Company lists · Data refreshed October 2026
Top 24 Critical infrastructure protection contractors based in Australia
RevenueBase identified 155 company matches for critical infrastructure protection contractors associated with Australia as of October 2026 and tracks 1,875 professional contacts across them, including 593 with verified work emails. Melbourne is the largest hub.
This list covers company matches for critical infrastructure protection contractors 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 October 10, 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 critical infrastructure protection contractors based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 531 contacts → | ||||
Exact match “Founded in 1923, SNP is one of Australia’s leading security services providers with over 2,500 employees nationwide.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 2 | 195 contacts → | ||||
Exact match “For more than 130 years, we have stood alongside our community, protecting homes, families, businesses, and communities.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 3 | 65 contacts → | ||||
Exact match “Established in 2006, Sturdie has grown to become one of the most respected providers of high-quality electrical services and security technology in Australia and New Zealand.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 4 | 53 contacts → | ||||
Exact match “SCG specialises in providing independent security and communications engineering, and security threat and risk consultancy services, to clients operating in challenging security…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 5 | 53 contacts → | ||||
Exact match “Established in the year Securcom has 20 years’ experience as a specialist security solution provider.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 6 | 45 contacts → | ||||
Exact match “The Team at H3C Plus have been providing Security Solutions for 10 years and have over 50 years of combined expertise in the Electronic Security Industry.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 7 | 40 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 · Oct 10, 2026 · View company records in RevenueBase | |||||
| 8 | 34 contacts → | ||||
Exact match “SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 9 | 31 contacts → | ||||
Exact match “Critical Infrastructure Division are Engineers, tradespeople and technicians specialising in Critical Power, Data Centre and Server Room infrastructure, monitoring and controls.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 10 | 30 contacts → | ||||
Exact match “The Security Hub delivers a complete packaged security solution and a risk mitigation program to its clients.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 11 | 29 contacts → | ||||
Exact match “OpusV has been operating in the infrastructure design and support space for over 20 years.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 12 | 29 contacts → | ||||
Exact match “For over 25 years, Parasyn has been a leading software engineering expert, empowering critical infrastructure and industrial sectors to achieve operational excellence.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 13 | 20 contacts → | ||||
Exact match “Security Centric is a boutique specialist information security consulting and services organisation.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 14 | 18 contacts → | ||||
Exact match “High Risk Security Group (Asia-Pacific)(“HRSG”), is a highly respected and professional safety and security consultancy company.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 15 | 15 contacts → | ||||
Exact match “OMEN provides specialist security solutions across a broad range of industries, including aviation and other critical infrastructure.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 16 | 14 contacts → | ||||
Exact match “Prime Protection Services can provide for all of your security needs.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 17 | 12 contacts → | ||||
Exact match “Aegis9 is an Australian owned consultancy that specialises in providing tailored security solutions for both public and private sector clients, based on their specific needs.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 18 | 11 contacts → | ||||
Exact match “Information security and technology risk management consulting - at CyberRisk we design, implement and operate information security programs to allow you to reduce and manage your…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 19 | 11 contacts → | ||||
Exact match “Jones XL Pty Ltd as a provider of professional security guards and safety risk management services is one of the most widely recognised providers in Australia.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match “At Proton Security, we provide our clients with specialised advice and solutions unique to their business needs and risk profile.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “We exist to enable informed and robust decision-making by owners and operators of critical national infrastructure and capability.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 22 | 8 contacts → | ||||
Exact match “N7 Security provides unparalleled security services tailor-made according to your need.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “north is about helping clients tailor their cyber security to the challenges that are specific to their business.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase | |||||
| 24 | 8 contacts → | ||||
Exact match “Babylon Security is a leading provider of innovative security solutions, redefining how organisations protect their assets and ensure safety.” Recorded in the RevenueBase company graph · Oct 10, 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 “critical infrastructure protection contractors”. 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 155 critical infrastructure protection contractors based in Australia
See the full list, filter by size, metro and specialty, and access 593 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Critical infrastructure protection contractors based in Australia at a glance
As of Oct 10, 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 155 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 “critical infrastructure protection contractors” 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 593 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 October 10, 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.
Critical infrastructure protection contractors 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 “critical infrastructure protection contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many critical infrastructure protection contractors are there based in Australia?
RevenueBase identified 155 company matches for critical infrastructure protection contractors associated with Australia as of October 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?
