Company lists · Data refreshed September 2026

Top 13 Private security firms based in Sydney, Australia

Name: Private security firms based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 62 companies tracked

RevenueBase identified 62 private security firms headquartered in Sydney, Australia as of September 2026 and tracks 413 professional contacts across them, including 34 with verified work emails and 12 with mobile numbers. Sydney is the largest hub.

This list covers private security firms headquartered in Sydney, 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 13, 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 13, 2026 86% judged on-target in blind review

62Companies

413Contacts tracked

34Verified emails

12Mobile numbers

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The 13 largest private security firms based in Sydney, Australia

Ranked by team size

Top 13 of 62 private security firms based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to private security firms: 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	Commander Security Services	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	n/a	66 contacts →
	Partial evidence “Commander Security Services is an Australian owned and operated company that has been created, and its foundations built on over 25 years’ experience in the security industry.” Source: RevenueBase Database · checked Sep 13, 2026
2	Guardian Venue Management International	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	201-500	53 contacts →
	Partial evidence “Guardian Venue Management International is a proudly Australian-owned company, dedicated to delivering the highest standards of Security Solutions, Customized Protection, Traffic…” Source: RevenueBase Database · checked Sep 13, 2026
3	Group 1 Security	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	201-500	25 contacts →
	Indirect evidence “FreeCall 1800 GROUP 1.” Source: RevenueBase Database · checked Sep 13, 2026
4	Nova Security Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	201-500	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 13, 2026
5	Morrisec	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	14 contacts →
	Partial evidence “Morrisec provides tailored security strategies and services that align with each company’s specific threat landscape, risk profile, and strategic goals.” Source: RevenueBase Database · checked Sep 13, 2026
6	Urban Protection Group	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	51-200	13 contacts →
	Partial evidence “Urban Protection Group is a trusted partner in delivering comprehensive security solutions.” Source: RevenueBase Database · checked Sep 13, 2026
7	Synergy Protection Agency	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	201-500	9 contacts →
	Indirect evidence “Since its conception, in New South Wales, Queensland, Victoria and now the ACT, Always Synergy has grown into a trusted, quality brand that our customers have come to rely upon…” Source: RevenueBase Database · checked Sep 13, 2026
8	Abacus Security Services PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	51-200	6 contacts →
	Partial evidence “Abacus is a leading provider of security officers around Australia and has over a decade's experience in specialised government, infrastructure and corporate security.” Source: RevenueBase Database · checked Sep 13, 2026
9	Virtus Risk, Training And Security Vrts	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	4 contacts →
	Partial evidence “VRTS is a unique risk management and performance development practice that specialises in assisting providers and end-users of protective security services to enhance the…” Source: RevenueBase Database · checked Sep 13, 2026
10	Pinnacle Protection	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	3 contacts →
	Partial evidence “Pinnacle Protection have been providing professional security and training services in Sydney, Illawarra, Wollongong, the Northern Beaches and the Newcastle region for over 20…” Source: RevenueBase Database · checked Sep 13, 2026
11	Jayde Consulting PTY LTD Threat Advisory	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “Jayde Consulting provides professional and discreet services to protect sensitive, confidential and commercially valuable information from electronic eavesdropping, surveillance…” Source: RevenueBase Database · checked Sep 13, 2026
12	Grc4	Indirect evidence	Sydney, AustraliaHQ checked Sep 13, 2026	1-10	2 contacts →
	Indirect evidence “GRC4 specialises in a range of services designed to fortify your business and streamline your operations.” Source: RevenueBase Database · checked Sep 13, 2026
13	Integra Security Solutions	Partial evidence	Sydney, AustraliaHQ checked Sep 13, 2026	11-50	1 contacts →
	Partial evidence “Sydney’s one-stop-shop for commercial security.” Source: RevenueBase Database · checked Sep 13, 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: private security firms. 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 private security firms.
Partial evidence: Its own public description names part of private security firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name private security firms. 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 13 of 62 private security firms based in Sydney, Australia

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Private security firms based in Sydney, Australia at a glance

As of Sep 13, 2026

8.2%Verified-email coverage

2.9%Mobile-number coverage

6.7Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.5d

290–30

531–60

061–90

090–180

0180+

Company record updated

Median 82.0d

00–30

10231–60

21261–90

7990–180

20180+

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 private security firms, 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 Sydney, Australia whose own description of what they do matches “private security firms”. 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 private security firms), 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 private security firms, and records with no verified work email. Companies headquartered outside Sydney 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, 34 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 13, 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.

Private security firms by metro in Australia

Private security firms in Sydney62
Private security firms in Melbourne56

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 private security firms, 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 private security firms are there based in Sydney, Australia?

RevenueBase identified 62 private security firms headquartered in Sydney, 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?

Commander Security Services, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most private security firms?

Sydney leads with 62 headquartered companies, followed by Melbourne (56) and Brisbane (20).

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 34 verified decision-maker contacts tracked across these 62 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 13, 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.