Company lists · Data refreshed September 2026

Top 25 Information security consulting companies based in Melbourne, Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 178 companies tracked

RevenueBase identified 178 information security consulting companies headquartered in Melbourne, Australia as of September 2026 and tracks 2,643 professional contacts across them, including 1,277 with verified work emails. Sydney is the largest hub.

This list covers information security consulting companies 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

178Companies

2,643Contacts tracked

1,277Verified emails

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The 25 largest information security consulting companies based in Melbourne, Australia

Ranked by team size

Top 25 of 178 information security consulting companies based in Melbourne, Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to information security consulting 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	CPT Global	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	154 contacts →
	Indirect evidence “CPT Global is your independent partner for achieving peak IT performance.” Source: RevenueBase Database · checked Sep 21, 2026
2	Triskele Labs	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	123 contacts →
	Indirect evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 21, 2026
3	Skillfield	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	62 contacts →
	Partial evidence “Skillfield is a Melbourne-born Cyber Security, AI and big data solutions provider and professional services consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
4	Ampion	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	501-1,000	61 contacts →
	Indirect evidence “Welcome to Ampion.” Source: RevenueBase Database · checked Sep 21, 2026
5	KODEZ	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	54 contacts →
	Partial 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 21, 2026
6	Ctrl Cyber	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	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, 2026
7	Security Consulting Group PTY LTD SCG	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	52 contacts →
	Partial 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, 2026
8	Dimiya Tech	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	50 contacts →
	Indirect 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 21, 2026
9	Digital Frontier Partners	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	30 contacts →
	Indirect 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 21, 2026
10	Borderless CS	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	26 contacts →
	Indirect 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, 2026
11	Fortian	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	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, 2026
12	Cybersecon	Strong evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	18 contacts →
	Strong evidence “CyberSecOn is an Information security company with a presence in Australia, USA and India.” Source: RevenueBase Database · checked Sep 21, 2026
13	Grc360	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	17 contacts →
	Indirect evidence “GRC360 Pvt.” Source: RevenueBase Database · checked Sep 21, 2026
14	Morfit Group Consulting	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	15 contacts →
	Partial evidence “Morfit Group Consulting is a pure IT Consulting and Professional Services organisation.” Source: RevenueBase Database · checked Sep 21, 2026
15	Cosive	Strong evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	13 contacts →
	Strong 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 21, 2026
16	Forensic IT	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	12 contacts →
	Partial 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 21, 2026
17	Covaler	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “The experts at handling sensitive data, we use our expertise to help organisations win the trust of their customers.” Source: RevenueBase Database · checked Sep 21, 2026
18	Secured Enterprise	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	12 contacts →
	Partial 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 21, 2026
19	Cyberrisk	Strong evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	11 contacts →
	Strong evidence “Information security and technology risk management consulting - at CyberRisk we design, implement and operate information security programs to allow you to reduce and manage your…” Source: RevenueBase Database · checked Sep 21, 2026
20	Syber Services	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “As an Australian based cyber security partner, we work with enterprises to protect what matters most and stay ahead of evolving threats.” Source: RevenueBase Database · checked Sep 21, 2026
21	Cynch Security	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	1-10	10 contacts →
	Indirect 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 21, 2026
22	Built On IT	Indirect evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	1-10	9 contacts →
	Indirect evidence “Managed technology solutions.” Source: RevenueBase Database · checked Sep 21, 2026
23	Solstas	Strong evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	8 contacts →
	Strong evidence “SOLSTAS is an expert information safety and security consultancy dedicated to providing a seamless data experience for all workplaces now and into the future.” Source: RevenueBase Database · checked Sep 21, 2026
24	Keytrust	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	11-50	8 contacts →
	Partial evidence “KeyTrust is a leading IT Security Provider delivering complete Trusted e-Business Solutions to Corporate and Government sectors.” Source: RevenueBase Database · checked Sep 21, 2026
25	Security Impossible	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	1-10	8 contacts →
	Partial evidence “Cyber Range, SOC designing and implementation, risk and security assessment.” Source: RevenueBase Database · checked Sep 21, 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: information security consulting 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 information security consulting companies.
Partial evidence: Its own public description names part of information security consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name information security consulting 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 178 information security consulting companies based in Melbourne, Australia

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Information security consulting companies based in Melbourne, Australia at a glance

As of Sep 21, 2026

48.3%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

114.0%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

116

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 178 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 information security consulting 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 “information security consulting 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 information security consulting 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 information security consulting 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, 1,277 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.

Information security consulting companies by metro in Australia

Information security consulting companies in Sydney203
Information security consulting companies in Melbourne178
Information security consulting companies in Brisbane71
Information security consulting companies in Canberra59
Information security consulting companies in Perth38
Information security consulting companies in Adelaide32

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 information security consulting 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 information security consulting companies are there based in Melbourne, Australia?

RevenueBase identified 178 information security consulting companies 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 has the most information security consulting companies?

Sydney leads with 203 headquartered companies, followed by Melbourne (178) and Brisbane (71).

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 1,277 verified decision-maker contacts tracked across these 178 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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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.