Company lists · Data refreshed September 2026

Top 25 Energy infrastructure consulting firms based in Sydney, Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 135 companies tracked

RevenueBase identified 135 energy infrastructure consulting firms headquartered in Sydney, Australia as of September 2026 and tracks 36,561 professional contacts across them, including 13,067 with verified work emails. Melbourne is the largest hub.

This list covers energy infrastructure consulting firms 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 21, 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 21, 2026 86% judged on-target in blind review

135Companies

36,561Contacts tracked

13,067Verified emails

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The 25 largest energy infrastructure consulting firms based in Sydney, Australia

Ranked by team size

Top 25 of 135 energy infrastructure consulting firms based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure consulting 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	Worley	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
2	Connellgriffin	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	184 contacts →
	Partial evidence “ConnellGriffin is a commercial advisory firm operating within the infrastructure industry.” Source: RevenueBase Database · checked Sep 21, 2026
3	E3 Advisory	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	103 contacts →
	Partial evidence “E3 Advisory, now part of WSP, is a leading infrastructure advisory firm delivering independent, strategic advice across Australia’s infrastructure landscape.” Source: RevenueBase Database · checked Sep 21, 2026
4	ICA Partners	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	48 contacts →
	Indirect evidence “ICA Partners is one of Australia’s leading boutique advisory firms.” Source: RevenueBase Database · checked Sep 21, 2026
5	Qubist PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	45 contacts →
	Partial evidence “Qubist is an advisory business that provides expertise to clients with utility and infrastructure assets.” Source: RevenueBase Database · checked Sep 21, 2026
6	Vision Infrastructure	Strong evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	43 contacts →
	Strong evidence “Vision incorporates: Vision Commercial - a commercial services business specialising in infrastructure, energy and major projects; and Vision Legal – a law firm with a dedicated…” Source: RevenueBase Database · checked Sep 21, 2026
7	Acom Group	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
8	EPS Group Australia	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	31 contacts →
	Partial evidence “Electrical & Pumping Services Australia is now part of the EnerMech group of companies.” Source: RevenueBase Database · checked Sep 21, 2026
9	Lacima Group	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	30 contacts →
	Partial evidence “Empowering confident decision making for energy and commodity market participants through superior innovative analytics.” Source: RevenueBase Database · checked Sep 21, 2026
10	Elecnor Australia	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	28 contacts →
	Partial evidence “Elecnor Australia is a major player in the energy market in Australia, offering power generation and transmission services through large-scale projects such as solar farms, wind…” Source: RevenueBase Database · checked Sep 21, 2026
11	Alexandra Venice Consulting AVC	Strong evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	26 contacts →
	Strong evidence “Alexandra Venice Consulting (AVC) offer independent technical, environmental and project management services to support the development, procurement and delivery of infrastructure…” Source: RevenueBase Database · checked Sep 21, 2026
12	Intelligent Energy Systems IES	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	23 contacts →
	Partial evidence “Trusted advisors and technology leaders in energy markets in the Asia-Pacific region with over four decades of experience helping shape energy transition and opportunities for…” Source: RevenueBase Database · checked Sep 21, 2026
13	Leading Edge Energy	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
14	Indus Engineering PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	21 contacts →
	Partial evidence “Indus Engineering is a specialist team of experienced engineering professionals providing project management and advisory services to all infrastructure developments.” Source: RevenueBase Database · checked Sep 21, 2026
15	Cutlermerz	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “We are a specialist management, economic and engineering consultancy to the power and energy sector.” Source: RevenueBase Database · checked Sep 21, 2026
16	Energylink Services PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
17	Bellgrove Advisory	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	16 contacts →
	Partial evidence “Bellgrove Advisory was established in 2013 as an independent infrastructure advisory consultancy with the aim of helping to build sustainable infrastructure that supports our…” Source: RevenueBase Database · checked Sep 21, 2026
18	CROI	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “At Croí (pronounced kree), we are an award-winning team delivering utility project management and design (ASP3 certified) with a commitment to innovation, efficiency, and…” Source: RevenueBase Database · checked Sep 21, 2026
19	Energy Global Company	Strong evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	15 contacts →
	Strong evidence “Established in March 2017, Energy Global Company Pty Ltd (EGC) has been building and providing consulting services to retail energy businesses across the globe.” Source: RevenueBase Database · checked Sep 21, 2026
20	Fichtner Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “The Fichtner Group is one of the leading independent engineering consultancy firms in the world.” Source: RevenueBase Database · checked Sep 21, 2026
21	GWA Consultants Australia PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	12 contacts →
	Partial 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 21, 2026
22	Performance Electrics PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	12 contacts →
	Indirect evidence “A highly skilled team of specialist electrical engineers, we design, develop and deliver industry-leading power system solutions across a range of sectors and industries.” Source: RevenueBase Database · checked Sep 21, 2026
23	Scott Electrical Services	Strong evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	12 contacts →
	Strong evidence “Scott Electrical Services Pty Ltd is a Sydney based company that has been trading since 2004 and specialises in energy and electrical infrastructure projects around NSW and…” Source: RevenueBase Database · checked Sep 21, 2026
24	Hypercube Scientific	Strong evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	11 contacts →
	Strong evidence “Hypercube Scientific is a specialised consultancy providing advanced analytical and simulation services for the resources, energy, agriculture and infrastructure sectors.” Source: RevenueBase Database · checked Sep 21, 2026
25	Avista Strategy	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “We are a strategic consultancy for the infrastructure industry, born out of the sense that there was a better way.” Source: RevenueBase Database · checked Sep 21, 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 infrastructure consulting 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 infrastructure consulting firms.
Partial evidence: Its own public description names part of energy infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure consulting 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 135 energy infrastructure consulting firms based in Sydney, Australia

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Energy infrastructure consulting firms based in Sydney, Australia at a glance

As of Sep 21, 2026

35.7%Verified-email coverage

270.8Average contacts per company

1-10Median size (employees)

100.7%Largest-city concentration · Melbourne

Sep 21, 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 135 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 infrastructure consulting 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 Sydney, Australia whose own description of what they do matches “energy infrastructure consulting 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 infrastructure consulting 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 infrastructure consulting firms, 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, 13,067 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 21, 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 infrastructure consulting firms by metro in Australia

Energy infrastructure consulting firms in Melbourne136
Energy infrastructure consulting firms in Sydney135
Energy infrastructure consulting firms in Perth122
Energy infrastructure consulting firms in Brisbane100
Energy infrastructure consulting firms in Adelaide47

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 infrastructure consulting 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 infrastructure consulting firms are there based in Sydney, Australia?

RevenueBase identified 135 energy infrastructure consulting firms 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 infrastructure consulting firms?

Melbourne leads with 136 headquartered companies, followed by Sydney (135) and Perth (122).

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 13,067 verified decision-maker contacts tracked across these 135 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 21, 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.