Company lists · Data refreshed September 2026

Top 24 Geothermal exploration companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 227 companies tracked

RevenueBase identified 227 geothermal exploration companies headquartered in Australia as of September 2026 and tracks 3,059 professional contacts across them, including 1,142 with verified work emails. Perth is the largest hub.

This list covers geothermal exploration 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 20, 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 20, 2026 86% judged on-target in blind review

227Companies

3,059Contacts tracked

1,142Verified emails

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The 24 largest geothermal exploration companies based in Australia

Ranked by team size

Top 24 of 227 geothermal exploration companies based in Australia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to geothermal exploration 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	IMDEX	Indirect evidence	Perth, AustraliaHQ checked Sep 20, 2026	501-1,000	707 contacts →
	Indirect evidence “With more than 600 years of collective geoscience expertise, provided by more than 40 experts, we deliver unparalleled tenure and expertise across the global mining technology…” Source: RevenueBase Database · checked Sep 20, 2026
2	Ausdrill	Partial evidence	Kewdale, AustraliaHQ checked Sep 20, 2026	201-500	407 contacts →
	Partial evidence “Ausdrill is a premium Australian drilling company that provides exploration drilling, production drilling, blasting services and geotechnical services for mining majors through to…” Source: RevenueBase Database · checked Sep 20, 2026
3	DGR Global	Partial evidence	Brisbane, AustraliaHQ checked Sep 20, 2026	n/a	300 contacts →
	Partial evidence “DGR Global creates and develops grassroots resource exploration companies.” Source: RevenueBase Database · checked Sep 20, 2026
4	RSC	Indirect evidence	Perth, AustraliaHQ checked Sep 20, 2026	51-200	160 contacts →
	Indirect evidence “RSC was established early in 2008 and now operates a global group of companies with subsidiaries in Africa, Asia, Oceania and Europe.” Source: RevenueBase Database · checked Sep 20, 2026
5	Tri-Star Group	Partial evidence	Brisbane, AustraliaHQ checked Sep 20, 2026	51-200	53 contacts →
	Partial evidence “The Tri-Star Group has been a family-owned enterprise since 1979 and is a pioneer in resource exploration.” Source: RevenueBase Database · checked Sep 20, 2026
6	Southern Geoscience Consultants	Indirect evidence	West Perth, AustraliaHQ checked Sep 20, 2026	51-200	49 contacts →
	Indirect evidence “Established in 1985, SGC provides integrated geophysical solutions that identify value-added outcomes for the natural resources sectors.” Source: RevenueBase Database · checked Sep 20, 2026
7	Hiseis	Indirect evidence	Subiaco, AustraliaHQ checked Sep 20, 2026	11-50	36 contacts →
	Indirect evidence “HiSeis - Seismic by Fleet is a mining technology specialised in hard rock seismic solutions for targeted orebody discovery.” Source: RevenueBase Database · checked Sep 20, 2026
8	Gnomic Exploration Services PL	Partial evidence	Townsville, AustraliaHQ checked Sep 20, 2026	51-200	34 contacts →
	Partial evidence “Gnomic Exploration Services Pty Ltd is the most highly regarded exploration and mining services company in North Queensland.” Source: RevenueBase Database · checked Sep 20, 2026
9	Mcelroy Bryan Geological Services Mbgs	Partial evidence	Chatswood, AustraliaHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial evidence “ABOUT US MBGS provides a reliable quality service to exploration and mining companies and financial institutions through independent JORC resource appraisals, technical reviews…” Source: RevenueBase Database · checked Sep 20, 2026
10	Terra Search Pty. LTD	Partial evidence	Currajong, AustraliaHQ checked Sep 20, 2026	51-200	29 contacts →
	Partial evidence “P:(07) 4728 6851 - Mineral exploration services and geology company based in Townsville, North Queensland (QLD) and Perth, Western Australia (WA)- specialising in ground mag…” Source: RevenueBase Database · checked Sep 20, 2026
11	Minerals 260 Limited	Indirect evidence	West Perth, AustraliaHQ checked Sep 20, 2026	1-10	27 contacts →
	Indirect evidence “Minerals 260’s objective is to discover and develop highly profitable, stand alone precious and base metal projects.” Source: RevenueBase Database · checked Sep 20, 2026
12	Onspec DAQ	Indirect evidence	Chinchilla, AustraliaHQ checked Sep 20, 2026	51-200	26 contacts →
	Indirect evidence “OnSpec is a forward-thinking energy technology company born in Australia, serving clients worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
13	GAP Geophysics Australia PTY Limited	Partial evidence	Windsor, AustraliaHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “Gap Geophysics Australia is a Dias Geophysical company - offering a range of proprietary & unique geophysical exploration survey techniques, with advanced instrumentation and high…” Source: RevenueBase Database · checked Sep 20, 2026
14	Rockwell Drilling Services	Partial evidence	Sydney, AustraliaHQ checked Sep 20, 2026	51-200	24 contacts →
