Company lists · Data refreshed September 2026

Top 25 Unarmed security guard services based in Australia

Name: Unarmed security guard services based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 309 companies tracked

RevenueBase identified 309 unarmed security guard services headquartered in Australia as of September 2026 and tracks 3,339 professional contacts across them, including 468 with verified work emails and 143 with mobile numbers. Sydney is the largest hub.

This list covers unarmed security guard services 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 6, 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 6, 2026 86% judged on-target in blind review

309Companies

3,339Contacts tracked

468Verified emails

143Mobile numbers

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The 25 largest unarmed security guard services based in Australia

Ranked by team size

Top 25 of 309 unarmed security guard services based in Australia, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to unarmed security guard services: 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	SNP Security	Partial evidence	West Ryde, AustraliaHQ checked Sep 6, 2026	1,001-5,000	510 contacts →
	“Founded in 1923, SNP is one of Australia’s leading security services providers with over 2,500 employees nationwide.” Source: company website · checked Sep 6, 2026
2	Securitas Australia	Partial evidence	Preston, AustraliaHQ checked Sep 6, 2026	10001+	228 contacts →
	“We know how to offer the most effective security to our customers.” Source: company website · checked Sep 6, 2026
3	ISEC	Partial evidence	Alexandria, AustraliaHQ checked Sep 6, 2026	201-500	87 contacts →
	“Established in 2001, ISEC is a leading provider of protective security, safety, risk management, and training services to the corporate, commercial and government sectors.” Source: company website · checked Sep 6, 2026
4	National Protective Services	Partial evidence	South Melbourne, AustraliaHQ checked Sep 6, 2026	1,001-5,000	82 contacts →
	“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: company website · checked Sep 6, 2026
5	Infront Security Services	Partial evidence	Brisbane, AustraliaHQ checked Sep 6, 2026	201-500	82 contacts →
	“Infront Security Services was established in 2002 to provide a fresh alternative to the Qld security marketplace, focussing predominately on event management and crowd control…” Source: company website · checked Sep 6, 2026
6	AG Security Group	Partial evidence	Adelaide, AustraliaHQ checked Sep 6, 2026	51-200	74 contacts →
	“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: company website · checked Sep 6, 2026
7	Constant	Partial evidence	Parramatta, AustraliaHQ checked Sep 6, 2026	501-1,000	67 contacts →
	“Constant, a wholly owned Australian company, was established in 2003 providing peace of mind for our clients to get on with what is important for them, by securing their valuable…” Source: company website · checked Sep 6, 2026
8	CPS Security Services	Partial evidence	Epping, AustraliaHQ checked Sep 6, 2026	51-200	65 contacts →
	“We are CPS Security Services, a 100% Australian-owned and operated company founded in 2006.” Source: company website · checked Sep 6, 2026
9	Exec Security	Strong evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	501-1,000	59 contacts →
	“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: company website · checked Sep 6, 2026
10	Guardian Venue Management International	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 2026	201-500	53 contacts →
	“Guardian Venue Management International is a proudly Australian-owned company, dedicated to delivering the highest standards of Security Solutions, Customized Protection, Traffic…” Source: company website · checked Sep 6, 2026
11	ACE Security Event Services	Partial evidence	Perth, AustraliaHQ checked Sep 6, 2026	501-1,000	49 contacts →
	“Ace Security + Event Services is a reputable Western Australian company providing Security Officers, Crowd controllers, Event management, and related services to individuals…” Source: company website · checked Sep 6, 2026
12	Vault Protective Security Services	Partial evidence	Subiaco, AustraliaHQ checked Sep 6, 2026	201-500	42 contacts →
	“Founded in 2011, Vault Protective Security Services is a Perth based company and leading provider of crowd control and security services.” Source: company website · checked Sep 6, 2026
13	Best Security PTY LTD	Partial evidence	Clayfield, AustraliaHQ checked Sep 6, 2026	201-500	41 contacts →
	“Security Company in Brisbane” Source: company website · checked Sep 6, 2026
14	Lima ONE Protection Group	Partial evidence	Adelaide, AustraliaHQ checked Sep 6, 2026	201-500	38 contacts →
	“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: company website · checked Sep 6, 2026
15	Idetect Group	Indirect evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	51-200	34 contacts →
	“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 6, 2026
16	Oscar Security Group PTY LTD	Partial evidence	Chipping Norton, AustraliaHQ checked Sep 6, 2026	51-200	28 contacts →
	“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 6, 2026
17	Dominance	Indirect evidence	Cheltenham, AustraliaHQ checked Sep 6, 2026	51-200	27 contacts →
	“This Australian owned and operated brand is directed at the helm by Nick Karas as the Managing Director and Michael McClaren as the Chief Financial Officer.” Source: company website · checked Sep 6, 2026
18	AMA Security	Partial evidence	Adelaide, AustraliaHQ checked Sep 6, 2026	51-200	21 contacts →
	“AMA Security is a provider of strategically tailored security solutions for commercial, business & industry, Government and Defence clients.” Source: company website · checked Sep 6, 2026
19	Baaz Security	Partial evidence	East Perth, AustraliaHQ checked Sep 6, 2026	201-500	20 contacts →
	“Baaz Security is a 100% Australian-owned security service provider with its head office in Perth and branch offices in Adelaide and Melbourne, offering nationwide protection…” Source: company website · checked Sep 6, 2026
20	Advanced Security Group	Partial evidence	Tamworth, AustraliaHQ checked Sep 6, 2026	11-50	19 contacts →
	“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 6, 2026
21	NSA Security	Indirect evidence	Brunswick, AustraliaHQ checked Sep 6, 2026	201-500	15 contacts →
	Source: company website · checked Sep 6, 2026
22	Safer Community Security	Partial evidence	West Perth, AustraliaHQ checked Sep 6, 2026	51-200	14 contacts →
	“Full suite of security services.” Source: company website · checked Sep 6, 2026
23	Castle Security	Partial evidence	Malaga, AustraliaHQ checked Sep 6, 2026	11-50	14 contacts →
	“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 6, 2026
24	Excell Security	Partial evidence	Altona North, AustraliaHQ checked Sep 6, 2026	51-200	14 contacts →
	“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 6, 2026
25	Urban Protection Group	Partial evidence	Sydney, AustraliaHQ checked Sep 6, 2026	51-200	13 contacts →
	“Urban Protection Group is a trusted partner in delivering comprehensive security solutions.” Source: company website · checked Sep 6, 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: unarmed security guard services. 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 unarmed security guard services.
Partial evidence: Its own public description names part of unarmed security guard services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name unarmed security guard services. 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 309 unarmed security guard services based in Australia

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Unarmed security guard services based in Australia at a glance

As of Sep 6, 2026

14.0%Verified-email coverage

4.3%Mobile-number coverage

10.8Average contacts per company

11-50Median size (employees)

12.3%Largest-city concentration · Sydney

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

4330–30

3431–60

061–90

090–180

1180+

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 unarmed security guard services, 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 “unarmed security guard services”. 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 unarmed security guard services), 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 unarmed security guard services, 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, 468 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 6, 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.

Unarmed security guard services by metro

Unarmed security guard services in Sydney38
Unarmed security guard services in Melbourne29

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 unarmed security guard services, 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 unarmed security guard services are there based in Australia?

RevenueBase identified 309 unarmed security guard services 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?

SNP Security, headquartered in West Ryde, tops this list with the largest team on record.

Which city has the most unarmed security guard services?

Sydney leads with 38 headquartered companies, followed by Melbourne (29) and Brisbane (14).

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 468 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 6, 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.