Company lists · Data refreshed September 2026

Top 25 Energy audit firms based in Australia

Name: Energy audit 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 73 companies tracked

RevenueBase identified 73 energy audit firms headquartered in Australia as of September 2026 and tracks 276 professional contacts across them, including 76 with verified work emails. Melbourne is the largest hub.

This list covers energy audit 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

73Companies

276Contacts tracked

76Verified emails

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The 25 largest energy audit firms based in Australia

Ranked by team size

Top 25 of 73 energy audit 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 energy audit 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	Ecosaver Australia	Indirect evidence	Derrimut, AustraliaHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence “Ecosaver is an Australian owned and operated company established in 2017.” Source: RevenueBase Database · checked Sep 16, 2026
2	Energy & Management Services	Partial evidence	Warners Bay, AustraliaHQ checked Sep 16, 2026	11-50	15 contacts →
	Partial evidence “EMS is an energy consultancy specialising in providing assistance to commercial and industrial clients, agribusinesses, mines, as well as small/medium enterprises in their…” Source: RevenueBase Database · checked Sep 16, 2026
3	E-Green Electrical	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “E-Green Electrical are the pioneers in energy efficiency.” Source: RevenueBase Database · checked Sep 16, 2026
4	Green Choice Consulting PTY LTD	Partial evidence	Perth, AustraliaHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial evidence “Green Choice Consulting provides expert Energy Efficiency Assessments and Design Advice for residential and commercial projects across Australia.” Source: RevenueBase Database · checked Sep 16, 2026
5	Optimise Energy Solutions	Partial evidence	North Sydney, AustraliaHQ checked Sep 16, 2026	1-10	8 contacts →
	Partial evidence “Optimise Energy Solutions (OES) offers a unique concept which unlocks significant operational savings by delivering turn-key energy efficiency solutions often with Zero Capital…” Source: RevenueBase Database · checked Sep 16, 2026
6	Anderson Energy Efficiency	Partial evidence	Mount Gravatt East, AustraliaHQ checked Sep 16, 2026	1-10	8 contacts →
	Partial evidence “Anderson Energy Efficiency (formerly Clyde Anderson Pty Ltd) is a Queensland-based Professional Energy Consultancy service, performing energy efficiency assessments for projects…” Source: RevenueBase Database · checked Sep 16, 2026
7	Solar Integrity	Partial evidence	Wodonga, AustraliaHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “We assist people in achieving their desired level of energy Independence.” Source: RevenueBase Database · checked Sep 16, 2026
8	Piechowski Energy PTY LTD	Partial evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “PIECHOWSKI ENERGY IS AN ENERGY EFFICIENCY AND SUTAINABLE BUILDINGS SOULTIONS COMPANY.” Source: RevenueBase Database · checked Sep 16, 2026
9	Ecoorigin	Partial evidence	Epping, AustraliaHQ checked Sep 16, 2026	11-50	4 contacts →
	Partial evidence “EcoOrigin is Australia's accredited energy efficiency company works under LED lighting, heating & cooling upgrades.” Source: RevenueBase Database · checked Sep 16, 2026
10	Evergreen Energy Consultants	Partial evidence	Wangi Wangi, AustraliaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “We are accredited energy assessors based in picturesque Wangi Wangi, Lake Macquarie.” Source: RevenueBase Database · checked Sep 16, 2026
11	Avance Energy Solutions Pty. LTD	Partial evidence	Minchinbury, AustraliaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Avance Energy Solutions provides proven technologies and solutions that will allow your facility to operate at optimal efficiency.” Source: RevenueBase Database · checked Sep 16, 2026
12	Wiseup Energy Solutions	Partial evidence	Ferny Hills, AustraliaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “We are more than energy brokers.” Source: RevenueBase Database · checked Sep 16, 2026
13	Gradwell Consulting	Partial evidence	Pymble, AustraliaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Gradwell Consulting specialises in energy rating and sustainability consulting throughout Australia.” Source: RevenueBase Database · checked Sep 16, 2026
14	EON Advisory	Partial evidence	Herston, AustraliaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “At EON Advisory, we don’t just cut your energy bills-we slash them like a guitar solo in a rock anthem!” Source: RevenueBase Database · checked Sep 16, 2026
