Company lists · Data refreshed September 2026
Top 24 IT security companies based in Australia
RevenueBase identified 692 company matches for IT security companies associated with Australia as of September 2026 and tracks 7,695 professional contacts across them, including 3,449 with verified work emails and 445 with mobile numbers. Sydney is the largest hub.
This list covers company matches for IT 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 4, 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 24 largest IT security companies based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 349 contacts → | ||||
Exact match “We are an Australian-owned, full-service ICT Solutions and Cyber Security provider with a locally based team of over 450 passionate Aussies.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 2 | 123 contacts → | ||||
Exact match “Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 3 | 122 contacts → | ||||
Exact match “Optic Security Group is a leading provider of converged security risk management solutions serving the needs of corporate, enterprise, and government clients across Australia and…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 4 | 122 contacts → | ||||
Exact match “Infotrust (ITS) is Australia’s leading cyber security and managed technology services provider listed on the ASX.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 5 | 113 contacts → | ||||
Exact match “Innovative Managed Services: Bridging Assets, Systems, and Security Welcome to Renew IT, your trusted partner in delivering comprehensive managed services, systems integration…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 6 | 105 contacts → | ||||
Exact match “ARA Security delivers turnkey security solutions to a number of industries across Australia.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 7 | 100 contacts → | ||||
Exact match “Sekuro is a cyber security and digital resiliency solutions provider that helps CIOs and CISOs take a strategic approach to cyber security risk mitigation and building business…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 8 | 98 contacts → | ||||
Exact match “We are your IT & Cyber Security partners.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 9 | 91 contacts → | ||||
Exact match “Australia’s cyber-first Managed Service Provider and true technology partner.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 10 | 87 contacts → | ||||
Exact match “Secure Agility is a Australian-based technology partner specialising in secure managed IT services for NSW government, enterprise and mid-market organisations.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 11 | 70 contacts → | ||||
Exact match “Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 12 | 63 contacts → | ||||
Exact match “Entersoft Security is an AI-enabled cybersecurity services firm helping modern enterprises build, ship, and operate secure digital products at scale.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 13 | 58 contacts → | ||||
Exact match “Australia’s leading developer and manufacturer of advanced cybersecurity technology, Red Piranha delivers next-generation cyber defence solutions designed to protect modern…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 14 | 58 contacts → | ||||
Exact match “Discover 3Columns, your premier destination for cutting-edge cyber security solutions.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 15 | 57 contacts → | ||||
Exact match “IPSec are specialists in information asset and cyber protection; security experts who know how to mitigate cyber risk by assisting in the protection of valuable intelligence…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 16 | 51 contacts → | ||||
Exact match “Welcome to Fortis Security, founded in September of 2013, Fortis has grown year on year with customer support.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 17 | 51 contacts → | ||||
Exact match “DeployPartners offer unique values and benefits that enable our clients and partners to differentiate on customer service.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 18 | 50 contacts → | ||||
Exact match “Our mission is to help our clients protect their assets, reputation, and customers from cyber threats, while also enabling them to embrace digital transformation and innovation…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 19 | 50 contacts → | ||||
Exact match “DIMIYA Tech is a Melbourne, Australia based- global Cybersecurity and IT services provider supporting organizations that require secure, scalable, and high-performance technology…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 20 | 45 contacts → | ||||
Exact match “Clarity in a complex world.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 21 | 42 contacts → | ||||
Exact match “Slipstream Cyber is a business of Interactive - Australia's leading technology solutions provider.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 22 | 42 contacts → | ||||
Exact match “FirstWave is a global cybersecurity technology company formed in 2004.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 23 | 42 contacts → | ||||
Exact match “Cythera’s cyber security solutions allow for the rapid deployment of Assessment, Protection, Monitoring & Response and Assurance technologies to meet the security needs of…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase | |||||
| 24 | 42 contacts → | ||||
Exact match “Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Recorded in the RevenueBase company graph · Sep 4, 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 “IT 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 24 of 692 IT security companies based in Australia
See the full list, filter by size, metro and specialty, and access 3,449 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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IT security companies based in Australia at a glance
As of Sep 4, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 “IT 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 3,449 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 4, 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.
IT security companies by metro
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 “IT security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many IT security companies are there based in Australia?
RevenueBase identified 692 company matches for IT 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?
Centorrino Technologies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most IT security companies?
Sydney leads with 143 company records, followed by Melbourne (124) and Brisbane (60).
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 3,449 professional contacts with verified work emails tracked across these 692 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 4, 2026.
Ready to reach these companies? Verified emails and direct dials for all 692 IT security companies based in Australia. Start with a free account, no credit card.
