Company lists · Data verified August 2026

Top 25 Data center security system companies based in Australia

Name: Data center security system companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 261 companies tracked

There are 261 data center security system companies headquartered in Australia (RevenueBase, August 2026). RevenueBase tracks 2,052 professional contacts across them, including 523 with verified work emails and 108 with mobile numbers. Sydney is the largest hub.

This list covers data center security system 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.

261Companies

2,052Contacts tracked

523Verified emails

108Mobile numbers

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The 25 largest data center security system companies based in Australia

Ranked by team size

Top 25 of 261 data center security system 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	ADT Security Australia	Rydalmere	501-1,000	179	37
2	ARA Security	Wangara	201-500	105	69
3	AG Security Group	Canberra	51-200	72	22
4	Signal Security	Melbourne	11-50	69	4
5	Seme Solutions	Albion	51-200	67	20
6	Inner Range Australia & NEW Zealand	Melbourne	51-200	54	38
7	Leader Security Electronics	Mitchell	51-200	45	9
8	Security1 S1	Phillip	51-200	33	8
9	AVA Group	Mulgrave	51-200	28	14
10	Eclipse Security Systems	Hallam	11-50	26	7
11	Group 1 Security	Sydney	201-500	25	2
12	Crown Security	Perth	11-50	23	5
13	ISCS	Gold Coast	11-50	22	14
14	Total Security Systems	Canning Vale	11-50	22	8
15	Smokeshield Security	Springvale	11-50	21	10
16	AMA Security	Adelaide	51-200	21	3
17	Advanced Security Group	Tamworth	11-50	19	2
18	Prosys	Sydney	51-200	15	4
19	Excell Security	Altona North	51-200	15	1
20	Secure People	Bella Vista	11-50	15	1
21	BJ Systems	Wangara	51-200	14	13
22	Link Enterprise Solutions - Link	Eagle Farm	51-200	14	7
23	Securetel Security Integrators	Keilor Park	51-200	13	8
24	Martine Massih	Sydney	51-200	13	2
25	Ryalex Security	Illawarra	11-50	12	8

Showing 25 of 261 data center security system companies based in Australia

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Data center security system companies based in Australia at a glance

As of Aug 28, 2026

11-50Median size (employees)

SydneyLargest hub · 23 HQs

108Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

126

11-50

51-200

201-500

501-1,000

10001+

Data center security system companies by metro

Metro	Companies
Data center security system companies in Sydney	23
Data center security system companies in Melbourne	21
Data center security system companies in Brisbane	9
Data center security system companies in Adelaide	8
Data center security system companies in Gold Coast	6
Data center security system companies in Port Melbourne	3
Data center security system companies in Keilor Park	3

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 “data center security system 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; 0 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 data center security system companies are there based in Australia?

There are 261 data center security system companies headquartered in Australia as of August 2026 (RevenueBase).

What is the largest company on this list?

ADT Security Australia, headquartered in Rydalmere, tops this list with the largest team on record.

Which city has the most data center security system companies?

Sydney leads with 23 headquartered companies, followed by Melbourne (21) and Brisbane (9).

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 523 verified decision-maker contacts tracked across these 261 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.