15	Torple Energy Ratings	Partial evidence	Launceston, AustraliaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “torple creates practical and innovative solutions to Residential and Commercial Energy ratings for New buildings, renovations and planning requirements.” Source: RevenueBase Database · checked Sep 16, 2026
16	Electrical Energy Savers	Partial evidence	Narangba, AustraliaHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “Electrical Energy Savers helps households and businesses find and implement energy-saving solutions to reduce electricity costs and carbon emissions.” Source: RevenueBase Database · checked Sep 16, 2026
17	Powerhouse Raters	Indirect evidence	Albury, AustraliaHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “Empowering everyday Australians to make their home more sustainable.” Source: RevenueBase Database · checked Sep 16, 2026
18	Accelerate Sustainability Assessments	Partial evidence	Brisbane, AustraliaHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “Accelerate provides Energy Efficiency and Building Sustainability assessments throughout Australia.” Source: RevenueBase Database · checked Sep 16, 2026
19	MG Enlightening	Partial evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “Specializing in energy efficiency consulting across Australia, MGE excels in offering top-tier consulting and installation services.” Source: RevenueBase Database · checked Sep 16, 2026
20	Optimum Energy Solutions PTY LTD	Indirect evidence	Bondi Junction, AustraliaHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “With over 7 years' experience in the industry and a catalogue of market leading clients behind us, you can relax knowing we will safely and quickly manage the entire project from…” Source: RevenueBase Database · checked Sep 16, 2026
21	Sologistics Australia	Partial evidence	Glen Iris, AustraliaHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “We can help you in any number of ways, from a simple introductory chat to help you to understand the ins and outs of energy usage and savings.” Source: RevenueBase Database · checked Sep 16, 2026
22	Empire Thermal Group	Indirect evidence	Keilor, AustraliaHQ checked Sep 16, 2026	1-10	1 contacts →
	Indirect evidence “Welcome to Empire Thermal Group Empire Thermal Group was founded in 2009.” Source: RevenueBase Database · checked Sep 16, 2026
23	Electricity Brokers	Partial evidence	Melbourne, AustraliaHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “Welcome to Electricity Brokers, where savvy energy solutions meet unparalleled expertise!” Source: RevenueBase Database · checked Sep 16, 2026
24	Negawatt Energy Solutions PTY LTD	Partial evidence	Gold Coast, AustraliaHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “Negawatt Energy Solutions is a leading provider of comprehensive energy management and efficiency solutions, dedicated to helping businesses reduce energy costs and improve…” Source: RevenueBase Database · checked Sep 16, 2026
25	House Energy Certified	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	1 contacts →
	Partial evidence “House Energy Certified is a leading provider of energy efficiency compliance solutions.” 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: energy audit 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 energy audit firms.
Partial evidence: Its own public description names part of energy audit firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy audit 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 73 energy audit firms based in Australia

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Energy audit firms based in Australia at a glance

As of Sep 16, 2026

27.5%Verified-email coverage

3.8Average contacts per company

1-10Median size (employees)

8.2%Largest-city concentration · Melbourne

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 73 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 energy audit 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 “energy audit 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 energy audit 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 energy audit 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, 76 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.

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 energy audit 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 energy audit firms are there based in Australia?

RevenueBase identified 73 energy audit 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?

Ecosaver Australia, headquartered in Derrimut, tops this list with the largest team on record.

Which city has the most energy audit firms?

Melbourne leads with 6 headquartered companies, followed by Brisbane (4) and Sydney (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 76 verified decision-maker contacts tracked across these 73 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.