Company lists · Data refreshed September 2026
Top 25 Building energy retrofit consultants based in Australia
RevenueBase identified 136 building energy retrofit consultants headquartered in Australia as of September 2026 and tracks 608 professional contacts across them, including 189 with verified work emails. Sydney is the largest hub.
This list covers building energy retrofit consultants 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 27, 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.
The 25 largest building energy retrofit consultants based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 44 contacts → | ||||
Partial evidence “Established in 2006, Auspro Group is an accredited energy solutions provider, successfully installing energy upgrades to homes and businesses across Australia whilst protecting…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 31 contacts → | ||||
Strong evidence “Our focus is to provide and promote practical information‚ more efficient use of energy and renewable energy to residential‚ commercial and industrial building owners and tenants.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 26 contacts → | ||||
Indirect evidence “Glower upgrades your inefficient household and business products to new sustainable ones, saving your wallet and the world.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 18 contacts → | ||||
Indirect evidence “Ecosaver is an Australian owned and operated company established in 2017.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 17 contacts → | ||||
Strong evidence “Established in 2004, ecoMaster is a multi-award winning Australian business specialising in the thermal energy efficiency retrofit of existing homes.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 15 contacts → | ||||
Strong 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 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 12 contacts → | ||||
Strong evidence “UNDERSTANDING THE PROBLEM & IDENTIFYING REAL SOLUTIONS GWA Consultants is a specialist Mechanical Engineering and Energy Consultancy firm with over 25 years of experience in the…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 11 contacts → | ||||
Partial evidence “E-Green Electrical are the pioneers in energy efficiency.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 10 contacts → | ||||
Partial evidence “We help businesses increase operating margins and cut emissions through tailored energy solutions that deliver measurable results.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 9 contacts → | ||||
Indirect evidence “Ecologiq Group | Engineering.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 contacts → | ||||
Strong 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 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 contacts → | ||||
Partial evidence “Specialized Control Solutions Australia (SCSA) Group is your trusted building optimisation specialist.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 8 contacts → | ||||
Partial evidence “SmartConsult provide energy consulting for large, medium and small businesses looking to reduce their energy expenditures.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 contacts → | ||||
Indirect evidence “Consulting engineers and contract drafting services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Partial evidence “Australia ranks almost last among developed countries for Energy Efficiency, costing billions per year.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Strong evidence “Welcome to Sol Energy, a leading Australian sustainable energy consultancy and services company focused on developing a built environment that is sustainable for the future.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Strong evidence “An industry leader at the forefront of integrated, cost-effective building energy solutions, we work with you, and behind-the-scenes, to make buildings run smarter, more…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Partial evidence “Target Energy will help your business to take the first step toward Green Energy.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Partial evidence “At SeedHaus™ we provide both residential and commercial energy efficiency solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Partial evidence “The Energy Project is a specialist energy consulting firm providing clients with practical solutions to complex energy problems.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Partial evidence “We assist people in achieving their desired level of energy Independence.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Strong evidence “PIECHOWSKI ENERGY IS AN ENERGY EFFICIENCY AND SUTAINABLE BUILDINGS SOULTIONS COMPANY.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence “Sustainability Wise Pty Ltd is a SME offering consulting, program management, project management, and procurement advice in the following fields- Project Management for…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Partial evidence “The Expert Group is an independent consulting firm with extensive experience working with government and private enterprises, in the development of climate change, energy…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
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: building energy retrofit consultants. 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 building energy retrofit consultants.
- Partial evidence
- Its own public description names part of building energy retrofit consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name building energy retrofit consultants. 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 136 building energy retrofit consultants based in Australia
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Building energy retrofit consultants based in Australia at a glance
As of Sep 27, 2026Companies by employee count
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 136 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 building energy retrofit consultants, 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 “building energy retrofit consultants”. 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 building energy retrofit consultants), 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 building energy retrofit consultants, 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, 189 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 27, 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 building energy retrofit consultants, 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 building energy retrofit consultants are there based in Australia?
RevenueBase identified 136 building energy retrofit consultants 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?
Auspro Group, headquartered in Point Cook, tops this list with the largest team on record.
Which city has the most building energy retrofit consultants?
Sydney leads with 15 headquartered companies, followed by Melbourne (13) and Perth (7).
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 189 verified decision-maker contacts tracked across these 136 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 27, 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.
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