Company lists · Data refreshed September 2026

Top 18 Healthcare cybersecurity firms based in Sydney, Australia

RevenueBase identified 37 company matches for healthcare cybersecurity firms associated with Sydney, Australia as of September 2026 and tracks 226 professional contacts across them, including 55 with verified work emails. Across Australia, Sydney is the largest hub for this category.

This list covers company matches for healthcare cybersecurity firms associated with Sydney, Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
37Companies
226Contacts tracked
55Verified emails
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The 18 largest healthcare cybersecurity firms based in Sydney, Australia

Ranked by team size
Top 18 of 37 company matches for healthcare cybersecurity firms based in Sydney, Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-5042 contacts →

Exact match

“GuardWare eliminates data theft once and for all - A fundamentally different approach to cyber security.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-5026 contacts →

Exact match

“Minimise the risk of a cybersecurity incident.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchSydney, AustraliaHQ recorded Sep 28, 20261,001-5,00018 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-5017 contacts →

Exact match

“CISO Online™ specialises in Cyber Security, Governance, Risk & Compliance (GRC), and Secure AI adoption for government agencies, large enterprises, and SMBs across Australia and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-5014 contacts →

Exact match

“Morrisec provides tailored security strategies and services that align with each company’s specific threat landscape, risk profile, and strategic goals.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-509 contacts →

Exact match

“CyberHub was established with the aim of making Cyber Security more available to companies of all sizes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchSydney, AustraliaHQ recorded Sep 28, 202651-2008 contacts →

Exact match

“ViCyber provides cyber loss prediction, risk quantification, cyber fix and insurance raising cyber health & awareness of businesses specifically for SMEs”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-507 contacts →

Exact match

“IQBOX helps you pinpoint your organization’s most pressing vulnerabilities, eliminate critical threats, and implement a security program that leaves you free to focus on…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Fort1: Comprehensive Cybersecurity Services based in Australia.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Who are NSAA Security NSAA Security team have years of experience working within highly demanding information security environments.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-105 contacts →

Exact match

“At D2UNet, we take a multi-faceted approach to cybersecurity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-104 contacts →

Exact match

“The term Centropy is a scientific reference to the reversal of chaos or entropy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-504 contacts →

Exact match

“At Renaissance IT, we provide cyber security consulting and training.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-102 contacts →

Exact match

“Imagine knowing your business, staff, and customers could be under threat.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchSydney, AustraliaHQ recorded Sep 28, 202611-502 contacts →

Exact match

“Pegasus Technology is on a mission to change the way businesses think about Cyber Security!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-102 contacts →

Exact match

“Advena is an emerging leader in software-driven intelligence and cybersecurity.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchSydney, AustraliaHQ recorded Sep 28, 20261-101 contacts →

Exact match

“CyberSecurity Driven, Business Focused.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 18 of 37 healthcare cybersecurity firms based in Sydney, Australia

See the full list, filter by size, metro and specialty, and access 55 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Healthcare cybersecurity firms based in Sydney, Australia at a glance

As of Sep 28, 2026
24.3%Verified-email coverage
6.1Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
15
51-200
1
1,001-5,000
1

Email recency for this list is measured across the whole Australia list rather than for Sydney, so it is reported there. Company counts and contact totals on this page are exact for Sydney, over 37 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Sydney, Australia whose business descriptions match “healthcare cybersecurity firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 55 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Healthcare cybersecurity firms by metro in Australia

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “healthcare cybersecurity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many healthcare cybersecurity firms are there based in Sydney, Australia?

RevenueBase identified 37 company matches for healthcare cybersecurity firms associated with Sydney, Australia as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Guardware Australia tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Australia has the most healthcare cybersecurity firms?

Sydney leads Australia with 37 company records, followed by Melbourne (33) and Brisbane (10).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 55 professional contacts with verified work emails tracked across these 37 companies; direct dials are available where recorded.

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 SmartSearch, 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.