Company lists · Data refreshed September 2026

Top 25 Hvac engineering firms based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 879 companies tracked

RevenueBase identified 879 hvac engineering firms headquartered in Australia as of September 2026 and tracks 9,763 professional contacts across them, including 4,744 with verified work emails. Sydney is the largest hub.

This list covers hvac engineering firms 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 16, 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 16, 2026 86% judged on-target in blind review

879Companies

9,763Contacts tracked

4,744Verified emails

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The 25 largest hvac engineering firms based in Australia

Ranked by team size

Top 25 of 879 hvac engineering firms based in Australia, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to hvac engineering firms: 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	A.G. Coombs	Indirect evidence	Moorabbin, AustraliaHQ checked Sep 16, 2026	1,001-5,000	502 contacts →
	Indirect evidence “A.G.” Source: RevenueBase Database · checked Sep 16, 2026
2	Airmaster	Partial evidence	Scoresby, AustraliaHQ checked Sep 16, 2026	1,001-5,000	495 contacts →
	Partial evidence “At Airmaster, our goal is to lead the way in integrated building services, combining HVAC & R, building automation, electrical, and fire systems to create smart buildings that are…” Source: RevenueBase Database · checked Sep 16, 2026
3	TTW	Partial evidence	North Sydney, AustraliaHQ checked Sep 16, 2026	501-1,000	472 contacts →
	Partial evidence “Great engineering starts with great people.” Source: RevenueBase Database · checked Sep 16, 2026
4	Daikin Australia	Indirect evidence	Chipping Norton, AustraliaHQ checked Sep 16, 2026	501-1,000	404 contacts →
	Indirect evidence “Founded in 1969, Daikin Australia have been providing air conditioned comfort for homes, commercial developments and community projects across Australia for over 50 years.” Source: RevenueBase Database · checked Sep 16, 2026
5	Rinnai Australia	Indirect evidence	Braeside, AustraliaHQ checked Sep 16, 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 16, 2026
6	VAE Group	Partial evidence	Darra, AustraliaHQ checked Sep 16, 2026	201-500	271 contacts →
	Partial evidence “VAE engineers, constructs and manages Smarter HVAC Solutions.” Source: RevenueBase Database · checked Sep 16, 2026
7	D&e AIR Conditioning	Indirect evidence	Rowville, AustraliaHQ checked Sep 16, 2026	501-1,000	262 contacts →
	Indirect evidence “Established in Melbourne in 1989, D&E Air Conditioning has grown to become a market and knowledge leader in the delivery of sustainable climate solutions.” Source: RevenueBase Database · checked Sep 16, 2026
8	Precise AIR Group	Partial evidence	Sydney Olympic Park, AustraliaHQ checked Sep 16, 2026	201-500	229 contacts →
	Partial evidence “At Precise we specialise in delivering integrated, whole-of-life HVAC, Fire, MFE and HVAC Hygiene solutions across Australia.” Source: RevenueBase Database · checked Sep 16, 2026
9	Ellis AIR Conditioning	Indirect evidence	Moorabbin Airport, AustraliaHQ checked Sep 16, 2026	201-500	217 contacts →
	Indirect evidence “Established in 1964, Ellis Air Conditioning has a long history of successfully completing mechanical services projects and preventative maintenance programs for many various…” Source: RevenueBase Database · checked Sep 16, 2026
10	Alerton Australia	Indirect evidence	Mulgrave, AustraliaHQ checked Sep 16, 2026	201-500	149 contacts →
	Indirect evidence “Alerton Australia is a leader in building control and management systems.” Source: RevenueBase Database · checked Sep 16, 2026
11	MEP	Indirect evidence	Bibra Lake, AustraliaHQ checked Sep 16, 2026	201-500	149 contacts →
	Indirect evidence “MEP is an award-winning building services contractor specializing in multiple disciplines across the construction industry.” Source: RevenueBase Database · checked Sep 16, 2026
12	Climatech Group	Indirect evidence	Kogarah, AustraliaHQ checked Sep 16, 2026	201-500	123 contacts →
	Indirect evidence “Climatech is one of the largest mechanical services contractors within Australia and New Zealand - we offer comprehensive air conditioning solutions to a variety of built…” Source: RevenueBase Database · checked Sep 16, 2026
13	BSE Australia	Partial evidence	North Sydney, AustraliaHQ checked Sep 16, 2026	51-200	121 contacts →
	Partial evidence “Building Services Engineers (BSE) is a 100% Australian-owned national engineering consultancy established in 1994.” Source: RevenueBase Database · checked Sep 16, 2026
14	TMK Consulting Engineers	Partial evidence	Adelaide, AustraliaHQ checked Sep 16, 2026	51-200	102 contacts →
	Partial evidence “TMK Consulting Engineers success and growth is built on a reputation of delivering broad-based engineering design that is high quality, technical excellence, reliable and building…” Source: RevenueBase Database · checked Sep 16, 2026
15	COVA	Partial evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	51-200	101 contacts →
	Partial evidence “Engineering Better Lives” Source: RevenueBase Database · checked Sep 16, 2026
