Company lists · Data refreshed September 2026

Top 25 Cyber threat intelligence companies based in Australia

RevenueBase identified 313 cyber threat intelligence companies headquartered in Australia as of September 2026 and tracks 2,878 professional contacts across them, including 1,085 with verified work emails and 156 with mobile numbers. Sydney is the largest hub.

This list covers cyber threat intelligence companies 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 7, 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 7, 2026 86% judged on-target in blind review
313Companies
2,878Contacts tracked
1,085Verified emails
156Mobile numbers
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The 25 largest cyber threat intelligence companies based in Australia

Ranked by team size
Top 25 of 313 cyber threat intelligence companies based in Australia, ranked by team size, largest first. Data refreshed Sep 7, 2026. RevenueBase Smart Search rates how each company's information relates to cyber threat intelligence 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAdelaide, AustraliaHQ checked Sep 7, 202651-200137 contacts →

“Fivecast delivers open-source intelligence solutions built for clarity, powered by AI, and trusted to surface what matters.”

Source: company website · checked Sep 7, 2026
2Indirect evidenceMelbourne, AustraliaHQ checked Sep 7, 202651-200123 contacts →

“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.”

Source: company website · checked Sep 7, 2026
3Partial evidenceSydney, AustraliaHQ checked Sep 7, 2026201-500122 contacts →

“Infotrust (ITS) is Australia’s leading cyber security and managed technology services provider listed on the ASX.”

Source: company website · checked Sep 7, 2026
4Partial evidenceAustraliaHQ checked Sep 7, 202651-200104 contacts →

“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: company website · checked Sep 7, 2026
5Indirect evidenceMacquarie Park, AustraliaHQ checked Sep 7, 202651-20072 contacts →

“At StickmanCyber we are on a mission to create a digital world that is safe for everyone.”

Source: company website · checked Sep 7, 2026
6Strong evidenceCremorne, AustraliaHQ checked Sep 7, 202611-5057 contacts →

“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: company website · checked Sep 7, 2026
7Indirect evidenceMelbourne, AustraliaHQ checked Sep 7, 202651-20050 contacts →

“DIMIYA Tech is a Melbourne, Australia based- global Cybersecurity and IT services provider supporting organizations that require secure, scalable, and high-performance technology…”

Source: company website · checked Sep 7, 2026
8Strong evidenceMelbourne, AustraliaHQ checked Sep 7, 202651-20047 contacts →

“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: company website · checked Sep 7, 2026
9Indirect evidenceMulgrave, AustraliaHQ checked Sep 7, 202651-20046 contacts →

“Clarity in a complex world.”

Source: company website · checked Sep 7, 2026
10Indirect evidenceNorth Sydney, AustraliaHQ checked Sep 7, 202651-20042 contacts →

“FirstWave is a global cybersecurity technology company formed in 2004.”

Source: company website · checked Sep 7, 2026
11Indirect evidenceAdelaide, AustraliaHQ checked Sep 7, 202651-20042 contacts →

“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.”

Source: company website · checked Sep 7, 2026
12Partial evidenceSydney, AustraliaHQ checked Sep 7, 202611-5041 contacts →

“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: company website · checked Sep 7, 2026
13Indirect evidenceCanberra, AustraliaHQ checked Sep 7, 202651-20035 contacts →

“When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.”

Source: company website · checked Sep 7, 2026
14Partial evidenceSydney, AustraliaHQ checked Sep 7, 202611-5033 contacts →

“NSB Cyber is an Australian-founded, privately owned cyber security company based in Sydney.”

Source: company website · checked Sep 7, 2026
15Partial evidenceBrisbane, AustraliaHQ checked Sep 7, 202611-5032 contacts →

“Division 5 is focused on building long-term relationships with our clients as their trusted cyber security advisor.”

Source: company website · checked Sep 7, 2026
16Strong evidenceSydney, AustraliaHQ checked Sep 7, 202611-5031 contacts →

“CSO Group provides ICT security services and solutions to protect Australian businesses from advanced cyber threats.”

Source: company website · checked Sep 7, 2026
17Indirect evidenceSydney, AustraliaHQ checked Sep 7, 202611-5026 contacts →

“Minimise the risk of a cybersecurity incident.”

Source: company website · checked Sep 7, 2026
18Indirect evidenceMelbourne, AustraliaHQ checked Sep 7, 202611-5026 contacts →

“About Us - Australia’s leading cybersecurity specialist, delivering comprehensive protection by Australian-based consultants only-no offshore teams- 100% cybersecurity-focused…”

Source: company website · checked Sep 7, 2026
19Indirect evidenceCanberra, AustraliaHQ checked Sep 7, 202651-20026 contacts →

“Muttii is a global leader in AI-powered cybersecurity, providing the essential cybersecurity platform to secure organisations today and for an ever-changing future.”

Source: company website · checked Sep 7, 2026
20Partial evidenceMelbourne, AustraliaHQ checked Sep 7, 202611-5025 contacts →

“Fortian is a leading Australian company specialising in cyber security, privacy, and technology risk management.”

Source: company website · checked Sep 7, 2026
21Indirect evidenceSydney, AustraliaHQ checked Sep 7, 202611-5025 contacts →

“For most organisations in Australia, a data breach can be more than a PR disaster, it could be the final chapter.”

Source: company website · checked Sep 7, 2026
22Strong evidenceSydney, AustraliaHQ checked Sep 7, 202611-5024 contacts →

ThreatDefence provides innovative Security Operations and cyber defence solutions to MSPs and Enterprises.”

Source: company website · checked Sep 7, 2026
23Strong evidenceMaroochydore, AustraliaHQ checked Sep 7, 202611-5023 contacts →

“CI-ISAC Australia (CI-ISAC) is Australia's only cross-sector cyber threat intelligence sharing organisation for critical infrastructure, and one of the first of its kind in the…”

Source: company website · checked Sep 7, 2026
24Indirect evidenceForrest, AustraliaHQ checked Sep 7, 202611-5019 contacts →

“We are Canberra's newest Cybersecurity company focusing on solutions for information security, connectivity and cloud technologies.”

Source: company website · checked Sep 7, 2026
25Partial evidenceCanberra, AustraliaHQ checked Sep 7, 202611-5019 contacts →

“Test, Measure, and Benchmark Cyber Workforce Capability in Real-Time What Does FIFTH DOMAIN Do?”

Source: company website · checked Sep 7, 2026

Showing 25 of 313 cyber threat intelligence companies based in Australia

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Cyber threat intelligence companies based in Australia at a glance

As of Sep 7, 2026
37.7%Verified-email coverage
5.4%Mobile-number coverage
9.2Average contacts per company
1-10Median size (employees)
21.7%Largest-city concentration · Sydney
Sep 7, 2026Page data refreshed

Companies by employee count

1-10
181
11-50
104
51-200
20
201-500
6
1,001-5,000
2

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 cyber threat intelligence 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 Australia whose own description of what they do matches “cyber threat intelligence 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 cyber threat intelligence 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 cyber threat intelligence companies, 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, 1,085 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 7, 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.

Cyber threat intelligence companies by metro

  • Cyber threat intelligence companies in Sydney68
  • Cyber threat intelligence companies in Melbourne66

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 cyber threat intelligence 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 cyber threat intelligence companies are there based in Australia?

RevenueBase identified 313 cyber threat intelligence companies 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?

Fivecast, headquartered in Adelaide, tops this list with the largest team on record.

Which city has the most cyber threat intelligence companies?

Sydney leads with 68 headquartered companies, followed by Melbourne (66) and Brisbane (21).

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 1,085 verified decision-maker contacts tracked across these 313 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 7, 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.