Company lists · Data verified August 2026

Top 25 Cybersecurity and recovery firms based in Australia

Name: Cybersecurity and recovery firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 413 companies tracked

There are 413 cybersecurity and recovery firms headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 3,908 professional contacts across them, including 1,354 with verified work emails and 275 with mobile numbers. Sydney is the largest hub.

This list covers cybersecurity and recovery firms 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.

413Companies

3,908Contacts tracked

1,354Verified emails

275Mobile numbers

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The 25 largest cybersecurity and recovery firms based in Australia

Ranked by team size

Top 25 of 413 cybersecurity and recovery firms 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	PT Itsec Asia TBK	Melbourne	201-500	387	67
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	Aucyber	Fortitude Valley	51-200	105	5
6	Secutec	Sydney	51-200	102	37
7	Sekuro	n/a	51-200	100	70
8	Northbridge Systems	St Leonards	51-200	70	27
9	Entersoft Security	Brisbane	51-200	63	20
10	Ipsec PTY LTD	Cremorne	11-50	57	35
11	Deploypartners	North Sydney	51-200	51	24
12	Wipro Shelde	Melbourne	51-200	50	15
13	Emerging IT	Mulgrave	51-200	45	27
14	Slipstream Cyber	St Leonards	11-50	42	28
15	Vectra	Melbourne	51-200	42	19
16	Seccom Global	Sydney	11-50	41	30
17	Bluerydge	Fyshwick	51-200	39	28
18	Ionize	Canberra	51-200	34	26
19	OP Innovate	Canberra	11-50	34	21
20	Excite Cyber	North Sydney	11-50	31	18
21	Cybernara	Adelaide	11-50	29	5
22	Rightsec	Brisbane	11-50	19	10
23	GCIT	Burleigh Heads	11-50	19	8
24	NCC Group Apac	Sydney	1,001-5,000	18	8
25	Retrospect Labs	Melbourne	11-50	17	10

Showing 25 of 413 cybersecurity and recovery firms based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,354 reachable decision-makers.

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Cybersecurity and recovery firms based in Australia at a glance

As of Aug 28, 2026

1-10Median size (employees)

SydneyLargest hub · 89 HQs

275Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

250

11-50

123

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity and recovery firms by metro

Metro	Companies
Cybersecurity and recovery firms in Sydney	89
Cybersecurity and recovery firms in Melbourne	77
Cybersecurity and recovery firms in Brisbane	35
Cybersecurity and recovery firms in Canberra	24
Cybersecurity and recovery firms in Perth	22
Cybersecurity and recovery firms in Adelaide	15
Cybersecurity and recovery firms in Brisbane City	11

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 and recovery firms”, 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; 3 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 and recovery firms are there based in Australia?

There are 413 cybersecurity and recovery firms headquartered in Australia as of August 2026 (RevenueBase).

What is the largest company on this list?

PT Itsec Asia TBK, headquartered in Melbourne, tops this list with the largest team on record.

Which city has the most cybersecurity and recovery firms?

Sydney leads with 89 headquartered companies, followed by Melbourne (77) and Brisbane (35).

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 1,354 verified decision-maker contacts tracked across these 413 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.