Company lists · Data refreshed October 2026

Top 22 Data security service providers based in Sydney, Australia

RevenueBase identified 48 company matches for data security service providers associated with Sydney, Australia as of October 2026 and tracks 342 professional contacts across them, including 140 with verified work emails. Across Australia, Melbourne is the largest hub for this category (62 companies); Sydney follows with 48.

This list covers company matches for data security service providers 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 October 1, 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 Oct 1, 2026 How this list was built
48Companies
342Contacts tracked
140Verified emails
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The 22 largest data security service providers based in Sydney, Australia

Ranked by team size
Top 22 of 48 company matches for data security service providers based in Sydney, Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
2Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-5041 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-5033 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchSydney, AustraliaHQ recorded Oct 1, 202651-20030 contacts →

Exact match

“At Nueva, we aim to create a safer digital environment by providing innovative and customised cybersecurity solutions for our clients.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-5026 contacts →

Exact match

“Minimise the risk of a cybersecurity incident.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-5019 contacts →

Exact match

“Rowe Consulting delivers identity security technology and advisory services to corporate and government organisations across Australia and New Zealand.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-5016 contacts →

Exact match

“Intrix Cyber Security protect businesses with our Information Security Services.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchSydney, AustraliaHQ recorded Oct 1, 20261-1014 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchSydney, AustraliaHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
10Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“With ZIRILIO on your side, the digital world just became safer.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchSydney, AustraliaHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
12Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-506 contacts →

Exact match

“CyberPulse partners with organisations to operationalise security across the full threat lifecycle, from governance and compliance through to detection, response, and continuous…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchSydney, AustraliaHQ recorded Oct 1, 20261-105 contacts →

Exact match

“Fort1: Comprehensive Cybersecurity Services based in Australia.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchSydney, AustraliaHQ recorded Oct 1, 20261-105 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchSydney, AustraliaHQ recorded Oct 1, 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 · Oct 1, 2026 · View company records in RevenueBase
16Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-504 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchSydney, AustraliaHQ recorded Oct 1, 202611-503 contacts →

Exact match

“Provides complete IT cloud and data security solutions”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchSydney, AustraliaHQ recorded Oct 1, 20261-102 contacts →

Exact match

“Aurian is a leading provider of information security services in Australia.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchSydney, AustraliaHQ recorded Oct 1, 20261-102 contacts →

Exact match

“We want to help customers profit from cyber risk.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchSydney, AustraliaHQ recorded Oct 1, 20261-102 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchSydney, AustraliaHQ recorded Oct 1, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 22 of 48 data security service providers based in Sydney, Australia

See the full list, filter by size, metro and specialty, and access 140 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Data security service providers based in Sydney, Australia at a glance

As of Oct 1, 2026
40.9%Verified-email coverage
7.1Average contacts per company
11-50Median size (employees)
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
21
51-200
3
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 48 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 “data security service providers” 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 140 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 October 1, 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.

Data security service providers 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 “data security service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data security service providers are there based in Sydney, Australia?

RevenueBase identified 48 company matches for data security service providers associated with Sydney, Australia as of October 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 data security service providers?

Melbourne leads Australia with 62 company records, followed by Sydney (48) and Brisbane (13).

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 140 professional contacts with verified work emails tracked across these 48 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 October 1, 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.