Company lists · Data refreshed September 2026

Top 25 Business advisory and consulting firms based in Sydney, Australia

Name: Business advisory and 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 23, 2026 1,150 companies tracked

RevenueBase identified 1,150 business advisory and consulting firms headquartered in Sydney, Australia as of September 2026 and tracks 8,315 professional contacts across them, including 2,598 with verified work emails. Across Australia, Sydney is the largest hub for this category.

This list covers business advisory and 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 23, 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 23, 2026 86% judged on-target in blind review

1,150Companies

8,315Contacts tracked

2,598Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest business advisory and consulting firms based in Sydney, Australia

Ranked by team size

Top 25 of 1,150 business advisory and consulting firms based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to business advisory and 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	William Buck	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	1,001-5,000	1,088 contacts →
	Partial evidence “William Buck is a leading firm of Accountants and advisors with 150 partners and over 1,100 professional staff.” Source: RevenueBase Database · checked Sep 23, 2026
2	Logistics Executive Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	n/a	647 contacts →
	Indirect evidence “Welcome to Logistics Executive Group - The hub of your global supply chain.” Source: RevenueBase Database · checked Sep 23, 2026
3	Fiftyfive5, Part Of Accenture Song	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	201-500	169 contacts →
	Indirect evidence “Fiftyfive5 We are hiring!” Source: RevenueBase Database · checked Sep 23, 2026
4	EATON	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	n/a	154 contacts →
	Partial evidence “EATON provides strategic advisory and search services to law firms and corporates.” Source: RevenueBase Database · checked Sep 23, 2026
5	Nexia Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	501-1,000	131 contacts →
	Indirect evidence “At Nexia Australia, our purpose is to connect you to your true potential by giving you the accounting insight, advice, and support you need to navigate to success.” Source: RevenueBase Database · checked Sep 23, 2026
6	Bell Partners	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	124 contacts →
	Indirect evidence “Winner of BRW’s Most Productive Accounting Firm seven years running (2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 and again 2011).” Source: RevenueBase Database · checked Sep 23, 2026
7	OCM	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	120 contacts →
	Partial evidence “OCM is an Australasian SME advisory firm trusted by government and business to deliver clarity in complexity.” Source: RevenueBase Database · checked Sep 23, 2026
8	Altus Financial	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	108 contacts →
	Indirect evidence “At Altus, we help people, families and businesses thrive.” Source: RevenueBase Database · checked Sep 23, 2026
9	Grant Samuel	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	102 contacts →
	Partial evidence “Full service independent advisory Founded in 1988, our goal has always been simple – consistently deliver innovative advice that is truly valuable to our clients.” Source: RevenueBase Database · checked Sep 23, 2026
10	ESV	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	96 contacts →
	Partial evidence “ESV is a leading mid-tier Australian business advisory and accountancy firm.” Source: RevenueBase Database · checked Sep 23, 2026
11	Byrons	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	85 contacts →
	Partial evidence “BYRONS are one of the largest independent advisory firms in Sydney with 18 Directors and over 80 professional staff.” Source: RevenueBase Database · checked Sep 23, 2026
12	Ey-Parthenon Strategy	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	84 contacts →
	Partial 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 23, 2026
13	Mackay Goodwin	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	77 contacts →
	Indirect evidence “In business, there are no guarantees.” Source: RevenueBase Database · checked Sep 23, 2026
14	PPB Advisory	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	201-500	70 contacts →
	Partial 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 23, 2026
15	AZ NGA	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	501-1,000	55 contacts →
	Indirect evidence “AZ NGA helps more Australians access high-quality advice to build wealth, grow businesses and feel more confident about their financial future.” Source: RevenueBase Database · checked Sep 23, 2026
16	The Azure Group	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	54 contacts →
	Partial evidence “Azure Group is an innovative and dynamic accounting and business advisory firm, based in Sydney, Australia and Shanghai, China.” Source: RevenueBase Database · checked Sep 23, 2026
17	CAAA	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	52 contacts →
	Partial evidence “We specialise in private clients, business advisory, large SME’s and have a dedicated Asia-Pacific services division.” Source: RevenueBase Database · checked Sep 23, 2026
18	Walker Wayland NSW	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	50 contacts →
	Partial evidence “We aim to make our firm a leading accountancy and business advisory firm in Australasia with services relevant to our clients, whether they are large corporates, SMEs, private…” Source: RevenueBase Database · checked Sep 23, 2026
19	Titan Partners PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	48 contacts →
	Strong evidence “Specialist accounting firm providing tax consulting, corporate finance, business advisory and compliance services.” Source: RevenueBase Database · checked Sep 23, 2026
20	NET Fusion Technology	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	51-200	42 contacts →
	Indirect evidence “Unlock the full potential of your small business with Net Fusion Technology (NFT), the ultimate all-in-one solution.” Source: RevenueBase Database · checked Sep 23, 2026
21	PFS Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	35 contacts →
	Indirect evidence “PFS provides specialist advice in areas including strategy, governance, compliance and licensing, risk management, financial modelling, group insurance, actuarial matters…” Source: RevenueBase Database · checked Sep 23, 2026
22	Luminis Partners	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	34 contacts →
	Indirect evidence “Luminis Partners specialises in providing the highest quality of independent, conflict-free advice to major corporations, governments and institutions on strategy, mergers…” Source: RevenueBase Database · checked Sep 23, 2026
23	DFK Laurence Varnay	Indirect evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	32 contacts →
	Indirect evidence “At DFK Laurence Varnay, we believe there are no limits in business, just endless opportunities.” Source: RevenueBase Database · checked Sep 23, 2026
24	Succession Plus	Strong evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	31 contacts →
	Strong evidence “Succession Plus is a boutique consulting and advisory firm for mid-market businesses.” Source: RevenueBase Database · checked Sep 23, 2026
25	The Bridge International	Partial evidence	Sydney, AustraliaHQ checked Sep 23, 2026	11-50	30 contacts →
	Partial evidence “The Bridge International is a non-traditional management consulting team operating in Australia and internationally, with deep client side experience within the financial services…” Source: RevenueBase Database · checked Sep 23, 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 advisory and 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 advisory and consulting firms.
Partial evidence: Its own public description names part of business advisory and 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 advisory and 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 1,150 business advisory and consulting firms based in Sydney, Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,598 reachable decision-makers.

Free signup · no credit card

View the full list →

Business advisory and consulting firms based in Sydney, Australia at a glance

As of Sep 23, 2026

31.2%Verified-email coverage

7.2Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

881

11-50

219

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 1,150 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 business advisory and 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 “business advisory and 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 advisory and 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 advisory and 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, 2,598 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 23, 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 advisory and consulting firms 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 business advisory and 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 advisory and consulting firms are there based in Sydney, Australia?

RevenueBase identified 1,150 business advisory and 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?

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

Which city in Australia has the most business advisory and consulting firms?

Sydney leads Australia with 1,150 headquartered companies, followed by Melbourne (853) 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 2,598 verified decision-maker contacts tracked across these 1,150 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 23, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,150 business advisory and consulting firms based in Sydney, Australia. Start with a free account, no credit card.

Download this list →

Related lists

Business advisory and consulting firms by geography

Browse the directory

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.