Company lists · Data refreshed September 2026

Top 25 Sustainability auditors based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 202 companies tracked

RevenueBase identified 202 sustainability auditors headquartered in Australia as of September 2026 and tracks 1,840 professional contacts across them, including 818 with verified work emails. Sydney is the largest hub.

This list covers sustainability auditors 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 22, 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 22, 2026 86% judged on-target in blind review

202Companies

1,840Contacts tracked

818Verified emails

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The 25 largest sustainability auditors based in Australia

Ranked by team size

Top 25 of 202 sustainability auditors based in Australia, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability auditors: 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	ADP Consulting	Partial evidence	Melbourne, AustraliaHQ checked Sep 22, 2026	201-500	468 contacts →
	Partial 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 22, 2026
2	Energetics	Indirect evidence	North Sydney, AustraliaHQ checked Sep 22, 2026	51-200	94 contacts →
	Indirect evidence “Energetics is the climate risk and energy transition expert.” Source: RevenueBase Database · checked Sep 22, 2026
3	Edge Impact	Indirect evidence	Sydney, AustraliaHQ checked Sep 22, 2026	51-200	84 contacts →
	Indirect evidence “Edge Impact exists to create a world where unsustainable is unthinkable.” Source: RevenueBase Database · checked Sep 22, 2026
4	BWD Strategic	Partial evidence	Sydney, AustraliaHQ checked Sep 22, 2026	11-50	45 contacts →
	Partial 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 22, 2026
5	Sustainable Development Consultants PTY LTD	Indirect evidence	Camberwell, AustraliaHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence “18 years of innovation, pioneering and project delivery.” Source: RevenueBase Database · checked Sep 22, 2026
6	Global Greentag International PTY LTD	Indirect evidence	Brisbane City, AustraliaHQ checked Sep 22, 2026	11-50	30 contacts →
	Indirect evidence “Global GreenTag International offers global certification services for green, healthy and ethical products assessed through its advanced, scientifically based, product…” Source: RevenueBase Database · checked Sep 22, 2026
7	ACO Certification LTD	Indirect evidence	Brisbane City, AustraliaHQ checked Sep 22, 2026	11-50	29 contacts →
	Indirect evidence “Welcome to ACO Certification Ltd.” Source: RevenueBase Database · checked Sep 22, 2026
8	Greenbase	Indirect evidence	Perth, AustraliaHQ checked Sep 22, 2026	11-50	28 contacts →
	Indirect 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 22, 2026
9	Perspektiv	Partial evidence	North Fremantle, AustraliaHQ checked Sep 22, 2026	11-50	25 contacts →
	Partial evidence “Perspektiv is an independent, boutique sustainability consultancy that truly understands your business's challenges.” Source: RevenueBase Database · checked Sep 22, 2026
10	Certified Energy	Indirect evidence	The Rocks, AustraliaHQ checked Sep 22, 2026	11-50	23 contacts →
	Indirect evidence “Certified Energy provides practical ESD and building performance services across residential and commercial projects.” Source: RevenueBase Database · checked Sep 22, 2026
11	Banksia Foundation	Partial evidence	South Melbourne, AustraliaHQ checked Sep 22, 2026	1-10	23 contacts →
	Partial evidence “The Banksia Foundation, established in 1989, is a national not-for-profit organisation that promotes sustainability excellence through its Awards program and other associated…” Source: RevenueBase Database · checked Sep 22, 2026
12	Business Council For Sustainable Development Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 22, 2026	1-10	23 contacts →
	Indirect evidence “The Business Council for Sustainable Development Australia (BCSD Australia) is the national body representing forward-thinking companies and organisations that are working towards…” Source: RevenueBase Database · checked Sep 22, 2026
13	Clean Globe	Indirect evidence	Melbourne, AustraliaHQ checked Sep 22, 2026	51-200	22 contacts →
	Indirect evidence “Clean Globe is an esteemed global organization headquartered in Melbourne, Australia, specializing in certification, verification, and training services.” Source: RevenueBase Database · checked Sep 22, 2026
14	Kesab Environmental Solutions	Partial evidence	Flinders Park, AustraliaHQ checked Sep 22, 2026	11-50	21 contacts →
	Partial evidence “KESAB environmental solutions is South Australia’s leading not-for-profit (NFP) organisation in delivering world-class environmental sustainability programs.” Source: RevenueBase Database · checked Sep 22, 2026
15	Nettzero	Partial evidence	Sydney, AustraliaHQ checked Sep 22, 2026	11-50	20 contacts →
	Partial 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 22, 2026
