Company lists · Data refreshed September 2026

Top 25 Residential security companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 309 companies tracked

RevenueBase identified 309 residential security companies headquartered in Australia as of September 2026 and tracks 1,971 professional contacts across them, including 457 with verified work emails and 120 with mobile numbers. Sydney is the largest hub.

This list covers residential 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

309Companies

1,971Contacts tracked

457Verified emails

120Mobile numbers

Explore all 309 companies → Free signup · no credit card · 500 free credits

The 25 largest residential security companies based in Australia

Ranked by team size

Top 25 of 309 residential security companies based in Australia, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names residential security companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Securitas AustraliaPartial evidence	Preston, AustraliaHQ checked Sep 5, 2026	10001+	228
	“We know how to offer the most effective security to our customers.” Source: company website · checked Sep 5, 2026
2	ADT Security AustraliaIndirect evidence	Rydalmere, AustraliaHQ checked Sep 5, 2026	501-1,000	178
	“For more than 130 years, we have stood alongside our community, protecting homes, families, businesses, and communities.” Source: company website · checked Sep 5, 2026
3	Monjon AustraliaStrong evidence	Cheltenham, AustraliaHQ checked Sep 5, 2026	201-500	64
	“Monjon (Australia) Pty Ltd (Monjon) is a family owned business with over two decades of experience in the provision of security risk management solutions for residential…” Source: company website · checked Sep 5, 2026
4	Idetect GroupIndirect evidence	Melbourne, AustraliaHQ checked Sep 5, 2026	51-200	34
	“iDetect is proudly Australian owned and operated with a focus on supporting the needs of the building and construction industries throughout Australia.” Source: company website · checked Sep 5, 2026
5	Security1 S1Partial evidence	Phillip, AustraliaHQ checked Sep 5, 2026	51-200	33
	“Security 1 was established as a separate entity in 2001 as the electronic and manpower section of the Newham group which has operated one of the nations leading Locksmith company…” Source: company website · checked Sep 5, 2026
6	Oscar Security Group PTY LTDPartial evidence	Chipping Norton, AustraliaHQ checked Sep 5, 2026	51-200	28
	“Welcome to Oscar Security Group - Your Safety, Our Top Priority We pride ourselves on our people-centric approach, we set the standard for the customer experience by taking…” Source: company website · checked Sep 5, 2026
7	Group 1 SecurityIndirect evidence	Sydney, AustraliaHQ checked Sep 5, 2026	201-500	25
	“FreeCall 1800 GROUP 1.” Source: company website · checked Sep 5, 2026
8	Exact SecurityPartial evidence	Jamisontown, AustraliaHQ checked Sep 5, 2026	51-200	23
	“Exact is focused on being the leader in the quality sector of the security industry - highly respected by regulators, clients and their customers, government bodies and police.” Source: company website · checked Sep 5, 2026
9	Total Security SystemsPartial evidence	Canning Vale, AustraliaHQ checked Sep 5, 2026	11-50	22
	“Total Security Systems is a West Australian owned company, operating for over 10 years.” Source: company website · checked Sep 5, 2026
10	AMA SecurityPartial evidence	Adelaide, AustraliaHQ checked Sep 5, 2026	51-200	21
	“AMA Security is a provider of strategically tailored security solutions for commercial, business & industry, Government and Defence clients.” Source: company website · checked Sep 5, 2026
11	Smokeshield SecurityPartial evidence	Springvale, AustraliaHQ checked Sep 5, 2026	11-50	20
	“Smokeshield Security – Protecting People, Premises & Profits for 40 Years Smokeshield Security is Australia’s market leader in advanced security solutions for commercial &…” Source: company website · checked Sep 5, 2026
12	Advanced Security GroupPartial evidence	Tamworth, AustraliaHQ checked Sep 5, 2026	11-50	19
	“Advanced Security Group (ASG) Protecting What Is Yours At Advanced Security Group, we pride ourselves on being a trusted partner in safeguarding homes, businesses, and communities…” Source: company website · checked Sep 5, 2026
13	Central Monitoring ServicesPartial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	11-50	18
	“At the heart of securing what matters most to you.” Source: company website · checked Sep 5, 2026
14	Safer Community SecurityPartial evidence	West Perth, AustraliaHQ checked Sep 5, 2026	51-200	14
	“Full suite of security services.” Source: company website · checked Sep 5, 2026
