Company lists · Data refreshed September 2026
Top 21 Security engineers based in Australia
RevenueBase identified 44 security engineers headquartered in Australia as of September 2026 and tracks 395 professional contacts across them, including 225 with verified work emails and 24 with mobile numbers. Sydney is the largest hub.
This list covers security engineers headquartered in 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 21 largest security engineers based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 101 | ||||
“ARA Security delivers turnkey security solutions to a number of industries across Australia.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 52 | ||||
“SCG specialises in providing independent security and communications engineering, and security threat and risk consultancy services, to clients operating in challenging security…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 51 | ||||
“Welcome to Fortis Security, founded in September of 2013, Fortis has grown year on year with customer support.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 39 | ||||
“Simplify Cloud Security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 20 | ||||
“SureCity Networks is an Australian Cybersecurity firm with offices in Melbourne, Sydney, Brisbane and the UK, trusted by enterprises globally.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | F S Solutions ACTPartial evidence | 12 | |||
“FS Solutions deliver comprehensive services across the sectors of Fire Protection and Security Services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 10 | ||||
“Networx Australia are Internet Security Experts, providing a wealth of experience and expertise in designing, configuring and implementing the major brands of Internet Security…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 8 | ||||
“AMR Security installs and services electronic security systems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 5 | ||||
“Secure computing and digital security transformation.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 5 | ||||
“Welcome to Oliver-Ramsay Security Quality electronic security, monitoring and access solutions for the commercial and government sectors We believe that the best products and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3 | ||||
“Security organisation with access to light year of security experience and ‘secure it’ attitude.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 2 | ||||
“Azimuth Security is a small, independent information security consultancy, focused intensely on providing best-of-breed technical services for our clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2 | ||||
“Blueside are an experienced cybersecurity team skilled in securing organisations against internal and external threats.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2 | ||||
“After years working in IT management and cybersecurity, we kept seeing the same pattern: businesses investing in technology but leaving security as a second thought.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 | ||||
“Defend My Cloud is a Cybersecurity startup consultancy that designs, builds and deploys enterprise Cybersecurity solutions to mitigate Cyber attacks against your network…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 | ||||
“Aus Security Products stands as a premier supplier of SCEC endorsed and approved security solutions, serving the Australian government and Defence sectors for over four decades.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 | ||||
“We provide technical consultancy services for businesses.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 | ||||
“Radiant Security is an Australian based firm focused on modern security practices primarily within the application security, cloud and infrastructure space.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 | ||||
“Cyber security design in the cloud and on premise is pivotal to protecting your vital company assets both tangible and intangible.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 | ||||
“With over 20 years in the security industry and over 30 years of providing electronic solutions to technology sectors within construction, banking, defence, education, IT &…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | PIA Security GroupPartial evidence | 1 | |||
“Security System Audit Security Solutions offers a risk assessment service through a comprehensive 'security system audit' process.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 21 of 44 security engineers based in Australia
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Security engineers based in Australia at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 engineers, 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 Australia whose own description of what they do matches “security engineers”. 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 engineers, and records with no verified work email. Companies headquartered outside Australia 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, 225 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.
Frequently asked
How many security engineers are there based in Australia?
RevenueBase identified 44 security engineers headquartered in 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?
ARA Security, headquartered in Kingsgrove, tops this list with the largest team on record.
Which city has the most security engineers?
Sydney leads with 9 headquartered companies, followed by Melbourne (7) and Brisbane (2).
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 225 verified decision-maker contacts tracked across these 44 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.