Company lists · Data refreshed September 2026

Top 25 Geothermal heating installers based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 76 companies tracked

RevenueBase identified 76 geothermal heating installers headquartered in Australia as of September 2026 and tracks 613 professional contacts across them, including 271 with verified work emails. Melbourne is the largest hub.

This list covers geothermal heating installers 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 19, 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 19, 2026 86% judged on-target in blind review

76Companies

613Contacts tracked

271Verified emails

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The 25 largest geothermal heating installers based in Australia

Ranked by team size

Top 25 of 76 geothermal heating installers based in Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to geothermal heating installers: 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	Rinnai Australia	Indirect evidence	Braeside, AustraliaHQ checked Sep 19, 2026	201-500	294 contacts →
	Indirect evidence “Following Rinnai's international origins dating back more than 100 years, Rinnai Australia was established 50 years ago and since then has been providing Australians with the best…” Source: RevenueBase Database · checked Sep 19, 2026
2	Automatic Heating Global PTY LTD	Partial evidence	Epping, AustraliaHQ checked Sep 19, 2026	51-200	56 contacts →
	Partial evidence “Celebrating 100 years in 2026, Automatic Heating is Australia's leading provider of commercial heating and hot water solutions.” Source: RevenueBase Database · checked Sep 19, 2026
3	Alliance Climate Control	Indirect evidence	Alexandria, AustraliaHQ checked Sep 19, 2026	51-200	22 contacts →
	Indirect evidence “Alliance Climate Control is dedicated to your year round comfort and life style.” Source: RevenueBase Database · checked Sep 19, 2026
4	Hunt Heating	Partial evidence	Keysborough, AustraliaHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Hunt Hydronic Heating is Australia’s number one provider of premium hydronic heating and hydronic cooling solutions for your home or business.” Source: RevenueBase Database · checked Sep 19, 2026
5	Devex Systems	Partial evidence	Mona Vale, AustraliaHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “At Devex Systems, we specialise in heating & cooling solutions for new and existing buildings in residential, commercial and industrial environments.” Source: RevenueBase Database · checked Sep 19, 2026
6	Empower Solar Australia	Indirect evidence	Canning Vale, AustraliaHQ checked Sep 19, 2026	11-50	14 contacts →
	Indirect evidence “Empower Solar Australia (ESA) is proudly a local Western Australian owned and operated business.” Source: RevenueBase Database · checked Sep 19, 2026
7	Luxury Heating & Cooling	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	9 contacts →
	Partial evidence “At Luxury Heating and Cooling, we provide specialist central heating and air conditioning systems for premium residential property.” Source: RevenueBase Database · checked Sep 19, 2026
8	Frazer AIR	Partial evidence	Thomastown, AustraliaHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “At Frazer Air, we specialise in delivering smart, efficient heating and cooling solutions for residential homes and large-scale building projects.” Source: RevenueBase Database · checked Sep 19, 2026
9	Hitech HOT Water	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	11-50	4 contacts →
	Indirect evidence “We provide energy-efficient hot water heat pumps for homes and businesses across NSW and VIC.” Source: RevenueBase Database · checked Sep 19, 2026
10	CWL Group	Strong evidence	Miranda, AustraliaHQ checked Sep 19, 2026	11-50	4 contacts →
	Strong evidence “CWL Group are industry leaders in Geothermal Exchange heating and cooling, integrated heating systems and hydraulic projects across Greater Sydney and Southern Highlands.” Source: RevenueBase Database · checked Sep 19, 2026
11	Direct Energy Australia	Indirect evidence	West Perth, AustraliaHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Direct Energy Australia is a diversified renewable-energy solutions company.” Source: RevenueBase Database · checked Sep 19, 2026
12	CK Electrical, Solar & Air-Conditioning	Indirect evidence	Coopers Plains, AustraliaHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “CK Electrical, Solar & Air Conditioning is Brisbane’s trusted provider of premium energy-efficient solutions.” Source: RevenueBase Database · checked Sep 19, 2026
13	Geoexchange Australia	Partial evidence	North Sydney, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “GeoExchange Australia Pty Ltd pioneered the ground source / geothermal heat pump industry in Australia.” Source: RevenueBase Database · checked Sep 19, 2026
14	Online AIR And Solar	Partial evidence	Epping, AustraliaHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial evidence “At Online Air and Solar, we are passionate about delivering the best quality of home heating and cooling and solar energy systems.” Source: RevenueBase Database · checked Sep 19, 2026
