Company lists · Data refreshed September 2026

Top 25 Climate change consultancies based in Sydney, Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 122 companies tracked

RevenueBase identified 122 climate change consultancies headquartered in Sydney, Australia as of September 2026 and tracks 1,152 professional contacts across them, including 621 with verified work emails. Sydney is the largest hub.

This list covers climate change consultancies headquartered in Sydney, 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

122Companies

1,152Contacts tracked

621Verified emails

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The 25 largest climate change consultancies based in Sydney, Australia

Ranked by team size

Top 25 of 122 climate change consultancies based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to climate change 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	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
2	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
3	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
4	BWD Strategic	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	45 contacts →
	Indirect evidence “BWD is a pure-play, independent sustainability consultancy and B Corp with offices in Sydney, New York, Brisbane, Phoenix, and Auckland.” Source: RevenueBase Database · checked Sep 21, 2026
5	Athena Blue Global	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence “Athena Blue Global helps shape a better future for forward-thinking businesses worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
6	REASK	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect evidence “Reask is a science and technology company applying cutting-edge data science techniques to natural hazard modelling.” Source: RevenueBase Database · checked Sep 21, 2026
7	Edsico Management	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	23 contacts →
	Indirect evidence “With decades of experience, EDSICO Management provides fully integrated range of management consultancy services.” Source: RevenueBase Database · checked Sep 21, 2026
8	Energylink Services PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	18 contacts →
	Indirect evidence “EnergyLink Services is a multi-disciplinary, specialist, energy and carbon consultancy and project developer.” Source: RevenueBase Database · checked Sep 21, 2026
9	100 Renewables	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	12 contacts →
	Partial evidence “100% Renewables is a national consultancy specialising in the development of Climate Action Strategies for business, including pathways to net zero emissions.” Source: RevenueBase Database · checked Sep 21, 2026
10	Common Capital	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	11 contacts →
	Partial evidence “Common Capital is a specialist climate, energy, policy and economics firm.” Source: RevenueBase Database · checked Sep 21, 2026
11	Climatalist	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
12	Greener	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	8 contacts →
	Partial evidence “Greener is on a mission to deliver audit-ready mandatory climate reporting that is faster and easier than the rest.” Source: RevenueBase Database · checked Sep 21, 2026
13	Sphere Infrastructure Partners	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	7 contacts →
	Indirect evidence “Sphere was founded in 2018 in recognition of the need for advisors with specific environmental sector experience, development capability and expertise in delivering complex…” Source: RevenueBase Database · checked Sep 21, 2026
14	Pure Environment	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	6 contacts →
	Indirect evidence “We are a dedicated consultancy driven by a profound commitment to fostering sustainability across diverse sectors, including construction, commercial, industrial, and financial…” Source: RevenueBase Database · checked Sep 21, 2026
15	ESG Plus	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “At ESG PLUS we are here to help you with your ESG strategy and sustainability compliance needs.” Source: RevenueBase Database · checked Sep 21, 2026
16	Gondwana Carbon	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	5 contacts →
	Partial evidence “Gondwana is an ambitious climate advisor for carbon and biodiversity markets with over 150+ years of relevant experience with unparalleled insights and connectivity.” Source: RevenueBase Database · checked Sep 21, 2026
17	70 Ways	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “70 Ways is at the forefront of ushering businesses into a sustainable future, recognizing the complex challenges posed by the evolving landscape of energy, environment, and safety.” Source: RevenueBase Database · checked Sep 21, 2026
18	Infrafuture	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “We are a specialist in the energy and water sectors across major projects and business operations.” Source: RevenueBase Database · checked Sep 21, 2026
19	Unitive	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Helping build responsible businesses and leaders for a more sustainable, productive and meaningful economy.” Source: RevenueBase Database · checked Sep 21, 2026
20	Regenerate Talent	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “Regenerate Talent is a purpose-driven, B Corp Certified Executive Search and Recruitment Consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
21	Cress Consulting PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	4 contacts →
	Indirect evidence “Cress Consulting is committed to finding the right solutions to help you achieve a more sustainable, secure future.” Source: RevenueBase Database · checked Sep 21, 2026
22	ONE Stone Asia Pacific	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “We are sustainability strategy and engagement specialists.” Source: RevenueBase Database · checked Sep 21, 2026
23	EME Advisory	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “EME Advisory is a planning and environment consulting business based in Sydney and Newcastle.” Source: RevenueBase Database · checked Sep 21, 2026
24	Positive Futures Advisory PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Positive Futures Advisory Pty Ltd is a consultancy practice set up to collaborate with industry, government, and academia to generate positive impact across social, environmental…” Source: RevenueBase Database · checked Sep 21, 2026
25	Netfolios	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	3 contacts →
	Partial evidence “Climate-Smart Investing with AI-Driven Insights We offer an unmatched suite of AI-powered climate intelligence tools that put you in control of your portfolios' climate impact.” 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 change 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 change consultancies.
Partial evidence: Its own public description names part of climate change consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name climate change 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 122 climate change consultancies based in Sydney, Australia

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Climate change consultancies based in Sydney, Australia at a glance

As of Sep 21, 2026

53.9%Verified-email coverage

9.4Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Email recency for this list is measured across the whole Australia list rather than for Sydney, so it is reported there. Company counts and contact totals on this page are exact for Sydney, over 122 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 change 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 Sydney, Australia whose own description of what they do matches “climate change 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 change 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 change consultancies, and records with no verified work email. Companies headquartered outside Sydney 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, 621 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 change consultancies by metro in Australia

Climate change consultancies in Sydney122
Climate change consultancies in Melbourne104
Climate change consultancies in Perth63
Climate change consultancies in Brisbane61

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 change 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 change consultancies are there based in Sydney, Australia?

RevenueBase identified 122 climate change consultancies headquartered in Sydney, 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?

Jbs&g, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most climate change consultancies?

Sydney leads with 122 headquartered companies, followed by Melbourne (104) and Perth (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 621 verified decision-maker contacts tracked across these 122 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.