	Partial evidence “Rockwell Drilling Services is a site investigation and exploration drilling contractor servicing Australia's East Coast and the South Pacific Islands.” Source: RevenueBase Database · checked Sep 20, 2026
15	Sunstone Metals Limited	Partial evidence	Milton, AustraliaHQ checked Sep 20, 2026	11-50	23 contacts →
	Partial evidence “Sunstone Metals (ASX:STM) is an ASX-listed mineral exploration company with two world-class gold and copper assets in Ecuador.” Source: RevenueBase Database · checked Sep 20, 2026
16	Global ORE Discovery	Indirect evidence	Brisbane City, AustraliaHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “Global Ore Discovery is a leading, mineral and energy geological consultancy with a track record for discovery.” Source: RevenueBase Database · checked Sep 20, 2026
17	Wildcat Resources	Indirect evidence	West Perth, AustraliaHQ checked Sep 20, 2026	1-10	19 contacts →
	Indirect evidence “Wildcat is focused on unlocking value through discovery, targeting world-class provinces across Australia.” Source: RevenueBase Database · checked Sep 20, 2026
18	REX Minerals LTD ASX RXM	Indirect evidence	Pine Point, AustraliaHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Rex Minerals (ASX:RXM) is an ASX Listed Gold and Copper explorer with strategically placed Gold prospects in mineral rich Nevada, USA and reviving Copper in the the Yorke…” Source: RevenueBase Database · checked Sep 20, 2026
19	Medallion Metals Limited	Indirect evidence	West Perth, AustraliaHQ checked Sep 20, 2026	51-200	17 contacts →
	Indirect evidence “Medallion Metals (ASX: MM8) is building a scalable Western Australian gold producer, combining a development-stage mining operation with existing processing infrastructure to…” Source: RevenueBase Database · checked Sep 20, 2026
20	Lithos Geological Services PTY LTD	Indirect evidence	Middlemount, AustraliaHQ checked Sep 20, 2026	1-10	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
21	Fender Geophysics	Partial evidence	North Sydney, AustraliaHQ checked Sep 20, 2026	11-50	16 contacts →
	Partial evidence “Fender Geophysics is a Sydney-based geophysical survey provider offering geophysical surveys to the minerals exploration industry.” Source: RevenueBase Database · checked Sep 20, 2026
22	Moombarriga Geoscience	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Established in 2005 by Shane Evans, Moombarriga is now a market leader in the delivery and provision of cutting-edge MT acquisition and modelling services.” Source: RevenueBase Database · checked Sep 20, 2026
23	Geos Mining	Partial evidence	Milsons Point, AustraliaHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “Geos Mining is a specialist geology consultancy that covers all aspects of exploration and mining programs.” Source: RevenueBase Database · checked Sep 20, 2026
24	Geoconsult PTY LTD	Indirect evidence	Newstead, AustraliaHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “For a full description of services please visit GeoConsult is a progressive and multi-disciplinary company of consulting geoscientists and affiliated industry professionals…” Source: RevenueBase Database · checked Sep 20, 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: geothermal exploration 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 geothermal exploration companies.
Partial evidence: Its own public description names part of geothermal exploration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geothermal exploration 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 24 of 227 geothermal exploration companies based in Australia

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Geothermal exploration companies based in Australia at a glance

As of Sep 20, 2026

37.3%Verified-email coverage

13.5Average contacts per company

1-10Median size (employees)

21.1%Largest-city concentration · Perth

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

150

11-50

51-200

201-500

501-1,000

10001+

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 227 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 geothermal exploration 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 “geothermal exploration 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 geothermal exploration 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 geothermal exploration 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, 1,142 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 20, 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.

Geothermal exploration companies by metro

Geothermal exploration companies in Perth48

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 geothermal exploration 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 geothermal exploration companies are there based in Australia?

RevenueBase identified 227 geothermal exploration 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?

IMDEX, headquartered in Perth, tops this list with the largest team on record.

Which city has the most geothermal exploration companies?

Perth leads with 48 headquartered companies, followed by West Perth (24) and Melbourne (19).

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 1,142 verified decision-maker contacts tracked across these 227 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 20, 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.