Company lists · Data refreshed September 2026
Top 25 Security posture management companies based in Australia
RevenueBase identified 437 security posture management companies headquartered in Australia as of September 2026 and tracks 3,442 professional contacts across them, including 1,203 with verified work emails and 163 with mobile numbers. Sydney is the largest hub.
This list covers security posture management 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 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 25 largest security posture management 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 6, 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 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 87 | ||||
“Established in 2001, ISEC is a leading provider of protective security, safety, risk management, and training services to the corporate, commercial and government sectors.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 82 | ||||
“National Protective Services is a leading professional security company, specialising in the provision of quality and tailored protective services and products to ensure optimum…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | StickmancyberIndirect evidence | 72 | |||
“At StickmanCyber we are on a mission to create a digital world that is safe for everyone.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 70 | ||||
“Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 57 | ||||
“IPSec are specialists in information asset and cyber protection; security experts who know how to mitigate cyber risk by assisting in the protection of valuable intelligence…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 55 | ||||
“Australian owned Advent Security has been a leader in providing exceptional, value-for-money services to local, national and international clients in the public, private and…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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. | |||||
| 10 | 46 | ||||
“Clarity in a complex world.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 42 | ||||
“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 35 | ||||
“When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 33 | ||||
“NSB Cyber is an Australian-founded, privately owned cyber security company based in Sydney.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 31 | ||||
“CSO Group provides ICT security services and solutions to protect Australian businesses from advanced cyber threats.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 30 | ||||
“At Nueva, we aim to create a safer digital environment by providing innovative and customised cybersecurity solutions for our clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 28 | ||||
“Ava Group is a market leader of risk management services and technologies, trusted by some of the most security conscious commercial, industrial, military and government clients…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 26 | ||||
“Minimise the risk of a cybersecurity incident.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 26 | ||||
“About Us - Australia’s leading cybersecurity specialist, delivering comprehensive protection by Australian-based consultants only-no offshore teams- 100% cybersecurity-focused…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 25 | ||||
“Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 25 | ||||
“FreeCall 1800 GROUP 1.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 23 | ||||
“SilentGrid is an offensive security consultancy with a focus on adversary simulation and penetration testing.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 21 | ||||
“AMA Security is a provider of strategically tailored security solutions for commercial, business & industry, Government and Defence clients.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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. | |||||
| 25 | 19 | ||||
“We provide offensive cyber security services to world leading organisations.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 437 security posture management companies based in Australia
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Security posture management companies 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 posture management 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 “security posture management 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 security posture management 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, 1,203 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 posture management companies by metro
Frequently asked
How many security posture management companies are there based in Australia?
RevenueBase identified 437 security posture management 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 security posture management companies?
Sydney leads with 98 headquartered companies, followed by Melbourne (76) and Brisbane (28).
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 1,203 verified decision-maker contacts tracked across these 437 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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