Company lists · Data refreshed November 2026

Top 23 Operational technology (ot) cyber security services based in Australia

RevenueBase identified 80 company matches for operational technology (ot) cyber security services associated with Australia as of November 2026 and tracks 1,337 professional contacts across them, including 379 with verified work emails. Melbourne is the largest hub.

This list covers company matches for operational technology (ot) cyber security services associated with Australia, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
80Companies
1,337Contacts tracked
379Verified emails
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The 23 largest operational technology (ot) cyber security services based in Australia

Ranked by team size
Top 23 of 80 company matches for operational technology (ot) cyber security services based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMelbourne, AustraliaHQ recorded Nov 5, 202651-200121 contacts →

Exact match

“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchSydney, AustraliaHQ recorded Nov 5, 202611-5043 contacts →

Exact match

“Seccom Global - The Cyber Security Company Providing excellence in service to educate, connect and protect your business Founded in 2003, Seccom Global is recognised as a leader…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchBrisbane, AustraliaHQ recorded Nov 5, 2026n/a35 contacts →

Exact match

“Founded by Sohail Ershadi, a distinguished cybersecurity expert with over a decade of experience in the IT industry, CyberXcel has rapidly emerged as a leader in cybersecurity…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchSydney, AustraliaHQ recorded Nov 5, 202611-5027 contacts →

Exact match

“Secolve is Australia's dedicated Operational Technology (OT) cybersecurity partner, protecting the critical infrastructure that powers everyday life across energy, water…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchSouth Yarra, AustraliaHQ recorded Nov 5, 202611-5019 contacts →

Exact match

“SIS Industrial Cyber Security protects what the world depends on but rarely sees.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchSydney, AustraliaHQ recorded Nov 5, 202611-5018 contacts →

Exact match

“Minimise the risk of a cybersecurity incident.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchTullamarine, AustraliaHQ recorded Nov 5, 202611-5016 contacts →

Exact match

“Zynet is an Australian cyber security and IT services provider with more than 25 years of experience protecting organisations and keeping critical systems running.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMelbourne, AustraliaHQ recorded Nov 5, 202611-5016 contacts →

Exact match

“We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchCremorne, AustraliaHQ recorded Nov 5, 202611-5012 contacts →

Exact match

“Facing the Complexities of Cybersecurity?”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchCastle Hill, AustraliaHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“IT First Responder helps Australian businesses procure, manage, secure and govern their technology.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchMelbourne, AustraliaHQ recorded Nov 5, 20261-1011 contacts →

Exact match

“Cyber Range, SOC designing and implementation, risk and security assessment.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchNorman Park, AustraliaHQ recorded Nov 5, 20261-108 contacts →

Exact match

“ShadowSafe is a cyber security and IT services company based in Brisbane that protects Australian businesses from a wide range of digital threats including cyber attacks, data…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchMelbourne, AustraliaHQ recorded Nov 5, 202611-507 contacts →

Exact match

“ShadowLens is a cyber-security services and solutions provider that specialises in the synergy between users and data to protect digital information.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchBrisbane, AustraliaHQ recorded Nov 5, 202651-2007 contacts →

Exact match

“RIOT is a local, national provider of managed cyber security services across both IT and OT environments that differentiates itself by offering customers access to experts in the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchSydney, AustraliaHQ recorded Nov 5, 202611-507 contacts →

Exact match

“CyberHub was established with the aim of making Cyber Security more available to companies of all sizes.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchPerth, AustraliaHQ recorded Nov 5, 202611-505 contacts →

Exact match

“MANAGED IT AND SECURITY (MSP / MSSP) Fully managed technology and 24/7 security operations for growing businesses, organisations running real infrastructure and real risk…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchNorth Lakes, AustraliaHQ recorded Nov 5, 20261-105 contacts →

Exact match

“Goto Electrical Pty Ltd provides industry leading consultancy, design and integration services for operational technology to Critical Infrastructure clients.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchUltimo, AustraliaHQ recorded Nov 5, 20261-105 contacts →

Exact match

“AKSON Australia is a Sydney-based IT services provider delivering innovative and reliable solutions tailored to meet the needs of businesses across diverse industries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchSydney, AustraliaHQ recorded Nov 5, 20261-105 contacts →

Exact match

“Fort1: Comprehensive Cybersecurity Services based in Australia.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchBrisbane, AustraliaHQ recorded Nov 5, 20261-104 contacts →

Exact match

“Business Without Interruption™ Partnering with CyberGuru means you can benefit from our extensive experience, industry-leading tools and technologies, and our unwavering…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchMayfield West, AustraliaHQ recorded Nov 5, 20261-104 contacts →

Exact match

“Cyber Industrial Networks (Ci-Net) is an Australian-owned OT/IT and industrial networking business specialising in the design, deployment and security of critical operational…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchChatswood, AustraliaHQ recorded Nov 5, 202611-504 contacts →

Exact match

“GA Systems is a ISO27001:2022 certified, Australian-owned and operated cyber security service provider delivering comprehensive, intelligence-driven protection across public and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchNewcastle, AustraliaHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Your cyber security defences occupy a liminal position at the threshold of your enterprise/cloud environments, critical business information systems, and IT assets.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 23 of 80 operational technology (ot) cyber security services based in Australia

See the full list, filter by size, metro and specialty, and access 379 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Operational technology (ot) cyber security services based in Australia at a glance

As of Nov 5, 2026
28.3%Verified-email coverage
16.7Average contacts per company
1-10Median size (employees)
22.5%Largest-city concentration · Melbourne
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
25
51-200
5
201-500
1
1,001-5,000
1

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 80 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Australia whose business descriptions match “operational technology (ot) cyber security services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 379 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “operational technology (ot) cyber security services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many operational technology (ot) cyber security services are there based in Australia?

RevenueBase identified 80 company matches for operational technology (ot) cyber security services associated with Australia as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Triskele Labs tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most operational technology (ot) cyber security services?

Melbourne leads with 18 company records, followed by Sydney (16) and Perth (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 379 professional contacts with verified work emails tracked across these 80 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 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.