15	Everwarm PTY LTD	Partial evidence	Goulburn, AustraliaHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Everwarm designs, supplies and installs renewable hydronic heating and cooling systems to residential and commercial customers in New South Wales, Australia.” Source: RevenueBase Database · checked Sep 19, 2026
16	SÓ Geothermal	Partial evidence	Carrum Downs, AustraliaHQ checked Sep 19, 2026	11-50	2 contacts →
	Partial evidence “SóGeo is at the forefront of sustainable energy solutions, offering Australians a comprehensive lifestyle heating and cooling system that's not only good for the planet but also…” Source: RevenueBase Database · checked Sep 19, 2026
17	Paladin Services Australia	Partial evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Paladin Services are experts in residential and commercial pool heating, hot water, HVAC and pool covers installation and repairs.” Source: RevenueBase Database · checked Sep 19, 2026
18	Adam Solar PTY LTD	Indirect evidence	Adelaide, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Established in 2011, Adam Solar is an Australian owned residential and commercial solar installation specialist based in Adelaide, South Australia.” Source: RevenueBase Database · checked Sep 19, 2026
19	Ureco Solar HOT Water & Heat Pumps Perth	Partial evidence	Perth, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Partial evidence “Offering innovative Australian designed water heating products that save our customers money.” Source: RevenueBase Database · checked Sep 19, 2026
20	Albany Solar	Indirect evidence	Mira Mar, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
21	Ecotherm Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Ecotherm Australia is passionate about the promotion of energy efficiency and sustainability in the HVAC industry.” Source: RevenueBase Database · checked Sep 19, 2026
22	Solar Plumb Solutions	Indirect evidence	Rivervale, AustraliaHQ checked Sep 19, 2026	1-10	2 contacts →
	Indirect evidence “Solar Plumb Solutions is a local solar provider in Perth.” Source: RevenueBase Database · checked Sep 19, 2026
23	Jaicrest AIR Conditioning	Partial evidence	Willoughby, AustraliaHQ checked Sep 19, 2026	n/a	2 contacts →
	Partial evidence “Jaicrest has been perfecting high efficiency reverse cycle installations for heating and air conditioning since 1990.” Source: RevenueBase Database · checked Sep 19, 2026
24	Melbourne Heat Pumps	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	11-50	1 contacts →
	Indirect evidence “Melbourne Heat Pumps are a Melbourne based company specializing in Solar Efficient Electric Hot Water Systems.” Source: RevenueBase Database · checked Sep 19, 2026
25	Solahart Townsville	Indirect evidence	Garbutt, AustraliaHQ checked Sep 19, 2026	11-50	1 contacts →
	Indirect evidence “Solahart Townsville is a company based out of 77 Pilkington St, Garbutt, Queensland, Australia.” Source: RevenueBase Database · checked Sep 19, 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 heating installers. 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 heating installers.
Partial evidence: Its own public description names part of geothermal heating installers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geothermal heating installers. 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 76 geothermal heating installers based in Australia

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Geothermal heating installers based in Australia at a glance

As of Sep 19, 2026

44.2%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

9.2%Largest-city concentration · Melbourne

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 76 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 heating installers, 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 heating installers”. 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 heating installers), 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 heating installers, 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, 271 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 19, 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.

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 heating installers, 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 heating installers are there based in Australia?

RevenueBase identified 76 geothermal heating installers 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?

Rinnai Australia, headquartered in Braeside, tops this list with the largest team on record.

Which city has the most geothermal heating installers?

Melbourne leads with 7 headquartered companies, followed by Sydney (5) and Perth (4).

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 271 verified decision-maker contacts tracked across these 76 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 19, 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.