Company lists · Data refreshed September 2026

Top 25 IT security staffing firms based in Australia

Name: IT security staffing firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 204 companies tracked

RevenueBase identified 204 IT security staffing firms headquartered in Australia as of September 2026 and tracks 1,573 professional contacts across them, including 569 with verified work emails. Melbourne is the largest hub.

This list covers IT security staffing firms 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

204Companies

1,573Contacts tracked

569Verified emails

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The 25 largest IT security staffing firms based in Australia

Ranked by team size

Top 25 of 204 IT security staffing firms 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 IT security staffing 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	Interpro	Indirect evidence	Sydney, AustraliaHQ checked Sep 28, 2026	n/a	153 contacts →
	Indirect evidence “Interpro has been in the Australian market for over 30 years and has established a reputation for providing bespoke, value add consultative services to both clients and candidates.” Source: RevenueBase Database · checked Sep 28, 2026
2	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
3	Dimiya Tech	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
4	Wipro Shelde	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
5	Exclaim IT	Indirect evidence	Brisbane, AustraliaHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “We strive to provide our clients, contractors and candidates with consistently outstanding experiences and build working relationships that continue many years after initial…” Source: RevenueBase Database · checked Sep 28, 2026
6	Seccom Global	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	11-50	41 contacts →
	Partial evidence “Seccom Global - The Cyber Security Company Providing excellence in service to educate, connect and protect your business Founded in 2003, Seccom Global is recognised as a leader…” Source: RevenueBase Database · checked Sep 28, 2026
7	Bluerydge	Indirect evidence	Fyshwick, AustraliaHQ checked Sep 28, 2026	51-200	41 contacts →
	Indirect evidence “Bluerydge delivers mission-secure capability, specialising in Cybersecurity, Technology, Artificial Intelligence (AI), and Robotics.” Source: RevenueBase Database · checked Sep 28, 2026
8	Astralas	Indirect evidence	Cremorne, AustraliaHQ checked Sep 28, 2026	51-200	35 contacts →
	Indirect evidence “Good people solving important problems.” Source: RevenueBase Database · checked Sep 28, 2026
9	Supporthub360	Indirect evidence	Perth, AustraliaHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “Where do you go for the right technology, solutions, and the right talent?” Source: RevenueBase Database · checked Sep 28, 2026
10	Fortian	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 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 28, 2026
11	Surecity Networks	Indirect evidence	South Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “SureCity Networks is an Australian Cybersecurity firm with offices in Melbourne, Sydney, Brisbane and the UK, trusted by enterprises globally.” Source: RevenueBase Database · checked Sep 28, 2026
12	GCIT	Strong evidence	Burleigh Heads, AustraliaHQ checked Sep 28, 2026	11-50	19 contacts →
	Strong evidence “Based on the Gold Coast, GCIT provides IT security and managed services across Australia.” Source: RevenueBase Database · checked Sep 28, 2026
13	ARXIS	Indirect evidence	Adelaide, AustraliaHQ checked Sep 28, 2026	11-50	18 contacts →
	Indirect evidence “Arxis' mission is to secure our clients’ technology and empower their business.” Source: RevenueBase Database · checked Sep 28, 2026
14	Cybersecon	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “CyberSecOn is an Information security company with a presence in Australia, USA and India.” Source: RevenueBase Database · checked Sep 28, 2026
15	Decipher Bureau	Indirect evidence	AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Powered by Experience.” Source: RevenueBase Database · checked Sep 28, 2026
16	Security Centric	Partial evidence	Sydney Cbd, AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial evidence “Security Centric is a boutique specialist information security consulting and services organisation.” Source: RevenueBase Database · checked Sep 28, 2026
17	Zynet PTY LTD	Strong evidence	Tullamarine, AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Strong evidence “Zynet is an Australian cyber security and IT services provider with more than 25 years of experience protecting organisations and keeping critical systems running.” Source: RevenueBase Database · checked Sep 28, 2026
18	Circuit Recruitment Group	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “With a focus on providing tailored and effective recruitment solutions, Circuit stands out as a leading Australian-owned agency specialising in technology recruitment.” Source: RevenueBase Database · checked Sep 28, 2026
19	Morfit Group Consulting	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	51-200	15 contacts →
	Partial evidence “Morfit Group Consulting is a pure IT Consulting and Professional Services organisation.” Source: RevenueBase Database · checked Sep 28, 2026
20	Mercury Information Security Services	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1-10	14 contacts →
	Partial evidence “Our mission is to provide organisations with a comprehensive, world class range of customised information security services and advice which will enable them to secure and protect…” Source: RevenueBase Database · checked Sep 28, 2026
21	Sentaris	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “Sentaris (a certified B Corporation) is an Australian security services provider specialising in cyber assurance and incident response services.” Source: RevenueBase Database · checked Sep 28, 2026
22	Spartans Security	Indirect evidence	Cremorne, AustraliaHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Facing the Complexities of Cybersecurity?” Source: RevenueBase Database · checked Sep 28, 2026
23	Morrisec	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “Morrisec provides tailored security strategies and services that align with each company’s specific threat landscape, risk profile, and strategic goals.” Source: RevenueBase Database · checked Sep 28, 2026
24	IT First Responder	Indirect evidence	Castle Hill, AustraliaHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “First responders.” Source: RevenueBase Database · checked Sep 28, 2026
25	E2 Cyber	Partial evidence	Cremorne, AustraliaHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Rest easy knowing that whilst you focus on defending and improving Australia’s cyber security posture, e2 Cyber is focused on building trusted and valued relationships across the…” 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: IT security staffing 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 IT security staffing firms.
Partial evidence: Its own public description names part of IT security staffing firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name IT security staffing 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 204 IT security staffing firms based in Australia

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IT security staffing firms based in Australia at a glance

As of Sep 28, 2026

36.2%Verified-email coverage

7.7Average contacts per company

1-10Median size (employees)

27.0%Largest-city concentration · Melbourne

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

119

11-50

51-200

201-500

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 204 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 IT security staffing 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 Australia whose own description of what they do matches “IT security staffing 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 IT security staffing 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 IT security staffing firms, 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, 569 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.

IT security staffing firms 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 IT security staffing 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 IT security staffing firms are there based in Australia?

RevenueBase identified 204 IT security staffing firms 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?

Interpro, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most IT security staffing firms?

Melbourne leads with 55 headquartered companies, followed by Sydney (47) and Canberra (13).

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 569 verified decision-maker contacts tracked across these 204 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.