16	Benmax	Indirect evidence	Queanbeyan East, AustraliaHQ checked Sep 16, 2026	201-500	82 contacts →
	Indirect evidence “We design, manufacture, build and maintain specialised mechanical systems for commercial and industrial facilities to provide healthy, safe and efficient indoor environments for…” Source: RevenueBase Database · checked Sep 16, 2026
17	Bligh Tanner	Partial evidence	Fortitude Valley, AustraliaHQ checked Sep 16, 2026	51-200	69 contacts →
	Partial 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 16, 2026
18	Adams Consulting Engineers PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	51-200	63 contacts →
	Indirect evidence “Adams Consulting Engineers began in Melbourne in 1991, with a small team of talented structural and civil consulting engineers.” Source: RevenueBase Database · checked Sep 16, 2026
19	MIZCO	Indirect evidence	Malaga, AustraliaHQ checked Sep 16, 2026	51-200	58 contacts →
	Indirect evidence “MIZCO is a diversified Western Australian owned and operated Electrical / Mechanical Building Services Company involved in the Commercial, Industrial, and Oil & Gas Sectors.” Source: RevenueBase Database · checked Sep 16, 2026
20	Bestec PTY LTD	Partial evidence	Adelaide, AustraliaHQ checked Sep 16, 2026	51-200	54 contacts →
	Partial evidence “We are a consulting engineering firm focused on bringing buildings to life.” Source: RevenueBase Database · checked Sep 16, 2026
21	Wrap Consulting Engineering	Partial evidence	Richmond, AustraliaHQ checked Sep 16, 2026	51-200	48 contacts →
	Partial evidence “WRAP Engineering is a comprehensive building services consultancy focused on delivering the highest level of personalised service to its clients.” Source: RevenueBase Database · checked Sep 16, 2026
22	Ashburner Francis	Partial evidence	East Brisbane, AustraliaHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “Ashburner Francis is an engineering firm specialising in mechanical, electrical, hydraulic and ESD services for buildings and urban developments.” Source: RevenueBase Database · checked Sep 16, 2026
23	ARA Mechanical	Partial evidence	Kingsgrove, AustraliaHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “ARA Mechanical Services Pty Ltd is a leader in Design, Installation, Servicing and Maintaining commercial and industrial air conditioning systems including all HVAC requirements.” Source: RevenueBase Database · checked Sep 16, 2026
24	Innotech Controls	Partial evidence	Brisbane, AustraliaHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “Innotech Control Systems design, manufacture and service Heating, Ventilation and Air Conditioning (HVAC), Environmental Control, and Building Automation/Management Systems…” Source: RevenueBase Database · checked Sep 16, 2026
25	Sellick Consultants PTY LTD	Partial evidence	Braddon, AustraliaHQ checked Sep 16, 2026	11-50	40 contacts →
	Partial evidence “Sellick Consultants is an award winning, multi-disciplinary engineering consulting firm offering superior design skills in the fields of structural, civil and hydraulic…” Source: RevenueBase Database · checked Sep 16, 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: hvac engineering firms. 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 hvac engineering firms.
Partial evidence: Its own public description names part of hvac engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac engineering firms. 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 879 hvac engineering firms based in Australia

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Hvac engineering firms based in Australia at a glance

As of Sep 16, 2026

48.6%Verified-email coverage

11.1Average contacts per company

11-50Median size (employees)

6.9%Largest-city concentration · Sydney

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

396

11-50

355

51-200

201-500

501-1,000

1,001-5,000

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 879 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 hvac engineering firms, 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 “hvac engineering firms”. 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 hvac engineering firms), 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 hvac engineering firms, 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, 4,744 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 16, 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.

Hvac engineering firms by metro

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 hvac engineering firms, 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 hvac engineering firms are there based in Australia?

RevenueBase identified 879 hvac engineering firms 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?

A.G. Coombs, headquartered in Moorabbin, tops this list with the largest team on record.

Which city has the most hvac engineering firms?

Sydney leads with 61 headquartered companies, followed by Melbourne (47) and Perth (26).

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 4,744 verified decision-maker contacts tracked across these 879 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 16, 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.