategy, ESG & sustainability, capital advisory, policy and reform, and business advisory services.” Source: RevenueBase Database · checked Sep 21, 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 consultancies. 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 consultancies.
Partial evidence: Its own public description names part of climate consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate consultancies. 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 1,667 climate consultancies based in Australia

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Climate consultancies based in Australia at a glance

As of Sep 21, 2026

41.2%Verified-email coverage

31.5Average contacts per company

1-10Median size (employees)

15.3%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

1,219

11-50

350

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,667 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 consultancies, 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 consultancies”. 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 consultancies), 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 consultancies, 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, 21,617 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 21, 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 consultancies by metro

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 consultancies, 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 consultancies are there based in Australia?

RevenueBase identified 1,667 climate consultancies 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?

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

Which city has the most climate consultancies?

Sydney leads with 255 headquartered companies, followed by Melbourne (223) and Brisbane (132).

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 21,617 verified decision-maker contacts tracked across these 1,667 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 21, 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.