Top Penetration Testing Companies in Australia (March 2026)
Why Cybersecurity Is No Longer Optional for Businesses
Australia’s cybersecurity landscape is rapidly evolving, and organisations across government, critical infrastructure, healthcare, aviation, and financial services are increasingly required to engage high-assurance penetration testing companies to validate their security posture.
This independently structured March 2026 ranking highlights the Top 10 Penetration Testing Companies in Australia, based on:
- CREST accreditation (ANZ & International)
- Penetration Testing quality & methodology
- Sector experience
- Technical capability (cloud, red team, AI/LLM, API)
- Compliance alignment
- Service maturity
- Retest Flexibility
- Fast testing turnaround
This list is essential for CISOs, CTOs, compliance leaders, and security teams evaluating credible offensive security providers.
Penetration Testing Requirements in Australia (March 2026)
Penetration testing is now required or expected under several key frameworks:
Penetration Testing Requirements in Australia (March 2026)
- ISO/IEC 27001:2022 – Controls A.5.23, A.8.8, A.8.9
- APRA CPS 234 (Banking, Super, Insurance)
- SOCI Act 2018 + 2021 Amendments (Critical Infrastructure)
- PCI DSS 4.0 (Payment & cardholder data systems)
- Australian Privacy Act 1988 (APP 11)
- ASD Essential Eight (Maturity Level 2+)
Selecting the right Penetration testing provider is critical for governance, compliance, and operational resilience.
Top 10 Penetration Testing Companies in Australia (March 2026)
1. Borderless CS – Tier-1 CREST-Accredited Offensive Security Provider
Borderless CS is a CREST ANZ & CREST International-accredited premium penetration testing company specialising in enterprise-grade, high-assurance offensive security. The firm delivers comprehensive penetration testing for:
- Government & critical infrastructure
- Financial services & banking
- Healthcare & medical systems
- Insurance, retail, automotive & logistics
- Aviation & airports
- SaaS, FinTech, HealthTech, and AI/LLM platforms
Why Borderless CS Is Ranked #1 and Premium Penetration Testing Company in Australia
- CREST ANZ & CREST International Accredited
- ISO/IEC 27001:2022 • ISO 9001 • ISO 45001 Certified
- GDPR and SOC 2 Type II aligned
- AI/LLM Pen Testing (OWASP LLM Top 10, MITRE ATLAS, AVID)
- Daily reporting + flexible free retesting
- Strong presence across Australia (local data sovereignty)
- Proven Penetration Testing delivery for: HFC Bank, BrimBank City Council, Birdeye Inc, 24/7 Ai Healthcare Receptionist, Circumcision Vasectomy Australia, Chiptech Limited, Domestic Violence Action Centre, RollCall Safety Solutions, Vision Investments Limited, Carpenters Groups, LICI Fiji, Ahimsa Global, Contract Probe, Freia, komplyAi, and more
- Borderless CS’s CEO Jayaprakash (JP), who also serves as a Board Director at CREST Australia & New Zealand (CREST ANZ), is reinforcing Borderless CS’s commitment to globally recognised offensive security standards, accreditation governance, and quality assurance across the cybersecurity industry.
Borderless CS Penetration Testing Service Catalogue
1. Web Application Penetration Testing
Advanced adversarial simulation against public-facing and internal applications.
- Authentication & session exploitation
- Business logic manipulation
- Multi-tenant isolation validation
- API & microservice attack paths
- Payment workflow security testing
- Sensitive data exposure validation
2. Mobile Application Penetration Testing (iOS & Android)
Aligned to OWASP MASVS and MASTG.
- Static and dynamic analysis
- Jailbreak / root detection bypass
- Secure storage & encryption validation
- Reverse engineering resistance
- Backend API exploitation
3. API Penetration Testing
Aligned to OWASP API Top 10.
- Broken object-level authorisation
- Authentication bypass
- Token misuse & privilege escalation
- Injection vulnerabilities
- Rate-limiting and abuse testing
4. Network Penetration Testing
External and internal adversarial simulation.
