Company lists · Data refreshed September 2026

Top 21 Monitoring companies based in Australia

RevenueBase identified 64 monitoring companies headquartered in Australia as of September 2026 and tracks 311 professional contacts across them, including 84 with verified work emails. Melbourne is the largest hub.

This list covers monitoring 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 20, 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 20, 2026 86% judged on-target in blind review
64Companies
311Contacts tracked
84Verified emails
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The 21 largest monitoring companies based in Australia

Ranked by team size
Top 21 of 64 monitoring companies based in Australia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to monitoring 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSydney, AustraliaHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“At the heart of securing what matters most to you.”

Source: RevenueBase Database · checked Sep 20, 2026
2Strong evidenceCoolaroo, AustraliaHQ checked Sep 20, 202611-5013 contacts →

Strong evidence

“Ajen Monitoring Systems Pty Ltd are leaders in the delivery of innovative solutions when it comes to the monitoring of offenders.”

Source: RevenueBase Database · checked Sep 20, 2026
3Strong evidenceCockburn Central, AustraliaHQ checked Sep 20, 202611-5012 contacts →

Strong evidence

“Compliance Monitoring formed in 2002 with the objective to offer a high quality independent environmental monitoring service to industry and government.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSeventeen Mile Rocks, AustraliaHQ checked Sep 20, 202651-20012 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 20, 2026
5Strong evidenceMurarrie, AustraliaHQ checked Sep 20, 202611-5011 contacts →

Strong evidence

“Texcel specialises in providing managed environmental monitoring services and equipment to ensure clients in the Mining, Construction and Infrastructure sectors meet their…”

Source: RevenueBase Database · checked Sep 20, 2026
6Strong evidenceBotany, AustraliaHQ checked Sep 20, 202611-5011 contacts →

Strong evidence

“Romteck Grid from Permaconn provides the reassurance of always-on fire alarm signalling and monitoring that you can depend on.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceSingleton, AustraliaHQ checked Sep 20, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceBrunswick, AustraliaHQ checked Sep 20, 20261-109 contacts →

Indirect evidence

“Ensuring best possible performance of your systems and networks provides extended life of systems and saves you money.”

Source: RevenueBase Database · checked Sep 20, 2026
9Strong evidenceWest Leederville, AustraliaHQ checked Sep 20, 20261-108 contacts →

Strong evidence

“At Monitel, we combine wireless IoT technology with traditional optical survey methods to provide a complete and customised monitoring solution to help our clients protect their…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceGeelong, AustraliaHQ checked Sep 20, 202611-508 contacts →

Indirect evidence

“At Barwon Security we pride ourselves on providing a high level of professional serviced to all our existing and new customers.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceDarlinghurst, AustraliaHQ checked Sep 20, 202611-507 contacts →

Indirect evidence

“Automated, Accurate and Reliable Solutions.”

Source: RevenueBase Database · checked Sep 20, 2026
12Strong evidencePerth, AustraliaHQ checked Sep 20, 20261-105 contacts →

Strong evidence

“MyMedia provides media monitoring for Western Australian businesses, local and state government departments and agencies.”

Source: RevenueBase Database · checked Sep 20, 2026
13Strong evidenceTaylors Beach, AustraliaHQ checked Sep 20, 20261-104 contacts →

Strong evidence

“Senquip exists to simplify remote monitoring.”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceMelbourne, AustraliaHQ checked Sep 20, 202611-504 contacts →

Strong evidence

“SSI Pacific is a corporation which provides world leading Monitoring and Security Intelligence solutions for intelligence and telecommunication sectors.”

Source: RevenueBase Database · checked Sep 20, 2026
15Strong evidenceMelbourne, AustraliaHQ checked Sep 20, 202611-503 contacts →

Strong evidence

“ACOST Security Services currently provides a wide range of security related functions, specialising in the provision of alarm monitoring, electronic security installations, mobile…”

Source: RevenueBase Database · checked Sep 20, 2026
16Strong evidenceMelbourne, AustraliaHQ checked Sep 20, 20261-103 contacts →

Strong evidence

“Templogger provides a bespoke solution for monitoring of temperature, humidity, liquid level, pressure, soil moisture, fuel and many more.”

Source: RevenueBase Database · checked Sep 20, 2026
17Strong evidenceMelbourne, AustraliaHQ checked Sep 20, 202611-502 contacts →

Strong evidence

“Established in 2004, HydroTerra has grown from an environmental monitoring equipment sales and rental company to today offering a broad suite of technology expertise services.”

Source: RevenueBase Database · checked Sep 20, 2026
18Strong evidenceBrisbane City, AustraliaHQ checked Sep 20, 20261-102 contacts →

Strong evidence

“Meta Business Systems is a company with a focus on continuous performance monitoring and analysis (CPMA™) and Revenue Protection/Prevention of Loss (RPPL™) for Government and…”

Source: RevenueBase Database · checked Sep 20, 2026
19Strong evidencePhillip, AustraliaHQ checked Sep 20, 202651-2001 contacts →

Strong evidence

“S1 Fire - Your Local Fire Monitoring Provider - Coming SOon.”

Source: RevenueBase Database · checked Sep 20, 2026
20Strong evidenceCroydon, AustraliaHQ checked Sep 20, 20261-101 contacts →

Strong evidence

Monitoring your servers, desktop computers, and other devices for known security issues is one of the most important parts of your overall computer security strategy.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceGoolwa, AustraliaHQ checked Sep 20, 20261-101 contacts →

Indirect evidence

“A monitored security system allows and offers peace of mind when you are not around, we can link fire detection devices to the system that will alert us in the event of a fire…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 21 of 64 monitoring companies based in Australia

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Monitoring companies based in Australia at a glance

As of Sep 20, 2026
27.0%Verified-email coverage
4.9Average contacts per company
11-50Median size (employees)
9.4%Largest-city concentration · Melbourne
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
29
51-200
5

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 64 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 monitoring 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 “monitoring 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 monitoring 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 monitoring 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, 84 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 20, 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 monitoring 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 monitoring companies are there based in Australia?

RevenueBase identified 64 monitoring 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?

Central Monitoring Services, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most monitoring companies?

Melbourne leads with 6 headquartered companies, followed by Sydney (4) and Adelaide (3).

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 84 verified decision-maker contacts tracked across these 64 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 20, 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.