Company lists · Data refreshed November 2026

Top 24 Environmental impact assessment consultants based in Australia

RevenueBase identified 683 company matches for environmental impact assessment consultants associated with Australia as of November 2026 and tracks 10,124 professional contacts across them, including 5,588 with verified work emails. Perth is the largest hub.

This list covers company matches for environmental impact assessment consultants associated with Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
683Companies
10,124Contacts tracked
5,588Verified emails
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The 24 largest environmental impact assessment consultants based in Australia

Ranked by team size
Top 24 of 683 company matches for environmental impact assessment consultants based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500472 contacts →

Exact match

“ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSt Leonards, AustraliaHQ recorded Nov 6, 2026201-500363 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchTeralba, AustraliaHQ recorded Nov 6, 2026201-500347 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500336 contacts →

Exact match

“pitt & sherry is an Australian-owned engineering and environmental consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500273 contacts →

Exact match

“Established in 1996, JBS & G is one of Australia’s leading environmental consultancies with offices in Sydney, Melbourne, Perth, Adelaide, Brisbane, Canberra, Darwin, Wollongong…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAdelaide, AustraliaHQ recorded Nov 6, 2026201-500247 contacts →

Exact match

“Tonkin is a leading provider of engineering, environmental and consultancy services to private and public organisations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSydney, AustraliaHQ recorded Nov 6, 2026201-500226 contacts →

Exact match

“We empower people to make a difference.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMelbourne, AustraliaHQ recorded Nov 6, 2026201-500196 contacts →

Exact match

“Senversa is an Australian, employee-owned environmental, engineering & sustainability professional services firm, specialising in the provision of environmental approvals, ground…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMelbourne, AustraliaHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“Biosis is a team of qualified and professional consultants, experienced in and passionate about ecology and cultural heritage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSydney, AustraliaHQ recorded Nov 6, 202651-200140 contacts →

Exact match

“Niche has joined Stantec as part of a 450-strong team of environmental specialists across Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBurleigh Heads, AustraliaHQ recorded Nov 6, 202651-200117 contacts →

Exact match

“Ecosure is the largest specialist privately owned environmental consultancy in Queensland, providing services across Australia and the Pacific to major projects, business…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWarners Bay, AustraliaHQ recorded Nov 6, 202651-200111 contacts →

Exact match

“As a medium sized operation, ADW Johnson has the flexibility to ensure every project receives the individual attention of a senior member of our team.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLeederville, AustraliaHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“Talis Consultants is now operating throughout Australia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBrisbane, AustraliaHQ recorded Nov 6, 202651-200103 contacts →

Exact match

“Xenith is an established consulting firm that delivers outstanding exploration, mine planning, operational and financial solutions to resources companies in Australia and around…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMelbourne, AustraliaHQ recorded Nov 6, 202611-5092 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchMalaga, AustraliaHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“Natural Area is a wholly Western Australian owned and operated company providing environmental consulting and on-ground environmental management to government, property…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBendigo, AustraliaHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“Bringing clarity to complexity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMilton, AustraliaHQ recorded Nov 6, 202611-5067 contacts →

Exact match

“Hydrobiology, part of SLR is an Environmental Consulting Company offering integrated services in the physical, biological and chemical processes of environmental systems with a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchDubbo, AustraliaHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“Barnson Pty Ltd is an independent multi-disciplinary consulting firm offering professional services in the fields of town planning, bushfire assessments, landscape architecture…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMilton, AustraliaHQ recorded Nov 6, 202611-5065 contacts →

Exact match

“At e2m, we set the consultancy standard for terrestrial ecology, environmental approvals and environmental compliance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAlphington, AustraliaHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“Nature Advisory is an independent ecological consultancy that proactively balances project outcomes with biodiversity protection.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMelbourne, AustraliaHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“CNC Project Management is an Australian infrastructure and energy consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchFremantle, AustraliaHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“O2 Marine provides clients with efficient and high quality environmental and project outcomes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchChatswood, AustraliaHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“EESI Group, a leader in brown environment consulting, serves the mining, waste & landfill, urban development, and farming sectors across Australia and the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 683 environmental impact assessment consultants based in Australia

See the full list, filter by size, metro and specialty, and access 5,588 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental impact assessment consultants based in Australia at a glance

As of Nov 6, 2026
55.2%Verified-email coverage
14.8Average contacts per company
1-10Median size (employees)
7.6%Largest-city concentration · Perth
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
444
11-50
183
51-200
30
201-500
15
501-1,000
2
1,001-5,000
2

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 683 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Australia whose business descriptions match “environmental impact assessment consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 5,588 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental impact assessment consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental impact assessment consultants are there based in Australia?

RevenueBase identified 683 company matches for environmental impact assessment consultants associated with Australia as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

ADP Consulting tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most environmental impact assessment consultants?

Perth leads with 52 company records, followed by Melbourne (50) and Sydney (48).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,588 professional contacts with verified work emails tracked across these 683 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.