Top 11 Cybersecurity Companies in Australia 2025
As cyber threats evolve and become more sophisticated, businesses and individuals must prioritize cybersecurity to safeguard sensitive data, financial assets, and critical infrastructure. Australia has emerged as a global hub for cybersecurity innovation, with several companies leading the way in providing cutting-edge security solutions. In this blog, we explore the top 11 cybersecurity companies in Australia that offer comprehensive services to combat modern cyber threats in 2025. 11 Best Cybersecurity Companies in Australia Here is the list of cybersecurity companies in Australia Qualysec Tesserent Airlock Digital CyberCX QuintessenceLabs FirstWave Huntsman Security Content Security Imperva (Ipswich, Australia) Check Point Software Technologies Secure Code Warrior 1. Qualysec Technologies A Leader in Penetration Testing & Cybersecurity Solutions. Founded in 2020, Qualysec has quickly established itself as a trusted name in the cybersecurity industry. Specializing in penetration testing (VAPT) and security assessments, Qualysec helps businesses proactively identify and mitigate vulnerabilities before cybercriminals can exploit them. Services Offered: Web Application Penetration Testing Mobile Application Penetration Testing API Security Testing Cloud Security Penetration Testing IoT Device Penetration Testing AI/ML System Penetration Testing Why Choose Qualysec? Expert Security Team: Offensive security experts and security researchers provide top-tier vulnerability assessments. Process-Based Approach: Qualysec follows industry-leading security frameworks such as OWASP, NIST, ISO 27001, and PCI DSS. Comprehensive Security Reports: The company delivers detailed, easy-to-understand reports with risk-based findings, proof-of-concept exploits, and remediation guidance. Post-Assessment Support: Qualysec ensures businesses understand and implement security improvements effectively. By regularly conducting penetration testing, businesses can identify security flaws and enhance their cybersecurity posture. Qualysec continues to be a preferred partner for Australian enterprises seeking advanced security solutions. Talk to our Cybersecurity Expert to discuss your specific needs and how we can help your business. Schedule a Call 2. Tesserent A renowned Australian cybersecurity business offering managed security services, cybersecurity consultancy, and threat intelligence solutions. Tesserent partners with clients from all sectors of business and all tiers of government as full-service cloud services and cybersecurity provider. Tesserent is a remarkable example of a domestic cybersecurity success story. Since its establishment in Melbourne, where it first focused on managed security services and received almost all of the funding from local investors, the company has developed into Australia’s top ASX-listed cybersecurity firm. Now that the company has offices throughout Australia and New Zealand, Tesserent works with clients to offer a broad range of cybersecurity services to managed security services. Tesserent provides complete, specialized solutions to prevent, detect, and mitigate potential cyberattacks in collaboration with over 1,200 mid-sized to large corporate, government, and critical infrastructure clients. We have extensive experience in converged and physical security, security advisory (GRC) and consulting, technical assurance and testing, cloud services, 24×7 managed services, and monitoring. 3. Airlock Digital Airlock Digital, an Australian cybersecurity firm, offers innovative endpoint protection solutions that let businesses quickly and flexibly list and execution control. Specializes in security solutions and application whitelisting to shield organizations from modern threats. Airlock Digital is one of the top commercial allow listing vendors because of its first-hand understanding of the operational issues in cybersecurity, extensive industry experience, and easy solution set. Airlock also has offices in APAC and North America. 4. CyberCX CyberCX is a multinational cyber security organization with offices in Australia, New Zealand, the United Kingdom, and the United States, as well as highly qualified consultants and other staff. With a team of more than 1,200 professionals, the company is a dependable partner to both commercial and public sector organizations, assisting them in building resilience in an environment where threats are becoming more sophisticated and hard to handle. CyberCX gives its customers the tools to safely seize possibilities in the digital economy through a full spectrum of cyber capabilities. In addition to consulting and advising work, they offer managed security services, cyber security training, governance, risk, and compliance management, incident response, penetration testing, and assurance. 5. QuintessenceLabs QuintessenceLabs, an Australian company, is a leader in quantum cybersecurity and is renowned for its innovative quantum-resilient data protection capabilities. With the largest data protection to secure your information from threats now and in the future, QuintessenceLabs is at the top of quantum cybersecurity. The company assists in creating a quantum-safe future for your business by providing services ranging from quantum key distribution to crypto-agile key management. The World Economic Forum has recognized the company for its work in quantum cybersecurity innovation. 6. FirstWave FirstWave is a publicly traded worldwide technology business founded in 2004 in Sydney, Australia. Best-in-class cybersecurity technologies are offered by FirstWave’s globally unique CyberCision platform, which enables FirstWave’s partners, including some of the biggest telcos and managed service providers in the world, to protect their customers from cyberattacks while quickly increasing cybersecurity service revenues at scale. Opmantek, a top provider of enterprise-grade network management, automation, and IT audit software, was bought by FirstWave in January 2022. Organizations in 178 countries use this software, including large clients like Microsoft, Telmex, Claro, NextLink, and NASA. For its telecommunications and service provider partners throughout the world, FirstWave can offer a complete end-to-end solution for network discovery, management, and cybersecurity due to the combination of CyberCision, Network Management Information System (NMIS), and Open-AudIT technologies. 7. Huntsman Security Huntsman Security has been developing advanced cybersecurity software since 1999 and provides support for some of the most private and secure environments in the world for intelligence, defense, and criminal justice. The company provides risk management, monitoring, and response solutions through the use of machine learning and high-speed stream processing to gather and contextualize security data in real time. The company has offices in Australia and the UK, as well as operations in Japan and the Philippines. Huntsman Security’s goal is to create security technology that will help governments and businesses digitally change into more effective operating models while still adhering to the ever-increasing demands of regulatory regulations. This security technology will measure, report, and decrease cyber risk. 8. Content Security Content Security is an Australian IT cyber security integration and consulting company. We devote
