Company lists · Data refreshed September 2026
Top 25 Ot security companies based in Australia
RevenueBase identified 58 company matches for ot security companies associated with Australia as of September 2026 and tracks 826 professional contacts across them, including 244 with verified work emails. Melbourne is the largest hub.
This list covers company matches for ot security companies 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 September 27, 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.
The 25 largest ot security companies based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 136 contacts → | ||||
Exact match “SAFEgroup Automation (SGA) is a leading Australian provider of control system engineering services, specialising in delivering comprehensive solutions that extend from electrical…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 26 contacts → | ||||
Exact match “Minimise the risk of a cybersecurity incident.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 3 | 18 contacts → | ||||
Exact match “SIS Industrial Cyber Security protects what the world depends on but rarely sees.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 17 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 17 contacts → | ||||
Exact match “S5 System: The Safe, Secure, Smart Systematic Solution for Electrical, Instrumentation and Control Systems.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 6 | 14 contacts → | ||||
Exact match “Sentaris (a certified B Corporation) is an Australian security services provider specialising in cyber assurance and incident response services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 14 contacts → | ||||
Exact match “Facing the Complexities of Cybersecurity?” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 13 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 12 contacts → | ||||
Exact match “Forensic IT is a specialised cyber security firm with expertise in Digital Forensics and Incident Response (DFIR), and securing Industrial Control Systems (CIS).” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 9 contacts → | ||||
Exact match “Cyber Audit Team is a leading multi-disciplinary Australian cyber security company offering holistic 'end-to-end' solutions, ensuring that our clients' businesses are operating in…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 8 contacts → | ||||
Exact match “Solis is a leading provider of managed cyber security services and cyber incident response.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 8 contacts → | ||||
Exact match “Cyber Range, SOC designing and implementation, risk and security assessment.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 7 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 5 contacts → | ||||
Exact match “ITSEC Australia & New Zealand helps organisations build resilience across IT, OT, and IoT environments.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 5 contacts → | ||||
Exact match “Secure Alley is an IT and cybersecurity company built for the realities of today’s AI-driven digital landscape.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 4 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “eSecure was founded in 1993 and is a specialist provider of the full range of Information Security and Risk Management services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 4 contacts → | ||||
Exact match “Redwood Security is a young cyber security consulting company committed to doing more for its clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 3 contacts → | ||||
Exact match “Sapien Cyber is an Australian company providing class-leading cybersecurity and threat intelligence solutions for the protection of critical infrastructure.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 2 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 · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “Aurian is a leading provider of information security services in Australia.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 1 contacts → | ||||
Exact match “Proudly Australian-owned, InTec1 is a leading provider of professional security consulting services to the government, commercial and critical infrastructure sectors.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 1 contacts → | ||||
Exact match “In today's fast-paced digital landscape, maintaining a robust cybersecurity posture and optimizing business processes are essential for success.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “OT and ICS cybersecurity for Australian critical infrastructure.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “At Defend OT, our mission is simple and powerful:'To safeguard operations and secure your success.' This guiding principle drives everything we do as a leading provider of…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “ot security companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 58 ot security companies based in Australia
See the full list, filter by size, metro and specialty, and access 244 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Ot security companies based in Australia at a glance
As of Sep 27, 2026Companies by employee count
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 58 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 “ot security companies” 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 244 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 September 27, 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 “ot security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many ot security companies are there based in Australia?
RevenueBase identified 58 company matches for ot security companies associated with Australia as of September 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?
Safegroup Automation SGA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most ot security companies?
Melbourne leads with 16 company records, followed by Sydney (6) and Perth (5).
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 244 professional contacts with verified work emails tracked across these 58 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 September 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 58 ot security companies based in Australia. Start with a free account, no credit card.
Download this list →Related lists
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Browse the directory
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.
