Company lists · Data refreshed September 2026

Top 25 Environmental impact assessment companies based in Australia

Name: Environmental impact assessment companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 447 companies tracked

RevenueBase identified 447 environmental impact assessment companies headquartered in Australia as of September 2026 and tracks 5,334 professional contacts across them, including 3,018 with verified work emails. Perth is the largest hub.

This list covers environmental impact assessment companies 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

447Companies

5,334Contacts tracked

3,018Verified emails

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The 25 largest environmental impact assessment companies based in Australia

Ranked by team size

Top 25 of 447 environmental impact assessment companies 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 impact assessment companies: 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	EMM Consulting PTY Limited	Indirect evidence	St Leonards, AustraliaHQ checked Sep 19, 2026	201-500	361 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 19, 2026
2	Umwelt Environmental & Social Consultants	Indirect evidence	Teralba, AustraliaHQ checked Sep 19, 2026	201-500	329 contacts →
	Indirect evidence “Umwelt has been trusted by clients and communities for over 30 years.” Source: RevenueBase Database · checked Sep 19, 2026
3	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
4	ECO Logical Australia PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	201-500	211 contacts →
	Indirect evidence “We exist to empower people to make a difference.” Source: RevenueBase Database · checked Sep 19, 2026
5	Senversa	Partial evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	201-500	181 contacts →
	Partial evidence “Senversa is an Australian, employee-owned environmental, engineering & sustainability professional services firm, specialising in the provision of environmental approvals, ground…” Source: RevenueBase Database · checked Sep 19, 2026
6	Biosis PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	51-200	136 contacts →
	Indirect evidence “Biosis is a team of qualified and professional consultants, experienced in and passionate about ecology and cultural heritage.” Source: RevenueBase Database · checked Sep 19, 2026
7	Earth Systems	Partial evidence	Port Melbourne, AustraliaHQ checked Sep 19, 2026	51-200	101 contacts →
	Partial 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 19, 2026
8	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
9	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
10	Natural Area	Partial evidence	Malaga, AustraliaHQ checked Sep 19, 2026	51-200	76 contacts →
	Partial evidence “Natural Area is a wholly Western Australian owned and operated company providing environmental consulting and on-ground environmental management to government, property…” Source: RevenueBase Database · checked Sep 19, 2026
11	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
12	Ecology And Heritage Partners PTY LTD	Indirect evidence	Ascot Vale, AustraliaHQ checked Sep 19, 2026	51-200	68 contacts →
	Indirect evidence “Thank you for visiting Ecology and Heritage Partners.” Source: RevenueBase Database · checked Sep 19, 2026
13	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
14	E2m	Partial evidence	Milton, AustraliaHQ checked Sep 19, 2026	11-50	64 contacts →
	Partial evidence “At e2m, we set the consultancy standard for terrestrial ecology, environmental approvals and environmental compliance.” Source: RevenueBase Database · checked Sep 19, 2026
15	Nature Advisory	Indirect evidence	Alphington, AustraliaHQ checked Sep 19, 2026	51-200	63 contacts →
	Indirect evidence “Nature Advisory is an independent ecological consultancy that proactively balances project outcomes with biodiversity protection.” Source: RevenueBase Database · checked Sep 19, 2026
16	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
17	O2marine	Partial evidence	Fremantle, AustraliaHQ checked Sep 19, 2026	51-200	48 contacts →
	Partial evidence “O2 Marine provides clients with efficient and high quality environmental and project outcomes.” Source: RevenueBase Database · checked Sep 19, 2026
18	ERIAS	Strong evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	46 contacts →
	Strong 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 19, 2026
19	Anderson Environment & Planning	Partial evidence	Carrington, AustraliaHQ checked Sep 19, 2026	51-200	44 contacts →
	Partial evidence “Anderson Environment & Planning is an environmental consulting company based out of 10 Darvall St, Carrington, Australia.” Source: RevenueBase Database · checked Sep 19, 2026
20	MBS Environmental	Partial evidence	West Perth, AustraliaHQ checked Sep 19, 2026	11-50	44 contacts →
	Partial evidence “MBS Environmental (formerly Martinick McNulty Pty Ltd) was established in 1978 and is based in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 19, 2026
21	RHELM	Indirect evidence	Neutral Bay, AustraliaHQ checked Sep 19, 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 19, 2026
22	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
23	Wolfpeak	Partial evidence	Port Macquarie, AustraliaHQ checked Sep 19, 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 19, 2026
24	IEMA	Partial evidence	Merewether, AustraliaHQ checked Sep 19, 2026	11-50	34 contacts →
	Partial evidence “Founded in 2018, IEMA is dedicated to delivering projects that benefit both businesses and the environment, along with the communities in which they operate.” Source: RevenueBase Database · checked Sep 19, 2026
25	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

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 impact assessment companies. 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 impact assessment companies.
Partial evidence: Its own public description names part of environmental impact assessment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental impact assessment companies. 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 447 environmental impact assessment companies based in Australia

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Environmental impact assessment companies based in Australia at a glance

As of Sep 19, 2026

56.6%Verified-email coverage

11.9Average contacts per company

1-10Median size (employees)

7.6%Largest-city concentration · Perth

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

302

11-50

113

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 447 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 impact assessment companies, 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 impact assessment companies”. 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 impact assessment companies), 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 impact assessment companies, 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, 3,018 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.

Environmental impact assessment companies 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 environmental impact assessment companies, 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 impact assessment companies are there based in Australia?

RevenueBase identified 447 environmental impact assessment companies 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?

EMM Consulting PTY Limited, headquartered in St Leonards, tops this list with the largest team on record.

Which city has the most environmental impact assessment companies?

Perth leads with 34 headquartered companies, followed by Melbourne (32) and Brisbane (30).

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 3,018 verified decision-maker contacts tracked across these 447 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.