Ernst & Young (EY) is a global leader in assurance, tax, transaction, and advisory services. With a presence in over 150 countries and approximately 300,000 employees worldwide, EY provides a wide range of professional services to help organizations address complex challenges and capitalize on opportunities in today's interconnected business landscape.

In the field of cybersecurity and information security management, EY offers specialized consultancy services, including expertise in ISO 27001 certification.