Company lists · Data refreshed September 2026
Top 22 Ics security companies based in Australia
RevenueBase identified 310 ics security companies headquartered in Australia as of September 2026 and tracks 3,456 professional contacts across them, including 1,248 with verified work emails and 145 with mobile numbers. Melbourne is the largest hub.
This list covers ics security 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 3, 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 22 largest ics security companies based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 179 | ||||
“For more than 130 years, we have stood alongside our community, protecting homes, families, businesses, and communities.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 136 | ||||
“SAFEgroup Automation (SGA) is a leading Australian provider of control system engineering services, specialising in delivering comprehensive solutions that extend from electrical…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 123 | ||||
“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 105 | ||||
“ARA Security delivers turnkey security solutions to a number of industries across Australia.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 88 | ||||
“ATSYS is a leading Digital Systems, Process Control Systems, and Cyber Security services company.” Source: company website · checked Sep 3, 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 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 63 | ||||
“Entersoft Security is an AI-enabled cybersecurity services firm helping modern enterprises build, ship, and operate secure digital products at scale.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 51 | ||||
“DeployPartners offer unique values and benefits that enable our clients and partners to differentiate on customer service.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 50 | ||||
“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…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 45 | ||||
“Clarity in a complex world.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 42 | ||||
“Slipstream Cyber is a business of Interactive - Australia's leading technology solutions provider.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 34 | ||||
“When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 32 | ||||
“Securemation is an Australian based consulting company which was founded in 2006 to provide consultancy services in the areas of Cyber Security, Information Technology (IT), and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 | ||||
“NSB Cyber is an Australian-founded, privately owned cyber security company based in Sydney.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 29 | ||||
“CSO Group provides ICT security services and solutions to protect Australian businesses from advanced cyber threats.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 29 | ||||
“We are more than just a cybersecurity company; we are your partners in securing your digital future.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 28 | ||||
“OpusV has been operating in the infrastructure design and support space for over 20 years.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 | ||||
“Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 22 of 310 ics security companies based in Australia
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Ics security companies based in Australia at a glance
As of Sep 3, 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 ics security 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 “ics security 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 ics security 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, 1,248 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 3, 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.
Ics security companies by metro
- Ics security companies in Melbourne58
- Ics security companies in Sydney53
Frequently asked
How many ics security companies are there based in Australia?
RevenueBase identified 310 ics security 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?
ADT Security Australia, headquartered in Rydalmere, tops this list with the largest team on record.
Which city has the most ics security companies?
Melbourne leads with 58 headquartered companies, followed by Sydney (53) and Brisbane (23).
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 1,248 verified decision-maker contacts tracked across these 310 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 3, 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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