Company lists · Data refreshed September 2026
Top 25 Network security monitoring companies based in Australia
RevenueBase identified 142 network security monitoring companies headquartered in Australia as of September 2026 and tracks 1,429 professional contacts across them, including 563 with verified work emails and 68 with mobile numbers. Melbourne is the largest hub.
This list covers network security monitoring companies 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 5, 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 25 largest network security monitoring companies based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 123 | ||||
“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 122 | ||||
“Infotrust (ITS) is Australia’s leading cyber security and managed technology services provider listed on the ASX.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 46 | ||||
“Clarity in a complex world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 42 | ||||
“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 41 | ||||
“Seccom Global - The Cyber Security Company Providing excellence in service to educate, connect and protect your business Founded in 2003, Seccom Global is recognised as a leader…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 35 | ||||
“When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 33 | ||||
“NSB Cyber is an Australian-founded, privately owned cyber security company based in Sydney.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 33 | ||||
“Founded by Sohail Ershadi, a distinguished cybersecurity expert with over a decade of experience in the IT industry, CyberXcel has rapidly emerged as a leader in cybersecurity…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 26 | ||||
“Minimise the risk of a cybersecurity incident.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 25 | ||||
“Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 24 | ||||
“ThreatDefence provides innovative Security Operations and cyber defence solutions to MSPs and Enterprises.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 18 | ||||
“CyberSecOn is an Information security company with a presence in Australia, USA and India.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 17 | ||||
“Zynet is an Australian cyber security and IT services provider with more than 25 years of experience protecting organisations and keeping critical systems running.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 14 | ||||
“Sentaris (a certified B Corporation) is an Australian security services provider specialising in cyber assurance and incident response services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 | ||||
“Facing the Complexities of Cybersecurity?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 | ||||
“We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 | ||||
“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.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 11 | ||||
“Security simplified.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 | ||||
“First responders.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 | ||||
“With ZIRILIO on your side, the digital world just became safer.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 | ||||
“Hyprfire helps busy IT teams have the capability to actively monitor for abnormal behaviour on networks, acting as an early warning system.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 | ||||
“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…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 | ||||
“Ensuring best possible performance of your systems and networks provides extended life of systems and saves you money.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 142 network security monitoring companies based in Australia
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Network security monitoring companies based in Australia at a glance
As of Sep 5, 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 network security monitoring companies, 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 “network security monitoring companies”. 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 network security monitoring companies, 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, 563 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 5, 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.
Network security monitoring companies by metro
- Network security monitoring companies in Melbourne35
- Network security monitoring companies in Sydney26
Frequently asked
How many network security monitoring companies are there based in Australia?
RevenueBase identified 142 network security monitoring companies 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?
Triskele Labs, headquartered in Melbourne, tops this list with the largest team on record.
Which city has the most network security monitoring companies?
Melbourne leads with 35 headquartered companies, followed by Sydney (26) and Brisbane (6).
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 563 verified decision-maker contacts tracked across these 142 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 5, 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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