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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
- All company lists
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- Lists A-Z
- New lists
- IT security companies based in the United States
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- IT security companies based in Canada
- IT security companies based in France
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Company intelligence · public preview
Top 24 IT 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 692 matching company records for IT security companies based in Australia, with 7,695 tracked contacts and 3,449 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 4, 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 24 IT 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 |  Centorrino Technologiesct.com.auHQ: Coburg, AustraliaReported employees: 201-500 | Coburg, Australia | 201-500 | Exact match | 349 contacts → |
“We are an Australian-owned, full-service ICT Solutions and Cyber Security provider with a locally based team of over 450 passionate Aussies.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Triskele Labstriskelelabs.comHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 123 contacts → |
“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Optic Security Groupopticsecuritygroup.comHQ: Brisbane Airport, AustraliaReported employees: 201-500 | Brisbane Airport, Australia | 201-500 | Exact match | 122 contacts → |
“Optic Security Group is a leading provider of converged security risk management solutions serving the needs of corporate, enterprise, and government clients across Australia and…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Infotrustinfotrust.com.auHQ: Sydney, AustraliaReported employees: 201-500 | Sydney, Australia | 201-500 | Exact match | 122 contacts → |
“Infotrust (ITS) is Australia’s leading cyber security and managed technology services provider listed on the ASX.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Renew ITrenew-it.comHQ: Lane Cove West, AustraliaReported employees: 51-200 | Lane Cove West, Australia | 51-200 | Exact match | 113 contacts → |
“Innovative Managed Services: Bridging Assets, Systems, and Security Welcome to Renew IT, your trusted partner in delivering comprehensive managed services, systems integration…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  ARA Securitysecurity.aragroup.com.auHQ: Kingsgrove, AustraliaReported employees: 201-500 | Kingsgrove, Australia | 201-500 | Exact match | 105 contacts → |
“ARA Security delivers turnkey security solutions to a number of industries across Australia.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Sekurosekuro.ioHQ: AustraliaReported employees: 51-200 | Australia | 51-200 | Exact match | 100 contacts → |
“Sekuro is a cyber security and digital resiliency solutions provider that helps CIOs and CISOs take a strategic approach to cyber security risk mitigation and building business…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Ever Nimbleevernimble.comHQ: West Perth, AustraliaReported employees: 51-200 | West Perth, Australia | 51-200 | Exact match | 98 contacts → |
“We are your IT & Cyber Security partners.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Kaine Mathrick Techkmtech.com.auHQ: Port Melbourne, AustraliaReported employees: 51-200 | Port Melbourne, Australia | 51-200 | Exact match | 91 contacts → |
“Australia’s cyber-first Managed Service Provider and true technology partner.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Secure Agilitysecureagility.comHQ: Sydney, AustraliaReported employees: 51-200 | Sydney, Australia | 51-200 | Exact match | 87 contacts → |
“Secure Agility is a Australian-based technology partner specialising in secure managed IT services for NSW government, enterprise and mid-market organisations.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Northbridge Systemsnorth-bridge.com.auHQ: St Leonards, AustraliaReported employees: 51-200 | St Leonards, Australia | 51-200 | Exact match | 70 contacts → |
“Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Entersoft Securityentersoft.com.auHQ: Brisbane, AustraliaReported employees: 51-200 | Brisbane, Australia | 51-200 | Exact match | 63 contacts → |
“Entersoft Security is an AI-enabled cybersecurity services firm helping modern enterprises build, ship, and operate secure digital products at scale.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  RED Piranharedpiranha.netHQ: Perth, AustraliaReported employees: 51-200 | Perth, Australia | 51-200 | Exact match | 58 contacts → |
“Australia’s leading developer and manufacturer of advanced cybersecurity technology, Red Piranha delivers next-generation cyber defence solutions designed to protect modern…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  3columns3columns.ioHQ: AustraliaReported employees: 51-200 | Australia | 51-200 | Exact match | 58 contacts → |
“Discover 3Columns, your premier destination for cutting-edge cyber security solutions.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Ipsec PTY LTDipsec.com.auHQ: Cremorne, AustraliaReported employees: 11-50 | Cremorne, Australia | 11-50 | Exact match | 57 contacts → |
“IPSec are specialists in information asset and cyber protection; security experts who know how to mitigate cyber risk by assisting in the protection of valuable intelligence…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Fortis Securityfortissecurity.com.auHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 51 contacts → |
“Welcome to Fortis Security, founded in September of 2013, Fortis has grown year on year with customer support.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Deploypartnersdeploypartners.comHQ: North Sydney, AustraliaReported employees: 51-200 | North Sydney, Australia | 51-200 | Exact match | 51 contacts → |
“DeployPartners offer unique values and benefits that enable our clients and partners to differentiate on customer service.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Wipro Sheldeampion.com.auHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 50 contacts → |
“Our mission is to help our clients protect their assets, reputation, and customers from cyber threats, while also enabling them to embrace digital transformation and innovation…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Dimiya Techdimiyatech.com.auHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 50 contacts → |
