Company lists · Data refreshed September 2026
Top 12 Security auditing firms based in Brisbane, Australia
RevenueBase identified 35 security auditing firms headquartered in Brisbane, Australia as of September 2026 and tracks 93 professional contacts across them, including 32 with verified work emails. Sydney is the largest hub.
This list covers security auditing firms headquartered in Brisbane, 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, how directly it supports the match, and when it was last checked. 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.
The 12 largest security auditing firms based in Brisbane, Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 19 | ||||
“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.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 9 | ||||
“We are an Australian based boutique, modern and industry-leading professional services organisation specialising in best practice assurance reviews for Gateway, Agile, Cyber…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 7 | ||||
“dotSec is a professional cyber security organisation that was founded in on a single premise: A business that treats security as a strategic asset should be able to operate with…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 4 | ||||
“24/7/365 Cyber Protection That Keeps Your Business Secure.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 4 | ||||
“Acumenis is an independent Australian cyber security consultancy delivering senior-led testing, assurance, and advisory to organisations across Australia and internationally.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 3 | ||||
“Multibiz Solutions: The Strategic Mandate for Corporate Evolution In a corporate landscape redefined by AI, Quantum Computing, and accelerated change, Organizational Survival…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 2 | ||||
“We are Coppe; a team of dedicated security and technology experts.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Keystone Cyber Security PTY LTDIndirect evidence | 2 | |||
“Experience And Capability In A Complex Environment The cyber landscape is an ever changing environment that requires experience and a current knowledge base to effectively protect…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Meikle ConsultingIndirect evidence | 2 | |||
“Business focused cyber management consultants with demonstrated experience within program lead and stand-in advisory roles across governance risk compliance (GRC), and cyber…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Secureroo Cyber SecurityPartial evidence | 1 | |||
“Secureroo takes the guesswork out of addressing your cyber security risks.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1 | ||||
“BlackMouse Digital Intelligence specialises in Information and Cyber Security consulting services transforming organisational security practices by applying proven techniques.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 | ||||
“We manage cyber risk and offer hardware solutions, security consulting and advisory services; governance, risk and compliance assessments, penetration testing, and assurance that…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 12 of 35 security auditing firms based in Brisbane, Australia
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Security auditing firms based in Brisbane, Australia at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole Australia list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Brisbane, over 35 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 security auditing firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Brisbane, Australia whose own description of what they do matches “security auditing firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security auditing firms, and records with no verified work email. Companies headquartered outside Brisbane 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 an evidence 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, 32 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 6, 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.
Security auditing firms by metro in Australia
- Security auditing firms in Sydney101
- Security auditing firms in Melbourne82
- Security auditing firms in Brisbane35
- Security auditing firms in Canberra26
Frequently asked
How many security auditing firms are there based in Brisbane, Australia?
RevenueBase identified 35 security auditing firms headquartered in Brisbane, 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?
Rightsec, headquartered in Brisbane, tops this list with the largest team on record.
Which city has the most security auditing firms?
Sydney leads with 101 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 32 verified decision-maker contacts tracked across these 35 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 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.
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