Company lists · Data refreshed September 2026

Top 25 Construction security companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 218 companies tracked

RevenueBase identified 218 construction security companies headquartered in Australia as of September 2026 and tracks 1,691 professional contacts across them, including 322 with verified work emails. Sydney is the largest hub.

This list covers construction 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 21, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

218Companies

1,691Contacts tracked

322Verified emails

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The 25 largest construction security companies based in Australia

Ranked by team size

Top 25 of 218 construction security companies based in Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to construction 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	Securitas Australia	Partial evidence	Preston, AustraliaHQ checked Sep 21, 2026	10001+	228 contacts →
	Partial evidence “We know how to offer the most effective security to our customers.” Source: RevenueBase Database · checked Sep 21, 2026
2	National Protective Services	Partial evidence	South Melbourne, AustraliaHQ checked Sep 21, 2026	1,001-5,000	82 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 21, 2026
3	AG Security Group	Partial evidence	Adelaide, AustraliaHQ checked Sep 21, 2026	51-200	74 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 21, 2026
4	CPS Security Services	Partial evidence	Epping, AustraliaHQ checked Sep 21, 2026	51-200	65 contacts →
	Partial evidence “We are CPS Security Services, a 100% Australian-owned and operated company founded in 2006.” Source: RevenueBase Database · checked Sep 21, 2026
5	Best Security PTY LTD	Partial evidence	Clayfield, AustraliaHQ checked Sep 21, 2026	201-500	41 contacts →
	Partial evidence “Security Company in Brisbane” Source: RevenueBase Database · checked Sep 21, 2026
6	Lima ONE Protection Group	Partial evidence	Adelaide, AustraliaHQ checked Sep 21, 2026	201-500	38 contacts →
	Partial evidence “There are numerous factors that contribute to Lima One excelling in the security industry, we believe our attitude and approach to our clients and the professionalism of our hands…” Source: RevenueBase Database · checked Sep 21, 2026
7	Idetect Group	Partial evidence	Melbourne, AustraliaHQ checked Sep 21, 2026	51-200	34 contacts →
	Partial evidence “iDetect is proudly Australian owned and operated with a focus on supporting the needs of the building and construction industries throughout Australia.” Source: RevenueBase Database · checked Sep 21, 2026
8	Security1 S1	Partial evidence	Phillip, AustraliaHQ checked Sep 21, 2026	51-200	33 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
9	Oscar Security Group PTY LTD	Partial evidence	Chipping Norton, AustraliaHQ checked Sep 21, 2026	51-200	28 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
10	Group 1 Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	25 contacts →
	Indirect evidence “FreeCall 1800 GROUP 1.” Source: RevenueBase Database · checked Sep 21, 2026
11	AMA Security	Partial evidence	Adelaide, AustraliaHQ checked Sep 21, 2026	51-200	21 contacts →
	Partial evidence “AMA Security is a provider of strategically tailored security solutions for commercial, business & industry, Government and Defence clients.” Source: RevenueBase Database · checked Sep 21, 2026
12	Advanced Security Group	Partial evidence	Tamworth, AustraliaHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
13	Prime Protection Services NSW	Partial evidence	AustraliaHQ checked Sep 21, 2026	11-50	16 contacts →
	Partial evidence “Prime Protection Services can provide for all of your security needs.” Source: RevenueBase Database · checked Sep 21, 2026
14	Sitesec	Strong evidence	Molendinar, AustraliaHQ checked Sep 21, 2026	11-50	14 contacts →
	Strong evidence “SITESEC specialises in providing Australian builders and developers with the most advance temporary construction site security.” Source: RevenueBase Database · checked Sep 21, 2026
15	Castle Security	Partial evidence	Malaga, AustraliaHQ checked Sep 21, 2026	11-50	14 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
16	Excell Security	Partial evidence	Altona North, AustraliaHQ checked Sep 21, 2026	51-200	14 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
17	Genx Group Building And Technical Services	Partial evidence	Sunshine West, AustraliaHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “GenX Group has over 90 years of combined experience within the building and electronic security industries.” Source: RevenueBase Database · checked Sep 21, 2026
18	Urban Protection Group	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	13 contacts →
	Partial evidence “Urban Protection Group is a trusted partner in delivering comprehensive security solutions.” Source: RevenueBase Database · checked Sep 21, 2026
19	Mondiaux Security	Partial evidence	Fyshwick, AustraliaHQ checked Sep 21, 2026	51-200	11 contacts →
	Partial evidence “Mondiaux Security, your resident 'Industrial Strength Security' provider.” Source: RevenueBase Database · checked Sep 21, 2026
20	First Security Response	Partial evidence	Mawson Lakes, AustraliaHQ checked Sep 21, 2026	51-200	11 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 21, 2026
21	AMG Security	Partial evidence	Point Cook, AustraliaHQ checked Sep 21, 2026	51-200	11 contacts →
	Partial evidence “Security Services Australia - Guards, Patrols, Events, Retail, Hospitality, Health Care, Government and Industry” Source: RevenueBase Database · checked Sep 21, 2026
22	Jones XL	Partial evidence	Campbelltown, AustraliaHQ checked Sep 21, 2026	51-200	10 contacts →
	Partial evidence “Jones XL Pty Ltd as a provider of professional security guards and safety risk management services is one of the most widely recognised providers in Australia.” Source: RevenueBase Database · checked Sep 21, 2026
23	Pride Services Group PTY LTD	Partial evidence	Brisbane, AustraliaHQ checked Sep 21, 2026	51-200	10 contacts →
	Partial evidence “Pride Services Group since 2007 has provided professional security services Queensland.” Source: RevenueBase Database · checked Sep 21, 2026
24	Classique Security	Partial evidence	Perth, AustraliaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “Classique Security is Western Australia's most professional emerging security agency.” Source: RevenueBase Database · checked Sep 21, 2026
25	Helex Pty. LTD	Indirect evidence	Belmore, AustraliaHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “Helex Pty.” Source: RevenueBase Database · checked Sep 21, 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: construction 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 construction security companies.
Partial evidence: Its own public description names part of construction security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name construction 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 218 construction security companies based in Australia

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Construction security companies based in Australia at a glance

As of Sep 21, 2026

19.0%Verified-email coverage

7.8Average contacts per company

11-50Median size (employees)

10.6%Largest-city concentration · Sydney

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 218 companies.

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 construction 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 “construction 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 construction 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 construction 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, 322 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 21, 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.

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 construction 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 construction security companies are there based in Australia?

RevenueBase identified 218 construction 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 construction security companies?

Sydney leads with 23 headquartered companies, followed by Melbourne (21) and Brisbane (11).

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 322 verified decision-maker contacts tracked across these 218 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 21, 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.