Company lists · Data verified August 2026

Top 25 Cybersecurity threat detection companies based in Australia

Name: Cybersecurity threat detection companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 204 companies tracked

There are 204 cybersecurity threat detection companies headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 3,084 professional contacts across them, including 1,129 with verified work emails and 447 with mobile numbers. Sydney is the largest hub.

This list covers cybersecurity threat detection 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.

204Companies

3,084Contacts tracked

1,129Verified emails

447Mobile numbers

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The 25 largest cybersecurity threat detection companies based in Australia

Ranked by team size

Top 25 of 204 cybersecurity threat detection 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	Secureworks	Frenchs Forest	1,001-5,000	949	343
2	Webroot	Chatswood	501-1,000	199	75
3	Triskele Labs	Melbourne	51-200	123	89
4	RED Sift	Surry Hills	51-200	109	55
5	Secutec	Sydney	51-200	102	37
6	Northbridge Systems	St Leonards	51-200	70	27
7	Entersoft Security	Brisbane	51-200	63	20
8	E2e-Assure	Canberra	51-200	60	42
9	RED Piranha	Melbourne	51-200	58	41
10	Sekuro Asia	Brisbane	51-200	43	11
11	Slipstream Cyber	St Leonards	11-50	42	28
12	Ionize	Canberra	51-200	34	26
13	Terraeagle	Strathfield	11-50	34	3
14	NSB Cyber	Brisbane	11-50	30	19
15	Cybernara	Adelaide	11-50	29	5
16	Datcom Cloud	North Geelong	11-50	26	12
17	Threatdefence	Sydney	11-50	24	17
18	Threat Intelligence	Sydney	11-50	19	1
19	NCC Group Apac	Sydney	1,001-5,000	18	8
20	Cybersecon	Melbourne	11-50	18	6
21	Sinevis	n/a	11-50	17	6
22	Cube Cyber	Perth	11-50	16	13
23	Sentaris	Sydney	11-50	14	9
24	Spartans Security	Cremorne	11-50	14	8
25	Cosive	Melbourne	11-50	14	8

Showing 25 of 204 cybersecurity threat detection companies based in Australia

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Cybersecurity threat detection companies based in Australia at a glance

As of Aug 28, 2026

1-10Median size (employees)

SydneyLargest hub · 43 HQs

447Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

103

11-50

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity threat detection companies by metro

Metro	Companies
Cybersecurity threat detection companies in Sydney	43
Cybersecurity threat detection companies in Melbourne	35
Cybersecurity threat detection companies in Brisbane	19
Cybersecurity threat detection companies in Perth	12
Cybersecurity threat detection companies in Canberra	11
Cybersecurity threat detection companies in Adelaide	6
Cybersecurity threat detection companies in Brisbane City	5

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 “cybersecurity threat detection 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; 0 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 cybersecurity threat detection companies are there based in Australia?

There are 204 cybersecurity threat detection companies headquartered in Australia as of August 2026 (RevenueBase).

What is the largest company on this list?

Secureworks, headquartered in Frenchs Forest, tops this list with the largest team on record.

Which city has the most cybersecurity threat detection companies?

Sydney leads with 43 headquartered companies, followed by Melbourne (35) and Brisbane (19).

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 1,129 verified decision-maker contacts tracked across these 204 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.