Company lists · Data refreshed September 2026

Top 25 Energy engineering consulting companies based in Sydney, Australia

Name: Energy engineering consulting companies based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 89 companies tracked

RevenueBase identified 89 energy engineering consulting companies headquartered in Sydney, Australia as of September 2026 and tracks 35,219 professional contacts across them, including 12,494 with verified work emails. Melbourne is the largest hub.

This list covers energy engineering consulting companies headquartered in Sydney, 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

89Companies

35,219Contacts tracked

12,494Verified emails

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The 25 largest energy engineering consulting companies based in Sydney, Australia

Ranked by team size

Top 25 of 89 energy engineering consulting companies based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy engineering consulting companies: 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	Worley	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	10001+	34,763 contacts →
	Partial evidence “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Source: RevenueBase Database · checked Sep 16, 2026
2	Wsce Warren Smith Consulting Engineers	Strong evidence	Sydney, AustraliaHQ checked Sep 16, 2026	51-200	40 contacts →
	Strong evidence “WSce is a multi-discipline Australian-owned consulting engineering firm specialising in civil, water, hydraulic, fire services (wet & dry fire) and specialty water and wasterwater…” Source: RevenueBase Database · checked Sep 16, 2026
3	Cnfitech	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	38 contacts →
	Indirect evidence “Welcome to CNF & Associates.” Source: RevenueBase Database · checked Sep 16, 2026
4	Acom Group	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	201-500	32 contacts →
	Partial evidence “ACOM Group Specialises in the design, construction & commissioning of M&E projects across a variety of sectors including renewables, transport, defence, energy, oil & gas.” Source: RevenueBase Database · checked Sep 16, 2026
5	Leading Edge Energy	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	21 contacts →
	Partial evidence “What we do Leading Edge Energy is an integrated energy management consultancy powered by the latest technology to offer market-leading energy solutions for your business.” Source: RevenueBase Database · checked Sep 16, 2026
6	Cutlermerz	Strong evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	19 contacts →
	Strong evidence “We are a specialist management, economic and engineering consultancy to the power and energy sector.” Source: RevenueBase Database · checked Sep 16, 2026
7	Energylink Services PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “EnergyLink Services is a multi-disciplinary, specialist, energy and carbon consultancy and project developer.” Source: RevenueBase Database · checked Sep 16, 2026
8	Renewco Solar	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	16 contacts →
	Indirect evidence “At RenewCo Solar we pride ourselves on the work we do.” Source: RevenueBase Database · checked Sep 16, 2026
9	Centric Building Services Engineers	Strong evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	14 contacts →
	Strong evidence “Centric Building Services Engineers Centric Building Services Engineers are a team of highly experienced consulting engineering experts in building services.” Source: RevenueBase Database · checked Sep 16, 2026
10	Fichtner Australia	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	13 contacts →
	Partial evidence “The Fichtner Group is one of the leading independent engineering consultancy firms in the world.” Source: RevenueBase Database · checked Sep 16, 2026
11	GWA Consultants Australia PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	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 16, 2026
12	Pt&i	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “We are a professional engineering consultancy offering multi-sector expertise to define what is possible and practical to optimise the benefits of systems or technology deployment.” Source: RevenueBase Database · checked Sep 16, 2026
13	N2 Engineering Consultants	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	10 contacts →
	Partial evidence “n2 Engineering Consultants provides innovative, reliable, and Australian-designed engineering solutions.” Source: RevenueBase Database · checked Sep 16, 2026
14	Powerhertz PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	6 contacts →
	Partial evidence “Powerhertz provides specialist engineering services to the power generation and distribution industry.” Source: RevenueBase Database · checked Sep 16, 2026
15	Flexigen PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	5 contacts →
	Strong evidence “Flexigen delivers innovative engineering solutions across industrial and manufacturing sectors, specialising in energy efficiency, renewable energy, and process optimisation.” Source: RevenueBase Database · checked Sep 16, 2026
16	TRACA	Strong evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	5 contacts →
	Strong evidence “We are an Australian consulting engineering consulting and design firm that has gained an extensive range of experience in large infrastructure & building services, electricity…” Source: RevenueBase Database · checked Sep 16, 2026
17	Adea Power Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	51-200	5 contacts →
	Partial evidence “ADEA Power Consulting Pty.” Source: RevenueBase Database · checked Sep 16, 2026
18	70 Ways	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “70 Ways is at the forefront of ushering businesses into a sustainable future, recognizing the complex challenges posed by the evolving landscape of energy, environment, and safety.” Source: RevenueBase Database · checked Sep 16, 2026
19	Infrafuture	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “We are a specialist in the energy and water sectors across major projects and business operations.” Source: RevenueBase Database · checked Sep 16, 2026
20	Team Catalyst	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial evidence “We help buildings reduce greenhouse emissions by improving energy efficiency and occupant comfort!” Source: RevenueBase Database · checked Sep 16, 2026
21	Kean Energy PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	4 contacts →
	Partial evidence “Kean Energy is a consultancy based in Australia with presence in Philippines and the Fiji Islands.” Source: RevenueBase Database · checked Sep 16, 2026
22	Nulux Energy Solutions	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	3 contacts →
	Partial evidence “Nulux Energy Solutions is the leading energy specialist in Australia.” Source: RevenueBase Database · checked Sep 16, 2026
23	Spark Professional Services Spark	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	3 contacts →
	Partial evidence “Spark Professional Services is your trusted leader in High and Low-voltage Electrical Engineering Design and Testing & Commissioning.” Source: RevenueBase Database · checked Sep 16, 2026
24	LP Consulting Australia PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	MIH Sunshine Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	2 contacts →
	Partial evidence “MIH (Make It Happen) Sunshine Consulting helps SME to Large Corporates navigate the challenges of growth and scalability.” 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 engineering consulting companies. 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 engineering consulting companies.
Partial evidence: Its own public description names part of energy engineering consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy engineering consulting companies. 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 89 energy engineering consulting companies based in Sydney, Australia

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Energy engineering consulting companies based in Sydney, Australia at a glance

As of Sep 16, 2026

35.5%Verified-email coverage

395.7Average contacts per company

1-10Median size (employees)

106.7%Largest-city concentration · Melbourne

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

10001+

Email recency for this list is measured across the whole Australia list rather than for Sydney, so it is reported there. Company counts and contact totals on this page are exact for Sydney, over 89 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 engineering consulting companies, 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 Sydney, Australia whose own description of what they do matches “energy engineering consulting companies”. 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 engineering consulting companies), 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 engineering consulting companies, and records with no verified work email. Companies headquartered outside Sydney 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, 12,494 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.

Energy engineering consulting companies by metro in Australia

Energy engineering consulting companies in Melbourne95
Energy engineering consulting companies in Sydney89
Energy engineering consulting companies in Perth82
Energy engineering consulting companies in Brisbane76
Energy engineering consulting companies in Adelaide31

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 engineering consulting companies, 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 engineering consulting companies are there based in Sydney, Australia?

RevenueBase identified 89 energy engineering consulting companies headquartered in Sydney, 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?

Worley, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most energy engineering consulting companies?

Melbourne leads with 95 headquartered companies, followed by Sydney (89) and Perth (82).

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 12,494 verified decision-maker contacts tracked across these 89 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.