Company lists · Data verified August 2026

Top 25 Energy efficiency consulting firms based in Australia

Name: Energy efficiency consulting firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 319 companies tracked

There are 319 energy efficiency consulting firms headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 1,893 professional contacts across them, including 645 with verified work emails and 118 with mobile numbers. Sydney is the largest hub.

This list covers energy efficiency consulting firms headquartered in Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

319Companies

1,893Contacts tracked

645Verified emails

118Mobile numbers

Unlock all 319 companies Free account · no credit card · 2 minutes

The 25 largest energy efficiency consulting firms based in Australia

Ranked by team size

Top 25 of 319 energy efficiency consulting firms based in Australia, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Alerton Australia	Fyshwick	201-500	148	70
2	ZEMBL	Sydney	51-200	129	85
3	Auspro Group	Point Cook	11-50	43	17
4	Termina	Melbourne	11-50	40	20
5	Aussie Greenmarks	Ravenhall	11-50	37	5
6	Kuga Energy	Keysborough	51-200	33	4
7	Easy Being Green PTY LTD	North Sydney	11-50	27	5
8	Energy Intelligence	Hawthorn East	11-50	26	23
9	Glower	Melbourne	11-50	24	1
10	Trans Tasman Energy Group	Fitzroy	51-200	21	17
11	Ecosaver Australia	Derrimut	11-50	18	9
12	Nrg7	Nerang	11-50	18	4
13	Energylink Services PTY LTD	Sydney	11-50	17	11
14	Myom Australia	South Melbourne	11-50	17	4
15	Energy & Management Services	Brisbane	11-50	15	6
16	Esena Energy	Homebush West	11-50	14	6
17	Planet ARK Power	Enoggera	51-200	13	8
18	Elwa Energysavers	North Plympton	11-50	13	8
19	GWA Consultants Australia PTY LTD	Sydney	11-50	12	11
20	E-Green Electrical	Sydney	11-50	11	1
21	Kiltech INC	n/a	11-50	10	4
22	Tecled	Sydney	11-50	9	3
23	AR Energy	Perth	11-50	8	5
24	Systemax	Capalaba	11-50	8	3
25	Reclaim Solar Energy	Edgeworth	11-50	7	5

Showing 25 of 319 energy efficiency consulting firms based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 645 reachable decision-makers.

Free account · no credit card

See all 319 companies

Energy efficiency consulting firms based in Australia at a glance

As of Aug 28, 2026

1-10Median size (employees)

SydneyLargest hub · 42 HQs

118Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

218

11-50

51-200

201-500

Energy efficiency consulting firms by metro

Metro	Companies
Energy efficiency consulting firms in Sydney	42
Energy efficiency consulting firms in Melbourne	29
Energy efficiency consulting firms in Adelaide	16
Energy efficiency consulting firms in Brisbane	16
Energy efficiency consulting firms in Perth	15
Energy efficiency consulting firms in North Sydney	5
Energy efficiency consulting firms in Canberra	5

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “energy efficiency consulting firms”, with match quality audited by blind human judging, and headquartered in Australia.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many energy efficiency consulting firms are there based in Australia?

There are 319 energy efficiency consulting firms headquartered in Australia as of August 2026 (RevenueBase).

What is the largest company on this list?

Alerton Australia, headquartered in Fyshwick, tops this list with the largest team on record.

Which city has the most energy efficiency consulting firms?

Sydney leads with 42 headquartered companies, followed by Melbourne (29) and Adelaide (16).

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 645 verified decision-maker contacts tracked across these 319 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 319 energy efficiency consulting firms based in Australia. Start with a free account, no credit card.

Get the full list

Related lists

Energy efficiency consulting firms by geography

Browse the directory

Browse: Companies home · All Australia lists · All Energy efficiency consulting firms lists · New lists

About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.