Company lists · Data verified August 2026

Top 25 Cyber-physical security companies based in Australia

Name: Cyber-physical 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 591 companies tracked

There are 591 cyber-physical security companies headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 9,183 professional contacts across them, including 2,644 with verified work emails and 442 with mobile numbers. Melbourne is the largest hub.

This list covers cyber-physical 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.

591Companies

9,183Contacts tracked

2,644Verified emails

442Mobile numbers

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The 25 largest cyber-physical security companies based in Australia

Ranked by team size

Top 25 of 591 cyber-physical 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	NEC Australia	Sydney	501-1,000	867	326
2	SNP Security	West Ryde	1,001-5,000	508	61
3	PT Itsec Asia TBK	Melbourne	201-500	387	67
4	Webroot	Chatswood	501-1,000	199	75
5	ADT Security Australia	Rydalmere	501-1,000	179	37
6	Optic Security Group	Broome	201-500	122	92
7	ARA Security	Wangara	201-500	105	69
8	Ultimate Security Australia	Concord	501-1,000	91	34
9	Secom Technical Services PTY LTD	Canberra Airport	51-200	87	64
10	National Protective Services	South Melbourne	1,001-5,000	81	3
11	AG Security Group	Canberra	51-200	72	22
12	Northbridge Systems	St Leonards	51-200	70	27
13	Seme Solutions	Albion	51-200	67	20
14	Sturdie	Footscray	51-200	64	43
15	CLD Physical Security Systems	Sydney Olympic Park	51-200	63	11
16	RED Piranha	Melbourne	51-200	58	41
17	Exec Security	Melbourne	501-1,000	58	21
18	Inner Range Australia & NEW Zealand	Melbourne	51-200	54	38
19	Ruswin	Rockhampton	51-200	53	13
20	DAS	Moonah	51-200	43	33
21	Sekuro Asia	Brisbane	51-200	43	11
22	Bsms Security	Lane Cove West	201-500	39	8
23	Astralas	Cremorne	51-200	35	20
24	H3c Plus	Phillip	51-200	34	29
25	Ionize	Canberra	51-200	34	26

Showing 25 of 591 cyber-physical security companies based in Australia

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Cyber-physical security companies based in Australia at a glance

As of Aug 28, 2026

11-50Median size (employees)

MelbourneLargest hub · 62 HQs

442Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

263

11-50

196

51-200

201-500

501-1,000

1,001-5,000

10001+

Cyber-physical security companies by metro

Metro	Companies
Cyber-physical security companies in Melbourne	62
Cyber-physical security companies in Sydney	59
Cyber-physical security companies in Brisbane	27
Cyber-physical security companies in Perth	21
Cyber-physical security companies in Adelaide	12
Cyber-physical security companies in Canberra	10
Cyber-physical security companies in Gold Coast	8

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 “cyber-physical 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; 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 cyber-physical security companies are there based in Australia?

There are 591 cyber-physical security companies headquartered in Australia as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most cyber-physical security companies?

Melbourne leads with 62 headquartered companies, followed by Sydney (59) and Brisbane (27).

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 2,644 verified decision-maker contacts tracked across these 591 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.