Best Network Pen Testing Companies in Australia

15 network penetration testing providers serve Australia clients. This list ranks them by accreditation depth, methodology, and editorial scoring. Look for providers with internal Active Directory expertise, lateral-movement experience, and credentialled offensive certifications (OSCP, OSEP, CRTP). Australian buyers should look for IRAP-assessed providers for government work and APRA CPS 234-aligned testers for regulated financial services.

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15 providers found
15 providers
Borderless CS logo

Borderless CS

Australian CREST ANZ and CREST International accredited pen testing firm focused on enterprise-grade, manual-first offensive security. Sydney and Brisbane offices.

Sydney, Australia
Web ApplicationNetworkMobile App+4
CRESTISO 27001
Verified Jun 2026
CyberCX logo

CyberCX

Australia and New Zealand's largest pure-play cybersecurity firm with offices in every major ANZ capital. CREST ANZ accredited and IRAP-listed for Australian Government testing.

Sydney, Australia
Web ApplicationNetworkMobile App+7
CRESTISO 27001SOC 2
Verified Jun 2026
Project Black logo

Project Black

Australian senior-led boutique pen testing firm with consultants in Sydney, Melbourne, and Brisbane. CREST CRT, OSCP, and OSCE certified testers.

Sydney, Australia
Web ApplicationNetworkMobile App+4
CRESTOSCP Employer
Verified Jun 2026
Sekuro logo

Sekuro

Australian CREST-accredited cybersecurity consultancy formed from the 2021 Privasec, Naviro, AvertRo, and Theta merger. Risk-led offensive security with strong APRA and Essential Eight programme work.

Sydney, Australia
Web ApplicationNetworkMobile App+6
CRESTISO 27001
Verified Jun 2026
The Missing Link logo

The Missing Link

Sydney-headquartered Australian cybersecurity firm founded in 1997, now part of Infosys. CREST-approved with OSCP, OSCE, and OSEE-certified testers.

Sydney, Australia
Web ApplicationNetworkMobile App+5
CRESTISO 27001OSCP Employer
Verified Jun 2026
Aon Cyber Solutions logo

Aon Cyber Solutions

Cybersecurity consulting division of global insurance leader Aon, uniquely combining penetration testing with cyber risk quantification and insurance expertise.

London, United KingdomEnterprise
Web ApplicationNetworkCloud+5
ISO 27001SOC 2
Verified Apr 2026
Bugcrowd logo

Bugcrowd

Crowdsourced bug bounty pioneer founded in 2012 by Casey Ellis, offering managed programs and crowd-powered penetration testing from hundreds of thousands of ethical hackers.

San Francisco, California, United StatesPremium
Web ApplicationAPIMobile App+3
SOC 2ISO 27001
Verified May 2026
CrowdStrike logo

CrowdStrike

Global cybersecurity leader leveraging world-class threat intelligence from the Falcon platform to deliver intelligence-led penetration testing and red teaming.

Austin, Texas, United StatesEnterprise
Red TeamingNetworkWeb Application+5
SOC 2ISO 27001
Verified Apr 2026
IR-Led PentestingGlobal Incident Responders
Kroll logo

Kroll

Global risk advisory firm with a 400+ person cyber practice. IR-led penetration testing that feeds active breach intelligence straight into test scoping.

New York, United StatesEnterprise
Web ApplicationNetworkCloud+9
PCI QSAISO 27001SOC 2
Verified Apr 2026
APT Intelligence LeaderTIBER-EU Specialist
Mandiant logo

Mandiant

World-renowned cybersecurity firm now part of Google Cloud, delivering threat intelligence-led penetration testing and red teaming informed by front-line incident response experience.

Reston, Virginia, United StatesEnterprise
Red TeamingPurple TeamingNetwork+6
SOC 2ISO 27001FedRAMP 3PAO
Verified Apr 2026
Best UK ProviderBest for Enterprise
NCC Group logo

NCC Group

Global cybersecurity consultancy with CREST, CHECK, and CBEST accreditation, renowned for deep technical research and comprehensive penetration testing services.

Manchester, United KingdomEnterprise
Web ApplicationNetworkMobile App+13
CRESTCHECKCBEST+5
Verified May 2026
CREST CertifiedAdversary Simulation
SECFORCE logo

SECFORCE

Canary Wharf-based adversary simulation and CBEST-aligned penetration testing consultancy, delivering CREST-accredited offensive security to UK financial services and other organisations with the most demanding requirements.

London, United KingdomPremium
Web ApplicationNetworkMobile App+10
CRESTCBESTISO 27001+2
Verified Jun 2026

Best Network Pen Testing Companies in Australia, FAQs

How do I find the best network pen testing provider in Australia?+

Start by shortlisting providers with verified network pen testing experience and accreditations that match your industry. This page lists 15 providers offering network penetration testing to Australia clients, ranked by accreditation depth, methodology, and editorial scoring. Compare scope, methodology, and pricing across at least three providers before committing.

What accreditations matter most for network pen testing in Australia?+

Australian buyers should look for IRAP-assessed providers for government work and APRA CPS 234-aligned testers for regulated financial services. On top of those, Look for providers with internal Active Directory expertise, lateral-movement experience, and credentialled offensive certifications (OSCP, OSEP, CRTP).

How much does network pen testing cost in Australia?+

Network Pen Testing engagements in Australia typically range from $5,000 to $50,000 depending on scope, complexity, and required accreditations. Boutique providers often start lower, while large consultancies and engagements requiring CREST, CBEST, or FedRAMP 3PAO accreditation sit at the higher end. Request fixed-scope quotes from at least three providers to benchmark fair market pricing.

How long does a network pen testing engagement take in Australia?+

Most network pen testing engagements in Australia run between 1 and 4 weeks of active testing, plus 1 to 2 weeks for reporting and remediation review. Larger or more regulated engagements (red team programmes, multi-environment cloud assessments) can extend to 6 to 12 weeks. Build buffer time into procurement schedules to allow for accredited tester availability.