Company lists · Data refreshed September 2026

Top 25 Cybersecurity consultancies based in Melbourne, Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 383 companies tracked

RevenueBase identified 383 cybersecurity consultancies headquartered in Melbourne, Australia as of September 2026 and tracks 3,971 professional contacts across them, including 1,710 with verified work emails. Across Australia, Sydney is the largest hub for this category (408 companies); Melbourne follows with 383.

This list covers cybersecurity consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

383Companies

3,971Contacts tracked

1,710Verified emails

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The 25 largest cybersecurity consultancies based in Melbourne, Australia

Ranked by team size

Top 25 of 383 cybersecurity consultancies based in Melbourne, Australia, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity consultancies: 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	CPT Global	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	154 contacts →
	Indirect evidence “CPT Global is your independent partner for achieving peak IT performance.” Source: RevenueBase Database · checked Sep 24, 2026
2	Triskele Labs	Partial evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	123 contacts →
	Partial evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 24, 2026
3	Gibson Quai International GQI	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	113 contacts →
	Indirect evidence “Your Trusted Partner in Digital Transformation and Communications Technology 30 Years of Innovation And Expertise GQI has been a trusted advisor and professional services provider…” Source: RevenueBase Database · checked Sep 24, 2026
4	Onestep Group	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	113 contacts →
	Indirect evidence “OneStep Group is Australia’s trusted leader in ICT, cyber security, and Microsoft solutions.” Source: RevenueBase Database · checked Sep 24, 2026
5	Mossé Cyber Security Institute	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 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 24, 2026
6	Skillfield	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 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 24, 2026
7	Ampion	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	501-1,000	61 contacts →
	Indirect evidence “Welcome to Ampion.” Source: RevenueBase Database · checked Sep 24, 2026
8	Nextgen Identity PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	11-50	55 contacts →
	Indirect evidence “NextGen Identity is a Boutique shop in the IAM & Cyber Security space.” Source: RevenueBase Database · checked Sep 24, 2026
9	KODEZ	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	11-50	54 contacts →
	Indirect evidence “At Kodez, we empower organisations of all sizes to deliver secure, high-impact digital outcomes through a blend of consulting, advisory, delivery, and managed services.” Source: RevenueBase Database · checked Sep 24, 2026
10	Ctrl Cyber	Partial evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	54 contacts →
	Partial 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 24, 2026
11	Security Consulting Group PTY LTD SCG	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	52 contacts →
	Indirect 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 24, 2026
12	Dimiya Tech	Partial evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	50 contacts →
	Partial 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 24, 2026
13	Phriendly Phishing	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 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 24, 2026
14	Affinity MSP	Partial evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	38 contacts →
	Partial evidence “Affinity MSP is consistently recognised among the best MSPs in Australia, delivering Managed IT Support, cybersecurity, and cloud services to businesses nationwide.” Source: RevenueBase Database · checked Sep 24, 2026
15	IPP Consulting PTY LTD	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	51-200	37 contacts →
	Indirect evidence “SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Source: RevenueBase Database · checked Sep 24, 2026
16	Mantel Group	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	501-1,000	35 contacts →
	Indirect evidence “We harness technologies that transform business operations in the real world.” Source: RevenueBase Database · checked Sep 24, 2026
17	Digital Frontier Partners	Partial evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	11-50	30 contacts →
	Partial evidence “Digital Frontier Partners is a trusted advisory firm that specialises in helping organisations harness the power of digital transformation, IT strategy, and cybersecurity.” Source: RevenueBase Database · checked Sep 24, 2026
18	Blubiz Solutions	Partial evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	11-50	28 contacts →
	Partial evidence “Welcome to BluBiz Solutions, an award-winning ICT Solutions and Managed Services provider with multi-domain expertise in Enterprise Networking, Cybersecurity, Cloud…” Source: RevenueBase Database · checked Sep 24, 2026
19	Borderless CS	Partial evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	11-50	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 24, 2026
20	Fortian	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 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 24, 2026
21	Csw-It	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	11-50	23 contacts →
	Indirect evidence “CSW-IT is a fast-paced, dynamic business that prides itself on building and nurturing business relationships with valued partners and customers alike.” Source: RevenueBase Database · checked Sep 24, 2026
22	Protecq ICT Solutions	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	11-50	21 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
23	Tanto Security	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 2026	11-50	19 contacts →
	Indirect evidence “We provide offensive cyber security services to world leading organisations.” Source: RevenueBase Database · checked Sep 24, 2026
24	Cybersecon	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 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 24, 2026
25	Phronesis Security	Indirect evidence	Melbourne, AustraliaHQ checked Sep 24, 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 24, 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 consultancies. 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 consultancies.
Partial evidence: Its own public description names part of cybersecurity consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity consultancies. 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 383 cybersecurity consultancies based in Melbourne, Australia

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Cybersecurity consultancies based in Melbourne, Australia at a glance

As of Sep 24, 2026

43.1%Verified-email coverage

10.4Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

248

11-50

51-200

201-500

501-1,000

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 383 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 consultancies, 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 consultancies”. 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 consultancies), 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 consultancies, 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, 1,710 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 24, 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 consultancies 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 consultancies, 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 consultancies are there based in Melbourne, Australia?

RevenueBase identified 383 cybersecurity consultancies 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?

CPT Global, headquartered in Melbourne, tops this list with the largest team on record.

Which city in Australia has the most cybersecurity consultancies?

Sydney leads Australia with 408 headquartered companies, followed by Melbourne (383) and Brisbane (144).

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 1,710 verified decision-maker contacts tracked across these 383 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 24, 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.