More company lists
Company intelligence · public preview
Top 25 ot security companies based in Australia
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 58 matching company records for ot security companies based in Australia, with 826 tracked contacts and 244 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 ot security companies based in Australia
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Safegroup Automation SGAautomation.safegroup.com.auHQ: Mayfield West, AustraliaReported employees: 51-200 | Mayfield West, Australia | 51-200 | Exact match | 136 contacts → |
“SAFEgroup Automation (SGA) is a leading Australian provider of control system engineering services, specialising in delivering comprehensive solutions that extend from electrical…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Datcom Clouddatcom.com.auHQ: Sydney, AustraliaReported employees: 11-50 | Sydney, Australia | 11-50 | Exact match | 26 contacts → |
“Minimise the risk of a cybersecurity incident.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  SIS Industrial Cyber Securitysis-ics.comHQ: South Yarra, AustraliaReported employees: 11-50 | South Yarra, Australia | 11-50 | Exact match | 18 contacts → |
“SIS Industrial Cyber Security protects what the world depends on but rarely sees.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Zynet PTY LTDzynet.com.auHQ: Tullamarine, AustraliaReported employees: 11-50 | Tullamarine, Australia | 11-50 | Exact match | 17 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  S5 System Safe Secure Smart Automations5system.comHQ: Perth, AustraliaReported employees: 11-50 | Perth, Australia | 11-50 | Exact match | 17 contacts → |
“S5 System: The Safe, Secure, Smart Systematic Solution for Electrical, Instrumentation and Control Systems.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Sentarissentaris.com.auHQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 14 contacts → |
“Sentaris (a certified B Corporation) is an Australian security services provider specialising in cyber assurance and incident response services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Spartans Securityspartanssec.comHQ: Cremorne, AustraliaReported employees: 11-50 | Cremorne, Australia | 11-50 | Exact match | 14 contacts → |
“Facing the Complexities of Cybersecurity?” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Cosivecosive.comHQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 13 contacts → |
“We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Forensic ITforensicit.com.auHQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 12 contacts → |
“Forensic IT is a specialised cyber security firm with expertise in Digital Forensics and Incident Response (DFIR), and securing Industrial Control Systems (CIS).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Cyber Audit Teamcyberauditteam.comHQ: South East Queensland, AustraliaReported employees: 11-50 | South East Queensland, Australia | 11-50 | Exact match | 9 contacts → |
“Cyber Audit Team is a leading multi-disciplinary Australian cyber security company offering holistic 'end-to-end' solutions, ensuring that our clients' businesses are operating in…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Solis Security Australiasolissecurity.comHQ: Bundall, AustraliaReported employees: 11-50 | Bundall, Australia | 11-50 | Exact match | 8 contacts → |
“Solis is a leading provider of managed cyber security services and cyber incident response.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Security Impossiblesecurityimpossible.comHQ: Melbourne, AustraliaReported employees: 1-10 | Melbourne, Australia | 1-10 | Exact match | 8 contacts → |
“Cyber Range, SOC designing and implementation, risk and security assessment.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Riot Solutionsorro.groupHQ: Brisbane, AustraliaReported employees: 51-200 | Brisbane, Australia | 51-200 | Exact match | 7 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Itsec Australia NEW Zealanditsec.com.auHQ: Melbourne, AustraliaReported employees: 201-500 | Melbourne, Australia | 201-500 | Exact match | 5 contacts → |
“ITSEC Australia & New Zealand helps organisations build resilience across IT, OT, and IoT environments.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Secure Alleythesecurealley.comHQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 5 contacts → |
“Secure Alley is an IT and cybersecurity company built for the realities of today’s AI-driven digital landscape.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Cyber Industrial Networks PTY LTDci-net.com.auHQ: Mayfield West, AustraliaReported employees: 1-10 | Mayfield West, Australia | 1-10 | Exact match | 4 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Esecure PTY LTDesecure.com.auHQ: Port Melbourne, AustraliaReported employees: 11-50 | Port Melbourne, Australia | 11-50 | Exact match | 4 contacts → |
“eSecure was founded in 1993 and is a specialist provider of the full range of Information Security and Risk Management services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Redwood Securityredwoodsecurity.com.auHQ: Brisbane City, AustraliaReported employees: 1-10 | Brisbane City, Australia | 1-10 | Exact match | 4 contacts → |
“Redwood Security is a young cyber security consulting company committed to doing more for its clients.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sapien Cybersapiencyber.com.auHQ: Joondalup, AustraliaReported employees: 11-50 | Joondalup, Australia | 11-50 | Exact match | 3 contacts → |
“Sapien Cyber is an Australian company providing class-leading cybersecurity and threat intelligence solutions for the protection of critical infrastructure.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Cybliminal PTY LTDcybliminal.comHQ: Newcastle, AustraliaReported employees: 1-10 | Newcastle, Australia | 1-10 | Exact match | 2 contacts → |
“Your cyber security defences occupy a liminal position at the threshold of your enterprise/cloud environments, critical business information systems, and IT assets.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Aurian Securityaurian.com.auHQ: Sydney, AustraliaReported employees: 1-10 | Sydney, Australia | 1-10 | Exact match | 2 contacts → |
“Aurian is a leading provider of information security services in Australia.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Intec1intec1.com.auHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 1 contacts → |
“Proudly Australian-owned, InTec1 is a leading provider of professional security consulting services to the government, commercial and critical infrastructure sectors.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Adam Woodland Contracting PTY LTDadamwoodland.comHQ: Brisbane, AustraliaReported employees: 1-10 | Brisbane, Australia | 1-10 | Exact match | 1 contacts → |
“In today's fast-paced digital landscape, maintaining a robust cybersecurity posture and optimizing business processes are essential for success.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Hennsol Technologieshennsol.com.auHQ: East Brisbane, AustraliaReported employees: 1-10 | East Brisbane, Australia | 1-10 | Exact match | 1 contacts → |
“OT and ICS cybersecurity for Australian critical infrastructure.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Defend OTdefendot.com.auHQ: Milton, AustraliaReported employees: 1-10 | Milton, Australia | 1-10 | Exact match | 1 contacts → |
“At Defend OT, our mission is simple and powerful:'To safeguard operations and secure your success.' This guiding principle drives everything we do as a leading provider of…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 58 company matches
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Ot security companies: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
58 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 58 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for ot security companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many ot security companies did RevenueBase find based in Australia?