- Active Directory attack path analysis
- Credential harvesting
- Privilege escalation & lateral movement
- VPN and firewall bypass testing
- Network segmentation validation
5. Cloud Penetration Testing
Microsoft Azure | AWS | Google Cloud | Oracle Cloud
- IAM misconfiguration exploitation
- MFA & conditional access bypass
- Storage exposure validation
- Hybrid identity attack simulation
- Data exfiltration testing
6. AI / LLM Penetration Testing
Advanced adversarial testing for AI-enabled platforms.
Aligned to:
- OWASP Top 10 for LLM Applications (2025)
- MITRE ATLAS
- AI Vulnerability Database (AVID)
Testing includes:
- Prompt injection
- Jailbreak bypass
- Model extraction attempts
- Tenant data isolation validation
- Hallucination manipulation testing
7. Social Engineering Testing
Human-layer adversarial simulation.
- Spear-phishing campaigns
- Executive impersonation scenarios
- Credential harvesting
- Behavioural analytics
8. Wireless & IoT Penetration Testing
- Rogue access point detection
- Firmware vulnerability analysis
- Device-level exploitation
- Network isolation validation
9. Source Code Security Review (Secure SDLC / SAST / Manual Code Analysis)
- Deep manual review of source code to identify logic flaws, insecure patterns, and hidden vulnerabilities
- Detection of injection risks, insecure deserialisation, file handling issues, and cryptographic weaknesses
- Analysis aligned with OWASP ASVS, OWASP Code Review Guide, and SEI CERT Coding Standards
- Identification of authentication & session mismanagement flaws at the code level
- Security validation of API controllers, backend services, microservices, and data-processing logic
- Review of error handling, exception management, and logging practices for sensitive data exposure
- Identification of hardcoded secrets, API keys, credentials, tokens, and insecure configuration files
- Secure code recommendations with best-practice remediation guidance
2. KPMG – Cyber Security & Technology Risk
KPMG provides enterprise-scale penetration testing, secure code review, red teaming, and cloud security assessments across major corporate and government environments. Strong integration with audit, GRC, and risk transformation programs.
3. Deloitte Cyber
Deloitte delivers offensive security, adversary simulation, application penetration testing, and cloud security testing as part of large-scale transformation programs. Widely used by enterprise organisations and the government.
4. PwC Cybersecurity & Digital Trust
PwC’s penetration testing services focus on cloud, identity, and enterprise applications, supported by strong methodology and cross-disciplinary cyber advisory capability.
5. EY Cybersecurity
EY provides comprehensive penetration testing across web, mobile, APIs, cloud, and OT/ICS environments. Strong focus on regulated industries, including banking, insurance, and healthcare.
6. Rapid7
A global leader in vulnerability management and penetration testing services, Rapid7 specialises in adversary simulation, exploit development, and advanced application testing supported by its Insight platform ecosystem.
7. CyberCX
CyberCX is one of Australia’s largest sovereign cybersecurity firms, providing penetration testing, including network, application, cloud, and red team operations across all major industry sectors.
8. NetSPI
A global offensive security specialist with a strong reputation in continuous penetration testing (CPT), cloud security, and enterprise-scale offensive testing for large organisations.
9. IBM Security Australia
IBM delivers high-assurance penetration testing and red team services with global capability, strong cloud expertise, and enterprise-scale technical depth.
10. Bishop Fox
A leading offensive security firm known for advanced adversary simulation, continuous offensive testing (COS), and deep application security expertise.
How to Select the Right Penetration Testing Company
Not all cybersecurity providers are created equal. Some offer basic monitoring. Others deliver enterprise-grade protection.
Here’s what separates the top from the rest:
1. Accreditation & Assurance
- CREST ANZ / CREST International
- ISO/IEC 27001:2022 alignment
- GDPR and SOC 2 Type II
- Industry-specific expertise (AUSTRALIAN PRIVACY ACT, PCI DSS, HIPAA, ASD, SOCI)
2. Methodology & Standards
- OWASP Top 10 Web Application Security Risks
- OWASP Top 10 for LLM Applications (2025)
- OWASP API Top 10
- MITRE ATT&CK
- MITRE ATLAS (AI)
- AI Vulnerability Database (AVID)
- OWASP ASVS, OWASP MASVS/MASTG
- NIST SP 800-115
- OSSTMM
3. Reporting Quality
- Executive-level insights
- Technical detail with Evidence
- Prioritised remediation guidance
- CVSS v3.1/v4.0 risk scoring
4. Retesting Policy
- Ensure free flexible retesting is included to verify fixes.
