Company lists · Data refreshed September 2026

Top 25 Cybersecurity companies based in Australia

Name: Cybersecurity companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 1,009 companies tracked

Our directory lists 1,009 cybersecurity companies based in Australia, with 9,747 professional contacts and 4,401 email addresses. The list was last updated in September 2026, and Sydney is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of September 14, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

1,009Companies

9,747Contacts tracked

4,401Verified emails

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The 25 largest cybersecurity companies based in Australia

Ranked by team size

Top 25 of 1,009 cybersecurity companies based in Australia, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Centorrino Technologies	Indirect evidence	Coburg, AustraliaHQ checked Sep 14, 2026	201-500	352 contacts →
	Indirect evidence “We are an Australian-owned, full-service ICT Solutions and Cyber Security provider with a locally based team of over 450 passionate Aussies.” Source: RevenueBase Database · checked Sep 14, 2026
2	Risk Associates - Emea & Asia	Indirect evidence	Bella Vista, AustraliaHQ checked Sep 14, 2026	51-200	170 contacts →
	Indirect evidence “Ensuring your business is handling cyber security risks effectively has never been more important.” Source: RevenueBase Database · checked Sep 14, 2026
3	Virtual IT Group Vitg	Strong evidence	Sydney, AustraliaHQ checked Sep 14, 2026	201-500	167 contacts →
	Strong evidence “Virtual IT Group is Australia & New Zealand's leading managed IT cybersecurity provider.” Source: RevenueBase Database · checked Sep 14, 2026
4	SAPIO	Indirect evidence	West Ryde, AustraliaHQ checked Sep 14, 2026	51-200	129 contacts →
	Indirect evidence “We are Sapio.” Source: RevenueBase Database · checked Sep 14, 2026
5	Triskele Labs	Strong evidence	Melbourne, AustraliaHQ checked Sep 14, 2026	51-200	123 contacts →
	Strong evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 14, 2026
6	Infotrust	Indirect evidence	Sydney, AustraliaHQ checked Sep 14, 2026	201-500	122 contacts →
	Indirect evidence “Infotrust (ITS) is Australia’s leading cyber security and managed technology services provider listed on the ASX.” Source: RevenueBase Database · checked Sep 14, 2026
7	Renew IT	Indirect evidence	Lane Cove West, AustraliaHQ checked Sep 14, 2026	51-200	115 contacts →
	Indirect evidence “Innovative Managed Services: Bridging Assets, Systems, and Security Welcome to Renew IT, your trusted partner in delivering comprehensive managed services, systems integration…” Source: RevenueBase Database · checked Sep 14, 2026
8	Aucyber	Indirect evidence	Fortitude Valley, AustraliaHQ checked Sep 14, 2026	51-200	107 contacts →
	Indirect evidence “AUCyber is a leading Australian cyber security and secure cloud provider, specialising in supporting businesses and Governments with the latest cloud infrastructure, backup and…” Source: RevenueBase Database · checked Sep 14, 2026
9	Sekuro	Indirect evidence	AustraliaHQ checked Sep 14, 2026	51-200	104 contacts →
	Indirect evidence “Sekuro is a cyber security and digital resiliency solutions provider that helps CIOs and CISOs take a strategic approach to cyber security risk mitigation and building business…” Source: RevenueBase Database · checked Sep 14, 2026
10	Ever Nimble	Indirect evidence	West Perth, AustraliaHQ checked Sep 14, 2026	51-200	102 contacts →
	Indirect evidence “We are your IT & Cyber Security partners.” Source: RevenueBase Database · checked Sep 14, 2026
11	ARA Security	Indirect evidence	Kingsgrove, AustraliaHQ checked Sep 14, 2026	201-500	101 contacts →
	Indirect evidence “ARA Security delivers turnkey security solutions to a number of industries across Australia.” Source: RevenueBase Database · checked Sep 14, 2026
12	Consunet PTY LTD	Indirect evidence	Adelaide, AustraliaHQ checked Sep 14, 2026	51-200	100 contacts →
	Indirect evidence “Consunet is 100% Australian-owned and operated, with 20 years of market participation resulting in capability and capacity to lead major projects as a trusted industry partner to…” Source: RevenueBase Database · checked Sep 14, 2026
13	Kaine Mathrick Tech	Indirect evidence	Port Melbourne, AustraliaHQ checked Sep 14, 2026	51-200	93 contacts →
	Indirect evidence “Australia’s cyber-first Managed Service Provider and true technology partner.” Source: RevenueBase Database · checked Sep 14, 2026
14	Informatech PTY LTD	Indirect evidence	Canberra, AustraliaHQ checked Sep 14, 2026	51-200	88 contacts →