SNP Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most critical infrastructure protection contractors?
Melbourne leads with 27 company records, followed by Sydney (24) and Brisbane (12).
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 593 professional contacts with verified work emails tracked across these 155 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 October 10, 2026.
Ready to reach these companies? Verified emails and direct dials for all 155 critical infrastructure protection contractors based in Australia. Start with a free account, no credit card.
Download this list →Related lists
Critical infrastructure protection contractors by geography
- Critical infrastructure protection contractors based in Melbourne, Australia
- Critical infrastructure protection contractors based in Sao Paulo, Brazil
- Critical infrastructure protection contractors based in Toronto, Canada
- Critical infrastructure protection contractors based in Paris, France
- Critical infrastructure protection contractors based in Stockholm, Sweden
- Critical infrastructure protection contractors based in Dubai, United Arab Emirates
- Critical infrastructure protection contractors based in London, United Kingdom
- Critical infrastructure protection contractors based in Houston, United States
- Critical infrastructure protection contractors based in New York, United States
- Critical infrastructure protection contractors based in Washington, United States
- Critical infrastructure protection contractors based in Belgium
- Critical infrastructure protection contractors based in Brazil
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
- Critical infrastructure protection contractors based in Melbourne, Australia
- Critical infrastructure protection contractors based in Sao Paulo, Brazil
- Critical infrastructure protection contractors based in Toronto, Canada
- Critical infrastructure protection contractors based in Paris, France
- Critical infrastructure protection contractors based in Stockholm, Sweden
- Critical infrastructure protection contractors based in Dubai, United Arab Emirates
Company intelligence · public preview
Top 24 critical infrastructure protection contractors 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 155 matching company records for critical infrastructure protection contractors based in Australia, with 1,875 tracked contacts and 593 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: October 10, 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 critical infrastructure protection contractors 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 |  SNP Securitysnpsecurity.com.auHQ: West Ryde, AustraliaReported employees: 1,001-5,000 | West Ryde, Australia | 1,001-5,000 | Exact match | 531 contacts → |
“Founded in 1923, SNP is one of Australia’s leading security services providers with over 2,500 employees nationwide.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  ADT Security Australiaadtsecurity.com.auHQ: Rydalmere, AustraliaReported employees: 501-1,000 | Rydalmere, Australia | 501-1,000 | Exact match | 195 contacts → |
“For more than 130 years, we have stood alongside our community, protecting homes, families, businesses, and communities.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Sturdiesturdie.com.auHQ: North Plympton, AustraliaReported employees: 51-200 | North Plympton, Australia | 51-200 | Exact match | 65 contacts → |
“Established in 2006, Sturdie has grown to become one of the most respected providers of high-quality electrical services and security technology in Australia and New Zealand.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Security Consulting Group PTY LTD SCGsecurityconsultinggroup.com.auHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 53 contacts → |
“SCG specialises in providing independent security and communications engineering, and security threat and risk consultancy services, to clients operating in challenging security…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Securcom PTY LTDsecurcom.com.auHQ: Brendale, AustraliaReported employees: 51-200 | Brendale, Australia | 51-200 | Exact match | 53 contacts → |
“Established in the year Securcom has 20 years’ experience as a specialist security solution provider.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  H3c Plush3cplus.com.auHQ: Bankstown, AustraliaReported employees: 51-200 | Bankstown, Australia | 51-200 | Exact match | 45 contacts → |
“The Team at H3C Plus have been providing Security Solutions for 10 years and have over 50 years of combined expertise in the Electronic Security Industry.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Vectravectra-corp.comHQ: Adelaide, AustraliaReported employees: 51-200 | Adelaide, Australia | 51-200 | Exact match | 40 contacts → |
“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  IPP Consulting PTY LTDipp.com.auHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 34 contacts → |
“SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Secure Bitssecurebits.com.au HQ: Symonston, AustraliaReported employees: 51-200 | Symonston, Australia | 51-200 | Exact match | 31 contacts → |
“Critical Infrastructure Division are Engineers, tradespeople and technicians specialising in Critical Power, Data Centre and Server Room infrastructure, monitoring and controls.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  The Security HUBthesecurityhub.com.auHQ: Melbourne, AustraliaReported employees: 201-500 | Melbourne, Australia | 201-500 | Exact match | 30 contacts → |
