Company lists · Data refreshed September 2026

Top 25 Environmental due diligence firms based in Australia

Name: Environmental due diligence firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 196 companies tracked

RevenueBase identified 196 environmental due diligence firms headquartered in Australia as of September 2026 and tracks 1,880 professional contacts across them, including 1,101 with verified work emails. Sydney is the largest hub.

This list covers environmental due diligence 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 19, 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 19, 2026 86% judged on-target in blind review

196Companies

1,880Contacts tracked

1,101Verified emails

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The 25 largest environmental due diligence firms based in Australia

Ranked by team size

Top 25 of 196 environmental due diligence firms based in Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental due diligence 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	Jbs&g	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 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 19, 2026
2	Epic Environmental	Partial evidence	Brisbane, AustraliaHQ checked Sep 19, 2026	51-200	94 contacts →
	Partial evidence “Epic offers industry leading environmental solutions to national and selected international markets.” Source: RevenueBase Database · checked Sep 19, 2026
3	ALS Environmental - Australia	Partial evidence	Smithfield, AustraliaHQ checked Sep 19, 2026	1,001-5,000	86 contacts →
	Partial evidence “Welcome to ALS Environmental, follow our showcase pages for what interest's you.” Source: RevenueBase Database · checked Sep 19, 2026
4	CETEC	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	81 contacts →
	Indirect evidence “CETEC is an independent consultancy delivering scientific and technical solutions.” Source: RevenueBase Database · checked Sep 19, 2026
5	Opec Systems	Partial evidence	Lennox Head, AustraliaHQ checked Sep 19, 2026	51-200	70 contacts →
	Partial evidence “Public and private sector organisations across the globe choose OPEC Systems to creatively and intelligently solve their environmental engineering challenges.” Source: RevenueBase Database · checked Sep 19, 2026
6	Hydrobiology	Partial evidence	Milton, AustraliaHQ checked Sep 19, 2026	11-50	67 contacts →
	Partial evidence “Hydrobiology is an Environmental Consulting Company offering integrated services in the physical, biological and chemical processes of environmental systems with a particular…” Source: RevenueBase Database · checked Sep 19, 2026
7	Agon Environmental	Partial evidence	Fullarton, AustraliaHQ checked Sep 19, 2026	11-50	52 contacts →
	Partial evidence “Agon Environmental is an Australian consultancy delivering quality environmental services.” Source: RevenueBase Database · checked Sep 19, 2026
8	Core Consultants	Partial evidence	Coolum Beach, AustraliaHQ checked Sep 19, 2026	11-50	42 contacts →
	Partial evidence “Geotechnical Engineering and Environmental Science” Source: RevenueBase Database · checked Sep 19, 2026
9	Aurora Environmental	Partial evidence	Perth, AustraliaHQ checked Sep 19, 2026	11-50	37 contacts →
	Partial evidence “Aurora Environmental is a specialist environmental science and occupational hygiene consultancy based in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 19, 2026
10	Bluesphere Environmental	Partial evidence	Southbank, AustraliaHQ checked Sep 19, 2026	11-50	33 contacts →
	Partial evidence “BlueSphere Environmental Pty Ltd (BlueSphere) is an Australian, employee owned, specialist environmental consultancy with a strong focus on site contamination management and…” Source: RevenueBase Database · checked Sep 19, 2026
11	Assured Environmental AE	Partial evidence	Tennyson, AustraliaHQ checked Sep 19, 2026	11-50	33 contacts →
	Partial evidence “Assured Environmental (AE) is a team of experienced and trusted professionals focused on delivering high quality, responsive and practical environmental monitoring and consulting…” Source: RevenueBase Database · checked Sep 19, 2026
12	Bajwa Enviroconsult	Partial evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	25 contacts →
	Partial evidence “The team at Bajwa EnviroConsult offers a broad range of experience in the environmental sector.” Source: RevenueBase Database · checked Sep 19, 2026
13	Lotsearch Spatial Intelligence Mapping Risk	Strong evidence	North Sydney, AustraliaHQ checked Sep 19, 2026	11-50	22 contacts →
	Strong evidence “Lotsearch are the leading provider of environmental due diligence reports helping to identity risk to land and property.” Source: RevenueBase Database · checked Sep 19, 2026
14	JMB Environmental Consulting PTY LTD	Partial evidence	Alexandria, AustraliaHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “A deliberate, strategic multi disciplinary environmental consultancy, providing reliable and customer focused risk management services, from large scale portfolios through to the…” Source: RevenueBase Database · checked Sep 19, 2026
15	Octief PTY LTD	Indirect evidence	Yatala, AustraliaHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “OCTIEF Pty Ltd is built upon a solid foundation of integrity, knowledge and innovation.” Source: RevenueBase Database · checked Sep 19, 2026
