Company lists · Data refreshed September 2026

Top 25 Environmental engineering companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 422 companies tracked

RevenueBase identified 422 environmental engineering companies headquartered in Australia as of September 2026 and tracks 8,780 professional contacts across them, including 4,486 with verified work emails. Sydney is the largest hub.

This list covers environmental engineering 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 15, 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 15, 2026 86% judged on-target in blind review

422Companies

8,780Contacts tracked

4,486Verified emails

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The 25 largest environmental engineering companies based in Australia

Ranked by team size

Top 25 of 422 environmental engineering companies based in Australia, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to environmental engineering 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	Veolia Australia & NEW Zealand	Partial evidence	Pyrmont, AustraliaHQ checked Sep 15, 2026	5,001-10,000	2,476 contacts →
	Partial evidence “Veolia Australia and New Zealand is a leading provider of environmental solutions across water and wastewater services, industrial cleaning, waste management and resource recovery…” Source: RevenueBase Database · checked Sep 15, 2026
2	ADP Consulting	Partial evidence	Melbourne, AustraliaHQ checked Sep 15, 2026	201-500	468 contacts →
	Partial evidence “ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.” Source: RevenueBase Database · checked Sep 15, 2026
3	Jbs&g	Partial evidence	Sydney, AustraliaHQ checked Sep 15, 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 15, 2026
4	Enviropacific	Partial evidence	Macquarie Park, AustraliaHQ checked Sep 15, 2026	201-500	260 contacts →
	Partial evidence “Enviropacific is committed to working towards creating safer environments and sustainable communities.” Source: RevenueBase Database · checked Sep 15, 2026
5	Tonkin	Strong evidence	Adelaide, AustraliaHQ checked Sep 15, 2026	201-500	237 contacts →
	Strong evidence “Tonkin is a leading provider of engineering, environmental and consultancy services to private and public organisations.” Source: RevenueBase Database · checked Sep 15, 2026
6	Engeny	Strong evidence	Brisbane, AustraliaHQ checked Sep 15, 2026	201-500	216 contacts →
	Strong evidence “Now a part of the Egis Group, Engeny provides a wide range of specialist engineering and environmental consultancy services across disciplines.” Source: RevenueBase Database · checked Sep 15, 2026
7	ECO Logical Australia PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 15, 2026	201-500	211 contacts →
	Indirect evidence “We exist to empower people to make a difference.” Source: RevenueBase Database · checked Sep 15, 2026
8	Senversa	Strong evidence	Melbourne, AustraliaHQ checked Sep 15, 2026	201-500	181 contacts →
	Strong 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 15, 2026
9	Synertec	Strong evidence	Camberwell, AustraliaHQ checked Sep 15, 2026	51-200	137 contacts →
	Strong evidence “Synertec is a diversified Technology and Engineering company focussed on developing and delivering environmentally sustainable solutions for challenging industry sectors, with…” Source: RevenueBase Database · checked Sep 15, 2026
10	Ward Civil & Environmental Engineering	Strong evidence	Lane Cove West, AustraliaHQ checked Sep 15, 2026	51-200	134 contacts →
	Strong evidence “Founded by the late Peter Ward in 1973, WARD is a multi-disciplined and full-service civil and environmental engineering contractor.” Source: RevenueBase Database · checked Sep 15, 2026
11	Earth Systems	Partial evidence	Port Melbourne, AustraliaHQ checked Sep 15, 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 15, 2026
12	Burchills Engineering Solutions	Partial evidence	South East Queensland, AustraliaHQ checked Sep 15, 2026	51-200	98 contacts →
	Partial evidence “Burchills Engineering Solutions is a South East Qld based, locally owned multidisciplinary team of professional engineers & scientists with a track record of helping clients…” Source: RevenueBase Database · checked Sep 15, 2026
13	Epic Environmental	Partial evidence	Brisbane, AustraliaHQ checked Sep 15, 2026	51-200	94 contacts →
	Partial evidence “Epic offers industry leading environmental solutions to national and selected international markets.” Source: RevenueBase Database · checked Sep 15, 2026
14	CMP Consulting Group	Partial evidence	Mulgrave, AustraliaHQ checked Sep 15, 2026	51-200	94 contacts →
	Partial evidence “CMP Consulting Group is a multi-disciplinary Engineering firm specialising in design, project management and construction phase services for the Water Industry.” Source: RevenueBase Database · checked Sep 15, 2026
15	EI Australia	Strong evidence	Pyrmont, AustraliaHQ checked Sep 15, 2026	51-200	93 contacts →
