Company lists · Data refreshed September 2026
Top 24 Security architecture consulting firms based in Australia
RevenueBase identified 613 security architecture consulting firms headquartered in Australia as of September 2026 and tracks 4,149 professional contacts across them, including 1,541 with verified work emails and 216 with mobile numbers. Sydney is the largest hub.
This list covers security architecture consulting firms 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 24 largest security architecture consulting firms based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 170 | ||||
“Ensuring your business is handling cyber security risks effectively has never been more important.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 62 | ||||
“Skillfield is a Melbourne-born Cyber Security, AI and big data solutions provider and professional services consultancy.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 61 | ||||
“Welcome to Ampion.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 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. | |||||
| 9 | 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. | |||||
| 10 | 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. | |||||
| 11 | 37 | ||||
“SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 35 | ||||
“C5 Technology is a Brisbane-based IT consultancy company and systems integrator.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 35 | ||||
“Good people solving important problems.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 34 | ||||
“The Team at H3C Plus have been providing Security Solutions for 10 years and have over 50 years of combined expertise in the Electronic Security Industry.” Source: company website · checked Sep 6, 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 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 32 | ||||
“Division 5 is focused on building long-term relationships with our clients as their trusted cyber security advisor.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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. | |||||
| 18 | 31 | ||||
“At Excite Cyber, we envision a world where businesses can fearlessly embrace technology and leverage the best cyber expertise for robust, outcome-focused solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 28 | ||||
“OpusV has been operating in the infrastructure design and support space for over 20 years.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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. | |||||
| 21 | 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. | |||||
| 22 | 25 | ||||
“For most organisations in Australia, a data breach can be more than a PR disaster, it could be the final chapter.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 25 | ||||
“FreeCall 1800 GROUP 1.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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. | |||||
Showing 24 of 613 security architecture consulting firms based in Australia
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Security architecture consulting firms 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 architecture consulting 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 Australia whose own description of what they do matches “security architecture consulting 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 architecture consulting firms, 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, 1,541 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 architecture consulting firms by metro
Frequently asked
How many security architecture consulting firms are there based in Australia?
RevenueBase identified 613 security architecture consulting firms 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?
Risk Associates - Emea & Asia, headquartered in Bella Vista, tops this list with the largest team on record.
Which city has the most security architecture consulting firms?
Sydney leads with 128 headquartered companies, followed by Melbourne (127) and Brisbane (43).
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 1,541 verified decision-maker contacts tracked across these 613 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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