CREST Penetration Testing Providers
CREST Penetration Testing Methodology · Published by CREST International
The CREST penetration testing methodology is the professional standard defined by the Council of Registered Ethical Security Testers, an international accreditation body for the cybersecurity industry. CREST's methodology underpins both its organisational accreditation programme and its individual certification examinations (CPSA, CRT, CCT), ensuring that CREST-accredited companies and certified testers follow a consistent, high-quality approach to security testing. The CREST methodology covers the full engagement lifecycle from scoping and planning through testing, analysis, and reporting, with specific technical requirements for different testing disciplines including infrastructure, web application, and mobile application testing.
What distinguishes CREST's methodology is its integration with a rigorous accreditation framework — organisations must demonstrate that their testers follow this methodology and that quality management processes ensure consistent delivery. CREST accreditation requires companies to undergo regular assessments of their testing processes, data handling practices, and consultant competencies. This combination of technical methodology and organisational assurance makes CREST the benchmark for penetration testing quality in the UK, and increasingly across Europe, Asia-Pacific, and the Middle East.
CREST methodology is referenced by UK government frameworks including CHECK and is the foundation for financial sector testing frameworks including CBEST. Providers following CREST methodology deliver testing that meets the highest professional standards for scope, depth, and reporting quality.
Key Features
- —Integrated accreditation framework
- —Individual tester certification (CPSA/CRT/CCT)
- —Organisational quality assurance
- —Regular compliance assessments
- —Foundation for CHECK and CBEST
Best For
- —UK and European testing
- —Government-grade assessments
- —Financial services testing
- —Regulatory compliance
- —Quality-assured testing
Providers using CREST (37)
SECFORCE
Leading UK offensive security consultancy based in Canary Wharf, delivering CREST-accredited penetration testing and adversary simulation to organisations with the most demanding security requirements.
NCC Group
Global cybersecurity consultancy with CREST, CHECK, and CBEST accreditation, renowned for deep technical research and comprehensive penetration testing services.
Nettitude
CREST, CHECK, and CBEST accredited UK consultancy within Lloyd's Register, delivering premium penetration testing for government and critical infrastructure.
Pen Test Partners
The UK's largest independent security testing firm, renowned for IoT/OT research, CBEST red teaming, and CHECK/CREST-accredited penetration testing across all sectors.
PwC Cyber Security
Global Big Four professional services firm delivering CREST, CHECK, and CBEST-accredited penetration testing and red teaming services from London, serving the UK's largest enterprises and regulated organisations.
Dionach
Global enterprise cybersecurity consultancy founded in 1999 in Oxford, holding rare CREST STAR-FS accreditation and delivering penetration testing, red and purple teaming, and PCI QSA services across five international offices.
MDSec
Elite UK offensive security consultancy specialising in CBEST/STAR/TIBER red teaming, advanced adversary simulation, and CREST-accredited penetration testing for FTSE 100 clients.
Secarma
Manchester-based independent cybersecurity consultancy with over 20 years of experience delivering CREST and CHECK-accredited penetration testing, red teaming, and compliance certification services.
Cyberis
CREST and CHECK-accredited UK penetration testing consultancy with CBEST approval, specialising in infrastructure, application, and simulated attack assessments across the public and private sectors.
Aristi
CHECK and CREST-accredited Birmingham-based cyber security consultancy with over 15 years of experience delivering penetration testing, red teaming, and OT security assessments for government and private sector clients.
Bridewell
Fast-growing CREST and CHECK-accredited UK cybersecurity consultancy with deep expertise in critical national infrastructure sectors.
Pentest People
CREST and CHECK-accredited UK penetration testing firm with an innovative SecurePortal platform and transparent pricing for mid-market organizations.
CREST FAQs
What is the difference between CREST accreditation and certification?+
CREST accreditation applies to organisations — it certifies that the company follows CREST methodology and quality standards. CREST certification applies to individuals (CPSA, CRT, CCT) and validates their technical testing skills through practical examinations.
Is CREST accreditation recognised globally?+
Yes. CREST originated in the UK but now operates internationally with member organisations across Europe, Asia-Pacific, the Americas, and the Middle East. CREST accreditation is increasingly recognised as the global benchmark for pen testing quality.
How does CREST relate to CHECK?+
CHECK is a UK government scheme managed by the NCSC that authorises companies to test government systems. CHECK-approved companies must hold CREST accreditation as a prerequisite, making CREST the foundation for government-level security testing in the UK.