Company lists · Data refreshed September 2026

Top 25 Cybersecurity firms based in Melbourne, Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 195 companies tracked

RevenueBase identified 195 cybersecurity firms headquartered in Melbourne, Australia as of September 2026 and tracks 2,567 professional contacts across them, including 1,172 with verified work emails and 124 with mobile numbers. Sydney is the largest hub.

This list covers cybersecurity firms headquartered in Melbourne, 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 10, 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 10, 2026 86% judged on-target in blind review

195Companies

2,567Contacts tracked

1,172Verified emails

124Mobile numbers

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The 25 largest cybersecurity firms based in Melbourne, Australia

Ranked by team size

Top 25 of 195 cybersecurity firms based in Melbourne, Australia, ranked by team size, largest first. Data refreshed Sep 10, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity firms: 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	Triskele Labs	Strong evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	51-200	123 contacts →
	Strong evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 10, 2026
2	Mossé Cyber Security Institute	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	n/a	86 contacts →
	Indirect evidence “Mossé Cyber Security Institute (MCSI) offers an in-demand education for cyber security professionals.” Source: RevenueBase Database · checked Sep 10, 2026
3	Skillfield	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 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 10, 2026
4	Ctrl Cyber	Strong evidence	Melbourne, AustraliaHQ checked Sep 10, 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 10, 2026
5	Dimiya Tech	Strong evidence	Melbourne, AustraliaHQ checked Sep 10, 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 10, 2026
6	Wipro Shelde	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 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 10, 2026
7	Phriendly Phishing	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	40 contacts →
	Indirect evidence “Phriendly Phishing combines human-first design with AI-driven intelligence to deliver measurable behaviour change and build cyber resilience.” Source: RevenueBase Database · checked Sep 10, 2026
8	Veroguard Systems PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	33 contacts →
	Indirect evidence “Would you, your company, your supply chain or Government like to change the game on cyber crime AND make it easier to enjoy digital services across the internet?” Source: RevenueBase Database · checked Sep 10, 2026
9	Borderless CS	Strong evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	26 contacts →
	Strong 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 10, 2026
10	Fortian	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	25 contacts →
	Indirect evidence “Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.” Source: RevenueBase Database · checked Sep 10, 2026
11	Tanto Security	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	19 contacts →
	Indirect evidence “We provide offensive cyber security services to world leading organisations.” Source: RevenueBase Database · checked Sep 10, 2026
12	Cybersecon	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	18 contacts →
	Indirect evidence “CyberSecOn is an Information security company with a presence in Australia, USA and India.” Source: RevenueBase Database · checked Sep 10, 2026
13	Phronesis Security	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	17 contacts →
	Indirect evidence “The ancient Greeks called using knowledge to achieve a practical good 'phronesis', or φρόνησῐς.” Source: RevenueBase Database · checked Sep 10, 2026
14	Tesserent Cyber Solutions By Thales	Strong evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	201-500	17 contacts →
	Strong evidence “Tesserent provides enterprise-grade, tailored cybersecurity solutions to mid sized and enterprise level organisations across all industries and all levels of government in…” Source: RevenueBase Database · checked Sep 10, 2026
15	Tekspace	Strong evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	15 contacts →
	Strong evidence “We use our hands-on, independent research to match you with the cybersecurity solution that will best achieve your goals.” Source: RevenueBase Database · checked Sep 10, 2026
16	Cosive	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	13 contacts →
	Indirect evidence “We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.” Source: RevenueBase Database · checked Sep 10, 2026
17	Elttam	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	12 contacts →
	Indirect evidence “Expert-led penetration testing, supported by AI-assisted analysis, to uncover real weaknesses and strengthen systems against real-world threats.” Source: RevenueBase Database · checked Sep 10, 2026
18	Forensic IT	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	12 contacts →
	Indirect evidence “Forensic IT is a specialised cyber security firm with expertise in Digital Forensics and Incident Response (DFIR), and securing Industrial Control Systems (CIS).” Source: RevenueBase Database · checked Sep 10, 2026
19	Secured Enterprise	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	51-200	12 contacts →
	Indirect evidence “Secured Enterprise is a globally recognized pioneer in online cyber security that collaborate with businesses in Australia, Europe, South Africa, North America, and New Zealand.” Source: RevenueBase Database · checked Sep 10, 2026
20	Cynch Security	Strong evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	1-10	10 contacts →
	Strong evidence “We are passionate about building a world where every business is resilient to cybersecurity risks, no matter what their size.” Source: RevenueBase Database · checked Sep 10, 2026
21	Built On IT	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	1-10	9 contacts →
	Indirect evidence “Managed technology solutions.” Source: RevenueBase Database · checked Sep 10, 2026
22	Myempire Group	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	9 contacts →
	Indirect evidence “We’re a team of seasoned Cyber Security Specialists operating in Australia and the UK who help scaling businesses mature their cyber security.” Source: RevenueBase Database · checked Sep 10, 2026
23	Capa Intelligence	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	1-10	8 contacts →
	Indirect evidence “CAPA is a cyber technology team that provides operational intelligence across electricity utilities, aggregators and related software supply chains.” Source: RevenueBase Database · checked Sep 10, 2026
24	Security Impossible	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	1-10	8 contacts →
	Indirect evidence “Cyber Range, SOC designing and implementation, risk and security assessment.” Source: RevenueBase Database · checked Sep 10, 2026
25	Shadowlens	Indirect evidence	Melbourne, AustraliaHQ checked Sep 10, 2026	11-50	6 contacts →
	Indirect evidence “ShadowLens is a cyber-security services and solutions provider that specialises in the synergy between users and data to protect digital information.” Source: RevenueBase Database · checked Sep 10, 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 firms. 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 firms.
Partial evidence: Its own public description names part of cybersecurity firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity firms. 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 195 cybersecurity firms based in Melbourne, Australia

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Cybersecurity firms based in Melbourne, Australia at a glance

As of Sep 10, 2026

45.7%Verified-email coverage

4.8%Mobile-number coverage

13.2Average contacts per company

1-10Median size (employees)

108.7%Largest-city concentration · Sydney

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

120

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

1,0830–30

8431–60

061–90

190–180

4180+

Company record updated

Median 59.0d

00–30

1,42331–60

76361–90

17890–180

203180+

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 firms, 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 Melbourne, Australia whose own description of what they do matches “cybersecurity firms”. 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 firms), 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 firms, and records with no verified work email. Companies headquartered outside Melbourne 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, 1,172 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 10, 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 firms by metro in Australia

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 cybersecurity firms, 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 cybersecurity firms are there based in Melbourne, Australia?

RevenueBase identified 195 cybersecurity firms headquartered in Melbourne, 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 cybersecurity firms?

Sydney leads with 212 headquartered companies, followed by Melbourne (197) and Brisbane (96).

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 1,172 verified decision-maker contacts tracked across these 195 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 10, 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 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.