16	Ecaas Certification International	Indirect evidence	Adelaide, AustraliaHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence “ECAAS is a trusted and dynamic third-party Certification Body with a global reach, dedicated to helping businesses achieve and maintain internationally recognized standards.” Source: RevenueBase Database · checked Sep 22, 2026
17	Independent Inspections	Indirect evidence	Rochedale, AustraliaHQ checked Sep 22, 2026	1-10	17 contacts →
	Indirect evidence “Providing a wide range of Independent Quality Auditing and Reporting Services, to the above industries around Australia.” Source: RevenueBase Database · checked Sep 22, 2026
18	Element	Partial evidence	Mona Vale, AustraliaHQ checked Sep 22, 2026	11-50	15 contacts →
	Partial evidence “Element is a trusted environmental, planning and social sustainability consultancy.” Source: RevenueBase Database · checked Sep 22, 2026
19	2xe	Partial evidence	North Adelaide, AustraliaHQ checked Sep 22, 2026	11-50	15 contacts →
	Partial evidence “2XE is a leading Australian sustainability and climate consultancy helping businesses make credible, commercially grounded transitions.” Source: RevenueBase Database · checked Sep 22, 2026
20	Zooss Consulting	Indirect evidence	Manly, AustraliaHQ checked Sep 22, 2026	1-10	15 contacts →
	Indirect evidence “Our mission is to enable better business planning and reporting.” Source: RevenueBase Database · checked Sep 22, 2026
21	Oceanwatch Australia LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
22	SYNE	Partial evidence	Sydney, AustraliaHQ checked Sep 22, 2026	11-50	13 contacts →
	Partial evidence “SYNE is a Sustainability Management Platform benchmarking global businesses based on impact intellegence.” Source: RevenueBase Database · checked Sep 22, 2026
23	Green Tape Solutions	Indirect evidence	Morayfield, AustraliaHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “Green Tape Solutions is an Australian consultancy that specialises in environmental assessment, environmental surveys and auditing.” Source: RevenueBase Database · checked Sep 22, 2026
24	RENYI	Partial evidence	Bondi Junction, AustraliaHQ checked Sep 22, 2026	1-10	8 contacts →
	Partial evidence “As Sustainability Design Consultants for Australia’s Leading Developers, Renyi provides expert guidance throughout the design and construction phases of every project.” Source: RevenueBase Database · checked Sep 22, 2026
25	Empauer	Partial evidence	Richmond, AustraliaHQ checked Sep 22, 2026	201-500	7 contacts →
	Partial evidence “At Empauer, we provide companies with the tools, authority and power to better understand the true sustainability of their business.” Source: RevenueBase Database · checked Sep 22, 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: sustainability auditors. 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 sustainability auditors.
Partial evidence: Its own public description names part of sustainability auditors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainability auditors. 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 202 sustainability auditors based in Australia

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Sustainability auditors based in Australia at a glance

As of Sep 22, 2026

44.5%Verified-email coverage

9.1Average contacts per company

1-10Median size (employees)

21.3%Largest-city concentration · Sydney

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

151

11-50

51-200

201-500

5,001-10,000

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 202 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 sustainability auditors, 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 “sustainability auditors”. 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 sustainability auditors), 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 sustainability auditors, 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, 818 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 22, 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.

Sustainability auditors by metro

Sustainability auditors in Sydney43
Sustainability auditors in Melbourne29

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 sustainability auditors, 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 sustainability auditors are there based in Australia?

RevenueBase identified 202 sustainability auditors 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?

ADP Consulting, headquartered in Melbourne, tops this list with the largest team on record.

Which city has the most sustainability auditors?

Sydney leads with 43 headquartered companies, followed by Melbourne (29) and Brisbane (16).

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 818 verified decision-maker contacts tracked across these 202 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 22, 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.