Company lists · Data refreshed September 2026

Top 25 IT security companies for accounting firms based in Australia

RevenueBase identified 122 company matches for IT security companies for accounting firms associated with Australia as of September 2026 and tracks 856 professional contacts across them, including 312 with verified work emails. Melbourne is the largest hub.

This list covers company matches for IT security companies for accounting 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 28, 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 28, 2026 How this list was built
122Companies
856Contacts tracked
312Verified emails
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The 25 largest IT security companies for accounting firms based in Australia

Ranked by team size
Top 25 of 122 company matches for IT security companies for accounting firms based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 28, 202651-200123 contacts →

Exact match

“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchCanberra, AustraliaHQ recorded Sep 28, 202651-20035 contacts →

Exact match

“When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchCremorne, AustraliaHQ recorded Sep 28, 202651-20035 contacts →

Exact match

“Good people solving important problems.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchWest End, AustraliaHQ recorded Sep 28, 202611-5021 contacts →

Exact match

“We believe accounting firms should be free from the cost and complexity of traditional IT.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchBrisbane, AustraliaHQ recorded Sep 28, 202611-5019 contacts →

Exact match

“RightSec offers a wide range of cyber security services to meet all business needs, from our Governance, Risk and Compliance (GRC) practice to our more technical services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchMelbourne, AustraliaHQ recorded Sep 28, 202611-5018 contacts →

Exact match

“CyberSecOn is an Information security company with a presence in Australia, USA and India.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchTullamarine, AustraliaHQ recorded Sep 28, 202611-5017 contacts →

Exact match

“Zynet is an Australian cyber security and IT services provider with more than 25 years of experience protecting organisations and keeping critical systems running.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchCremorne, AustraliaHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“Facing the Complexities of Cybersecurity?”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“Morrisec provides tailored security strategies and services that align with each company’s specific threat landscape, risk profile, and strategic goals.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchMelbourne, AustraliaHQ recorded Sep 28, 202651-20012 contacts →

Exact match

“Secured Enterprise is a globally recognized pioneer in online cyber security that collaborate with businesses in Australia, Europe, South Africa, North America, and New Zealand.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchCanberra, AustraliaHQ recorded Sep 28, 202611-5011 contacts →

Exact match

“Security simplified.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchCastle Hill, AustraliaHQ recorded Sep 28, 202611-5011 contacts →

Exact match

“First responders.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchSouth East Queensland, AustraliaHQ recorded Sep 28, 202611-509 contacts →

Exact match

“Cyber Audit Team is a leading multi-disciplinary Australian cyber security company offering holistic 'end-to-end' solutions, ensuring that our clients' businesses are operating in…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-509 contacts →

Exact match

“CyberHub was established with the aim of making Cyber Security more available to companies of all sizes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchCentral Queensland, AustraliaHQ recorded Sep 28, 20261-109 contacts →

Exact match

“Overview: Cyber Ethos is a leading cybersecurity business based in Queensland, Australia, equipping businesses with unrivalled cybersecurity solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchAustraliaHQ recorded Sep 28, 202651-2009 contacts →

Exact match

“north is about helping clients tailor their cyber security to the challenges that are specific to their business.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchSunshine Coast, AustraliaHQ recorded Sep 28, 20261-108 contacts →

Exact match

“Haksec is a small cybersecurity firm based in Queensland, Australia founded by Luke Stephens (hakluke).”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchSunshine Coast, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“A fresh approach to Cyber Security that enhances your business position and data protection.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchNarre Warren, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Virtual IT Managed Services is a leading Provider in Cybersecurity and Managed IT Services for Accountants, Lawyers and other Professional Services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Fort1: Comprehensive Cybersecurity Services based in Australia.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchMelbourne, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“At Trinity we are dedicated to providing our clients with the best possible customer experience while ensuring their safety and security in the digital world.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchMelbourne, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“At CyberZone Global, we provide expert cyber advisory, security testing, consulting, Artificial Intelligence and cyber security training services tailored to your organisation’s…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“At D2UNet, we take a multi-faceted approach to cybersecurity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Who are NSAA Security NSAA Security team have years of experience working within highly demanding information security environments.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-504 contacts →

Exact match

“At Renaissance IT, we provide cyber security consulting and training.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 122 IT security companies for accounting firms based in Australia

See the full list, filter by size, metro and specialty, and access 312 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT security companies for accounting firms based in Australia at a glance

As of Sep 28, 2026
36.4%Verified-email coverage
7.0Average contacts per company
1-10Median size (employees)
21.3%Largest-city concentration · Melbourne
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
76
11-50
37
51-200
8
201-500
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 122 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 “IT security companies for accounting 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 312 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 28, 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.

IT security companies for accounting firms by metro

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 “IT security companies for accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT security companies for accounting firms are there based in Australia?

RevenueBase identified 122 company matches for IT security companies for accounting 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?

Triskele Labs tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT security companies for accounting firms?

Melbourne leads with 26 company records, followed by Sydney (24) and Canberra (6).

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 312 professional contacts with verified work emails tracked across these 122 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 28, 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.