16	Site Environmental And Remediation Services Sers	Partial evidence	Perth, AustraliaHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “Established in 2008, Site Environmental & Remediation Services Pty Ltd (SERS) provides cost effective, client focused environmental services across the whole of Australia.” Source: RevenueBase Database · checked Sep 19, 2026
17	Robson Environmental PTY LTD	Partial evidence	Fyshwick, AustraliaHQ checked Sep 19, 2026	11-50	17 contacts →
	Partial evidence “Robson Environmental is a wholly Australian owned customer focused multi-disciplinary Environmental Consultancy and Registered Training Organisation.” Source: RevenueBase Database · checked Sep 19, 2026
18	Future-Plus Environmental	Partial evidence	Warana, AustraliaHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “Expert Environmental Planners, Environmental Scientists and Environmental Engineering.” Source: RevenueBase Database · checked Sep 19, 2026
19	EHO Consulting	Indirect evidence	Pennant Hills, AustraliaHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “EHO Consulting is a young, reliable and dynamic company focusing on quality.” Source: RevenueBase Database · checked Sep 19, 2026
20	MJD Environmental	Partial evidence	Warabrook, AustraliaHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Our services cover a multitude of environmental areas, some of which are listed below: Project Management Ecology & NRM Legislation, Policy and Strategy Restoration Management…” Source: RevenueBase Database · checked Sep 19, 2026
21	QED Environmental Services	Partial evidence	Perth \| Brisbane \| Melbourne \| Sydney, AustraliaHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “In the built environment you will find us at the intersection of risks to wellbeing, and global concerns for sustainability.” Source: RevenueBase Database · checked Sep 19, 2026
22	DRC Environmental PTY LTD	Partial evidence	Kew East, AustraliaHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “DRC Environmental is underpinned by highly experienced and professional environmental scientists and engineers ready to assist with any project or challenge that may eventuate.” Source: RevenueBase Database · checked Sep 19, 2026
23	Aventus Consulting PTY LTD	Partial evidence	Heatherton, AustraliaHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “Welcome to Aventus Consulting Pty Ltd (Aventus), a consultancy specialising in the provision of environmental advice, approvals, assurance and auditing services to the energy…” Source: RevenueBase Database · checked Sep 19, 2026
24	Tectonic Geotechnical And Environmental Consultants	Partial evidence	Buderim, AustraliaHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “Tectonic is a geotechnical and environmental engineering consultancy owned and operated by Ashley Davey, a Registered Professional Engineer (RPEQ 8159) with over 18 years of…” Source: RevenueBase Database · checked Sep 19, 2026
25	Enrs PTY LTD	Partial evidence	Shoalhaven, AustraliaHQ checked Sep 19, 2026	1-10	13 contacts →
	Partial evidence “Established in 2006 ENRS is a Shoalhaven based consulting group providing professional services in Environment and Natural Resource Management.” Source: RevenueBase Database · checked Sep 19, 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: environmental due diligence 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 environmental due diligence firms.
Partial evidence: Its own public description names part of environmental due diligence firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental due diligence 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 25 of 196 environmental due diligence firms based in Australia

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Environmental due diligence firms based in Australia at a glance

As of Sep 19, 2026

58.6%Verified-email coverage

9.6Average contacts per company

1-10Median size (employees)

9.7%Largest-city concentration · Sydney

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

131

11-50

51-200

201-500

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 196 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 environmental due diligence 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 “environmental due diligence 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 environmental due diligence 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 environmental due diligence 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, 1,101 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 19, 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 environmental due diligence 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 environmental due diligence firms are there based in Australia?

RevenueBase identified 196 environmental due diligence 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?

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

Which city has the most environmental due diligence firms?

Sydney leads with 19 headquartered companies, followed by Brisbane (15) 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 1,101 verified decision-maker contacts tracked across these 196 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 19, 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.