Company lists · Data verified August 2026

Top 25 Cybersecurity for city infrastructure based in Australia

Name: Cybersecurity for city infrastructure 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 cybersecurity for city infrastructure headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 1,642 professional contacts across them, including 547 with verified work emails and 61 with mobile numbers. Melbourne is the largest hub.

This list covers cybersecurity for city infrastructure 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

1,642Contacts tracked

547Verified emails

61Mobile numbers

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The 25 largest cybersecurity for city infrastructure based in Australia

Ranked by team size

Top 25 of 131 cybersecurity for city infrastructure 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	Triskele Labs	Melbourne	51-200	123	89
3	Secutec	Sydney	51-200	102	37
4	Northbridge Systems	St Leonards	51-200	70	27
5	Ipsec PTY LTD	Cremorne	11-50	57	35
6	Wipro Shelde	Melbourne	51-200	50	15
7	Emerging IT	Mulgrave	51-200	45	27
8	Sekuro Asia	Brisbane	51-200	43	11
9	Slipstream Cyber	St Leonards	11-50	42	28
10	Softel Systems	Melbourne	11-50	38	26
11	Cyberxcel	Brisbane	n/a	33	1
12	NSB Cyber	Brisbane	11-50	30	19
13	Datcom Cloud	North Geelong	11-50	26	12
14	Surecity Networks	South Melbourne	11-50	19	12
15	Zynet PTY LTD	Tullamarine	11-50	17	9
16	Sinevis	n/a	11-50	17	6
17	Sentaris	Sydney	11-50	14	9
18	Spartans Security	Cremorne	11-50	14	8
19	Cleared	Canberra	11-50	11	9
20	Cognitio Digital	Brisbane	11-50	11	9
21	IT First Responder	Castle Hill	11-50	11	8
22	Cyberhub Group	Sydney	11-50	9	3
23	Cyber Ethos	Queensland	1-10	9	3
24	Solis Security Australia	Bundall	11-50	8	6
25	Shadowsafe	Woolloongabba	1-10	8	4

Showing 25 of 131 cybersecurity for city infrastructure based in Australia

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Cybersecurity for city infrastructure based in Australia at a glance

As of Aug 28, 2026

1-10Median size (employees)

MelbourneLargest hub · 28 HQs

61Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Cybersecurity for city infrastructure by metro

Metro	Companies
Cybersecurity for city infrastructure in Melbourne	28
Cybersecurity for city infrastructure in Sydney	25
Cybersecurity for city infrastructure in Brisbane	14
Cybersecurity for city infrastructure in Canberra	7
Cybersecurity for city infrastructure in Perth	7
Cybersecurity for city infrastructure in St Leonards	2
Cybersecurity for city infrastructure in Adelaide	2
Cybersecurity for city infrastructure in Joondalup	2

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 for city infrastructure”, 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 cybersecurity for city infrastructure are there based in Australia?

There are 131 cybersecurity for city infrastructure 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 for city infrastructure?

Melbourne leads with 28 headquartered companies, followed by Sydney (25) and Brisbane (14).

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 547 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.

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Cybersecurity for city infrastructure by geography

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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.