Company lists · Data refreshed September 2026
Top 25 Security consultancy companies based in Australia
RevenueBase identified 499 security consultancy companies headquartered in Australia as of September 2026 and tracks 3,749 professional contacts across them, including 1,252 with verified work emails. Melbourne is the largest hub.
This list covers security consultancy 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 consultancy companies based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 228 contacts → | ||||
Partial evidence “We know how to offer the most effective security to our customers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 178 contacts → | ||||
Indirect evidence “For more than 130 years, we have stood alongside our community, protecting homes, families, businesses, and communities.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 170 contacts → | ||||
Partial evidence “Ensuring your business is handling cyber security risks effectively has never been more important.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 87 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 82 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 65 contacts → | ||||
Partial evidence “We are CPS Security Services, a 100% Australian-owned and operated company founded in 2006.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 59 contacts → | ||||
Partial evidence “Guarding Solutions | Armed Guards | 24/7 Grade A1 Monitoring | Mobile Patrols | Electronics | Advisory EXEC Security is an Australian owned, national company that specialises in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 54 contacts → | ||||
Indirect evidence “ctrl:cyber is an Australian owned and operated cybersecurity partner delivering tailored end-to-end solutions for industry-leading organisations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 52 contacts → | ||||
Strong evidence “SCG specialises in providing independent security and communications engineering, and security threat and risk consultancy services, to clients operating in challenging security…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 51 contacts → | ||||
Partial evidence “Welcome to Fortis Security, founded in September of 2013, Fortis has grown year on year with customer support.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 51 contacts → | ||||
Partial evidence “Established in the year Securcom has 20 years’ experience as a specialist security solution provider.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 42 contacts → | ||||
Partial evidence “Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 41 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 37 contacts → | ||||
Partial evidence “SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 35 contacts → | ||||
Indirect evidence “Noetic challenges clients to think differently and adopt new approaches to find solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 34 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 contacts → | ||||
Partial evidence “The Cyber Capability team has extensive experience with many of our principal consultants having worked at senior levels in Federal and State governments and the commercial…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 29 contacts → | ||||
Partial evidence “The Security Hub delivers a complete packaged security solution and a risk mitigation program to its clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 28 contacts → | ||||
Strong evidence “Jigsaw Notions is a professional services consultancy specialising in Cyber Security, Engineering, Procurement, and Management solutions, supporting Australian Industry and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 26 contacts → | ||||
Indirect evidence “Panoptic Solutions is trusted by some of the most influential organisations and individuals in the world to prepare crisis, protection and contingency plans; and operations for…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 26 contacts → | ||||
Partial evidence “About Us - Australia’s leading cybersecurity specialist, delivering comprehensive protection by Australian-based consultants only-no offshore teams- 100% cybersecurity-focused…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 25 contacts → | ||||
Partial evidence “Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 25 contacts → | ||||
Indirect evidence “For most organisations in Australia, a data breach can be more than a PR disaster, it could be the final chapter.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 contacts → | ||||
Indirect evidence “FreeCall 1800 GROUP 1.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 23 contacts → | ||||
Strong evidence “SilentGrid is an offensive security consultancy with a focus on adversary simulation and penetration testing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: security consultancy companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names security consultancy companies.
- Partial evidence
- Its own public description names part of security consultancy companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security consultancy companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 499 security consultancy companies based in Australia
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Security consultancy companies based in Australia at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 499 companies.
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 consultancy companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 consultancy companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security consultancy companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among security consultancy 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 its RevenueBase Smart Search 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, 1,252 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 21, 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 consultancy companies by metro
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security consultancy companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many security consultancy companies are there based in Australia?
RevenueBase identified 499 security consultancy 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?
Securitas Australia, headquartered in Preston, tops this list with the largest team on record.
Which city has the most security consultancy companies?
Melbourne leads with 91 headquartered companies, followed by Sydney (84) and Brisbane (39).
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 1,252 verified decision-maker contacts tracked across these 499 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 21, 2026.
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Security consultancy companies by geography
- Security consultancy companies based in Brisbane, Australia
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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 Smart Search, 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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