15	Castle SecurityStrong evidence	Malaga, AustraliaHQ checked Sep 5, 2026	11-50	14
	“With clients in the Commercial, Government industrial, and residential marketplace, Australia-wide, Castle Security has the experience and knowledge to help find a solution for…” Source: company website · checked Sep 5, 2026
16	Excell SecurityPartial evidence	Altona North, AustraliaHQ checked Sep 5, 2026	51-200	14
	“Excell Security is Melbourne's "one stop shop" for security, specialising in CCTV, alarms, monitoring and access control products and services, plus mobile patrols, security…” Source: company website · checked Sep 5, 2026
17	Allstate SecurityStrong evidence	Preston, AustraliaHQ checked Sep 5, 2026	1-10	14
	“Allstate Security provides residential, business and commercial security solutions across Melbourne.” Source: company website · checked Sep 5, 2026
18	Rechenberg Pty. LTDIndirect evidence	Bundaberg, AustraliaHQ checked Sep 5, 2026	11-50	13
	Source: company website · checked Sep 5, 2026
19	Urban Protection GroupPartial evidence	Sydney, AustraliaHQ checked Sep 5, 2026	51-200	13
	“Urban Protection Group is a trusted partner in delivering comprehensive security solutions.” Source: company website · checked Sep 5, 2026
20	Sectrol SecurityPartial evidence	Ballarat, AustraliaHQ checked Sep 5, 2026	51-200	12
	“Sectrol Security is a fully integrated security business based in Ballarat Victoria.” Source: company website · checked Sep 5, 2026
21	Instant Security SystemsPartial evidence	Seventeen Mile Rocks, AustraliaHQ checked Sep 5, 2026	51-200	12
	“Instant Security Systems is widely recognised as one of Australia’s leading & most trusted back-to-base security system providers and does hold the title for Queensland.” Source: company website · checked Sep 5, 2026
22	North Star SecurityPartial evidence	Gnangara, AustraliaHQ checked Sep 5, 2026	11-50	12
	“North Star Security is a locally owned and operated Perth business established in 1998.” Source: company website · checked Sep 5, 2026
23	First Security ResponsePartial evidence	Mawson Lakes, AustraliaHQ checked Sep 5, 2026	51-200	11
	“First Security Response (FSR Group Services) Adelaide, South Australia Phone: 1300 366 946 At FSR, we understand that our clients deserve a real security alternative-not just a…” Source: company website · checked Sep 5, 2026
24	AMG SecurityPartial evidence	Point Cook, AustraliaHQ checked Sep 5, 2026	51-200	11
	“Security Services Australia - Guards, Patrols, Events, Retail, Hospitality, Health Care, Government and Industry” Source: company website · checked Sep 5, 2026
25	Pride Services Group PTY LTDPartial evidence	Brisbane, AustraliaHQ checked Sep 5, 2026	51-200	10
	“Pride Services Group since 2007 has provided professional security services Queensland.” Source: company website · checked Sep 5, 2026

Showing 25 of 309 residential security companies based in Australia

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Residential security companies based in Australia at a glance

As of Sep 5, 2026

11-50Median size (employees)

SydneyLargest hub · 28 HQs

120Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

144

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

426

31–60

61–90

90–180

180+

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 residential security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Australia whose own description of what they do matches “residential security companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among residential 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 an evidence 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, 457 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 5, 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.

Residential security companies by metro

Residential security companies in Sydney28
Residential security companies in Melbourne25

Frequently asked

How many residential security companies are there based in Australia?

RevenueBase identified 309 residential 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?

Securitas Australia, headquartered in Preston, tops this list with the largest team on record.

Which city has the most residential security companies?

Sydney leads with 28 headquartered companies, followed by Melbourne (25) and Brisbane (15).

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 457 verified decision-maker contacts tracked across these 309 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 5, 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 SmartSearch, 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.