“The Security Hub delivers a complete packaged security solution and a risk mitigation program to its clients.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Opusv Tech Groupopusv.com.auHQ: Oakleigh, AustraliaReported employees: 11-50 | Oakleigh, Australia | 11-50 | Exact match | 29 contacts → |
“OpusV has been operating in the infrastructure design and support space for over 20 years.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Parasynparasyn.com.auHQ: Tingalpa, AustraliaReported employees: 11-50 | Tingalpa, Australia | 11-50 | Exact match | 29 contacts → |
“For over 25 years, Parasyn has been a leading software engineering expert, empowering critical infrastructure and industrial sectors to achieve operational excellence.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Security Centricsecuritycentric.com.auHQ: Sydney Cbd, AustraliaReported employees: 11-50 | Sydney Cbd, Australia | 11-50 | Exact match | 20 contacts → |
“Security Centric is a boutique specialist information security consulting and services organisation.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Hrsg High Risk Security Grouphrsg.com.auHQ: Darwin, AustraliaReported employees: 51-200 | Darwin, Australia | 51-200 | Exact match | 18 contacts → |
“High Risk Security Group (Asia-Pacific)(“HRSG”), is a highly respected and professional safety and security consultancy company.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Omen Security PTY LTDomensecurity.com.auHQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 15 contacts → |
“OMEN provides specialist security solutions across a broad range of industries, including aviation and other critical infrastructure.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Prime Protection Services NSWppsnsw.com.au HQ: AustraliaReported employees: 11-50 | Australia | 11-50 | Exact match | 14 contacts → |
“Prime Protection Services can provide for all of your security needs.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Aegis 9aegis9.com.auHQ: Canberra, AustraliaReported employees: 11-50 | Canberra, Australia | 11-50 | Exact match | 12 contacts → |
“Aegis9 is an Australian owned consultancy that specialises in providing tailored security solutions for both public and private sector clients, based on their specific needs.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cyberriskcyber-risk.com.auHQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 11 contacts → |
“Information security and technology risk management consulting - at CyberRisk we design, implement and operate information security programs to allow you to reduce and manage your…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Jones XLjonesxl.com.auHQ: Campbelltown, AustraliaReported employees: 51-200 | Campbelltown, Australia | 51-200 | Exact match | 11 contacts → |
“Jones XL Pty Ltd as a provider of professional security guards and safety risk management services is one of the most widely recognised providers in Australia.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Proton Securityprotonsecurity.com.auHQ: Bondi Junction, AustraliaReported employees: 11-50 | Bondi Junction, Australia | 11-50 | Exact match | 10 contacts → |
“At Proton Security, we provide our clients with specialised advice and solutions unique to their business needs and risk profile.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Decision Analysis Services DAS Australiadas-ltd.com.au HQ: Sydney, AustraliaReported employees: 1-10 | Sydney, Australia | 1-10 | Exact match | 9 contacts → |
“We exist to enable informed and robust decision-making by owners and operators of critical national infrastructure and capability.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  N7 Securityn7security.com.auHQ: Derrimut, AustraliaReported employees: 201-500 | Derrimut, Australia | 201-500 | Exact match | 8 contacts → |
“N7 Security provides unparalleled security services tailor-made according to your need.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | NORTHnorthsd.com.au HQ: AustraliaReported employees: 51-200 | Australia | 51-200 | Exact match | 8 contacts → |
“north is about helping clients tailor their cyber security to the challenges that are specific to their business.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Babylon Securitybabylonsecurity.com.auHQ: Parramatta, AustraliaReported employees: 51-200 | Parramatta, Australia | 51-200 | Exact match | 8 contacts → |
“Babylon Security is a leading provider of innovative security solutions, redefining how organisations protect their assets and ensure safety.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 155 company matches
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Critical infrastructure protection contractors: dataset insights
October 10, 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
155 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 155 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: October 10, 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 ↗
Critical infrastructure protection contractors by metro
Questions about this company list
What does Exact match mean for critical infrastructure protection contractors?
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 critical infrastructure protection contractors did RevenueBase find based in Australia?
