Company lists · Data refreshed September 2026

Top 23 Threat intelligence service providers based in Australia

RevenueBase identified 324 threat intelligence service providers headquartered in Australia as of September 2026 and tracks 2,872 professional contacts across them, including 1,094 with verified work emails. Sydney is the largest hub.

This list covers threat intelligence service providers 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 22, 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 22, 2026 86% judged on-target in blind review
324Companies
2,872Contacts tracked
1,094Verified emails
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The 23 largest threat intelligence service providers based in Australia

Ranked by team size
Top 23 of 324 threat intelligence service providers based in Australia, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to threat intelligence service providers: 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 22, 202651-200137 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceMelbourne, AustraliaHQ checked Sep 22, 202651-200123 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceAustraliaHQ checked Sep 22, 202651-200104 contacts →

Indirect 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 22, 2026
4Partial evidenceCremorne, AustraliaHQ checked Sep 22, 202611-5057 contacts →

Partial 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 22, 2026
5Indirect evidenceMelbourne, AustraliaHQ checked Sep 22, 202651-20050 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 22, 2026
6Indirect evidenceMulgrave, AustraliaHQ checked Sep 22, 202651-20046 contacts →

Indirect evidence

“Clarity in a complex world.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceAdelaide, AustraliaHQ checked Sep 22, 202651-20042 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceSydney, AustraliaHQ checked Sep 22, 202611-5041 contacts →

Indirect 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 22, 2026
9Indirect evidenceCanberra, AustraliaHQ checked Sep 22, 202651-20035 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceSydney, AustraliaHQ checked Sep 22, 202611-5033 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceBrisbane, AustraliaHQ checked Sep 22, 202611-5032 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
12Partial evidenceSydney, AustraliaHQ checked Sep 22, 202611-5031 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceSydney, AustraliaHQ checked Sep 22, 202611-5026 contacts →

Indirect evidence

“Minimise the risk of a cybersecurity incident.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceCanberra, AustraliaHQ checked Sep 22, 202651-20026 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 22, 2026
15Indirect evidenceMelbourne, AustraliaHQ checked Sep 22, 202611-5025 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceSydney, AustraliaHQ checked Sep 22, 202611-5025 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
17Strong evidenceMaroochydore, AustraliaHQ checked Sep 22, 202611-5023 contacts →

Strong evidence

“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: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceSouth Melbourne, AustraliaHQ checked Sep 22, 202611-5020 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 22, 2026
19Indirect evidenceMelbourne, AustraliaHQ checked Sep 22, 202651-20020 contacts →

Indirect evidence

“OMEN provides specialist security solutions across a broad range of industries, including aviation and other critical infrastructure.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceSydney, AustraliaHQ checked Sep 22, 20261-1019 contacts →

Indirect evidence

“Razilio is a Sydney, Australia-based boutique cybersecurity consultancy that simplifies the management of cyber risk for businesses of all sizes.”

Source: RevenueBase Database · checked Sep 22, 2026
21Strong evidenceSydney, AustraliaHQ checked Sep 22, 202611-5019 contacts →

Strong evidence

Threat Intelligence is different.”

Source: RevenueBase Database · checked Sep 22, 2026
22Indirect evidenceSydney, AustraliaHQ checked Sep 22, 20261,001-5,00018 contacts →

Indirect evidence

“NCC Group exists to make the world safer and more secure.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceSouth Yarra, AustraliaHQ checked Sep 22, 202611-5018 contacts →

Indirect evidence

“SIS Industrial Cyber Security protects what the world depends on but rarely sees.”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 23 of 324 threat intelligence service providers based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,094 reachable decision-makers.

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Threat intelligence service providers based in Australia at a glance

As of Sep 22, 2026
38.1%Verified-email coverage
8.9Average contacts per company
1-10Median size (employees)
21.9%Largest-city concentration · Sydney
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
195
11-50
101
51-200
22
201-500
4
1,001-5,000
2

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 324 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 threat intelligence service providers, 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 “threat intelligence service providers”. 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 threat intelligence service providers), 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 threat intelligence service providers, 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, 1,094 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 22, 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.

Threat intelligence service providers by metro

  • Threat intelligence service providers in Sydney71
  • Threat intelligence service providers in Melbourne68

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 threat intelligence service providers, 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 threat intelligence service providers are there based in Australia?

RevenueBase identified 324 threat intelligence service providers 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 threat intelligence service providers?

Sydney leads with 71 headquartered companies, followed by Melbourne (68) and Perth (20).

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 1,094 verified decision-maker contacts tracked across these 324 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 22, 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.