Company lists · Data refreshed September 2026

Top 25 Carbon accounting consultancies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 111 companies tracked

RevenueBase identified 111 carbon accounting consultancies headquartered in Australia as of September 2026 and tracks 1,556 professional contacts across them, including 231 with verified work emails. Sydney is the largest hub.

This list covers carbon accounting 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 27, 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 27, 2026 86% judged on-target in blind review

111Companies

1,556Contacts tracked

231Verified emails

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The 25 largest carbon accounting consultancies based in Australia

Ranked by team size

Top 25 of 111 carbon accounting consultancies based in Australia, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to carbon accounting 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	Greenbase	Partial evidence	Perth, AustraliaHQ checked Sep 27, 2026	11-50	28 contacts →
	Partial evidence “WHERE SCIENCE AND ACCOUNTING INTERSECT Since the 1990s, companies in resource-intensive industries, including mining, energy, and construction, have relied on Greenbase and its…” Source: RevenueBase Database · checked Sep 27, 2026
2	FG Advisory	Partial evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	11-50	28 contacts →
	Partial evidence “At FGA, we are working with forward-thinking organisations to reimagine and realise a zero carbon future.” Source: RevenueBase Database · checked Sep 27, 2026
3	Nettzero	Indirect evidence	Sydney, AustraliaHQ checked Sep 27, 2026	11-50	20 contacts →
	Indirect evidence “NettZero is a 100% Australian owned and operated Sustainability Consultancy which caters to a multitude of sustainability demands concerning on Businesses.” Source: RevenueBase Database · checked Sep 27, 2026
4	Zephyr Environmental	Partial evidence	Sydney, AustraliaHQ checked Sep 27, 2026	1-10	20 contacts →
	Partial evidence “Zephyr is an environmental consulting practice specialising in air emissions and carbon management.” Source: RevenueBase Database · checked Sep 27, 2026
5	Energylink Services PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 27, 2026	11-50	18 contacts →
	Partial evidence “EnergyLink Services is a multi-disciplinary, specialist, energy and carbon consultancy and project developer.” Source: RevenueBase Database · checked Sep 27, 2026
6	2xe	Indirect evidence	North Adelaide, AustraliaHQ checked Sep 27, 2026	11-50	15 contacts →
	Indirect evidence “2XE is a leading Australian sustainability and climate consultancy helping businesses make credible, commercially grounded transitions.” Source: RevenueBase Database · checked Sep 27, 2026
7	Clear Carbon	Indirect evidence	Perth, AustraliaHQ checked Sep 27, 2026	1-10	15 contacts →
	Indirect evidence “We help companies get to Net Zero – fast.” Source: RevenueBase Database · checked Sep 27, 2026
8	Netnada	Indirect evidence	Sydney, AustraliaHQ checked Sep 27, 2026	11-50	15 contacts →
	Indirect evidence “NetNada was built on the mission that companies, no matter their size, have a vital role to play in the future of our planet.” Source: RevenueBase Database · checked Sep 27, 2026
9	Energy & Management Services	Indirect evidence	Warners Bay, AustraliaHQ checked Sep 27, 2026	11-50	15 contacts →
	Indirect evidence “EMS is an energy consultancy specialising in providing assistance to commercial and industrial clients, agribusinesses, mines, as well as small/medium enterprises in their…” Source: RevenueBase Database · checked Sep 27, 2026
10	Avarni	Indirect evidence	Sydney, AustraliaHQ checked Sep 27, 2026	11-50	14 contacts →
	Indirect evidence “Avarni uses AI to turn messy data into an auditable sustainability report, tailored for climate disclosure compliance.” Source: RevenueBase Database · checked Sep 27, 2026
11	100 Renewables	Indirect evidence	Sydney, AustraliaHQ checked Sep 27, 2026	1-10	12 contacts →
	Indirect 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 27, 2026
12	Super Smart Energy	Indirect evidence	West Perth, AustraliaHQ checked Sep 27, 2026	11-50	12 contacts →
	Indirect evidence “Facing mandatory climate reporting while under pressure to cut costs?” Source: RevenueBase Database · checked Sep 27, 2026
13	Solar Energy Enterprises	Indirect evidence	Barangaroo, AustraliaHQ checked Sep 27, 2026	11-50	12 contacts →
	Indirect evidence “At Solar Energy Enterprises (SEE Group), our aim is simple: to help businesses Rethink Sustainability.” Source: RevenueBase Database · checked Sep 27, 2026
14	The Mullion Group	Indirect evidence	Canberra, AustraliaHQ checked Sep 27, 2026	11-50	11 contacts →
	Indirect evidence “The Mullion Group is an Australian based software and consulting company, internationally recognised for its expertise in greenhouse gas inventory systems for the land sector.” Source: RevenueBase Database · checked Sep 27, 2026
