Company lists · Data refreshed September 2026

Top 21 Compliance and IT audit firms based in Australia

RevenueBase identified 187 company matches for compliance and IT audit firms associated with Australia as of September 2026 and tracks 1,230 professional contacts across them, including 472 with verified work emails. Sydney is the largest hub.

This list covers company matches for compliance and IT audit firms associated with Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built
187Companies
1,230Contacts tracked
472Verified emails
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The 21 largest compliance and IT audit firms based in Australia

Ranked by team size
Top 21 of 187 company matches for compliance and IT audit firms based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMelbourne, AustraliaHQ recorded Sep 19, 202651-200101 contacts →

Exact match

“Australian Essential Services Compliance (AESC) is your trusted industry advisor in the property risk and compliance space.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchHaymarket, AustraliaHQ recorded Sep 19, 202611-5051 contacts →

Exact match

“Your Trusted Audit and Assurance Specialist National Audits Group partners with accounting firms across Australia, offering independent audit and assurance services that enhance…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchAdelaide, AustraliaHQ recorded Sep 19, 202651-20042 contacts →

Exact match

“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchMaroubra, AustraliaHQ recorded Sep 19, 20261-1027 contacts →

Exact match

“Streamline-Integrate-Create.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchSydney, AustraliaHQ recorded Sep 19, 202611-5026 contacts →

Exact match

“LNP Audit and Assurance is a dynamic growing specialist audit and assurance practice.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchSydney, AustraliaHQ recorded Sep 19, 202611-5024 contacts →

Exact match

“Compliance, uncomplicated.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchParramatta, AustraliaHQ recorded Sep 19, 202611-5021 contacts →

Exact match

“SDJA is a progressive and dynamic firm aimed at providing cost effective, reliable and value-based audit solutions to the not-for-profit industry and private sector.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchOrange, AustraliaHQ recorded Sep 19, 20261-1019 contacts →

Exact match

“We are a specialist, audit only firm providing professional audit and assurance services throughout New South Wales.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchMelbourne, AustraliaHQ recorded Sep 19, 202611-5017 contacts →

Exact match

“GRC360 Pvt.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchSouth Brisbane, AustraliaHQ recorded Sep 19, 202611-5016 contacts →

Exact match

“We provide exceptional, modern, efficient audit and assurance services maximising the smart use of technology whilst maintaining a personal touch.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchMelbourne, AustraliaHQ recorded Sep 19, 20261,001-5,00014 contacts →

Exact match

“Serve Legal offers a wide range of retail compliance services and have a team of trained and experienced auditors ready to visit sites throughout Australia.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchFyshwick, AustraliaHQ recorded Sep 19, 20261-1013 contacts →

Exact match

“Contractor Compliance Australia provides businesses from large international companies to the small sole trader across Australia with compliance services, assisting with their IRE…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchMelbourne, AustraliaHQ recorded Sep 19, 202611-5011 contacts →

Exact match

“Information security and technology risk management consulting - at CyberRisk we design, implement and operate information security programs to allow you to reduce and manage your…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchChatswood, AustraliaHQ recorded Sep 19, 202611-5010 contacts →

Exact match

“Regulatory obligations for AFSL and ACL licensees and advisers are increasing in complexity, cost and scrutiny.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchReservoir, AustraliaHQ recorded Sep 19, 20261-1010 contacts →

Exact match

“ISO365 offers a range of compliance-related services, such as ISO implementation, policy development, risk management, continuous improvement, staff training, monitoring, internal…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchBrisbane, AustraliaHQ recorded Sep 19, 202611-509 contacts →

Exact match

“We are an Australian based boutique, modern and industry-leading professional services organisation specialising in best practice assurance reviews for Gateway, Agile, Cyber…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchAdelaide, AustraliaHQ recorded Sep 19, 20261-107 contacts →

Exact match

“Synergy Compliance is a specialist compliance and governance consultancy and managed service provider.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchSydney, AustraliaHQ recorded Sep 19, 202651-2007 contacts →

Exact match

“3Lines is a multi-disciplinary compliance business supporting AFSLs across technology, legal, consulting and training.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchBerwick, AustraliaHQ recorded Sep 19, 20261-107 contacts →

Exact match

“Compliance Management Solution’s (CMS) policy is to consistently meet the needs and expectations of its customers.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchSydney, AustraliaHQ recorded Sep 19, 20261-106 contacts →

Exact match

“PX Resources is a specialist recruitment and advisory firm dedicated to the governance, risk, compliance, and internal audit professions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchSydney, AustraliaHQ recorded Sep 19, 202611-506 contacts →

Exact match

“Welcome to Assured Auditing, your premier destination for top-tier compliance solutions and audit excellence.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 21 of 187 compliance and IT audit firms based in Australia

See the full list, filter by size, metro and specialty, and access 472 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Compliance and IT audit firms based in Australia at a glance

As of Sep 19, 2026
38.4%Verified-email coverage
6.6Average contacts per company
1-10Median size (employees)
20.3%Largest-city concentration · Sydney
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
136
11-50
42
51-200
6
1,001-5,000
1

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 187 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Australia whose business descriptions match “compliance and IT audit firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 472 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “compliance and IT audit firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many compliance and IT audit firms are there based in Australia?

RevenueBase identified 187 company matches for compliance and IT audit firms associated with Australia as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Australian Essential Services Compliance Aesc tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most compliance and IT audit firms?

Sydney leads with 38 company records, followed by Melbourne (27) and Brisbane (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 472 professional contacts with verified work emails tracked across these 187 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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.