OWASP Penetration Testing Providers

Open Worldwide Application Security Project · Published by OWASP Foundation

OWASP is the most widely adopted framework for web application security testing worldwide. The OWASP Testing Guide provides a comprehensive methodology for identifying vulnerabilities in web applications, APIs, and mobile applications through systematic testing procedures. Originally published in 2004 and continuously updated by a global community of security professionals, the OWASP framework covers every aspect of application security from authentication and session management to input validation, cryptography, and business logic testing.

The OWASP Top 10, updated periodically, defines the most critical web application security risks and serves as an industry-standard awareness document referenced by compliance frameworks including PCI DSS, SOC 2, and ISO 27001. The OWASP Application Security Verification Standard (ASVS) provides a basis for testing technical security controls, while the OWASP Mobile Application Security Verification Standard (MASVS) extends this to mobile platforms.

Penetration testing providers that follow OWASP methodology ensure comprehensive coverage of known application-level attack vectors through a structured, repeatable testing process that is transparent and well-documented.

Key Features

  • OWASP Top 10 risk categories
  • Testing Guide with 90+ test cases
  • ASVS for application verification
  • MASVS for mobile applications
  • Community-driven and freely available

Best For

  • Web application penetration testing
  • API security testing
  • Mobile application testing
  • DevSecOps integration
  • Compliance-driven testing

Providers using OWASP (94)

94 providers
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
Dionach logo

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.

Oxford, United KingdomPremium
Web ApplicationNetworkRed Teaming+8
CRESTCHECKSTAR+3
Verified Apr 2026
Best for Mid-MarketBest for Financial Services
NetSPI logo

NetSPI

Penetration testing firm trusted by nine of the top ten US banks, with the Resolve platform for continuous attack surface management.

Minneapolis, Minnesota, United StatesPremium
Web ApplicationNetworkCloud+8
SOC 2ISO 27001CREST
Verified May 2026
Pen Test Partners logo

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.

Buckingham, United KingdomPremium
Web ApplicationNetworkMobile App+11
CRESTCHECKCBEST+5
Verified Apr 2026
PwC Cyber Security logo

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.

London, United KingdomEnterprise
Web ApplicationNetworkIoT+9
CRESTCHECKCBEST+3
Verified Apr 2026
MDSec logo

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.

Southam, United KingdomPremium
Web ApplicationNetworkCloud+7
CRESTCHECKCBEST+4
Verified Apr 2026
Trustwave logo

Trustwave

Global managed security provider with the elite SpiderLabs penetration testing team and deep PCI DSS compliance expertise.

Chicago, Illinois, United StatesEnterprise
Web ApplicationNetworkMobile App+7
PCI QSAISO 27001SOC 2+1
Verified Apr 2026
Secarma logo

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.

Manchester, United KingdomMid-Range
Web ApplicationNetworkMobile App+6
CRESTCHECKISO 27001+3
Verified Apr 2026
Cyberis logo

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.

Worcester, United KingdomMid-Range
Web ApplicationNetworkMobile App+5
CRESTCHECKCBEST+5
Verified Apr 2026
Aristi logo

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.

Birmingham, United KingdomMid-Range
Web ApplicationNetworkMobile App+8
CRESTCHECKISO 27001+3
Verified May 2026
Bridewell logo

Bridewell

Fast-growing CREST and CHECK-accredited UK cybersecurity consultancy with deep expertise in critical national infrastructure sectors.

Bristol, United KingdomMid-Range
Web ApplicationNetworkCloud+7
CRESTCHECKISO 27001+1
Verified Apr 2026
JUMPSEC logo

JUMPSEC

Full-service London-based cybersecurity consultancy with CREST, CHECK, and NCSC accreditations delivering offensive testing, managed detection, and strategic advisory services.

London, United KingdomMid-Range
Web ApplicationNetworkCloud+6
CRESTCHECKISO 27001+3
Verified May 2026

OWASP FAQs

What is the OWASP Top 10?+

The OWASP Top 10 is a regularly updated awareness document listing the most critical web application security risks. It includes Broken Access Control, Cryptographic Failures, Injection, Insecure Design, Security Misconfiguration, Vulnerable Components, Authentication Failures, Integrity Failures, Logging Failures, and SSRF.

Is OWASP a certification?+

OWASP itself is not a certification, it is an open-source project and methodology. However, many certifications (like GWAPT and OSWE) incorporate OWASP testing techniques, and compliance frameworks reference OWASP as a testing standard.

How often is the OWASP Top 10 updated?+

The OWASP Top 10 is typically updated every 3-4 years based on data analysis of real-world vulnerabilities. The most recent version was published in 2021, with updates expected based on evolving threat data.

Other Methodologies