Company lists · Data verified August 2026

Top 25 Computer security companies based in Australia

Name: Computer 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 131 companies tracked

There are 131 computer security companies headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 1,368 professional contacts across them, including 554 with verified work emails and 146 with mobile numbers. Melbourne is the largest hub.

This list covers computer 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.

131Companies

1,368Contacts tracked

554Verified emails

146Mobile numbers

Unlock all 131 companies Free account · no credit card · 2 minutes

The 25 largest computer security companies based in Australia

Ranked by team size

Top 25 of 131 computer 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	RED Sift	Surry Hills	51-200	109	55
3	ARA Security	Wangara	201-500	105	69
4	RED Piranha	Melbourne	51-200	58	41
5	Sekuro Asia	Brisbane	51-200	43	11
6	Slipstream Cyber	St Leonards	11-50	42	28
7	Seccom Global	Sydney	11-50	41	30
8	Ionize	Canberra	51-200	34	26
9	CSO Group	Sydney	11-50	29	20
10	Fortian	Sydney	11-50	26	20
11	Borderless CS	Sydney	11-50	25	5
12	Wontok	Pyrmont	51-200	20	6
13	CBR Cyber A Brennan Company	Forrest	11-50	19	19
14	Surecity Networks	South Melbourne	11-50	19	12
15	Cybersecon	Melbourne	11-50	18	6
16	Spartans Security	Cremorne	11-50	14	8
17	Link Enterprise Solutions - Link	Eagle Farm	51-200	14	7
18	Secgenx	n/a	11-50	14	6
19	Eset Australia	Melbourne	11-50	13	9
20	Cleared	Canberra	11-50	11	9
21	Networx Australia	Waterloo	11-50	11	5
22	Datasec Solutions PTY LTD	Nunawading	11-50	10	6
23	Zirilio	Melbourne	11-50	10	6
24	Cyber Audit Team	South East Queensland	11-50	10	5
25	Cyberhub Group	Sydney	11-50	9	3

Showing 25 of 131 computer security companies based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 554 reachable decision-makers.

Free account · no credit card

See all 131 companies

Computer security companies based in Australia at a glance

As of Aug 28, 2026

11-50Median size (employees)

MelbourneLargest hub · 29 HQs

146Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Computer security companies by metro

Metro	Companies
Computer security companies in Melbourne	29
Computer security companies in Sydney	28
Computer security companies in Brisbane	8
Computer security companies in Perth	5
Computer security companies in Brisbane City	4
Computer security companies in Adelaide	3
Computer security companies in South Melbourne	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 “computer 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; 2 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 computer security companies are there based in Australia?

There are 131 computer 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 computer security companies?

Melbourne leads with 29 headquartered companies, followed by Sydney (28) and Brisbane (8).

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 554 verified decision-maker contacts tracked across these 131 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.

Ready to reach these companies? Verified emails and direct dials for all 131 computer security companies based in Australia. Start with a free account, no credit card.

Get the full list

Related lists

Computer security companies by geography

Browse the directory

Browse: Companies home · All Australia lists · All Computer security companies lists · New lists

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.