First, some background on CREST in the form of blatant plagiarism…
CREST – The Council for Registered Ethical Security Testers – exists to serve the needs of a global information security marketplace that increasingly requires the services of a regulated and professional security testing capability. They provide globally recognised, up to date certifications for organisations and individuals providing penetration testing services.
For organisations, CREST provides a provable validation of security testing methodologies and practices, aiding with client engagement and procurement processes, and proving that your company is committed to providing testing services to the highest standard.