Company lists · Data refreshed September 2026

Top 25 Global consulting firms based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 2,206 companies tracked

RevenueBase identified 2,206 global consulting firms headquartered in Australia as of September 2026 and tracks 33,249 professional contacts across them, including 14,669 with verified work emails and 4,043 with mobile numbers. Sydney is the largest hub.

This list covers global consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

2,206Companies

33,249Contacts tracked

14,669Verified emails

4,043Mobile numbers

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The 25 largest global consulting firms based in Australia

Ranked by team size

Top 25 of 2,206 global consulting firms based in Australia, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names global consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	NihilentStrong evidence	South Melbourne, Australia	1,001-5,000	1,722
	“Nihilent is a Global Consulting and Services Company using a human-centred approach for problem-solving and change management, Nihilent’s comprehensive range of expertise in…” Source: company website · checked Sep 3, 2026
2	Nous GroupIndirect evidence	Brisbane, Australia	501-1,000	697
	“Nous Group is an international management consultancy working with clients across Australasia, the United Kingdom and North America.” Source: company website · checked Sep 3, 2026
3	Partners In Performance, Part Of AccenturePartial evidence	Brisbane, Australia	501-1,000	484
	“Partners in Performance, part of Accenture, is an agile, fast growing international management consultancy; a leading global player in driving operational excellence for complex…” Source: company website · checked Sep 3, 2026
4	Synergy GroupIndirect evidence	Barton, Australia	201-500	421
	“Challengers at heart, we are pragmatic explorers seeking to uncover what could be, so it can be.” Source: company website · checked Sep 3, 2026
5	Delivery AssociatesIndirect evidence	Sydney, Australia	51-200	356
	“We make change happen.” Source: company website · checked Sep 3, 2026
6	BluerockIndirect evidence	Melbourne, Australia	201-500	316
	“BlueRock is for entrepreneurs, by entrepreneurs.” Source: company website · checked Sep 3, 2026
7	DavidsonIndirect evidence	Symonston, Australia	501-1,000	300
	“As a proudly Australian company, over 30 years Davidson has evolved into a leader in enhancing workplace performance.” Source: company website · checked Sep 3, 2026
8	FinityIndirect evidence	Melbourne, Australia	201-500	253
	“We are a trusted partner of tech start-ups through to large scale organisations.” Source: company website · checked Sep 3, 2026
9	Lochan & COStrong evidence	Melbourne, Australia	51-200	218
	“Lochan & Co is a firm providing consulting, assurance, and professional services in more than 80 countries across the globe.” Source: company website · checked Sep 3, 2026
10	PMY GroupPartial evidence	Melbourne, Australia	201-500	197
	“At PMY Group, we are proud of our Australian origins and ever-increasing global footprint.” Source: company website · checked Sep 3, 2026
11	Protiviti AustraliaStrong evidence	Sydney, Australia	5,001-10,000	172
	“Protiviti is a global business consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently…” Source: company website · checked Sep 3, 2026
12	Programmed ProfessionalsIndirect evidence	Sydney, Australia	51-200	172
	“At Programmed Professionals, we are committed to delivering outstanding results for you.” Source: company website · checked Sep 3, 2026
13	Fiftyfive5, Part Of Accenture SongIndirect evidence	Sydney, Australia	201-500	170
	“Fiftyfive5 We are hiring!” Source: company website · checked Sep 3, 2026
14	CallidaPartial evidence	Forrest, Australia	51-200	124
	“Callida Consulting are a Canberra-based consulting firm, dedicated to our people and the provision of professional services across a range of service offerings.” Source: company website · checked Sep 3, 2026
15	SystemsgoIndirect evidence	Sydney, Australia	51-200	112
	“Who We Are systemsGo was started in 1998 because we believed there was a better way to address the special IT needs of Tokyo businesses, and starting in 2008 we began our…” Source: company website · checked Sep 3, 2026
16	BendeltaIndirect evidence	Brisbane City, Australia	51-200	111
	“Bendelta is Australia’s most awarded leadership and organisational design management consultancy - transforming individuals, teams and organisations to unlock human potential and…” Source: company website · checked Sep 3, 2026
17	Projects AssuredPartial evidence	Braddon, Australia	51-200	111
	“As a specialist management consulting firm, we pride ourselves on being your trusted strategic advisors and proven delivery partners, and we are renowned for solving our public…” Source: company website · checked Sep 3, 2026
18	SenseiIndirect evidence	Brisbane City, Australia	51-200	95
	“At Sensei we partner with you to help improve the way you work.” Source: company website · checked Sep 3, 2026
19	Xenco ServicesIndirect evidence	Brisbane City, Australia	51-200	83
	“Founded in 2018, Xenco is a multi-disciplined, specialist service group that delivers executive and operational level support to businesses seeking significant improvements in…” Source: company website · checked Sep 3, 2026
20	Visagio AustraliaPartial evidence	Sydney, Australia	51-200	83
	“Founded in 2003, Visagio is a global platform that helps organisations achieve their goals.” Source: company website · checked Sep 3, 2026
21	ParberyIndirect evidence	Fyshwick, Australia	51-200	76
	“Parbery is a values-driven professional advisory firm and an Australian-owned SME, with a presence in ACT, QLD, SA and VIC.” Source: company website · checked Sep 3, 2026
22	ProximityPartial evidence	Canberra, Australia	51-200	75
	“We bring together brilliant minds in consulting, legal and commercial to work in collaboration with our clients.” Source: company website · checked Sep 3, 2026
23	CollabgenicsPartial evidence	Arana Hills, Australia	501-1,000	71
	“Collabgenics Consulting is a leading professional services company, providing a broad range of services and solutions in strategy, consulting, digital, technology and operations.” Source: company website · checked Sep 3, 2026
24	PPB AdvisoryIndirect evidence	Perth, Australia	201-500	70
	“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: company website · checked Sep 3, 2026
25	CORASIndirect evidence	Braddon, Australia	51-200	68
	“We’re Coras.” Source: company website · checked Sep 3, 2026

Showing 25 of 2,206 global consulting firms based in Australia

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Global consulting firms based in Australia at a glance

As of Sep 3, 2026

1-10Median size (employees)

SydneyLargest hub · 491 HQs

4,043Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

1,727

11-50

374

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 global consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Australia whose own description of what they do matches “global consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among global consulting firms, 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 an evidence 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, 14,669 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 3, 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.

Global consulting firms by metro

Global consulting firms in Sydney491
Global consulting firms in Melbourne420
Global consulting firms in Brisbane218
Global consulting firms in Perth141
Global consulting firms in Adelaide84
Global consulting firms in Canberra60
Global consulting firms in Brisbane City29

Frequently asked

How many global consulting firms are there based in Australia?

RevenueBase identified 2,206 global consulting firms 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?

Nihilent, headquartered in South Melbourne, tops this list with the largest team on record.

Which city has the most global consulting firms?

Sydney leads with 491 headquartered companies, followed by Melbourne (420) and Brisbane (218).

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 14,669 verified decision-maker contacts tracked across these 2,206 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 3, 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 SmartSearch, 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.