Company lists · Data refreshed September 2026

Top 25 Environmental consulting firms based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 1,035 companies tracked

RevenueBase identified 1,035 company matches for environmental consulting firms associated with Australia as of September 2026 and tracks 16,512 professional contacts across them, including 8,190 with verified work emails and 1,061 with mobile numbers. Melbourne is the largest hub.

This list covers company matches for environmental consulting firms 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 September 2, 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 Sep 2, 2026 How this list was built

1,035Companies

16,512Contacts tracked

8,190Verified emails

1,061Mobile numbers

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The 25 largest environmental consulting firms based in Australia

Ranked by team size

Top 25 of 1,035 company matches for environmental consulting firms based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 2, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Tonkin Taylor	Exact match	Southbank, Australia	1,001-5,000	952 contacts →
	Exact match “At Tonkin + Taylor, we’re dedicated to creating and sustaining a better world together.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
2	FYFE	Exact match	Alice Springs, Australia	501-1,000	471 contacts →
	Exact match “Fyfe is an Australian professional services firm that delivers value through integrated engineering, environmental, planning and surveying services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
3	Umwelt Environmental & Social Consultants	Exact match	Melbourne, Australia	201-500	326 contacts →
	Exact match “Umwelt has been trusted by clients and communities for over 30 years.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
4	Pitt&sherry	Exact match	Brisbane, Australia	201-500	315 contacts →
	Exact match “pitt & sherry is an Australian-owned engineering and environmental consultancy.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
5	Jbs&g	Exact match	Perth, Australia	201-500	264 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 · Sep 2, 2026 · View company records in RevenueBase
6	Intera Incorporated	Exact match	Perth, Australia	201-500	261 contacts →
	Exact match “Established in 1974, INTERA is a geosciences and engineering consulting firm focused on providing water resources and supply, environmental, mining, radioactive waste isolation…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
7	Enviropacific	Exact match	Forrestfield, Australia	201-500	259 contacts →
	Exact match “Enviropacific is committed to working towards creating safer environments and sustainable communities.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
8	Tonkin	Exact match	Spring Hill, Australia	201-500	234 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 · Sep 2, 2026 · View company records in RevenueBase
9	ECO Logical Australia PTY LTD	Exact match	Huskisson, Australia	201-500	221 contacts →
	Exact match “We exist to empower people to make a difference.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
10	Engeny	Exact match	Melbourne, Australia	201-500	215 contacts →
	Exact match “Now a part of the Egis Group, Engeny provides a wide range of specialist engineering and environmental consultancy services across disciplines.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
11	Senversa	Exact match	Adelaide, Australia	201-500	181 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 · Sep 2, 2026 · View company records in RevenueBase
12	MEC	Exact match	West Perth, Australia	51-200	162 contacts →
	Exact match “MEC is a leading global technical consulting firm dedicated to servicing the mining industry.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
13	Premise	Exact match	Rockhampton City, Australia	51-200	150 contacts →
	Exact match “Premise is now part of Amey and operates as Amey Australia.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
14	Baird & Associates	Exact match	Sydney, Australia	51-200	142 contacts →
	Exact match “Coastal, Marine, and Environmental Engineering.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
15	Alluvium Group	Exact match	Fortitude Valley, Australia	201-500	141 contacts →
	Exact match “The Alluvium Group is an employee-owned consulting practice founded in 2006 to provide advice to government and private organisations on issues impacting on the build and natural…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
16	Mckenzie Group Consulting	Exact match	Sydney, Australia	51-200	139 contacts →
	Exact match “Backed by global leader Bureau Veritas, McKenzie Group Consulting is a team of 120+ talented, skilled and passionate professionals.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
17	Biosis PTY LTD	Exact match	Wollongong, Australia	51-200	136 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 · Sep 2, 2026 · View company records in RevenueBase
18	Envirolab Group	Exact match	Adelaide, Australia	201-500	129 contacts →
	Exact match “Envirolab Group offers a wide array of environment testing and analytical services to support investigations of inorganic and organic contaminants and pollutants.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
19	Alliance Geotechnical	Exact match	Seven Hills, Australia	51-200	119 contacts →
	Exact match “Alliance Geotechnical is an established and highly respected Geotechnical and Environmental consultancy firm with a proven track record in delivering and exceeding our client’s…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
20	Mining ONE Consultants	Exact match	Adelaide, Australia	51-200	117 contacts →
	Exact match “Mining One was established in August 2005 to provide technical expertise in the fields of geotechnical engineering, resource geology, mining engineering, processing, numerical…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
21	Talis Consultants	Exact match	Nowra, Australia	51-200	110 contacts →
	Exact match “Talis Consultants is now operating throughout Australia.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
22	Ecosure	Exact match	Mawson Lakes, Australia	51-200	104 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 · Sep 2, 2026 · View company records in RevenueBase
23	Epic Environmental	Exact match	Adelaide, Australia	51-200	99 contacts →
	Exact match “Epic offers industry leading environmental solutions to national and selected international markets.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
24	Burchills Engineering Solutions	Exact match	Scarborough, Australia	51-200	99 contacts →
	Exact match “Burchills Engineering Solutions is a South East Qld based, locally owned multidisciplinary team of professional engineers & scientists with a track record of helping clients…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
25	EI Australia	Exact match	Pyrmont, Australia	51-200	93 contacts →
	Exact match “Welcome to EI Australia an Australian-owned, ISO 9001, 14001 & 4801 Certified, professional services company providing Environmental, Geotechnical and Structural engineering…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “environmental consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,035 environmental consulting firms based in Australia

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Environmental consulting firms based in Australia at a glance

As of Sep 2, 2026

49.6%Verified-email coverage

6.4%Mobile-number coverage

16.0Average contacts per company

1-10Median size (employees)

8.5%Largest-city concentration · Melbourne

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

656

11-50

279

51-200

201-500

501-1,000

1,001-5,000

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 consulting firms” 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 8,190 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 September 2, 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.

Environmental consulting firms by metro

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 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consulting firms are there based in Australia?

RevenueBase identified 1,035 company matches for environmental consulting firms associated with Australia as of September 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?

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

Which city has the most environmental consulting firms?

Melbourne leads with 88 company records, followed by Perth (80) and Sydney (78).

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 8,190 professional contacts with verified work emails tracked across these 1,035 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 September 2, 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.