Company lists · Data refreshed September 2026

Top 25 Carbon neutral contractors based in Australia

RevenueBase identified 1,168 carbon neutral contractors headquartered in Australia as of September 2026 and tracks 11,911 professional contacts across them, including 5,133 with verified work emails. Sydney is the largest hub.

This list covers carbon neutral contractors 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 16, 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 16, 2026 86% judged on-target in blind review
1,168Companies
11,911Contacts tracked
5,133Verified emails
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The 25 largest carbon neutral contractors based in Australia

Ranked by team size
Top 25 of 1,168 carbon neutral contractors based in Australia, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to carbon neutral contractors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBrisbane, AustraliaHQ checked Sep 16, 2026501-1,000872 contacts →

Indirect evidence

“Robert Bird Group (RBG), member of the Surbana Jurong Group, is a specialist structural, civil and construction engineering consultancy with over 800 employees across 12 offices…”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceMelbourne, AustraliaHQ checked Sep 16, 2026201-500468 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 16, 2026
3Indirect evidenceSt Leonards, AustraliaHQ checked Sep 16, 2026201-500361 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 16, 2026
4Indirect evidenceTeralba, AustraliaHQ checked Sep 16, 2026201-500329 contacts →

Indirect evidence

“Umwelt has been trusted by clients and communities for over 30 years.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceSydney, AustraliaHQ checked Sep 16, 2026201-500293 contacts →

Indirect evidence

“GHD Design empowers transformation at the speed of change.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceMelbourne, AustraliaHQ checked Sep 16, 2026201-500277 contacts →

Indirect evidence

“LCI Consultants is an Australian-operated, employee-owned building engineering design firm, delivering tailored and sustainable solutions across a wide range of sectors-including…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidencePerth, AustraliaHQ checked Sep 16, 2026201-500188 contacts →

Indirect evidence

“We are passionate about engineering the future by solving the world's natural resource challenges.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidencePyrmont, AustraliaHQ checked Sep 16, 202651-200149 contacts →

Indirect evidence

“CIP Constructions combines experience with an innovative and progressive approach to deliver outstanding results for our clients.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidencePerth, AustraliaHQ checked Sep 16, 202651-200132 contacts →

Indirect evidence

“Experiencing consistent growth since the founding of its headquarters in Perth, Western Australia in 2010, Monford Group is a leading construction company in Australia…”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceSouthbank, AustraliaHQ checked Sep 16, 2026501-1,000131 contacts →

Indirect evidence

“At Mondo, we see a bright future.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceNorth Sydney, AustraliaHQ checked Sep 16, 202651-200121 contacts →

Indirect evidence

“Building Services Engineers (BSE) is a 100% Australian-owned national engineering consultancy established in 1994.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceAlexandria, AustraliaHQ checked Sep 16, 202651-20096 contacts →

Indirect evidence

“Integrated Group Services (IGS) provide Integrated, Sustainable, Solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceNorth Sydney, AustraliaHQ checked Sep 16, 202651-20094 contacts →

Indirect evidence

“Energetics is the climate risk and energy transition expert.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceCamberwell, AustraliaHQ checked Sep 16, 202651-20088 contacts →

Indirect evidence

“At ACLE, we transform renewable energy vision into reality.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceSydney, AustraliaHQ checked Sep 16, 202651-20084 contacts →

Indirect evidence

“Where Engineering & Science Inspire Design.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceMelbourne, AustraliaHQ checked Sep 16, 202611-5081 contacts →

Indirect evidence

“CETEC is an independent consultancy delivering scientific and technical solutions.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceHamilton, AustraliaHQ checked Sep 16, 2026201-50080 contacts →

Partial evidence

“All Energy Group is a full-service contractor focused on the renewable energy sector.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceFortitude Valley, AustraliaHQ checked Sep 16, 202651-20076 contacts →

Indirect evidence

“TfA Project Group is a diverse, multi-disciplinary project management, design and engineering company that provides a “one stop shop” to its clients.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceSydney, AustraliaHQ checked Sep 16, 202651-20070 contacts →

Indirect evidence

“Jackson Teece is a multi-disciplinary design lead studio offering architecture, interior design and urban design consultancy services.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceBalcatta, AustraliaHQ checked Sep 16, 202651-20067 contacts →

Indirect evidence

“Welcome to QDC – Smarter, Integrated Design & Construction Solutions At QDC, we deliver a connected, innovative, and cost-effective approach to the design and construction of…”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceBroadmeadow, AustraliaHQ checked Sep 16, 202651-20062 contacts →

Indirect evidence

“Kingston Building is active in all sectors of the construction industry developing strategies to build communities whilst blending in within the environment.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceSeven Hills, AustraliaHQ checked Sep 16, 202651-20061 contacts →

Indirect evidence

“Kerfoot combines the customer service ethos of a family-owned business with the innovative ideas and professional business practices of a modern, forward-thinking organisation.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidencePerth, AustraliaHQ checked Sep 16, 202651-20056 contacts →

Indirect evidence

“JDSi is an engineering consultancy specialising in urban development and infrastructure projects.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceAdelaide, AustraliaHQ checked Sep 16, 202651-20054 contacts →

Indirect evidence

“We are a consulting engineering firm focused on bringing buildings to life.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceEast Melbourne, AustraliaHQ checked Sep 16, 202651-20052 contacts →

Indirect evidence

“We are a Melbourne based practice focused on the delivery of environmentally and socially responsible architecture.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 1,168 carbon neutral contractors based in Australia

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Carbon neutral contractors based in Australia at a glance

As of Sep 16, 2026
43.1%Verified-email coverage
10.2Average contacts per company
1-10Median size (employees)
10.2%Largest-city concentration · Sydney
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
810
11-50
266
51-200
70
201-500
11
501-1,000
3
1,001-5,000
3
5,001-10,000
1

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 1,168 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 neutral contractors, 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 neutral contractors”. 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 neutral contractors), 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 neutral contractors, 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, 5,133 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 16, 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 neutral contractors, 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 neutral contractors are there based in Australia?

RevenueBase identified 1,168 carbon neutral contractors 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?

Robert Bird Group, headquartered in Brisbane, tops this list with the largest team on record.

Which city has the most carbon neutral contractors?

Sydney leads with 119 headquartered companies, followed by Melbourne (113) and Perth (62).

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 5,133 verified decision-maker contacts tracked across these 1,168 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 16, 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.