Company lists · Data refreshed September 2026

Top 14 Data privacy companies based in Australia

RevenueBase identified 35 data privacy companies headquartered in Australia as of September 2026 and tracks 215 professional contacts across them, including 82 with verified work emails and 31 with mobile numbers. Melbourne is the largest hub.

This list covers data privacy 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
35Companies
215Contacts tracked
82Verified emails
31Mobile numbers
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The 14 largest data privacy companies based in Australia

Ranked by team size
Top 14 of 35 data privacy 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 data privacy 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 evidenceSydney, AustraliaHQ checked Sep 7, 202611-5042 contacts →

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

Source: company website · checked Sep 7, 2026
2Partial evidenceMelbourne, AustraliaHQ checked Sep 7, 202611-5012 contacts →

“The experts at handling sensitive data, we use our expertise to help organisations win the trust of their customers.”

Source: company website · checked Sep 7, 2026
3Strong evidenceLindfield, AustraliaHQ checked Sep 7, 20261-1010 contacts →

“At AdFixus, we believe that everyone has the right to privacy and control over their personal data.”

Source: company website · checked Sep 7, 2026
4Partial evidenceMelbourne, AustraliaHQ checked Sep 7, 202611-507 contacts →

“A minefield of new and growing data regulation laws are being introduced globally, on a daily basis.”

Source: company website · checked Sep 7, 2026
5Indirect evidenceMelbourne, AustraliaHQ checked Sep 7, 20261-105 contacts →

“Manage your digital footprint and reduce your risk of identity theft by up to 70%.”

Source: company website · checked Sep 7, 2026
6Strong evidenceSouth Melbourne, AustraliaHQ checked Sep 7, 20261-105 contacts →

“We help manage and share private data, preventing data breaches.”

Source: company website · checked Sep 7, 2026
7Indirect evidenceSydney, AustraliaHQ checked Sep 7, 20261-105 contacts →

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

Source: company website · checked Sep 7, 2026
8Indirect evidenceHeathcote, AustraliaHQ checked Sep 7, 20261-104 contacts →

“Designing IT Solutions is a software design and product company.”

Source: company website · checked Sep 7, 2026
9Partial evidenceCanberra, AustraliaHQ checked Sep 7, 20261-103 contacts →

“Most data breaches don't start with a hacker.”

Source: company website · checked Sep 7, 2026
10Indirect evidenceMelbourne, AustraliaHQ checked Sep 7, 20261-103 contacts →

“In a world where the digital landscape is constantly evolving and cyber threats are becoming increasingly sophisticated, it's crucial for organizations to be proactive in…”

Source: company website · checked Sep 7, 2026
11Indirect evidenceChatswood, AustraliaHQ checked Sep 7, 20261-102 contacts →

“Adapting Technology to suit your Business The most common situation we deal with today, is securing businesses after COVID and securing a business with remote workers.”

Source: company website · checked Sep 7, 2026
12Indirect evidenceMelbourne, AustraliaHQ checked Sep 7, 20261-102 contacts →

“Magnitude 8 works alongside our clients to deliver secure Information Technology solutions.”

Source: company website · checked Sep 7, 2026
13Indirect evidenceSydney, AustraliaHQ checked Sep 7, 20261-102 contacts →

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

Source: company website · checked Sep 7, 2026
14Partial evidenceMilton, AustraliaHQ checked Sep 7, 20261-101 contacts →

“While access to patient information is based on a users role, HealthTrack also provides an audit process to determine who has accessed data and tracks changes.”

Source: company website · checked Sep 7, 2026

Showing 14 of 35 data privacy companies based in Australia

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Data privacy companies based in Australia at a glance

As of Sep 7, 2026
38.1%Verified-email coverage
14.4%Mobile-number coverage
6.1Average contacts per company
1-10Median size (employees)
20.0%Largest-city concentration · Melbourne
Sep 7, 2026Page data refreshed

Companies by employee count

1-10
26
11-50
8
51-200
1

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 data privacy 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 “data privacy 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 data privacy 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 data privacy 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, 82 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.

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 data privacy 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 data privacy companies are there based in Australia?

RevenueBase identified 35 data privacy 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?

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

Which city has the most data privacy companies?

Melbourne leads with 7 headquartered companies, followed by Sydney (7) and Brisbane (3).

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 82 verified decision-maker contacts tracked across these 35 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.