The saved snapshot records 155 matching company records, 1,875 tracked contacts and 593 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: October 10, 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
Critical infrastructure protection contractors by geography
- Critical infrastructure protection contractors based in Melbourne, Australia
- Critical infrastructure protection contractors based in Sao Paulo, Brazil
- Critical infrastructure protection contractors based in Toronto, Canada
- Critical infrastructure protection contractors based in Paris, France
- Critical infrastructure protection contractors based in Stockholm, Sweden
- Critical infrastructure protection contractors based in Dubai, United Arab Emirates
- Critical infrastructure protection contractors based in London, United Kingdom
- Critical infrastructure protection contractors based in Houston, United States
- Critical infrastructure protection contractors based in New York, United States
- Critical infrastructure protection contractors based in Washington, United States
- Critical infrastructure protection contractors based in Belgium
- Critical infrastructure protection contractors based in Brazil
Cite this list
RevenueBase Data Team. Top 24 critical infrastructure protection contractors based in Australia. Snapshot: October 10, 2026. https://revenuebase.ai/companies/critical-infrastructure-protection-contractors/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
- Critical infrastructure protection contractors based in Melbourne, Australia
- Critical infrastructure protection contractors based in Sao Paulo, Brazil
- Critical infrastructure protection contractors based in Toronto, Canada
- Critical infrastructure protection contractors based in Paris, France
- Critical infrastructure protection contractors based in Stockholm, Sweden
- Critical infrastructure protection contractors based in Dubai, United Arab Emirates
Company intelligence · public preview
Top 24 critical infrastructure protection contractors based in Australia
RevenueBase records 155 matching company records for critical infrastructure protection contractors based in Australia, with 1,875 tracked contacts and 593 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: October 10, 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 critical infrastructure protection contractors 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 | SNP Securitysnpsecurity.com.au HQ: West Ryde, AustraliaReported employees: 1,001-5,000 | West Ryde, Australia | 1,001-5,000 | Exact match | 531 contacts → |
“Founded in 1923, SNP is one of Australia’s leading security services providers with over 2,500 employees nationwide.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | ADT Security Australiaadtsecurity.com.au HQ: Rydalmere, AustraliaReported employees: 501-1,000 | Rydalmere, Australia | 501-1,000 | Exact match | 195 contacts → |
“For more than 130 years, we have stood alongside our community, protecting homes, families, businesses, and communities.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Sturdiesturdie.com.au HQ: North Plympton, AustraliaReported employees: 51-200 | North Plympton, Australia | 51-200 | Exact match | 65 contacts → |
“Established in 2006, Sturdie has grown to become one of the most respected providers of high-quality electrical services and security technology in Australia and New Zealand.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Security Consulting Group PTY LTD SCGsecurityconsultinggroup.com.au HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 53 contacts → |
“SCG specialises in providing independent security and communications engineering, and security threat and risk consultancy services, to clients operating in challenging security…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Securcom PTY LTDsecurcom.com.au HQ: Brendale, AustraliaReported employees: 51-200 | Brendale, Australia | 51-200 | Exact match | 53 contacts → |
“Established in the year Securcom has 20 years’ experience as a specialist security solution provider.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | H3c Plush3cplus.com.au HQ: Bankstown, AustraliaReported employees: 51-200 | Bankstown, Australia | 51-200 | Exact match | 45 contacts → |
“The Team at H3C Plus have been providing Security Solutions for 10 years and have over 50 years of combined expertise in the Electronic Security Industry.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Vectravectra-corp.com HQ: Adelaide, AustraliaReported employees: 51-200 | Adelaide, Australia | 51-200 | Exact match | 40 contacts → |
“Vectra, an Ensign company, is Australia’s trusted partner for security consulting, risk management, compliance, and managed services.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | IPP Consulting PTY LTDipp.com.au HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 34 contacts → |
“SECURITY AND TECHNOLOGY EXPERTS ENGINEERING FOR A BETTER WORLD.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Secure Bitssecurebits.com.au HQ: Symonston, AustraliaReported employees: 51-200 | Symonston, Australia | 51-200 | Exact match | 31 contacts → |
“Critical Infrastructure Division are Engineers, tradespeople and technicians specialising in Critical Power, Data Centre and Server Room infrastructure, monitoring and controls.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | The Security HUBthesecurityhub.com.au HQ: Melbourne, AustraliaReported employees: 201-500 | Melbourne, Australia | 201-500 | Exact match | 30 contacts → |
“The Security Hub delivers a complete packaged security solution and a risk mitigation program to its clients.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Opusv Tech Groupopusv.com.au HQ: Oakleigh, AustraliaReported employees: 11-50 | Oakleigh, Australia | 11-50 | Exact match | 29 contacts → |
