Company lists · Data refreshed October 2026

Top 25 Geothermal engineering firms based in Australia

RevenueBase identified 199 company matches for geothermal engineering firms associated with Australia as of October 2026 and tracks 2,909 professional contacts across them, including 1,520 with verified work emails. Perth is the largest hub.

This list covers company matches for geothermal engineering 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 October 13, 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 13, 2026 How this list was built
199Companies
2,909Contacts tracked
1,520Verified emails
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The 25 largest geothermal engineering firms based in Australia

Ranked by team size
Top 25 of 199 company matches for geothermal engineering firms based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 13, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWest Ryde, AustraliaHQ recorded Oct 13, 2026501-1,000484 contacts →

Exact match

“Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
2Exact matchNorth Ryde, AustraliaHQ recorded Oct 13, 202651-200214 contacts →

Exact match

“PSM provides specialised design and investigation services for engineering in rock, soil and water.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
3Exact matchPerth, AustraliaHQ recorded Oct 13, 202651-200172 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 13, 2026 · View company records in RevenueBase
4Exact matchCamberwell, AustraliaHQ recorded Oct 13, 202651-200143 contacts →

Exact match

“Synertec is a diversified Technology and Engineering company focussed on developing and delivering environmentally sustainable solutions for challenging industry sectors, with…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
5Exact matchMelbourne, AustraliaHQ recorded Oct 13, 202651-200127 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 13, 2026 · View company records in RevenueBase
6Exact matchSeven Hills, AustraliaHQ recorded Oct 13, 202651-200122 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 13, 2026 · View company records in RevenueBase
7Exact matchBathurst, AustraliaHQ recorded Oct 13, 202651-200113 contacts →

Exact match

“Macquarie Geotechnical is a leading provider of geotechnical services, supporting the construction, government, mining, renewable energy, groundwater, and environmental sectors.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
8Exact matchPyrmont, AustraliaHQ recorded Oct 13, 202651-200101 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 · Oct 13, 2026 · View company records in RevenueBase
9Exact matchMacquarie Park, AustraliaHQ recorded Oct 13, 202651-20061 contacts →

Exact match

“The JK Group is a proudly employee owned and managed company that values professionalism through honesty, dependability and integrity.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
10Exact matchWest Perth, AustraliaHQ recorded Oct 13, 202651-20045 contacts →

Exact match

“Established in 1985, SGC provides integrated geophysical solutions that identify value-added outcomes for the natural resources sectors.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
11Exact matchWangara, AustraliaHQ recorded Oct 13, 202611-5042 contacts →

Exact match

“Prompt Engineering has established a reputation as an industry leader in the field of civil, structural & geotechnical engineering thanks to our commitment to fast, cost-effective…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
12Exact matchBruce, AustraliaHQ recorded Oct 13, 202611-5034 contacts →

Exact match

“We are professional geoscientists, environmental scientists, and engineers committed to providing cost-effective solutions for our clients.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
13Exact matchMilton, AustraliaHQ recorded Oct 13, 202651-20032 contacts →

Exact match

“Founded in 2012, inGauge Energy is a Well Engineering and Project Management company based in Brisbane, Australia.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
14Exact matchChinchilla, AustraliaHQ recorded Oct 13, 202651-20028 contacts →

Exact match

“OnSpec is a forward-thinking energy technology company born in Australia, serving clients worldwide.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
15Exact matchMurarrie, AustraliaHQ recorded Oct 13, 202611-5026 contacts →

Exact match

“BRS Electrical is an experienced electrical engineering design and drafting services firm located in Brisbane, Australia.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
16Exact matchNewmarket, AustraliaHQ recorded Oct 13, 202651-20026 contacts →

Exact match

“Complex specialist foundation engineering projects?”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
17Exact matchNerang, AustraliaHQ recorded Oct 13, 202611-5024 contacts →

Exact match

“PE Consulting Engineers (PECE) designs and manages the construction of electrical, mechanical, and communications systems.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
18Exact matchUnderwood, AustraliaHQ recorded Oct 13, 202611-5023 contacts →

Exact match

“Geoinventions Consulting Services Pty Ltd is a specialist geotechnical engineering consultancy, providing 'Better Engineering' solutions in geotechnical investigation, analysis…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
19Exact matchNoosa Heads, AustraliaHQ recorded Oct 13, 202611-5021 contacts →

Exact match

“When a problem solver met an innovator, RECOR was born.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
20Exact matchJolimont, AustraliaHQ recorded Oct 13, 202611-5020 contacts →

Exact match

“Rockwater is a specialist hydrogeological and environmental consulting firm with the office in Perth, Western Australia.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
21Exact matchMelbourne, AustraliaHQ recorded Oct 13, 20261-1019 contacts →

Exact match

“Civil/Structural/Geotechnical Engineering design, Innovation, field testing, optimisation, research and development in the renewable energy sector, electrical substations and…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
22Exact matchRosny Park, AustraliaHQ recorded Oct 13, 202611-5018 contacts →

Exact match

“FortEng has built a strong engineering reputation, with engineers, drafters, technicians, project managers and Directors passionate about making a difference for the benefit of…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
23Exact matchMelbourne, AustraliaHQ recorded Oct 13, 202611-5017 contacts →

Exact match

“Valenza Engineering is a global specialist groundwater engineering company providing high-quality, full-spectrum technical solutions in the fields of groundwater engineering and…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
24Exact matchSydney, AustraliaHQ recorded Oct 13, 202611-5017 contacts →

Exact match

“Beck Engineering specialises in planning, engineering and applied mechanics for extreme geotechnical environments or where corporate or expert geotechnical experience is being…”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase
25Exact matchWingham, AustraliaHQ recorded Oct 13, 202611-5016 contacts →

Exact match

“Regional Geotechnical Solutions is a civil engineering company based out of Australia.”

Recorded in the RevenueBase company graph · Oct 13, 2026 · View company records in RevenueBase

Showing 25 of 199 geothermal engineering firms based in Australia

See the full list, filter by size, metro and specialty, and access 1,520 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal engineering firms based in Australia at a glance

As of Oct 13, 2026
52.3%Verified-email coverage
14.6Average contacts per company
1-10Median size (employees)
10.1%Largest-city concentration · Perth
Oct 13, 2026Page data refreshed

Companies by employee count

1-10
112
11-50
64
51-200
21
501-1,000
1

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 199 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 “geothermal engineering 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 1,520 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 13, 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.

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

How many geothermal engineering firms are there based in Australia?

RevenueBase identified 199 company matches for geothermal engineering firms 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?

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

Which city has the most geothermal engineering firms?

Perth leads with 20 company records, followed by Melbourne (17) and Brisbane (13).

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 1,520 professional contacts with verified work emails tracked across these 199 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 13, 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.