Company lists · Data refreshed September 2026

Top 25 Big 6 accounting firms based in Sydney, Australia

Name: Big 6 accounting 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 118 companies tracked

RevenueBase identified 118 big 6 accounting firms headquartered in Sydney, Australia as of September 2026 and tracks 14,500 professional contacts across them, including 3,276 with verified work emails. Sydney is the largest hub.

This list covers big 6 accounting 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

118Companies

14,500Contacts tracked

3,276Verified emails

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The 25 largest big 6 accounting firms based in Sydney, Australia

Ranked by team size

Top 25 of 118 big 6 accounting 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 big 6 accounting 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	Kpmg Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	5,001-10,000	9,024 contacts →
	Indirect evidence “Welcome to KPMG.” Source: RevenueBase Database · checked Sep 21, 2026
2	Grant Thornton Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1,001-5,000	1,626 contacts →
	Indirect evidence “Your business deserves remarkable support.” Source: RevenueBase Database · checked Sep 21, 2026
3	William Buck	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1,001-5,000	1,088 contacts →
	Indirect 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 21, 2026
4	Hall Chadwick	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	266 contacts →
	Partial evidence “Hall Chadwick is one of the largest and most experienced accounting groups in Australia servicing clients in every major capital city and many regional centres in Australia.” Source: RevenueBase Database · checked Sep 21, 2026
5	Nexia Australia	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	501-1,000	131 contacts →
	Partial 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 21, 2026
6	Bell Partners	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	124 contacts →
	Partial 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 21, 2026
7	ESV	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	96 contacts →
	Indirect evidence “ESV is a leading mid-tier Australian business advisory and accountancy firm.” Source: RevenueBase Database · checked Sep 21, 2026
8	Byrons	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	85 contacts →
	Indirect 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 21, 2026
9	The Azure Group	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
10	CAAA	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	52 contacts →
	Indirect evidence “We specialise in private clients, business advisory, large SME’s and have a dedicated Asia-Pacific services division.” Source: RevenueBase Database · checked Sep 21, 2026
11	Walker Wayland NSW	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	50 contacts →
	Indirect 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 21, 2026
12	Titan Partners PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	48 contacts →
	Partial evidence “Specialist accounting firm providing tax consulting, corporate finance, business advisory and compliance services.” Source: RevenueBase Database · checked Sep 21, 2026
13	Cmpartners	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	33 contacts →
	Partial evidence “CMPartners is a well-respected chartered accounting firm with a focus on embracing the best new technology to ensure fast, accurate, efficient and hassle-free advice.” Source: RevenueBase Database · checked Sep 21, 2026
14	DFK Laurence Varnay	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
15	Logicca Chartered Accountants	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	31 contacts →
	Indirect evidence “Logicca was created in July 2006 by a merger of Chartered Accountants with many years’ experience across many different-sized firms and countries.” Source: RevenueBase Database · checked Sep 21, 2026
16	MGI Sydney	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	27 contacts →
	Indirect evidence “MGI Sydney is a member of MGI Worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
17	Smart Wealth Advisors	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	27 contacts →
	Partial evidence “Smart Wealth Advisors is a Sydney-based professional service firm with deep expertise in accounting tax and advisory, who provides adaptive, high-quality and client-focused…” Source: RevenueBase Database · checked Sep 21, 2026
18	Khourys & Associates	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	26 contacts →
	Partial evidence “Khourys & Associates was founded over 30 years ago, as a vision of Charles Khoury, with the desire to provide Accounting, Taxation and Business Advice and Services to the local…” Source: RevenueBase Database · checked Sep 21, 2026
19	ASV Wadeson Incorporating Rhodes Docherty & CO	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “Rhodes Docherty & Co has established its reputation as a reliable and highly qualified firm of chartered accountants where personal service, direct access to partners and prompt…” Source: RevenueBase Database · checked Sep 21, 2026
20	WIS Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “Wis Australia: Founded in 2013 as 'Wis Partners', Wis Australia has swiftly risen as a boutique powerhouse in professional services, with a pronounced presence in New South Wales…” Source: RevenueBase Database · checked Sep 21, 2026
21	XARY	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	21 contacts →
	Indirect evidence “At XARY, we help small and medium sized businesses grow by simplifying complexities, to scale with confidence.” Source: RevenueBase Database · checked Sep 21, 2026
22	Enspira Financial	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	19 contacts →
	Partial evidence “Enspira Financial is a relationship-based advisory accounting firm.” Source: RevenueBase Database · checked Sep 21, 2026
23	KMB Business Advisors & Chartered Accountants	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “KMB business advisors and chartered accountants is a Sydney based firm offering a diverse range of services including audit, consulting, financial advisory, risk management, and…” Source: RevenueBase Database · checked Sep 21, 2026
24	WLM Accounting	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “We work with businesses in growth, with complex needs, operating locally and internationally.” Source: RevenueBase Database · checked Sep 21, 2026
25	Charltons Accountants	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “At Charltons, we stand as a premier chartered accounting firm in Sydney, dedicated to empowering our clients for over 40 years with specialized accounting guidance.” 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: big 6 accounting 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 big 6 accounting firms.
Partial evidence: Its own public description names part of big 6 accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name big 6 accounting 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 118 big 6 accounting firms based in Sydney, Australia

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Big 6 accounting firms based in Sydney, Australia at a glance

As of Sep 21, 2026

22.6%Verified-email coverage

122.9Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 118 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 big 6 accounting 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 “big 6 accounting 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 big 6 accounting 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 big 6 accounting 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, 3,276 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.

Big 6 accounting 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 big 6 accounting 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 big 6 accounting firms are there based in Sydney, Australia?

RevenueBase identified 118 big 6 accounting 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?

Kpmg Australia, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most big 6 accounting firms?

Sydney leads with 118 headquartered companies, followed by Melbourne (80) and Brisbane (41).

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 3,276 verified decision-maker contacts tracked across these 118 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.