Company lists · Data verified August 2026

Top 25 Data security companies based in Australia

Name: Data security companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 136 companies tracked

There are 136 data security companies headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 1,350 professional contacts across them, including 469 with verified work emails and 153 with mobile numbers. Melbourne is the largest hub.

This list covers data security companies headquartered in Australia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

136Companies

1,350Contacts tracked

469Verified emails

153Mobile numbers

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The 25 largest data security companies based in Australia

Ranked by team size

Top 25 of 136 data security companies based in Australia, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Webroot	Chatswood	501-1,000	199	75
2	Triskele Labs	Melbourne	51-200	123	89
3	Aucyber	Fortitude Valley	51-200	105	5
4	Archtis	Barton	51-200	58	40
5	Wipro Shelde	Melbourne	51-200	50	15
6	Vectra	Melbourne	51-200	42	19
7	Guardware Australia	Sydney	11-50	41	1
8	Ionize	Canberra	51-200	34	26
9	Datcom Cloud	North Geelong	11-50	26	12
10	Wontok	Pyrmont	51-200	20	6
11	Rowe Consulting Identity Security	Sydney	11-50	19	13
12	Cybersecon	Melbourne	11-50	18	6
13	Zynet PTY LTD	Tullamarine	11-50	17	9
14	Sinevis	n/a	11-50	17	6
15	Cocoon Data	Sydney	11-50	16	12
16	Diesec	Sydney	51-200	15	9
17	Spartans Security	Cremorne	11-50	14	8
18	Cleared	Canberra	11-50	11	9
19	IT First Responder	Castle Hill	11-50	11	8
20	Zirilio	Melbourne	11-50	10	6
21	Sententia PTY LTD	Surry Hills	11-50	10	5
22	Cyber Audit Team	South East Queensland	11-50	10	5
23	Cyberhub Group	Sydney	11-50	9	3
24	Databl	Perth	11-50	6	5
25	Shadowlens	Melbourne	11-50	6	4

Showing 25 of 136 data security companies based in Australia

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Data security companies based in Australia at a glance

As of Aug 28, 2026

1-10Median size (employees)

MelbourneLargest hub · 32 HQs

153Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Data security companies by metro

Metro	Companies
Data security companies in Melbourne	32
Data security companies in Sydney	26
Data security companies in Perth	10
Data security companies in Canberra	6
Data security companies in Adelaide	3
Data security companies in Brisbane	3
Data security companies in Chatswood	3

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “data security companies”, with match quality audited by blind human judging, and headquartered in Australia.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many data security companies are there based in Australia?

There are 136 data security companies headquartered in Australia as of August 2026 (RevenueBase).

What is the largest company on this list?

Webroot, headquartered in Chatswood, tops this list with the largest team on record.

Which city has the most data security companies?

Melbourne leads with 32 headquartered companies, followed by Sydney (26) and Perth (10).

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 469 verified decision-maker contacts tracked across these 136 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.