“DIMIYA Tech is a Melbourne, Australia based- global Cybersecurity and IT services provider supporting organizations that require secure, scalable, and high-performance technology…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Emerging ITemergingit.com.auHQ: Mulgrave, AustraliaReported employees: 51-200 | Mulgrave, Australia | 51-200 | Exact match | 45 contacts → |
“Clarity in a complex world.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Slipstream Cyberslipstreamcyber.comHQ: Perth, AustraliaReported employees: 11-50 | Perth, Australia | 11-50 | Exact match | 42 contacts → |
“Slipstream Cyber is a business of Interactive - Australia's leading technology solutions provider.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Firstwave ASX FCTfirstwave.comHQ: North Sydney, AustraliaReported employees: 51-200 | North Sydney, Australia | 51-200 | Exact match | 42 contacts → |
“FirstWave is a global cybersecurity technology company formed in 2004.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cytheracythera.com.auHQ: Cbd, AustraliaReported employees: 11-50 | Cbd, Australia | 11-50 | Exact match | 42 contacts → |
“Cythera’s cyber security solutions allow for the rapid deployment of Assessment, Protection, Monitoring & Response and Assurance technologies to meet the security needs of…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Vectravectra-corp.comHQ: Adelaide, AustraliaReported employees: 51-200 | Adelaide, Australia | 51-200 | Exact match | 42 contacts → |
“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 692 company matches
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IT security companies: dataset insights
September 4, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
689 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 4, 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 ↗
IT security companies by metro
Questions about this company list
What does Exact match mean for IT 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 IT security companies did RevenueBase find based in Australia?
The saved snapshot records 692 matching company records, 7,695 tracked contacts and 3,449 verified emails. The public preview displays 24 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 4, 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
IT security companies by geography
- IT security companies based in the United States
- IT security companies based in the United Kingdom
- IT security companies based in Brazil
- IT security companies based in Canada
- IT security companies based in France
- IT security companies based in Germany
- IT security companies based in the Netherlands
- IT security companies based in Spain
- IT security companies based in Italy
- IT security companies based in Mexico
- IT security companies based in South Africa
- IT security companies based in Israel
Browse the directory
Cite this list
RevenueBase Data Team. Top 24 IT security companies based in Australia. Snapshot: September 4, 2026. https://revenuebase.ai/companies/it-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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT security companies based in the United States
- IT security companies based in the United Kingdom
- IT security companies based in Brazil
- IT security companies based in Canada
- IT security companies based in France
- IT security companies based in Germany
Company intelligence · public preview
Top 24 IT security companies based in Australia
RevenueBase records 692 matching company records for IT security companies based in Australia, with 7,695 tracked contacts and 3,449 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 4, 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 24 IT 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 | Centorrino Technologiesct.com.au HQ: Coburg, AustraliaReported employees: 201-500 | Coburg, Australia | 201-500 | Exact match | 349 contacts → |
“We are an Australian-owned, full-service ICT Solutions and Cyber Security provider with a locally based team of over 450 passionate Aussies.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Triskele Labstriskelelabs.com HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 123 contacts → |
“Triskele Labs is one of Australia’s fastest growing cybersecurity companies.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Optic Security Groupopticsecuritygroup.com HQ: Brisbane Airport, AustraliaReported employees: 201-500 | Brisbane Airport, Australia | 201-500 | Exact match | 122 contacts → |
“Optic Security Group is a leading provider of converged security risk management solutions serving the needs of corporate, enterprise, and government clients across Australia and…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Infotrustinfotrust.com.au HQ: Sydney, AustraliaReported employees: 201-500 | Sydney, Australia | 201-500 | Exact match | 122 contacts → |
“Infotrust (ITS) is Australia’s leading cyber security and managed technology services provider listed on the ASX.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Renew ITrenew-it.com HQ: Lane Cove West, AustraliaReported employees: 51-200 | Lane Cove West, Australia | 51-200 | Exact match | 113 contacts → |
“Innovative Managed Services: Bridging Assets, Systems, and Security Welcome to Renew IT, your trusted partner in delivering comprehensive managed services, systems integration…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | ARA Securitysecurity.aragroup.com.au HQ: Kingsgrove, AustraliaReported employees: 201-500 | Kingsgrove, Australia | 201-500 | Exact match | 105 contacts → |
“ARA Security delivers turnkey security solutions to a number of industries across Australia.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Sekurosekuro.io HQ: AustraliaReported employees: 51-200 | Australia | 51-200 | Exact match | 100 contacts → |
“Sekuro is a cyber security and digital resiliency solutions provider that helps CIOs and CISOs take a strategic approach to cyber security risk mitigation and building business…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Ever Nimbleevernimble.com HQ: West Perth, AustraliaReported employees: 51-200 | West Perth, Australia | 51-200 | Exact match | 98 contacts → |
