Company lists · Data refreshed September 2026

Top 25 Information security consulting services based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,245 companies tracked

RevenueBase identified 1,245 information security consulting services headquartered in Australia as of September 2026 and tracks 10,013 professional contacts across them, including 4,338 with verified work emails. Sydney is the largest hub.

This list covers information security consulting services headquartered in 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 28, 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 28, 2026 86% judged on-target in blind review

1,245Companies

10,013Contacts tracked

4,338Verified emails

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The 25 largest information security consulting services based in Australia

Ranked by team size

Top 25 of 1,245 information security consulting services based in Australia, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to information security consulting services: 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	Partial evidence	Coburg, AustraliaHQ checked Sep 28, 2026	201-500	352 contacts →
	Partial 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 28, 2026
2	Risk Associates - Emea & Asia	Partial evidence	Bella Vista, AustraliaHQ checked Sep 28, 2026	51-200	170 contacts →
	Partial evidence “Ensuring your business is handling cyber security risks effectively has never been more important.” Source: RevenueBase Database · checked Sep 28, 2026
3	Triskele Labs	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	123 contacts →
	Indirect evidence “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Source: RevenueBase Database · checked Sep 28, 2026
4	Renew IT	Partial evidence	Lane Cove West, AustraliaHQ checked Sep 28, 2026	51-200	115 contacts →
	Partial 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 28, 2026
5	Office Solutions IT	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 28, 2026	51-200	114 contacts →
	Indirect evidence “IT to smile about.” Source: RevenueBase Database · checked Sep 28, 2026
6	Gibson Quai International GQI	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
7	NEW ERA Technology AU	Partial evidence	Mascot, AustraliaHQ checked Sep 28, 2026	501-1,000	111 contacts →
	Partial evidence “New Era delivers Technology Solutions that securely connect people, places, and information in a rapidly changing digital world.” Source: RevenueBase Database · checked Sep 28, 2026
8	Sekuro	Partial evidence	AustraliaHQ checked Sep 28, 2026	51-200	104 contacts →
	Partial 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 28, 2026
9	Ever Nimble	Partial evidence	West Perth, AustraliaHQ checked Sep 28, 2026	51-200	102 contacts →
	Partial evidence “We are your IT & Cyber Security partners.” Source: RevenueBase Database · checked Sep 28, 2026
10	ARA Security	Partial evidence	Kingsgrove, AustraliaHQ checked Sep 28, 2026	201-500	101 contacts →
	Partial evidence “ARA Security delivers turnkey security solutions to a number of industries across Australia.” Source: RevenueBase Database · checked Sep 28, 2026
11	Kaine Mathrick Tech	Indirect evidence	Port Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	93 contacts →
	Indirect evidence “Australia’s cyber-first Managed Service Provider and true technology partner.” Source: RevenueBase Database · checked Sep 28, 2026
12	Business Aspect	Indirect evidence	Toowong, AustraliaHQ checked Sep 28, 2026	51-200	75 contacts →
	Indirect evidence “At Business Aspect, our promise to our clients is to always look at things from a ‘fresh perspective’ and to ensure our engagement with you is based on a clear understanding of…” Source: RevenueBase Database · checked Sep 28, 2026
13	Northbridge Systems	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	51-200	70 contacts →
	Partial 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 28, 2026
14	Swivel Tech	Indirect evidence	Cremorne, AustraliaHQ checked Sep 28, 2026	51-200	69 contacts →
	Indirect evidence “SwivelTech is all about pushing boundaries to bring you innovative, world-class software products and strategy consultation.” Source: RevenueBase Database · checked Sep 28, 2026
15	Skillfield	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
16	Ampion	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	501-1,000	61 contacts →
	Indirect evidence “Welcome to Ampion.” Source: RevenueBase Database · checked Sep 28, 2026
17	Ipsec PTY LTD	Strong evidence	Cremorne, AustraliaHQ checked Sep 28, 2026	11-50	57 contacts →
	Strong 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 28, 2026
18	Nextgen Identity PTY LTD	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	55 contacts →
	Partial evidence “NextGen Identity is a Boutique shop in the IAM & Cyber Security space.” Source: RevenueBase Database · checked Sep 28, 2026
19	KODEZ	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
20	Security Consulting Group PTY LTD SCG	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
21	Fortis Security	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial evidence “Welcome to Fortis Security, founded in September of 2013, Fortis has grown year on year with customer support.” Source: RevenueBase Database · checked Sep 28, 2026
22	Deploypartners	Indirect evidence	North Sydney, AustraliaHQ checked Sep 28, 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 28, 2026
23	Dimiya Tech	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
24	CT Group	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 28, 2026	51-200	46 contacts →
	Indirect evidence “At CT Group we provide reliable, innovative and effective technology support and solutions to the professional services sector.” Source: RevenueBase Database · checked Sep 28, 2026
25	Emerging IT	Indirect evidence	Mulgrave, AustraliaHQ checked Sep 28, 2026	51-200	46 contacts →
	Indirect evidence “Clarity in a complex world.” Source: RevenueBase Database · checked Sep 28, 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 services. 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 services.
Partial evidence: Its own public description names part of information security consulting services, 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 services. 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 1,245 information security consulting services based in Australia

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Information security consulting services based in Australia at a glance

As of Sep 28, 2026

43.3%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

19.5%Largest-city concentration · Sydney

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

832

11-50

317

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 1,245 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 services, 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 “information security consulting services”. 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 services), 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 services, 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, 4,338 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 28, 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 services by metro

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 services, 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 services are there based in Australia?

RevenueBase identified 1,245 information security consulting services headquartered in 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?

Centorrino Technologies, headquartered in Coburg, tops this list with the largest team on record.

Which city has the most information security consulting services?

Sydney leads with 243 headquartered companies, followed by Melbourne (237) and Brisbane (85).

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 4,338 verified decision-maker contacts tracked across these 1,245 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 28, 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.