Company lists · Data refreshed September 2026

Top 24 Sustainable development firms based in Australia

Name: Sustainable development firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 729 companies tracked

RevenueBase identified 729 sustainable development firms headquartered in Australia as of September 2026 and tracks 42,847 professional contacts across them, including 16,269 with verified work emails. Sydney is the largest hub.

This list covers sustainable development firms 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

729Companies

42,847Contacts tracked

16,269Verified emails

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The 24 largest sustainable development firms based in Australia

Ranked by team size

Top 24 of 729 sustainable development firms 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 sustainable development firms: 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 22, 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 22, 2026
2	Lycopodium	Partial evidence	Perth, AustraliaHQ checked Sep 22, 2026	1,001-5,000	1,143 contacts →
	Partial 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 22, 2026
3	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
4	EMM Consulting PTY Limited	Partial evidence	St Leonards, AustraliaHQ checked Sep 22, 2026	201-500	361 contacts →
	Partial 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 22, 2026
5	Umwelt Environmental & Social Consultants	Indirect evidence	Teralba, AustraliaHQ checked Sep 22, 2026	201-500	329 contacts →
	Indirect evidence “Umwelt has been trusted by clients and communities for over 30 years.” Source: RevenueBase Database · checked Sep 22, 2026
6	Jbs&g	Indirect evidence	Sydney, AustraliaHQ checked Sep 22, 2026	201-500	262 contacts →
	Indirect 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 22, 2026
7	Wave International	Indirect evidence	Perth, AustraliaHQ checked Sep 22, 2026	201-500	188 contacts →
	Indirect evidence “We are passionate about engineering the future by solving the world's natural resource challenges.” Source: RevenueBase Database · checked Sep 22, 2026
8	Earth Systems	Indirect evidence	Port Melbourne, AustraliaHQ checked Sep 22, 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 22, 2026
9	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
10	Acle Services PTY LTD	Indirect evidence	Camberwell, AustraliaHQ checked Sep 22, 2026	51-200	88 contacts →
	Indirect evidence “At ACLE, we transform renewable energy vision into reality.” Source: RevenueBase Database · checked Sep 22, 2026
11	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
12	Essence Project Management	Indirect evidence	Sydney, AustraliaHQ checked Sep 22, 2026	51-200	70 contacts →
	Indirect evidence “Essence is a vibrant and energetic employee-owned and operated project management consultancy.” Source: RevenueBase Database · checked Sep 22, 2026
13	Struber	Indirect evidence	Fortitude Valley, AustraliaHQ checked Sep 22, 2026	51-200	54 contacts →
	Indirect evidence “Struber leaves a Bright Impact on the people and places benefiting from the billions of dollars invested in Australian infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
14	ARCH	Indirect evidence	Sydney, AustraliaHQ checked Sep 22, 2026	51-200	53 contacts →
	Indirect evidence “Founded in 2014 by John Armstrong, ARCH Artifex (ARCH) is a specialist consultancy dedicated to delivering measurable, outcome-focused solutions in Systems Engineering & Safety…” Source: RevenueBase Database · checked Sep 22, 2026
15	CNC Project Management	Indirect evidence	Melbourne, AustraliaHQ checked Sep 22, 2026	51-200	49 contacts →
	Indirect evidence “CNC Project Management is an Australian infrastructure and energy consultancy.” Source: RevenueBase Database · checked Sep 22, 2026
16	Environmental Earth Sciences International Eesi	Partial evidence	Chatswood, AustraliaHQ checked Sep 22, 2026	51-200	49 contacts →
	Partial evidence “EESI Group, a leader in brown environment consulting, serves the mining, waste & landfill, urban development, and farming sectors across Australia and the UK.” Source: RevenueBase Database · checked Sep 22, 2026
17	ERIAS	Indirect evidence	Melbourne, AustraliaHQ checked Sep 22, 2026	11-50	46 contacts →
	Indirect evidence “SPECIALISTS IN DELIVERING LIFE-OF-PROJECT ENVIRONMENTAL AND SOCIAL IMPACT ASSESSMENT AND MANAGEMENT SOLUTIONS ERIAS was founded by experienced environmental professionals with a…” Source: RevenueBase Database · checked Sep 22, 2026
18	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
19	MBS Environmental	Indirect evidence	West Perth, AustraliaHQ checked Sep 22, 2026	11-50	44 contacts →
	Indirect evidence “MBS Environmental (formerly Martinick McNulty Pty Ltd) was established in 1978 and is based in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 22, 2026
20	Global Power Energy	Indirect evidence	Brisbane, AustraliaHQ checked Sep 22, 2026	11-50	41 contacts →
	Indirect evidence “Global Power Energy is an energy advisory company that is seeking to help its clients be successful in the energy transition.” Source: RevenueBase Database · checked Sep 22, 2026
21	RHELM	Indirect evidence	Neutral Bay, AustraliaHQ checked Sep 22, 2026	11-50	39 contacts →
	Indirect evidence “Rhelm is a specialist consulting company offering professional services to clients in Australia and internationally.” Source: RevenueBase Database · checked Sep 22, 2026
22	ITP Renewables	Indirect evidence	Canberra, AustraliaHQ checked Sep 22, 2026	11-50	39 contacts →
	Indirect evidence “ITP Renewables is Australia’s longest-running, independent, renewable energy consultancy.” Source: RevenueBase Database · checked Sep 22, 2026
23	EP Risk Management	Indirect evidence	North Sydney, AustraliaHQ checked Sep 22, 2026	11-50	38 contacts →
	Indirect evidence “EP Risk Management is an environmental consultancy that blends environmental, property and risk management experience to provide pragmatic and cost effective solutions to the…” Source: RevenueBase Database · checked Sep 22, 2026
24	Wolfpeak	Partial evidence	Port Macquarie, AustraliaHQ checked Sep 22, 2026	11-50	36 contacts →
	Partial evidence “We offer specialist consulting and project services, solving complex strategic and systematic issues across the environmental, natural resource, planning, sustainability, policy…” 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: sustainable development firms. 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 sustainable development firms.
Partial evidence: Its own public description names part of sustainable development firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable development firms. 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 24 of 729 sustainable development firms based in Australia

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Sustainable development firms based in Australia at a glance

As of Sep 22, 2026

38.0%Verified-email coverage

58.8Average contacts per company

1-10Median size (employees)

13.7%Largest-city concentration · Sydney

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

526

11-50

150

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 729 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 sustainable development firms, 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 “sustainable development firms”. 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 sustainable development firms), 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 sustainable development firms, 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, 16,269 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.

Sustainable development firms 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 sustainable development firms, 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 sustainable development firms are there based in Australia?

RevenueBase identified 729 sustainable development firms 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 sustainable development firms?

Sydney leads with 100 headquartered companies, followed by Melbourne (80) 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 16,269 verified decision-maker contacts tracked across these 729 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.