Company lists · Data refreshed September 2026

Top 24 Ecological assessment firms based in Australia

Name: Ecological assessment 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 345 companies tracked

RevenueBase identified 345 ecological assessment firms headquartered in Australia as of September 2026 and tracks 3,843 professional contacts across them, including 1,832 with verified work emails. Melbourne is the largest hub.

This list covers ecological assessment 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

345Companies

3,843Contacts tracked

1,832Verified emails

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The 24 largest ecological assessment firms based in Australia

Ranked by team size

Top 24 of 345 ecological assessment 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 ecological assessment 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	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
2	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
3	NICHE	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	51-200	135 contacts →
	Indirect evidence “Niche is the largest privately-owned specialist biodiversity and heritage consultancy in Australia.” Source: RevenueBase Database · checked Sep 19, 2026
4	Ecosure	Indirect evidence	Burleigh Heads, AustraliaHQ checked Sep 19, 2026	51-200	105 contacts →
	Indirect evidence “Ecosure is the largest specialist privately owned environmental consultancy in Queensland, providing services across Australia and the Pacific to major projects, business…” Source: RevenueBase Database · checked Sep 19, 2026
5	Toolijooa Environmental Restoration	Indirect evidence	Terrey Hills, AustraliaHQ checked Sep 19, 2026	51-200	101 contacts →
	Indirect evidence “Toolijooa Environmental Restoration is a leading provider of environmental management and restoration services throughout the Greater Sydney Region, the Hunter and beyond.” Source: RevenueBase Database · checked Sep 19, 2026
6	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
7	Natural Area	Indirect evidence	Malaga, AustraliaHQ checked Sep 19, 2026	51-200	76 contacts →
	Indirect 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
8	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
9	Hydrobiology	Indirect evidence	Milton, AustraliaHQ checked Sep 19, 2026	11-50	67 contacts →
	Indirect 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
10	E2m	Indirect evidence	Milton, AustraliaHQ checked Sep 19, 2026	11-50	64 contacts →
	Indirect evidence “At e2m, we set the consultancy standard for terrestrial ecology, environmental approvals and environmental compliance.” Source: RevenueBase Database · checked Sep 19, 2026
11	Nature Advisory	Partial evidence	Alphington, AustraliaHQ checked Sep 19, 2026	51-200	63 contacts →
	Partial evidence “Nature Advisory is an independent ecological consultancy that proactively balances project outcomes with biodiversity protection.” Source: RevenueBase Database · checked Sep 19, 2026
12	Agon Environmental	Indirect evidence	Fullarton, AustraliaHQ checked Sep 19, 2026	11-50	52 contacts →
	Indirect evidence “Agon Environmental is an Australian consultancy delivering quality environmental services.” Source: RevenueBase Database · checked Sep 19, 2026
13	Ecocene	Partial evidence	East Perth, AustraliaHQ checked Sep 19, 2026	51-200	52 contacts →
	Partial evidence “Ecocene combines ecological expertise with data intelligence to build conservation economies.” Source: RevenueBase Database · checked Sep 19, 2026
14	O2marine	Indirect evidence	Fremantle, AustraliaHQ checked Sep 19, 2026	51-200	48 contacts →
	Indirect evidence “O2 Marine provides clients with efficient and high quality environmental and project outcomes.” Source: RevenueBase Database · checked Sep 19, 2026
15	ERIAS	Partial evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	46 contacts →
	Partial 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
16	Anderson Environment & Planning	Indirect evidence	Carrington, AustraliaHQ checked Sep 19, 2026	51-200	44 contacts →
	Indirect evidence “Anderson Environment & Planning is an environmental consulting company based out of 10 Darvall St, Carrington, Australia.” Source: RevenueBase Database · checked Sep 19, 2026
17	MBS Environmental	Indirect evidence	West Perth, AustraliaHQ checked Sep 19, 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 19, 2026
18	Assured Environmental AE	Indirect evidence	Tennyson, AustraliaHQ checked Sep 19, 2026	11-50	33 contacts →
	Indirect 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
19	North Barker Ecosystem Services	Partial evidence	Hobart, AustraliaHQ checked Sep 19, 2026	11-50	31 contacts →
	Partial evidence “North Barker is a Hobart-based company providing specialist ecological and natural values consulting services within Tasmania, as well as offshore environments within Commonwealth…” Source: RevenueBase Database · checked Sep 19, 2026
20	CQG Consulting CQ Environmental PTY LTD	Indirect evidence	Rockhampton, AustraliaHQ checked Sep 19, 2026	11-50	30 contacts →
	Indirect evidence “Regional Queensland's leading environmental, planning and engineering consultancy CQG Consulting is highly regarded as a provider of value for money, professional advisory…” Source: RevenueBase Database · checked Sep 19, 2026
21	Spectrum Ecology & Spatial	Partial evidence	Leederville, AustraliaHQ checked Sep 19, 2026	11-50	29 contacts →
	Partial evidence “Spectrum Ecology & Spatial is a dynamic environmental consultancy with the capability and experience to deliver biological assessments and monitoring, integrating conventional…” Source: RevenueBase Database · checked Sep 19, 2026
22	Ecoz Environmental Consultants	Indirect evidence	Darwin City, AustraliaHQ checked Sep 19, 2026	11-50	28 contacts →
	Indirect evidence “EcOz Environmental Consultants (EcOz) is an environmental consulting company with offices in Darwin, Katherine and Alice Springs.” Source: RevenueBase Database · checked Sep 19, 2026
23	Ecoplanning PTY LTD	Indirect evidence	Woonona, AustraliaHQ checked Sep 19, 2026	11-50	26 contacts →
	Indirect evidence “Ecoplanning is an established ecology, planning and offsets consultancy with extensive experience across the private and public sectors.” Source: RevenueBase Database · checked Sep 19, 2026
24	Ecology Australia PTY LTD	Indirect evidence	Thomastown, AustraliaHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “Ecology Australia is a leading environmental consultancy firm.” 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: ecological assessment 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 ecological assessment firms.
Partial evidence: Its own public description names part of ecological assessment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecological assessment 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 345 ecological assessment firms based in Australia

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Ecological assessment firms based in Australia at a glance

As of Sep 19, 2026

47.7%Verified-email coverage

11.1Average contacts per company

1-10Median size (employees)

7.0%Largest-city concentration · Melbourne

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

217

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 345 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 ecological assessment 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 “ecological assessment 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 ecological assessment 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 ecological assessment 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, 1,832 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 ecological assessment 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 ecological assessment firms are there based in Australia?

RevenueBase identified 345 ecological assessment 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?

ECO Logical Australia PTY LTD, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most ecological assessment firms?

Melbourne leads with 24 headquartered companies, followed by Brisbane (19) and Perth (19).

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 1,832 verified decision-maker contacts tracked across these 345 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.