“OpusV has been operating in the infrastructure design and support space for over 20 years.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Parasynparasyn.com.au HQ: Tingalpa, AustraliaReported employees: 11-50 | Tingalpa, Australia | 11-50 | Exact match | 29 contacts → |
“For over 25 years, Parasyn has been a leading software engineering expert, empowering critical infrastructure and industrial sectors to achieve operational excellence.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Security Centricsecuritycentric.com.au HQ: Sydney Cbd, AustraliaReported employees: 11-50 | Sydney Cbd, Australia | 11-50 | Exact match | 20 contacts → |
“Security Centric is a boutique specialist information security consulting and services organisation.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hrsg High Risk Security Grouphrsg.com.au HQ: Darwin, AustraliaReported employees: 51-200 | Darwin, Australia | 51-200 | Exact match | 18 contacts → |
“High Risk Security Group (Asia-Pacific)(“HRSG”), is a highly respected and professional safety and security consultancy company.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Omen Security PTY LTDomensecurity.com.au HQ: Melbourne, AustraliaReported employees: 51-200 | Melbourne, Australia | 51-200 | Exact match | 15 contacts → |
“OMEN provides specialist security solutions across a broad range of industries, including aviation and other critical infrastructure.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Prime Protection Services NSWppsnsw.com.au HQ: AustraliaReported employees: 11-50 | Australia | 11-50 | Exact match | 14 contacts → |
“Prime Protection Services can provide for all of your security needs.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Aegis 9aegis9.com.au HQ: Canberra, AustraliaReported employees: 11-50 | Canberra, Australia | 11-50 | Exact match | 12 contacts → |
“Aegis9 is an Australian owned consultancy that specialises in providing tailored security solutions for both public and private sector clients, based on their specific needs.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cyberriskcyber-risk.com.au HQ: Melbourne, AustraliaReported employees: 11-50 | Melbourne, Australia | 11-50 | Exact match | 11 contacts → |
“Information security and technology risk management consulting - at CyberRisk we design, implement and operate information security programs to allow you to reduce and manage your…” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Jones XLjonesxl.com.au HQ: Campbelltown, AustraliaReported employees: 51-200 | Campbelltown, Australia | 51-200 | Exact match | 11 contacts → |
“Jones XL Pty Ltd as a provider of professional security guards and safety risk management services is one of the most widely recognised providers in Australia.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Proton Securityprotonsecurity.com.au HQ: Bondi Junction, AustraliaReported employees: 11-50 | Bondi Junction, Australia | 11-50 | Exact match | 10 contacts → |
“At Proton Security, we provide our clients with specialised advice and solutions unique to their business needs and risk profile.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Decision Analysis Services DAS Australiadas-ltd.com.au HQ: Sydney, AustraliaReported employees: 1-10 | Sydney, Australia | 1-10 | Exact match | 9 contacts → |
“We exist to enable informed and robust decision-making by owners and operators of critical national infrastructure and capability.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | N7 Securityn7security.com.au HQ: Derrimut, AustraliaReported employees: 201-500 | Derrimut, Australia | 201-500 | Exact match | 8 contacts → |
“N7 Security provides unparalleled security services tailor-made according to your need.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | NORTHnorthsd.com.au HQ: AustraliaReported employees: 51-200 | Australia | 51-200 | Exact match | 8 contacts → |
“north is about helping clients tailor their cyber security to the challenges that are specific to their business.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Babylon Securitybabylonsecurity.com.au HQ: Parramatta, AustraliaReported employees: 51-200 | Parramatta, Australia | 51-200 | Exact match | 8 contacts → |
“Babylon Security is a leading provider of innovative security solutions, redefining how organisations protect their assets and ensure safety.” Recorded description excerpt · October 10, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 155 company matches
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Critical infrastructure protection contractors: dataset insights
October 10, 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
155 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 155 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: October 10, 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 ↗
Critical infrastructure protection contractors by metro
Questions about this company list
What does Exact match mean for critical infrastructure protection contractors?
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 critical infrastructure protection contractors did RevenueBase find based in Australia?
The saved snapshot records 155 matching company records, 1,875 tracked contacts and 593 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: October 10, 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 critical infrastructure protection contractors based in Australia. Snapshot: October 10, 2026. https://revenuebase.ai/companies/critical-infrastructure-protection-contractors/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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