Company lists · Data verified August 2026

Top 25 AI cybersecurity companies based in Sydney, Australia

Name: AI cybersecurity companies based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 69 companies tracked

There are 69 AI cybersecurity companies headquartered in Sydney, Australia (RevenueBase, August 2026). RevenueBase tracks 592 professional contacts across them, including 214 with verified work emails and 23 with mobile numbers. Sydney is the largest hub.

This list covers AI cybersecurity companies headquartered in Sydney, 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.

69Companies

592Contacts tracked

214Verified emails

23Mobile numbers

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The 25 largest AI cybersecurity companies based in Sydney, Australia

Ranked by team size

Top 25 of 69 AI cybersecurity companies based in Sydney, 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	Secutec	Sydney	51-200	102	37
2	Seccom Global	Sydney	11-50	41	30
3	Plerion	Sydney	11-50	38	18
4	NUEVA	Sydney	51-200	30	15
5	CSO Group	Sydney	11-50	29	20
6	Gridware	Sydney	11-50	25	10
7	Beyond Data	Sydney	11-50	25	8
8	Borderless CS	Sydney	11-50	25	5
9	Threatdefence	Sydney	11-50	24	17
10	Threat Intelligence	Sydney	11-50	19	1
11	NCC Group Apac	Sydney	1,001-5,000	18	8
12	Intrix Cyber Security	Sydney	11-50	16	6
13	Cybermate	Sydney	11-50	13	2
14	Cyberhub Group	Sydney	11-50	9	3
15	Revio Cyber Security	Sydney	11-50	7	6
16	DVULN	Sydney	1-10	7	4
17	Iqbox PTY LTD	Sydney	11-50	7	1
18	Cyberai	Sydney	11-50	6	4
19	D2unet PTY LTD	Sydney	1-10	6	2
20	Fort1 PTY LTD	Sydney	1-10	5	2
21	Cyber Citadel	Sydney	1-10	5	2
22	CYBIZ	Sydney	1-10	4	4
23	Sense Of Security	Sydney	11-50	3	1
24	Cyberheuristic	Sydney	1-10	2	1
25	Cyber Advisory Practice	Sydney	1-10	2	1

Showing 25 of 69 AI cybersecurity companies based in Sydney, Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 214 reachable decision-makers.

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AI cybersecurity companies based in Sydney, Australia at a glance

As of Aug 28, 2026

11-50Median size (employees)

SydneyLargest hub · 69 HQs

23Contacts 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

AI cybersecurity companies by metro in Australia

Metro	Companies
AI cybersecurity companies in Sydney	69
AI cybersecurity companies in Melbourne	51
AI cybersecurity companies in Brisbane	25
AI cybersecurity companies in Canberra	16
AI cybersecurity companies in Perth	13
AI cybersecurity companies in Brisbane City	10
AI cybersecurity companies in Adelaide	10

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 “AI cybersecurity companies”, with match quality audited by blind human judging, and headquartered in Sydney, 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 AI cybersecurity companies are there based in Sydney, Australia?

There are 69 AI cybersecurity companies headquartered in Sydney, Australia as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most AI cybersecurity companies?

Sydney leads with 69 headquartered companies, followed by Melbourne (51) and Brisbane (25).

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 214 verified decision-maker contacts tracked across these 69 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.