	Indirect evidence “Informatech is a veteran led business and specialises in ICT within Defence.” Source: RevenueBase Database · checked Sep 14, 2026
15	Secure Agility	Indirect evidence	Sydney, AustraliaHQ checked Sep 14, 2026	51-200	87 contacts →
	Indirect evidence “Secure Agility is a Australian-based technology partner specialising in secure managed IT services for NSW government, enterprise and mid-market organisations.” Source: RevenueBase Database · checked Sep 14, 2026
16	Stickmancyber	Indirect evidence	Macquarie Park, AustraliaHQ checked Sep 14, 2026	51-200	72 contacts →
	Indirect evidence “At StickmanCyber we are on a mission to create a digital world that is safe for everyone.” Source: RevenueBase Database · checked Sep 14, 2026
17	Northbridge Systems	Strong evidence	Sydney, AustraliaHQ checked Sep 14, 2026	51-200	70 contacts →
	Strong evidence “Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Source: RevenueBase Database · checked Sep 14, 2026
18	Skillfield	Indirect evidence	Melbourne, AustraliaHQ checked Sep 14, 2026	51-200	62 contacts →
	Indirect evidence “Skillfield is a Melbourne-born Cyber Security, AI and big data solutions provider and professional services consultancy.” Source: RevenueBase Database · checked Sep 14, 2026
19	3columns	Indirect evidence	502, AustraliaHQ checked Sep 14, 2026	51-200	61 contacts →
	Indirect evidence “Discover 3Columns, your premier destination for cutting-edge cyber security solutions.” Source: RevenueBase Database · checked Sep 14, 2026
20	Ipsec PTY LTD	Indirect evidence	Cremorne, AustraliaHQ checked Sep 14, 2026	11-50	57 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 14, 2026
21	Ctrl Cyber	Strong evidence	Melbourne, AustraliaHQ checked Sep 14, 2026	51-200	54 contacts →
	Strong 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 14, 2026
22	Deploypartners	Indirect evidence	North Sydney, AustraliaHQ checked Sep 14, 2026	51-200	51 contacts →
	Indirect evidence “DeployPartners offer unique values and benefits that enable our clients and partners to differentiate on customer service.” Source: RevenueBase Database · checked Sep 14, 2026
23	Dimiya Tech	Strong evidence	Melbourne, AustraliaHQ checked Sep 14, 2026	51-200	50 contacts →
	Strong evidence “DIMIYA Tech is a Melbourne, Australia based- global Cybersecurity and IT services provider supporting organizations that require secure, scalable, and high-performance technology…” Source: RevenueBase Database · checked Sep 14, 2026
24	Emergence Insurance	Indirect evidence	Sydney, AustraliaHQ checked Sep 14, 2026	51-200	49 contacts →
	Indirect evidence “Emergence is an award-winning underwriting agency specialising in cyber insurance and digital risk solutions for organisations across Australia and New Zealand.” Source: RevenueBase Database · checked Sep 14, 2026
25	Wipro Shelde	Indirect evidence	Melbourne, AustraliaHQ checked Sep 14, 2026	51-200	47 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 14, 2026

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: cybersecurity 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 cybersecurity companies.
Partial evidence: Its own public description names part of cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity 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 1,009 cybersecurity companies based in Australia

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Cybersecurity companies based in Australia at a glance

As of Sep 14, 2026

45.2%Verified-email coverage

9.7Average contacts per company

1-10Median size (employees)

20.5%Largest-city concentration · Sydney

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

597

11-50

308

51-200

201-500

501-1,000

1,001-5,000

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 1,009 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 cybersecurity 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 “cybersecurity 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 cybersecurity 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 cybersecurity 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, 4,401 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 14, 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.

Cybersecurity companies by metro

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 1,009 cybersecurity companies based in Australia.

Which city has the most cybersecurity companies?

Sydney is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 9,747 professional contacts and 4,401 email addresses for the listed cybersecurity companies.

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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.