Company lists · Data refreshed September 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 Data refreshed Sep 1, 2026 591 companies tracked

RevenueBase identified 591 cyber-physical security companies headquartered in Australia as of September 2026 and 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

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 refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cyber-physical security companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	NEC Australia	Indirect evidence	Sydney, Australia	501-1,000	867 contacts →
	Indirect evidence “NEC has delivered world-class technology solutions and services to customers across the globe, for more than a century.” Source: RevenueBase Database · checked Sep 1, 2026
2	SNP Security	Partial evidence	West Ryde, Australia	1,001-5,000	508 contacts →
	Partial evidence “Founded in 1923, SNP is one of Australia’s leading security services providers with over 2,500 employees nationwide.” Source: RevenueBase Database · checked Sep 1, 2026
3	PT Itsec Asia TBK	Indirect evidence	Melbourne, Australia	201-500	387 contacts →
	Indirect evidence “ITSEC Asia is a leading cybersecurity company in Indonesia, listed on the Indonesian Stock Exchange (“CYBR”), with over 400 employees across five countries.” Source: RevenueBase Database · checked Sep 1, 2026
4	Webroot	Indirect evidence	Chatswood, Australia	501-1,000	199 contacts →
	Indirect evidence “Webroot, an OpenText company, was the first to harness the cloud and artificial intelligence to stop zero-day threats in real time.” Source: RevenueBase Database · checked Sep 1, 2026
5	ADT Security Australia	Indirect evidence	Rydalmere, Australia	501-1,000	179 contacts →
	Indirect evidence “For more than 130 years, we have stood alongside our community, protecting homes, families, businesses, and communities.” Source: RevenueBase Database · checked Sep 1, 2026
6	Optic Security Group	Partial evidence	Broome, Australia	201-500	122 contacts →
	Partial evidence “Optic Security Group is a leading provider of converged security risk management solutions serving the needs of corporate, enterprise, and government clients across Australia and…” Source: RevenueBase Database · checked Sep 1, 2026
7	ARA Security	Partial evidence	Wangara, Australia	201-500	105 contacts →
	Partial evidence “ARA Security delivers turnkey security solutions to a number of industries across Australia.” Source: RevenueBase Database · checked Sep 1, 2026
8	Ultimate Security Australia	Partial evidence	Concord, Australia	501-1,000	91 contacts →
	Partial evidence “Ultimate Security Australia is a premier provider of integrated security solutions, committed to safeguarding communities and empowering both individuals and organisations across…” Source: RevenueBase Database · checked Sep 1, 2026
9	Secom Technical Services PTY LTD	Partial evidence	Canberra Airport, Australia	51-200	87 contacts →
	Partial evidence “Secom delivers electronic security solutions for commercial, industrial, and government clients throughout Australia.” Source: RevenueBase Database · checked Sep 1, 2026
10	National Protective Services	Partial evidence	South Melbourne, Australia	1,001-5,000	81 contacts →
	Partial evidence “National Protective Services is a leading professional security company, specialising in the provision of quality and tailored protective services and products to ensure optimum…” Source: RevenueBase Database · checked Sep 1, 2026
11	AG Security Group	Partial evidence	Canberra, Australia	51-200	72 contacts →
	Partial evidence “AG Security Group is South Australia's leading and largest locally owned security organisation that has been protecting Australians for more than 35 years.” Source: RevenueBase Database · checked Sep 1, 2026
12	Northbridge Systems	Partial evidence	St Leonards, Australia	51-200	70 contacts →
	Partial evidence “Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Source: RevenueBase Database · checked Sep 1, 2026
13	Seme Solutions	Partial evidence	Albion, Australia	51-200	67 contacts →
	Partial evidence “SEME Solutions have been one of Australia’s leading provider of security solutions for over 50 years, specialising in the integration of CCTV, Access Control, Intruder Detection…” Source: RevenueBase Database · checked Sep 1, 2026
14	Sturdie	Partial evidence	Footscray, Australia	51-200	64 contacts →
	Partial evidence “Established in 2006, Sturdie has grown to become one of the most respected providers of high-quality electrical services and security technology in Australia and New Zealand.” Source: RevenueBase Database · checked Sep 1, 2026
15	CLD Physical Security Systems	Strong evidence	Sydney Olympic Park, Australia	51-200	63 contacts →
