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Top Cybersecurity Companies in Sydney

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Looking for the best cybersecurity company in Sydney? UpCity compiles authentic reviews, company descriptions, project examples, and more into a list for you to review. Feel confident you're finding the top provider for your business.

UpCity offers objective, independent research and verified user reviews. We earn compensation from some providers who sign up for sponsored profiles. Learn more about our trusted providers.

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Provider's minimum per-project cost
Provider's minimum retainer cost
Industry Expertise
Businesses provider works with
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8 Provider(s)Last Updated: October 28, 2025
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Zazz

Sydney, NSW, AU + 1 More Location
5.0 | 1 review
Last reviewed on 9/8/2025
Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, and high-impact technology initiatives. We Solve complex enterprise challenges - legacy bottlenecks, technical debt, talent shortages, compliance risks, and system fragmentation.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$25,000 or more
Provider's minimum retainer cost
Retainer minimum
$5,000 or more, monthly
Provider updated information on 9/8/2025
Services Offered
Enterprise Resource Planning (ERP)Big Data & Business IntelligenceManaged Service ProvidersIT ServicesSystem IntegrationView All Services (32)
ProBonza's extensive range of services is designed to help everyone stay safe. Our cybersecurity solutions offer protection for all types an medium businesses, we provide VAPT , Internet security and Data protection services.
Businesses provider works with
Works with
Small
Provider's minimum per-project cost
Per-project minimum
$5,000 or more
Provider's minimum retainer cost
Retainer minimum
$1,500 or more, monthly
Provider updated information on 11/15/2022
Services Offered
Cybersecurity
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Janellis

Sydney, NSW, AU See Location
Janellis Consulting is a strategy and resilience consulting firm based in North Sydney, Australia. They work with large, complex organizations to help them execute strategy, build resilience, solve complex problems, and create enduring value. Services include project delivery, training programs, advisory, stakeholder engagement, change management, strategic project management, and building project sponsor capability.
Services Offered
Cybersecurity
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At AccessHQ, we believe that technology only exists to serve people, therefore all technology should have Human Quality. We integrate quality assurance and customer experience methods to make sure your technology meets customer expectations.
Services Offered
CybersecurityJava Development
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Are you thinking ahead about web application security? Got a new development that’s going live? Being asked by a client if your website has undergone a penetration test before? Is penetration testing a compliance requirement for you? Or is penetration testing a result of a recent incident? Let us hack you first.
Services Offered
Cybersecurity
2022 Study: 50% of SMBs Have a Cybersecurity Plan in Place | UpCity

This UpCity study presents insight from 600 U.S. small business owners and IT experts on their latest cybersecurity practices, data breach prevention, and disaster recovery measures in 2022.

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Privasec is your Leading Governance and Cyber Security Partner. The governance and cyber risk landscape is rapidly changing, fueled by significant growth and sophisticated global cyber-attacks
Services Offered
Cybersecurity
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Stickman

Sydney, NSW, AU See Location
We are Australia's leading cybersecurity consulting company that specialise in PCI DSS compliance and penetration testing to help companies achieve compliance. Visit the website to learn more!
Services Offered
Cybersecurity
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WeSecureCyber, Australia’s leading cyber security company is a team of expert White-Hat Hackers offering comprehensive cybersecurity services and solutions throughout Sydney, Melbourne, Perth and Brisbane.
Services Offered
Cybersecurity
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