Company lists · Data refreshed September 2026

Top 25 Environmental consultancy firms based in Australia

Name: Environmental consultancy 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 1,338 companies tracked

RevenueBase identified 1,338 company matches for environmental consultancy firms associated with Australia as of September 2026 and tracks 20,112 professional contacts across them, including 9,556 with verified work emails and 1,242 with mobile numbers. Melbourne is the largest hub.

This list covers company matches for environmental consultancy 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

1,338Companies

20,112Contacts tracked

9,556Verified emails

1,242Mobile numbers

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The 25 largest environmental consultancy firms based in Australia

Ranked by team size

Top 25 of 1,338 company matches for environmental consultancy 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	Calibre	Exact match	Perth, Australia	1,001-5,000	668 contacts →
	Exact match “Calibre was acquired by WSP.” 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	Abbott Risk Consulting	Exact match	Melbourne, Australia	51-200	267 contacts →
	Exact match “Abbott Risk Consulting (ARC) is a dynamic safety engineering consultancy with a world-wide reputation for delivering quality solutions to the nuclear, defence, oil and gas…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
6	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
7	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
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	FMG Engineering	Exact match	Wayville, Australia	51-200	199 contacts →
	Exact match “FMG Engineering is an award winning multi-disciplinary Engineering Consultancy providing services and solutions to the development, property and urban infrastructure sectors.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
12	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
13	Edge Consulting Engineers	Exact match	Tweed Heads South, Australia	51-200	177 contacts →
	Exact match “We're an engineering consultancy, specialising in civil, geo-environmental and structural engineering.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
14	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
15	Civil & Structural Engineering Consultants PVT LTD	Exact match	Melbourne, Australia	201-500	152 contacts →
	Exact match “Civil and Structural Engineering Consultants (Pvt) Ltd, more commonly known as ‘CSE Consultants’ is a state of the art Engineering consultancy firm comprising some of the…” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
16	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
17	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
18	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
19	NICHE	Exact match	Bulli, Australia	51-200	134 contacts →
	Exact match “Niche is the largest privately-owned specialist biodiversity and heritage consultancy in Australia.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
20	RED Earth Engineering A Geosyntec Company	Exact match	Spring Hill, Australia	51-200	114 contacts →
	Exact match “Red Earth Engineering (REE) is a specialist consultancy offering services in geotechnical, environmental and civil engineering with specialist application to Tailings Dams and…” 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	The Gild Group	Exact match	Mooloolaba, Australia	51-200	108 contacts →
	Exact match “The Gild Group is one of Australia’s fastest growing fully integrated multidisciplinary professional services firms with a comprehensive suite of best-in-class services.” Recorded in the RevenueBase company graph · Sep 2, 2026 · View company records in RevenueBase
23	ADW Johnson PTY LTD	Exact match	Warners Bay, Australia	51-200	100 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 · Sep 2, 2026 · View company records in RevenueBase
24	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
25	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

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 consultancy 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 1,338 environmental consultancy firms based in Australia

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Environmental consultancy firms based in Australia at a glance

As of Sep 2, 2026

47.5%Verified-email coverage

6.2%Mobile-number coverage

15.0Average contacts per company

1-10Median size (employees)

8.9%Largest-city concentration · Melbourne

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

858

11-50

348

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 consultancy 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 9,556 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 consultancy 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 consultancy firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consultancy firms are there based in Australia?

RevenueBase identified 1,338 company matches for environmental consultancy 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 consultancy firms?

Melbourne leads with 119 company records, followed by Sydney (108) and Perth (95).

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 9,556 professional contacts with verified work emails tracked across these 1,338 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.