15	Ideea Group	Indirect evidence	Melbourne, AustraliaHQ checked Sep 27, 2026	1-10	10 contacts →
	Indirect evidence “IDEEA Group is a Melbourne-based advisory firm turning nature into credible numbers to support better decisions on risk, investment and disclosure.” Source: RevenueBase Database · checked Sep 27, 2026
16	Upscale Carbon PTY LTD	Partial evidence	Chinchilla, AustraliaHQ checked Sep 27, 2026	1-10	9 contacts →
	Partial evidence “Upscale Carbon was formed to help both business and landholders navigate the Australian Carbon market by ensuring landholders keep credits.” Source: RevenueBase Database · checked Sep 27, 2026
17	Summation	Indirect evidence	Perth, AustraliaHQ checked Sep 27, 2026	11-50	9 contacts →
	Indirect evidence “We're a boutique consultancy with an extensive network of like-minded individuals, and here's why that matters: our commitment to delivering the best solutions drives us to tap…” Source: RevenueBase Database · checked Sep 27, 2026
18	Noco2 Carbon Reduction Institute	Partial evidence	Sydney, AustraliaHQ checked Sep 27, 2026	11-50	9 contacts →
	Partial evidence “The Carbon Reduction Institute is a profit-for-purpose carbon consulting business helping organisations measure, reduce and take responsibility for their greenhouse gas emissions.” Source: RevenueBase Database · checked Sep 27, 2026
19	Climate Zero	Indirect evidence	Albert Park, AustraliaHQ checked Sep 27, 2026	11-50	8 contacts →
	Indirect evidence “We understand the barriers between businesses and net zero.” Source: RevenueBase Database · checked Sep 27, 2026
20	Greener	Indirect evidence	Sydney, AustraliaHQ checked Sep 27, 2026	1-10	8 contacts →
	Indirect 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 27, 2026
21	Carbonhalo	Strong evidence	Hobart, AustraliaHQ checked Sep 27, 2026	11-50	7 contacts →
	Strong evidence “Carbonhalo provides carbon accounting and emission reduction programs for large corporates, the mid-tier sector and SMEs across Australia.” Source: RevenueBase Database · checked Sep 27, 2026
22	Footprintlab	Indirect evidence	Sydney, AustraliaHQ checked Sep 27, 2026	1-10	7 contacts →
	Indirect evidence “The emission factor data behind Climate Active, the UN Sustainable Development Goals and enterprises around the world.” Source: RevenueBase Database · checked Sep 27, 2026
23	4k Earth Science Private	Indirect evidence	Bangalore, AustraliaHQ checked Sep 27, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
24	ARTEH	Indirect evidence	Brisbane, AustraliaHQ checked Sep 27, 2026	1-10	6 contacts →
	Indirect evidence “At Arteh, we believe that climate action shouldn't be complicated, expensive, or out of reach.” Source: RevenueBase Database · checked Sep 27, 2026
25	Decarbonology	Partial evidence	Perth, AustraliaHQ checked Sep 27, 2026	1-10	5 contacts →
	Partial evidence “Decarbonology helps companies measure emissions, develop tailored roadmaps to reduce emissions and provide carbon offsets to make companies Net Zero Carbon.” Source: RevenueBase Database · checked Sep 27, 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: carbon accounting 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 carbon accounting consultancies.
Partial evidence: Its own public description names part of carbon accounting consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name carbon accounting 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 111 carbon accounting consultancies based in Australia

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Carbon accounting consultancies based in Australia at a glance

As of Sep 27, 2026

14.8%Verified-email coverage

14.0Average contacts per company

1-10Median size (employees)

24.3%Largest-city concentration · Sydney

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

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 111 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 carbon accounting 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 “carbon accounting 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 carbon accounting 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 carbon accounting 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, 231 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 27, 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.

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 carbon accounting 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 carbon accounting consultancies are there based in Australia?

RevenueBase identified 111 carbon accounting 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?

Greenbase, headquartered in Perth, tops this list with the largest team on record.

Which city has the most carbon accounting consultancies?

Sydney leads with 27 headquartered companies, followed by Melbourne (14) and Perth (12).

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 231 verified decision-maker contacts tracked across these 111 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 27, 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.