The saved snapshot records 58 matching company records, 826 tracked contacts and 244 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Ot security companies by geography
- Ot security companies based in Belgium
- Ot security companies based in Brazil
- Ot security companies based in Canada
- Ot security companies based in France
- Ot security companies based in Germany
- Ot security companies based in India
- Ot security companies based in Israel
- Ot security companies based in Italy
- Ot security companies based in Mexico
- Ot security companies based in the Netherlands
- Ot security companies based in Spain
- Ot security companies based in the United Arab Emirates
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 ot security companies based in Australia. Snapshot: September 27, 2026. https://revenuebase.ai/companies/ot-security-companies/australia.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 ot security companies based in Australia
RevenueBase records 58 matching company records for ot security companies based in Australia, with 826 tracked contacts and 244 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 27, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 ot security companies based in Australia
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Safegroup Automation SGAautomation.safegroup.com.au HQ: Mayfield West, AustraliaReported employees: 51-200 | Mayfield West, Australia | 51-200 | Exact match | 136 contacts → |
“SAFEgroup Automation (SGA) is a leading Australian provider of control system engineering services, specialising in delivering comprehensive solutions that extend from electrical…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Datcom Clouddatcom.com.au HQ: Sydney, AustraliaReported employees: 11-50 | Sydney, Australia | 11-50 | Exact match | 26 contacts → |
“Minimise the risk of a cybersecurity incident.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | SIS Industrial Cyber Securitysis-ics.com HQ: South Yarra, AustraliaReported employees: 11-50 | South Yarra, Australia | 11-50 | Exact match | 18 contacts → |
“SIS Industrial Cyber Security protects what the world depends on but rarely sees.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Zynet PTY LTDzynet.com.au HQ: Tullamarine, AustraliaReported employees: 11-50 | Tullamarine, Australia | 11-50 | Exact match | 17 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | S5 System Safe Secure Smart Automations5system.com HQ: Perth, AustraliaReported employees: 11-50 | Perth, Australia | 11-50 | Exact match | 17 contacts → |
“S5 System: The Safe, Secure, Smart Systematic Solution for Electrical, Instrumentation and Control Systems.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Sentarissentaris.com.au HQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 14 contacts → |
“Sentaris (a certified B Corporation) is an Australian security services provider specialising in cyber assurance and incident response services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Spartans Securityspartanssec.com HQ: Cremorne, AustraliaReported employees: 11-50 | Cremorne, Australia | 11-50 | Exact match | 14 contacts → |
“Facing the Complexities of Cybersecurity?” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Cosivecosive.com HQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 13 contacts → |
“We help organisations get better at Security Operations and Cyber Threat Intelligence with specialised consulting, engineering, and managed security platforms.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Forensic ITforensicit.com.au HQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 12 contacts → |
“Forensic IT is a specialised cyber security firm with expertise in Digital Forensics and Incident Response (DFIR), and securing Industrial Control Systems (CIS).” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Cyber Audit Teamcyberauditteam.com HQ: South East Queensland, AustraliaReported employees: 11-50 | South East Queensland, Australia | 11-50 | Exact match | 9 contacts → |
“Cyber Audit Team is a leading multi-disciplinary Australian cyber security company offering holistic 'end-to-end' solutions, ensuring that our clients' businesses are operating in…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Solis Security Australiasolissecurity.com HQ: Bundall, AustraliaReported employees: 11-50 | Bundall, Australia | 11-50 | Exact match | 8 contacts → |
“Solis is a leading provider of managed cyber security services and cyber incident response.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Security Impossiblesecurityimpossible.com HQ: Melbourne, AustraliaReported employees: 1-10 | Melbourne, Australia | 1-10 | Exact match | 8 contacts → |
“Cyber Range, SOC designing and implementation, risk and security assessment.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Riot Solutionsorro.group HQ: Brisbane, AustraliaReported employees: 51-200 | Brisbane, Australia | 51-200 | Exact match | 7 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Itsec Australia NEW Zealanditsec.com.au HQ: Melbourne, AustraliaReported employees: 201-500 | Melbourne, Australia | 201-500 | Exact match | 5 contacts → |
