Company lists · Data refreshed August 2026

Top 25 Business consulting firms based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 4,239 companies tracked

RevenueBase identified 4,239 business consulting firms headquartered in Australia as of August 2026 and tracks 40,513 professional contacts across them, including 17,645 with verified work emails and 4,939 with mobile numbers. Sydney is the largest hub.

This list covers business 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

4,239Companies

40,513Contacts tracked

17,645Verified emails

4,939Mobile numbers

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The 25 largest business consulting firms based in Australia

Ranked by team size

Top 25 of 4,239 business consulting firms based in Australia, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to business 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	Nihilent	Strong evidence	South Melbourne, Australia	1,001-5,000	1,722 contacts →
	Strong evidence “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: RevenueBase Database · checked Aug 31, 2026
2	Nous Group	Indirect evidence	Brisbane, Australia	501-1,000	697 contacts →
	Indirect evidence “Nous Group is an international management consultancy working with clients across Australasia, the United Kingdom and North America.” Source: RevenueBase Database · checked Aug 31, 2026
3	Kordamentha	Indirect evidence	Townsville, Australia	501-1,000	601 contacts →
	Indirect evidence “KordaMentha is a proudly independent, founder owned and led advisory firm with a reputation for getting the job done.” Source: RevenueBase Database · checked Aug 31, 2026
4	Mcgrathnicol	Indirect evidence	Sydney, Australia	201-500	509 contacts →
	Indirect evidence “For more than 20 years, we have helped businesses and their stakeholders navigate critical moments, from growth and transformation through to financial stress and uncertainty.” Source: RevenueBase Database · checked Aug 31, 2026
5	Partners In Performance, Part Of Accenture	Indirect evidence	Brisbane, Australia	501-1,000	484 contacts →
	Indirect evidence “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: RevenueBase Database · checked Aug 31, 2026
6	Synergy Group	Indirect evidence	Barton, Australia	201-500	421 contacts →
	Indirect evidence “Challengers at heart, we are pragmatic explorers seeking to uncover what could be, so it can be.” Source: RevenueBase Database · checked Aug 31, 2026
7	Clearsulting	Indirect evidence	Sydney, Australia	201-500	364 contacts →
	Indirect evidence “Clearsulting’s innovative problem solving and proven technology workflows help finance leaders embrace digital to become better business partners.” Source: RevenueBase Database · checked Aug 31, 2026
8	Delivery Associates	Indirect evidence	Sydney, Australia	51-200	356 contacts →
	Indirect evidence “We make change happen.” Source: RevenueBase Database · checked Aug 31, 2026
9	Bluerock	Indirect evidence	Melbourne, Australia	201-500	316 contacts →
	Indirect evidence “BlueRock is for entrepreneurs, by entrepreneurs.” Source: RevenueBase Database · checked Aug 31, 2026
10	Davidson	Indirect evidence	Symonston, Australia	501-1,000	300 contacts →
	Indirect evidence “As a proudly Australian company, over 30 years Davidson has evolved into a leader in enhancing workplace performance.” Source: RevenueBase Database · checked Aug 31, 2026
11	Finity	Indirect evidence	Melbourne, Australia	201-500	253 contacts →
	Indirect evidence “We are a trusted partner of tech start-ups through to large scale organisations.” Source: RevenueBase Database · checked Aug 31, 2026
12	Terra Firma Business Consulting	Indirect evidence	Melbourne, Australia	201-500	232 contacts →
	Indirect evidence “At Terra Firma, we understand that success is all about sustaining long-term relationships.” Source: RevenueBase Database · checked Aug 31, 2026
13	PMY Group	Indirect evidence	Melbourne, Australia	201-500	197 contacts →
	Indirect evidence “At PMY Group, we are proud of our Australian origins and ever-increasing global footprint.” Source: RevenueBase Database · checked Aug 31, 2026
14	Protiviti Australia	Strong evidence	Sydney, Australia	5,001-10,000	172 contacts →
	Strong evidence “Protiviti is a global business consulting firm that delivers deep expertise, objective insights, a tailored approach and unparalleled collaboration to help leaders confidently…” Source: RevenueBase Database · checked Aug 31, 2026
15	Programmed Professionals	Indirect evidence	Sydney, Australia	51-200	172 contacts →
	Indirect evidence “At Programmed Professionals, we are committed to delivering outstanding results for you.” Source: RevenueBase Database · checked Aug 31, 2026
16	Fiftyfive5, Part Of Accenture Song	Indirect evidence	Sydney, Australia	201-500	170 contacts →
	Indirect evidence “Fiftyfive5 We are hiring!” Source: RevenueBase Database · checked Aug 31, 2026
17	Systemsgo	Indirect evidence	Sydney, Australia	51-200	112 contacts →
	Indirect evidence “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: RevenueBase Database · checked Aug 31, 2026
18	Bendelta	Indirect evidence	Brisbane City, Australia	51-200	111 contacts →
	Indirect evidence “Bendelta is Australia’s most awarded leadership and organisational design management consultancy - transforming individuals, teams and organisations to unlock human potential and…” Source: RevenueBase Database · checked Aug 31, 2026
19	Projects Assured	Strong evidence	Braddon, Australia	51-200	111 contacts →
	Strong evidence “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: RevenueBase Database · checked Aug 31, 2026
20	Sensei	Indirect evidence	Brisbane City, Australia	51-200	95 contacts →
	Indirect evidence “At Sensei we partner with you to help improve the way you work.” Source: RevenueBase Database · checked Aug 31, 2026
21	Parbery	Indirect evidence	Fyshwick, Australia	51-200	76 contacts →
	Indirect evidence “Parbery is a values-driven professional advisory firm and an Australian-owned SME, with a presence in ACT, QLD, SA and VIC.” Source: RevenueBase Database · checked Aug 31, 2026
22	Proximity	Strong evidence	Canberra, Australia	51-200	75 contacts →
	Strong evidence “We bring together brilliant minds in consulting, legal and commercial to work in collaboration with our clients.” Source: RevenueBase Database · checked Aug 31, 2026
23	Collabgenics	Strong evidence	Arana Hills, Australia	501-1,000	71 contacts →
	Strong evidence “Collabgenics Consulting is a leading professional services company, providing a broad range of services and solutions in strategy, consulting, digital, technology and operations.” Source: RevenueBase Database · checked Aug 31, 2026
24	Maximus International	Indirect evidence	Melbourne, Australia	51-200	70 contacts →
	Indirect evidence “We exist to move minds, transform businesses, and leave a legacy of proven value.” Source: RevenueBase Database · checked Aug 31, 2026
25	PPB Advisory	Indirect evidence	Perth, Australia	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 Aug 31, 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: business 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 business consulting firms.
Partial evidence: Its own public description names part of business consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business 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 4,239 business consulting firms based in Australia

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Business consulting firms based in Australia at a glance

As of Aug 31, 2026

43.6%Verified-email coverage

12.2%Mobile-number coverage

9.6Average contacts per company

1-10Median size (employees)

21.8%Largest-city concentration · Sydney

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

3,482

11-50

607

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 business 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 Australia whose own description of what they do matches “business 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 business 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 business 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 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, 17,645 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 August 31, 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.

Business consulting firms by metro

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 business 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 business consulting firms are there based in Australia?

RevenueBase identified 4,239 business consulting firms headquartered in Australia as of August 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 business consulting firms?

Sydney leads with 926 headquartered companies, followed by Melbourne (801) and Brisbane (423).

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 17,645 verified decision-maker contacts tracked across these 4,239 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.