Company lists · Data refreshed September 2026

Top 24 Consultancy services based in Sydney, Australia

Name: Consultancy services based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 1,999 companies tracked

RevenueBase identified 1,999 consultancy services headquartered in Sydney, Australia as of September 2026 and tracks 14,915 professional contacts across them, including 3,827 with verified work emails. Sydney is the largest hub.

This list covers consultancy services 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 24, 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 24, 2026 86% judged on-target in blind review

1,999Companies

14,915Contacts tracked

3,827Verified emails

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The 24 largest consultancy services based in Sydney, Australia

Ranked by team size

Top 24 of 1,999 consultancy services based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to consultancy services: 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	Logistics Executive Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	n/a	647 contacts →
	Indirect evidence “Welcome to Logistics Executive Group - The hub of your global supply chain.” Source: RevenueBase Database · checked Sep 24, 2026
2	Acor Consultants	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	501-1,000	423 contacts →
	Strong evidence “Founded in 1997, ACOR Consultants began as a group of engineers with a unique set of personal and professional values providing specialist consulting services.” Source: RevenueBase Database · checked Sep 24, 2026
3	Jbs&g	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	201-500	262 contacts →
	Strong evidence “Established in 1996, JBS & G is one of Australia’s leading environmental consultancies with offices in Sydney, Melbourne, Perth, Adelaide, Brisbane, Canberra, Darwin, Wollongong…” Source: RevenueBase Database · checked Sep 24, 2026
4	Infosys Portland	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	201-500	190 contacts →
	Indirect evidence “At Infosys Portland, we’re on a mission to lead our clients' procurement and supply chain functions into the future, while delivering value today.” Source: RevenueBase Database · checked Sep 24, 2026
5	Fiftyfive5, Part Of Accenture Song	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	201-500	169 contacts →
	Indirect evidence “Fiftyfive5 We are hiring!” Source: RevenueBase Database · checked Sep 24, 2026
6	SJA	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	145 contacts →
	Strong evidence “SJA Construction Services is a specialist consultancy firm providing independent expert, advisory and technical services to the construction and infrastructure industry across…” Source: RevenueBase Database · checked Sep 24, 2026
7	Seven Consulting	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	117 contacts →
	Strong evidence “We are a team of delivery professionals providing Project, Program, and Change management consultancy services.” Source: RevenueBase Database · checked Sep 24, 2026
8	TL Consulting Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	108 contacts →
	Indirect evidence “At TL Consulting, we simplify modern complexity with advanced, sustainable engineering.” Source: RevenueBase Database · checked Sep 24, 2026
9	Ey-Parthenon Strategy	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	84 contacts →
	Indirect evidence “EY-Parthenon Strategy, formerly EY Port Jackson Partners, is a leading Australian strategy consulting practice trusted by CEOs, Boards and senior leaders to advise on the most…” Source: RevenueBase Database · checked Sep 24, 2026
10	Verimark PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	n/a	82 contacts →
	Strong evidence “Verimark is a company that offers a comprehensive service in Commercial Property Consultancy / Retail Tenant Representation.” Source: RevenueBase Database · checked Sep 24, 2026
11	Bastion Defence	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	75 contacts →
	Indirect evidence “Bastion Defence Consulting is a premier maritime professional services consulting firm providing a broad range of services across Australia to a number of clients in the Defence…” Source: RevenueBase Database · checked Sep 24, 2026
12	PPB Advisory	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	201-500	70 contacts →
	Indirect evidence “PPB Advisory is a leading advisory firm that is focused on helping organisations navigate critical and complex issues, improve their performance and realise their strategic goals.” Source: RevenueBase Database · checked Sep 24, 2026
13	Metropolis Agency	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	68 contacts →
	Strong evidence “We are a marketing consultancy for the property industry.” Source: RevenueBase Database · checked Sep 24, 2026
14	ICG Internal Consulting Group Global	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	1,001-5,000	63 contacts →
	Strong evidence “ICG is a 21st century consulting and project services platform that delivers any permutation of professional consultants, intellectual property, methodology, training and services…” Source: RevenueBase Database · checked Sep 24, 2026
15	Triaxial Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	57 contacts →
	Indirect evidence “Established in 2012, Triaxial Consulting are a firm of Consulting Civil and Structural Engineers, who provide a suite of specialist consulting engineering services, to all…” Source: RevenueBase Database · checked Sep 24, 2026
16	EDT Global	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	11-50	55 contacts →
	Strong evidence “EDT Global is an established recruitment consultancy, that has delivered high-quality, niche market recruitment services since 2004.” Source: RevenueBase Database · checked Sep 24, 2026
17	Gyde Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	11-50	53 contacts →
	Indirect evidence “Why ‘GYDE’?” Source: RevenueBase Database · checked Sep 24, 2026
18	ARCH	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	53 contacts →
	Strong evidence “Founded in 2014 by John Armstrong, ARCH Artifex (ARCH) is a specialist consultancy dedicated to delivering measurable, outcome-focused solutions in Systems Engineering & Safety…” Source: RevenueBase Database · checked Sep 24, 2026
19	The Growth HUB Global	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	11-50	53 contacts →
	Indirect evidence “Ready to take your property business to new heights?” Source: RevenueBase Database · checked Sep 24, 2026
20	SCP Consulting PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	52 contacts →
	Strong evidence “SCP Consulting is a national engineering consultancy with over 40 years of experience delivering innovative, practical design and management solutions across Australia.” Source: RevenueBase Database · checked Sep 24, 2026
21	ESI Global Education And Migration Services	Strong evidence	Sydney, AustraliaHQ checked Sep 24, 2026	51-200	46 contacts →
	Strong evidence “ESI Global is a leading Sydney-based education and migration consultancy with its inception in 2006, now operating globally across 5 branches(Sydney, Melbourne, Pakistan, Dhaka &…” Source: RevenueBase Database · checked Sep 24, 2026
22	Customer Science	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	11-50	44 contacts →
	Indirect evidence “Customer Science is an Australian Customer Experience (CX), Contact Centre, Service and Digital Transformation Company.” Source: RevenueBase Database · checked Sep 24, 2026
23	Witt Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	11-50	43 contacts →
	Indirect evidence “Specialist engineers consulting in the fields of temporary works, structural, geotechnical and heritage reuse.” Source: RevenueBase Database · checked Sep 24, 2026
24	Vision Infrastructure	Indirect evidence	Sydney, AustraliaHQ checked Sep 24, 2026	11-50	43 contacts →
	Indirect 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 24, 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: consultancy services. 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 consultancy services.
Partial evidence: Its own public description names part of consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name consultancy services. 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 24 of 1,999 consultancy services based in Sydney, Australia

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Consultancy services based in Sydney, Australia at a glance

As of Sep 24, 2026

25.7%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

1,602

11-50

317

51-200

201-500

501-1,000

1,001-5,000

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 1,999 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 consultancy services, 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 “consultancy services”. 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 consultancy services), 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 consultancy services, 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, 3,827 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 24, 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.

Consultancy services by metro in Australia

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 consultancy services, 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 consultancy services are there based in Sydney, Australia?

RevenueBase identified 1,999 consultancy services 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?

Logistics Executive Group, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most consultancy services?

Sydney leads with 1999 headquartered companies, followed by Melbourne (1676) and Brisbane (903).

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 3,827 verified decision-maker contacts tracked across these 1,999 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 24, 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.