5. Industry Experience
- Testing teams with sector-specific understanding deliver more accurate coverage.
Why CREST Accreditation Matters in Australia
CREST accreditation ensures the penetration testing provider adheres to globally recognised offensive security standards, technical competence, ethical frameworks, and repeatable methodologies.
Many sectors now require CREST-accredited testing:
- Government & critical infrastructure
- Banking, finance, and insurance
- Aviation & airports
- Healthcare & medical platforms
- SaaS / Digital platforms
Borderless CS is one of the few companies accredited under both CREST ANZ and CREST International.
Get a CREST-Aligned Penetration Testing Quote
Borderless CS offers:
- Same-day scoping
- Proposal in 24 hours
- Testing commencement within 48 hours
- Daily findings
- Free Flexible retesting
Contact Borderless CS:
- Book a Free Scoping Call
- Request a Proposal
- Download Borderless CS’s Penetration Testing Brochure
Build a Strong Cybersecurity Strategy Today
Cyber threats are evolving, targeting businesses of every size. Combining:
- Managed Security Services
- Penetration Testing
- SOC Monitoring
- Cloud Security
creates a resilient cybersecurity strategy. Protect your business, maintain regulatory compliance, and secure your future with Borderless CS.
Conclusion
Australia’s cybersecurity landscape in 2026 is competitive and evolving rapidly. While companies like Optus Cyber Security, IBM Security, Accenture Security, and Macquarie Telecom Cyber Security provide strong enterprise solutions, Borderless CS stands out as the top cybersecurity company in Australia for organisations seeking agile, CREST-accredited, and highly responsive protection.
Cybersecurity is no longer just IT support — it’s business survival.
The question isn’t whether you need protection. It’s who you trust to deliver it.
Trusted Cybersecurity Services for Australian Organisations
Borderless CS helps Australian organisations prevent cyber attacks, respond to incidents, and strengthen cyber resilience.
Whether you require a fully managed SOC, penetration testing, or cybersecurity compliance support, we deliver services that stand up to scrutiny.
No offshoring. No shortcuts. No ambiguity.
Book a Free Cyber Risk Assessment
Speak with an Australian cybersecurity consultant and gain a clear understanding of your organisation’s cyber risk posture.
Book a free, no-obligation cyber risk assessment and receive practical recommendations aligned to Australian cybersecurity frameworks.
📧 Email: [email protected]
🌐 Website: https://borderlesscs.com.au
Why Australian Businesses Trust Borderless CS
- Australian-based cybersecurity professionals
- SME-focused IT and security expertise
- Proactive threat monitoring
- Rapid incident response
- Transparent flat-rate pricing
Borderless CS is committed to delivering practical, real-world cybersecurity that protects businesses — not just systems.
Secure Your Business with Borderless CS
Cyber threats won’t wait. Neither should your protection.
🌐 Website: https://borderlesscs.com.au
📧 Email: [email protected]
This article was reviewed by cybersecurity professionals experienced in penetration testing, compliance frameworks, and Australian cyber security regulations.
Frequently Asked Questions
1. What is the best penetration testing company in Australia?
There is no single winner, but CREST-accredited companies like Borderless CS, KPMG, Deloitte, EY, and PWC are industry leaders for high-assurance penetration testing.
2. How often should penetration testing be done?
Most organisations in Australia perform:
- Annual penetration testing
- After major system changes
- Quarterly API testing for high-risk platforms
3. Is penetration testing mandatory?
For many sectors (banking, payments, critical infrastructure), yes. APS 234, SOCI, PCI DSS 4.0, and ISO 27001:2022 all require regular testing.
4. How much does penetration testing cost in Australia?
Typical ranges:
- Web App: $4,000 – $25,000
- API / SaaS platform: $6,000 – $40,000
- Mobile app: $6,000 – $20,000
- External/Internal Infra: $5,000 – $30,000
Borderless CS pricing: Transparent, fixed-price, CREST-certified.
5. Do small businesses need cybersecurity companies?
Absolutely. SMEs are frequently targeted because attackers assume weaker security. Professional cybersecurity significantly reduces risk.
