Company lists · Data refreshed October 2026

Top 23 Environmental consulting companies for oil and gas based in Australia

Name: Environmental consulting companies for oil and gas based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 558 companies tracked

RevenueBase identified 558 company matches for environmental consulting companies for oil and gas associated with Australia as of October 2026 and tracks 5,857 professional contacts across them, including 2,837 with verified work emails. Perth is the largest hub.

This list covers company matches for environmental consulting companies for oil and gas 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 October 12, 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 Oct 12, 2026 How this list was built

558Companies

5,857Contacts tracked

2,837Verified emails

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The 23 largest environmental consulting companies for oil and gas based in Australia

Ranked by team size

Top 23 of 558 company matches for environmental consulting companies for oil and gas based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	GPA Engineering	Exact match	Unley, AustraliaHQ recorded Oct 12, 2026	201-500	338 contacts →
	Exact match “A highly experienced, multidisciplinary engineering and management firm, GPA has consulted and provided engineering, procurement and construction management (EPCM) services, since…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Jbs&g	Exact match	Sydney, AustraliaHQ recorded Oct 12, 2026	201-500	270 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 · Oct 12, 2026 · View company records in RevenueBase
3	Senversa	Exact match	Melbourne, AustraliaHQ recorded Oct 12, 2026	201-500	190 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 · Oct 12, 2026 · View company records in RevenueBase
4	RSC	Exact match	Perth, AustraliaHQ recorded Oct 12, 2026	51-200	172 contacts →
	Exact match “RSC was established early in 2008 and now operates a global group of companies with subsidiaries in Africa, Asia, Oceania and Europe.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	MEC	Exact match	Brisbane City, AustraliaHQ recorded Oct 12, 2026	51-200	165 contacts →
	Exact match “MEC is a leading global technical consulting firm dedicated to servicing the mining industry.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Mining ONE Consultants	Exact match	Melbourne, AustraliaHQ recorded Oct 12, 2026	51-200	127 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 · Oct 12, 2026 · View company records in RevenueBase
7	Alliance Geotechnical	Exact match	Seven Hills, AustraliaHQ recorded Oct 12, 2026	51-200	122 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 · Oct 12, 2026 · View company records in RevenueBase
8	Snowden Optiro	Exact match	Perth, AustraliaHQ recorded Oct 12, 2026	51-200	101 contacts →
	Exact match “We are a mining advisory, consulting, training and software business.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Xenith	Exact match	Brisbane, AustraliaHQ recorded Oct 12, 2026	51-200	100 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 · Oct 12, 2026 · View company records in RevenueBase
10	Natural Area	Exact match	Malaga, AustraliaHQ recorded Oct 12, 2026	51-200	85 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 · Oct 12, 2026 · View company records in RevenueBase
11	Hydrobiology	Exact match	Milton, AustraliaHQ recorded Oct 12, 2026	11-50	68 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 · Oct 12, 2026 · View company records in RevenueBase
12	Opec Systems	Exact match	Lennox Head, AustraliaHQ recorded Oct 12, 2026	51-200	66 contacts →
	Exact match “Public and private sector organisations across the globe choose OPEC Systems to creatively and intelligently solve their environmental engineering challenges.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	E2m	Exact match	Milton, AustraliaHQ recorded Oct 12, 2026	11-50	66 contacts →
	Exact match “At e2m, we set the consultancy standard for terrestrial ecology, environmental approvals and environmental compliance.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Environmental Earth Sciences International Eesi	Exact match	Chatswood, AustraliaHQ recorded Oct 12, 2026	51-200	57 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 · Oct 12, 2026 · View company records in RevenueBase
15	Agon Environmental	Exact match	Fullarton, AustraliaHQ recorded Oct 12, 2026	11-50	52 contacts →
	Exact match “Agon Environmental is an Australian consultancy delivering quality environmental services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Anderson Environment & Planning	Exact match	Carrington, AustraliaHQ recorded Oct 12, 2026	51-200	48 contacts →
	Exact match “Anderson Environment & Planning is an environmental consulting company based out of 10 Darvall St, Carrington, Australia.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Fire & Safety Systems	Exact match	Brisbane City, AustraliaHQ recorded Oct 12, 2026	11-50	45 contacts →
	Exact match “Specialist fire protection consultants, engineers and project managers, with a focus on high-risk industrial applications.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	MBS Environmental	Exact match	West Perth, AustraliaHQ recorded Oct 12, 2026	11-50	44 contacts →
	Exact match “MBS Environmental (formerly Martinick McNulty Pty Ltd) was established in 1978 and is based in Perth, Western Australia.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	RHELM	Exact match	Neutral Bay, AustraliaHQ recorded Oct 12, 2026	11-50	43 contacts →
	Exact match “Rhelm is a specialist consulting company offering professional services to clients in Australia and internationally.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Resolve Environmental	Exact match	Melbourne, AustraliaHQ recorded Oct 12, 2026	11-50	37 contacts →
	Exact match “Resolve Environmental specialises in delivering strategic and practical environmental solutions for a wide range of environmental issues to our clients across Australia.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Assured Environmental AE	Exact match	Tennyson, AustraliaHQ recorded Oct 12, 2026	11-50	37 contacts →
	Exact match “Assured Environmental (AE) is a team of experienced and trusted professionals focused on delivering high quality, responsive and practical environmental monitoring and consulting…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Helia EHS	Exact match	South Melbourne, AustraliaHQ recorded Oct 12, 2026	11-50	37 contacts →
	Exact match “Helia EHS is a team of highly qualified environmental and safety consultants led by company directors with extensive experience in the OH & S and environmental sectors.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Bluesphere Environmental	Exact match	Southbank, AustraliaHQ recorded Oct 12, 2026	11-50	36 contacts →
	Exact match “BlueSphere Environmental Pty Ltd (BlueSphere) is an Australian, employee owned, specialist environmental consultancy with a strong focus on site contamination management and…” Recorded in the RevenueBase company graph · Oct 12, 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 companies for oil and gas”. 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 23 of 558 environmental consulting companies for oil and gas based in Australia

See the full list, filter by size, metro and specialty, and access 2,837 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental consulting companies for oil and gas based in Australia at a glance

As of Oct 12, 2026

48.4%Verified-email coverage

10.5Average contacts per company

1-10Median size (employees)

16.3%Largest-city concentration · Perth

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

363

11-50

142

51-200

201-500

501-1,000

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 558 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 consulting companies for oil and gas” 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 2,837 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 October 12, 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 companies for oil and gas 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 companies for oil and gas”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consulting companies for oil and gas are there based in Australia?

RevenueBase identified 558 company matches for environmental consulting companies for oil and gas associated with Australia as of October 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?

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

Which city has the most environmental consulting companies for oil and gas?

Perth leads with 91 company records, followed by Brisbane (45) and Melbourne (45).

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 2,837 professional contacts with verified work emails tracked across these 558 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 October 12, 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.