Company lists · Data refreshed October 2026

Top 25 Cybersecurity companies based in Melbourne, Australia

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 189 companies tracked

Our directory lists 189 cybersecurity companies based in Melbourne, Australia, with 2,474 professional contacts and 1,178 email addresses. The list was last updated in October 2026. Across Australia, Sydney is the largest hub for this category (207 companies); Melbourne follows with 189.

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 October 1, 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 Oct 1, 2026 86% judged on-target in blind review

189Companies

2,474Contacts tracked

1,178Verified emails

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The 25 largest cybersecurity companies based in Melbourne, Australia

Ranked by team size

Top 25 of 189 cybersecurity companies based in Melbourne, Australia, ranked by team size, largest first. Data refreshed Oct 1, 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	Triskele Labs	Strong evidence	Melbourne, AustraliaHQ checked Oct 1, 2026	51-200	123 contacts →
	Strong evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Oct 1, 2026
2	Skillfield	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
3	Ctrl Cyber	Strong evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
4	Dimiya Tech	Strong evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
5	Wipro Shelde	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
6	Phriendly Phishing	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
7	Veroguard Systems PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
8	Borderless CS	Strong evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
9	Fortian	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
10	DULL	Strong evidence	Melbourne, AustraliaHQ checked Oct 1, 2026	11-50	20 contacts →
	Strong evidence “Dull is an Australian cybersecurity company focused on providing Zero Trust Network Access solutions for operational technology (OT) devices, systems, and applications.” Source: RevenueBase Database · checked Oct 1, 2026
11	Tanto Security	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 2026	11-50	19 contacts →
	Indirect evidence “We provide offensive cyber security services to world leading organisations.” Source: RevenueBase Database · checked Oct 1, 2026
12	Cybersecon	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
13	Phronesis Security	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
14	Tesserent Cyber Solutions By Thales	Strong evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
15	Eb2bcom	Strong evidence	Melbourne, AustraliaHQ checked Oct 1, 2026	11-50	14 contacts →
	Strong evidence “At EB2BCOM, we pride ourselves on being a trusted provider of top-notch Cybersecurity, IAM, and Zero Trust solutions for businesses throughout the Asia Pacific.” Source: RevenueBase Database · checked Oct 1, 2026
16	Cosive	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
17	Elttam	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
18	Forensic IT	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
19	Secured Enterprise	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
20	Cynch Security	Strong evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
21	Built On IT	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 2026	1-10	9 contacts →
	Indirect evidence “Managed technology solutions.” Source: RevenueBase Database · checked Oct 1, 2026
22	Myempire Group	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
23	Capa Intelligence	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 2026
24	Security Impossible	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 2026	1-10	8 contacts →
	Indirect evidence “Cyber Range, SOC designing and implementation, risk and security assessment.” Source: RevenueBase Database · checked Oct 1, 2026
25	Shadowlens	Indirect evidence	Melbourne, AustraliaHQ checked Oct 1, 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 Oct 1, 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 189 cybersecurity companies based in Melbourne, Australia

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Cybersecurity companies based in Melbourne, Australia at a glance

As of Oct 1, 2026

47.6%Verified-email coverage

13.1Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

115

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole Australia list rather than for Melbourne, so it is reported there. Company counts and contact totals on this page are exact for Melbourne, over 189 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 Melbourne, 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 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, 1,178 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 October 1, 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 in Australia

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 189 cybersecurity companies based in Melbourne, Australia.

Which city in Australia has the most cybersecurity companies?

Sydney leads Australia with 207 headquartered companies, followed by Melbourne (189) and Brisbane (84).

How many contacts are available for cybersecurity companies?

The directory includes 2,474 professional contacts and 1,178 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.