	Strong evidence “We are a globally recognised leader in design-led physical security solutions.” Source: RevenueBase Database · checked Sep 1, 2026
16	RED Piranha	Partial evidence	Melbourne, Australia	51-200	58 contacts →
	Partial evidence “Australia’s leading developer and manufacturer of advanced cybersecurity technology, Red Piranha delivers next-generation cyber defence solutions designed to protect modern…” Source: RevenueBase Database · checked Sep 1, 2026
17	Exec Security	Partial evidence	Melbourne, Australia	501-1,000	58 contacts →
	Partial evidence “Guarding Solutions \| Armed Guards \| 24/7 Grade A1 Monitoring \| Mobile Patrols \| Electronics \| Advisory EXEC Security is an Australian owned, national company that specialises in…” Source: RevenueBase Database · checked Sep 1, 2026
18	Inner Range Australia & NEW Zealand	Partial evidence	Melbourne, Australia	51-200	54 contacts →
	Partial evidence “Inner Range is a manufacturer of integrated Video, Access Control and Security solutions.” Source: RevenueBase Database · checked Sep 1, 2026
19	Ruswin	Partial evidence	Rockhampton, Australia	51-200	53 contacts →
	Partial evidence “RUSWIN specialises in integrated electronic security, locksmithing, and hardware solutions for commercial, industrial, and residential clients across North Queensland and beyond.” Source: RevenueBase Database · checked Sep 1, 2026
20	DAS	Partial evidence	Moonah, Australia	51-200	43 contacts →
	Partial evidence “DAS (Dicker Access and Surveillance) is Australia's leading value-added distributor of integrated security solutions.” Source: RevenueBase Database · checked Sep 1, 2026
21	Sekuro Asia	Partial evidence	Brisbane, Australia	51-200	43 contacts →
	Partial evidence “Sekuro is a leading global cybersecurity provider that helps clients and partners strategically mitigate cyber risks and build resilient businesses.” Source: RevenueBase Database · checked Sep 1, 2026
22	Bsms Security	Partial evidence	Lane Cove West, Australia	201-500	39 contacts →
	Partial evidence “BSMS Security is a leading integrated security solutions provider in Australia.” Source: RevenueBase Database · checked Sep 1, 2026
23	Astralas	Indirect evidence	Cremorne, Australia	51-200	35 contacts →
	Indirect evidence “Good people solving important problems.” Source: RevenueBase Database · checked Sep 1, 2026
24	H3c Plus	Partial evidence	Phillip, Australia	51-200	34 contacts →
	Partial evidence “The Team at H3C Plus have been providing Security Solutions for 10 years and have over 50 years of combined expertise in the Electronic Security Industry.” Source: RevenueBase Database · checked Sep 1, 2026
25	Ionize	Partial evidence	Canberra, Australia	51-200	34 contacts →
	Partial evidence “When it comes to security there's no shortage of companies ready to tell you about your vulnerabilities.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cyber-physical security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cyber-physical security companies.
Partial evidence: Its own public description names part of cyber-physical security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cyber-physical security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

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 Sep 1, 2026

28.8%Verified-email coverage

4.8%Mobile-number coverage

15.5Average contacts per company

11-50Median size (employees)

10.5%Largest-city concentration · Melbourne

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

263

11-50

196

51-200

201-500

501-1,000

1,001-5,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cyber-physical security companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Australia whose own description of what they do matches “cyber-physical security companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cyber-physical security companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cyber-physical security companies, and records with no verified work email. Companies headquartered outside Australia are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 2,644 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cyber-physical security companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cyber-physical security companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cyber-physical security companies are there based in Australia?

RevenueBase identified 591 cyber-physical security companies headquartered in Australia as of September 2026, matched on each company's own description of what it does rather than its industry code.

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 refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.