“We are your IT & Cyber Security partners.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Kaine Mathrick Techkmtech.com.au HQ: Port Melbourne, AustraliaReported employees: 51-200 | Port Melbourne, Australia | 51-200 | Exact match | 91 contacts → |
“Australia’s cyber-first Managed Service Provider and true technology partner.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Secure Agilitysecureagility.com HQ: Sydney, AustraliaReported employees: 51-200 | Sydney, Australia | 51-200 | Exact match | 87 contacts → |
“Secure Agility is a Australian-based technology partner specialising in secure managed IT services for NSW government, enterprise and mid-market organisations.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Northbridge Systemsnorth-bridge.com.au HQ: St Leonards, AustraliaReported employees: 51-200 | St Leonards, Australia | 51-200 | Exact match | 70 contacts → |
“Northbridge is an Australian-owned cybersecurity services provider with more than 25 years’ experience delivering engineered, integrated and fully managed security services to…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Entersoft Securityentersoft.com.au HQ: Brisbane, AustraliaReported employees: 51-200 | Brisbane, Australia | 51-200 | Exact match | 63 contacts → |
“Entersoft Security is an AI-enabled cybersecurity services firm helping modern enterprises build, ship, and operate secure digital products at scale.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | RED Piranharedpiranha.net HQ: Perth, AustraliaReported employees: 51-200 | Perth, Australia | 51-200 | Exact match | 58 contacts → |
“Australia’s leading developer and manufacturer of advanced cybersecurity technology, Red Piranha delivers next-generation cyber defence solutions designed to protect modern…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 3columns3columns.io HQ: AustraliaReported employees: 51-200 | Australia | 51-200 | Exact match | 58 contacts → |
“Discover 3Columns, your premier destination for cutting-edge cyber security solutions.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ipsec PTY LTDipsec.com.au HQ: Cremorne, AustraliaReported employees: 11-50 | Cremorne, Australia | 11-50 | Exact match | 57 contacts → |
“IPSec are specialists in information asset and cyber protection; security experts who know how to mitigate cyber risk by assisting in the protection of valuable intelligence…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Fortis Securityfortissecurity.com.au HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 51 contacts → |
“Welcome to Fortis Security, founded in September of 2013, Fortis has grown year on year with customer support.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Deploypartnersdeploypartners.com HQ: North Sydney, AustraliaReported employees: 51-200 | North Sydney, Australia | 51-200 | Exact match | 51 contacts → |
“DeployPartners offer unique values and benefits that enable our clients and partners to differentiate on customer service.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Wipro Sheldeampion.com.au HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 50 contacts → |
“Our mission is to help our clients protect their assets, reputation, and customers from cyber threats, while also enabling them to embrace digital transformation and innovation…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Dimiya Techdimiyatech.com.au HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 50 contacts → |
“DIMIYA Tech is a Melbourne, Australia based- global Cybersecurity and IT services provider supporting organizations that require secure, scalable, and high-performance technology…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Emerging ITemergingit.com.au HQ: Mulgrave, AustraliaReported employees: 51-200 | Mulgrave, Australia | 51-200 | Exact match | 45 contacts → |
“Clarity in a complex world.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Slipstream Cyberslipstreamcyber.com HQ: Perth, AustraliaReported employees: 11-50 | Perth, Australia | 11-50 | Exact match | 42 contacts → |
“Slipstream Cyber is a business of Interactive - Australia's leading technology solutions provider.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Firstwave ASX FCTfirstwave.com HQ: North Sydney, AustraliaReported employees: 51-200 | North Sydney, Australia | 51-200 | Exact match | 42 contacts → |
“FirstWave is a global cybersecurity technology company formed in 2004.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cytheracythera.com.au HQ: Cbd, AustraliaReported employees: 11-50 | Cbd, Australia | 11-50 | Exact match | 42 contacts → |
“Cythera’s cyber security solutions allow for the rapid deployment of Assessment, Protection, Monitoring & Response and Assurance technologies to meet the security needs of…” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Vectravectra-corp.com HQ: Adelaide, AustraliaReported employees: 51-200 | Adelaide, Australia | 51-200 | Exact match | 42 contacts → |
“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Recorded description excerpt · September 4, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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IT security companies: dataset insights
September 4, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
689 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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 4, 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 ↗
IT security companies by metro
Questions about this company list
What does Exact match mean for IT 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 IT security companies did RevenueBase find based in Australia?
The saved snapshot records 692 matching company records, 7,695 tracked contacts and 3,449 verified emails. The public preview displays 24 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 4, 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.
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Cite this list
RevenueBase Data Team. Top 24 IT security companies based in Australia. Snapshot: September 4, 2026. https://revenuebase.ai/companies/it-security-companies/australia.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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