Company lists · Data refreshed September 2026

Top 25 Security auditing firms based in Melbourne, Australia

RevenueBase identified 82 company matches for security auditing firms associated with Melbourne, Australia as of September 2026 and tracks 616 professional contacts across them, including 218 with verified work emails. Across Australia, Sydney is the largest hub for this category (101 companies); Melbourne follows with 82.

This list covers company matches for security auditing firms associated with Melbourne, 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 6, 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 6, 2026 How this list was built
82Companies
616Contacts tracked
218Verified emails
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The 25 largest security auditing firms based in Melbourne, Australia

Ranked by team size
Top 25 of 82 company matches for security auditing firms based in Melbourne, Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 6, 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 6, 202651-200123 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202651-20047 contacts →

Exact match

“Our mission is to help our clients protect their assets, reputation, and customers from cyber threats, while also enabling them to embrace digital transformation and innovation…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-5026 contacts →

Exact match

“About Us - Australia’s leading cybersecurity specialist, delivering comprehensive protection by Australian-based consultants only-no offshore teams- 100% cybersecurity-focused…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-5025 contacts →

Exact match

“Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-5019 contacts →

Exact match

“We provide offensive cyber security services to world leading organisations.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
6Exact matchMelbourne, AustraliaHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
7Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-5017 contacts →

Exact match

“GRC360 Pvt.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202651-20015 contacts →

Exact match

“Morfit Group Consulting is a pure IT Consulting and Professional Services organisation.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-5013 contacts →

Exact match

“We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10Exact matchMelbourne, AustraliaHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
11Exact matchMelbourne, AustraliaHQ recorded Sep 6, 20261-108 contacts →

Exact match

“Cyber Range, SOC designing and implementation, risk and security assessment.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-505 contacts →

Exact match

“Secure computing and digital security transformation.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13Exact matchMelbourne, AustraliaHQ recorded Sep 6, 2026201-5005 contacts →

Exact match

“ITSEC Australia & New Zealand helps organisations build resilience across IT, OT, and IoT environments.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
14Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-505 contacts →

Exact match

“With a singular focus on "Information Security", Trusted Impact prides itself on delivering demonstrable business outcomes by applying an independent perspective and by leveraging…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15Exact matchMelbourne, AustraliaHQ recorded Sep 6, 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 6, 2026 · View company records in RevenueBase
16Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-505 contacts →

Exact match

“Secure Alley is an IT and cybersecurity company built for the realities of today’s AI-driven digital landscape.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
17Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-505 contacts →

Exact match

“Cyber Forte is an Australian owned Cyber Security company with headquarters in Melbourne.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18Exact matchMelbourne, AustraliaHQ recorded Sep 6, 20261-103 contacts →

Exact match

“Sicarius is an Australian cybersecurity firm offering three services: Beacon, a continuous security posture monitoring platform for Australian AFFORDABILITY TAILORED FOR SMALL…”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19Exact matchMelbourne, AustraliaHQ recorded Sep 6, 20261-103 contacts →

Exact match

“We take a positive approach to cyber security by focusing on what is important to organisations to make it more secure without disrupting business operations.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20Exact matchMelbourne, AustraliaHQ recorded Sep 6, 20261-103 contacts →

Exact match

“Tawfik Consulting is a dynamic consulting company with subject matter experts is logistics, system engineering and cyber security.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202651-2002 contacts →

Exact match

“Pure Security is part of the Tesserent group, and is rebranding as Tesserent - Australia's largest ASX listed cybersecurity company (ASX:TNT).”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22Exact matchMelbourne, AustraliaHQ recorded Sep 6, 20261-102 contacts →

Exact match

“Products and services”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202651-2001 contacts →

Exact match

“Proudly Australian-owned, InTec1 is a leading provider of professional security consulting services to the government, commercial and critical infrastructure sectors.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-501 contacts →

Exact match

“Global Sentynel is a consulting company that commenced operations in June 2023 in Australia, the United States, and Mexico.”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25Exact matchMelbourne, AustraliaHQ recorded Sep 6, 202611-501 contacts →

Exact match

“4walls helps directors, owners and executives answer three big questions: Where do we stand?”

Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase

Showing 25 of 82 security auditing firms based in Melbourne, Australia

See the full list, filter by size, metro and specialty, and access 218 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Security auditing firms based in Melbourne, Australia at a glance

As of Sep 6, 2026
35.4%Verified-email coverage
7.5Average contacts per company
1-10Median size (employees)
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
50
11-50
19
51-200
11
201-500
2

Email recency for this list is measured across the whole Australia list rather than for Melbourne, so it is reported there. Company counts and contact totals on this page are exact for Melbourne, over 82 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 Melbourne, Australia whose business descriptions match “security auditing 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 218 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 6, 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 “security auditing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many security auditing firms are there based in Melbourne, Australia?

RevenueBase identified 82 company matches for security auditing firms associated with Melbourne, 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 in Australia has the most security auditing firms?

Sydney leads Australia with 101 company records, followed by Melbourne (82) and Brisbane (35).

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 218 professional contacts with verified work emails tracked across these 82 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 6, 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.