“ITSEC Australia & New Zealand helps organisations build resilience across IT, OT, and IoT environments.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Secure Alleythesecurealley.com HQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 5 contacts → |
“Secure Alley is an IT and cybersecurity company built for the realities of today’s AI-driven digital landscape.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Cyber Industrial Networks PTY LTDci-net.com.au HQ: Mayfield West, AustraliaReported employees: 1-10 | Mayfield West, Australia | 1-10 | Exact match | 4 contacts → |
“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 description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Esecure PTY LTDesecure.com.au HQ: Port Melbourne, AustraliaReported employees: 11-50 | Port Melbourne, Australia | 11-50 | Exact match | 4 contacts → |
“eSecure was founded in 1993 and is a specialist provider of the full range of Information Security and Risk Management services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Redwood Securityredwoodsecurity.com.au HQ: Brisbane City, AustraliaReported employees: 1-10 | Brisbane City, Australia | 1-10 | Exact match | 4 contacts → |
“Redwood Security is a young cyber security consulting company committed to doing more for its clients.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sapien Cybersapiencyber.com.au HQ: Joondalup, AustraliaReported employees: 11-50 | Joondalup, Australia | 11-50 | Exact match | 3 contacts → |
“Sapien Cyber is an Australian company providing class-leading cybersecurity and threat intelligence solutions for the protection of critical infrastructure.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cybliminal PTY LTDcybliminal.com HQ: Newcastle, AustraliaReported employees: 1-10 | Newcastle, Australia | 1-10 | Exact match | 2 contacts → |
“Your cyber security defences occupy a liminal position at the threshold of your enterprise/cloud environments, critical business information systems, and IT assets.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Aurian Securityaurian.com.au HQ: Sydney, AustraliaReported employees: 1-10 | Sydney, Australia | 1-10 | Exact match | 2 contacts → |
“Aurian is a leading provider of information security services in Australia.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Intec1intec1.com.au HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 1 contacts → |
“Proudly Australian-owned, InTec1 is a leading provider of professional security consulting services to the government, commercial and critical infrastructure sectors.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Adam Woodland Contracting PTY LTDadamwoodland.com HQ: Brisbane, AustraliaReported employees: 1-10 | Brisbane, Australia | 1-10 | Exact match | 1 contacts → |
“In today's fast-paced digital landscape, maintaining a robust cybersecurity posture and optimizing business processes are essential for success.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Hennsol Technologieshennsol.com.au HQ: East Brisbane, AustraliaReported employees: 1-10 | East Brisbane, Australia | 1-10 | Exact match | 1 contacts → |
“OT and ICS cybersecurity for Australian critical infrastructure.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Defend OTdefendot.com.au HQ: Milton, AustraliaReported employees: 1-10 | Milton, Australia | 1-10 | Exact match | 1 contacts → |
“At Defend OT, our mission is simple and powerful:'To safeguard operations and secure your success.' This guiding principle drives everything we do as a leading provider of…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Ot security companies: dataset insights
September 27, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
58 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 58 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 27, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for ot security companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many ot security companies did RevenueBase find based in Australia?
The saved snapshot records 58 matching company records, 826 tracked contacts and 244 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 27, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Ot security companies by geography
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- Ot security companies based in India
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- Ot security companies based in Italy
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- Ot security companies based in the United Arab Emirates
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Cite this list
RevenueBase Data Team. Top 25 ot security companies based in Australia. Snapshot: September 27, 2026. https://revenuebase.ai/companies/ot-security-companies/australia.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