	Strong evidence “Welcome to EI Australia an Australian-owned, ISO 9001, 14001 & 4801 Certified, professional services company providing Environmental, Geotechnical and Structural engineering…” Source: RevenueBase Database · checked Sep 15, 2026
16	Adenco	Partial evidence	Wangara, AustraliaHQ checked Sep 15, 2026	51-200	93 contacts →
	Partial evidence “ADENCO is a dynamic company in the Water Management & Civil and Mechanical Engineering Industry.” Source: RevenueBase Database · checked Sep 15, 2026
17	Natural Area	Partial evidence	Malaga, AustraliaHQ checked Sep 15, 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 15, 2026
18	Opec Systems	Strong evidence	Lennox Head, AustraliaHQ checked Sep 15, 2026	51-200	70 contacts →
	Strong 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 15, 2026
19	Bligh Tanner	Strong evidence	Fortitude Valley, AustraliaHQ checked Sep 15, 2026	51-200	69 contacts →
	Strong evidence “With offices in Brisbane and Sydney, Bligh Tanner is a structural, façade, civil, environmental and water engineering consultancy distinguished by its high level of expertise…” Source: RevenueBase Database · checked Sep 15, 2026
20	Hydrobiology	Partial evidence	Milton, AustraliaHQ checked Sep 15, 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 15, 2026
21	Westera Partners PTY LTD	Strong evidence	Southport, AustraliaHQ checked Sep 15, 2026	51-200	64 contacts →
	Strong evidence “Westera is a highly respected consulting engineering firm practicing Australia wide in the disciplines of civil, structural and environmental engineering” Source: RevenueBase Database · checked Sep 15, 2026
22	Ground Science PTY LTD	Partial evidence	Thomastown, AustraliaHQ checked Sep 15, 2026	51-200	60 contacts →
	Partial evidence “Ground Science was established in 2003 as a multi-disciplinary engineering company, providing the following services throughout Victoria- Geotechnical Engineering with field and…” Source: RevenueBase Database · checked Sep 15, 2026
23	Covey Associates	Partial evidence	Sunshine Coast, AustraliaHQ checked Sep 15, 2026	51-200	54 contacts →
	Partial evidence “Established in 1990, Covey Associates Pty Ltd is a Consulting Engineering Company with offices in Maroochydore, Northlakes, Tamworth and Armidale.” Source: RevenueBase Database · checked Sep 15, 2026
24	Agon Environmental	Partial evidence	Fullarton, AustraliaHQ checked Sep 15, 2026	11-50	52 contacts →
	Partial evidence “Agon Environmental is an Australian consultancy delivering quality environmental services.” Source: RevenueBase Database · checked Sep 15, 2026
25	Environmental Earth Sciences International Eesi	Partial evidence	Chatswood, AustraliaHQ checked Sep 15, 2026	51-200	49 contacts →
	Partial evidence “EESI Group, a leader in brown environment consulting, serves the mining, waste & landfill, urban development, and farming sectors across Australia and the UK.” Source: RevenueBase Database · checked Sep 15, 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 engineering 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 engineering companies.
Partial evidence: Its own public description names part of environmental engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental engineering 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 422 environmental engineering companies based in Australia

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Environmental engineering companies based in Australia at a glance

As of Sep 15, 2026

51.1%Verified-email coverage

20.8Average contacts per company

1-10Median size (employees)

9.5%Largest-city concentration · Sydney

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

236

11-50

127

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 422 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 engineering 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 engineering 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 engineering 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 engineering 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, 4,486 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 15, 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 engineering companies by metro

Environmental engineering companies in Sydney40

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 engineering 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 engineering companies are there based in Australia?

RevenueBase identified 422 environmental engineering 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?

Veolia Australia & NEW Zealand, headquartered in Pyrmont, tops this list with the largest team on record.

Which city has the most environmental engineering companies?

Sydney leads with 40 headquartered companies, followed by Melbourne (24) and Perth (23).

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 4,486 verified decision-maker contacts tracked across these 422 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 15, 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.