Management

Ralph is CEO of Acertigo and brings more than 20 years of experience in IT Businesses, with expertise in the Payment Card Industry arena, IT security, and software development. He held several senior positions in consultancies, Payment Service Providers and IT companies. Ralph studied Computer Science and Business Administration at the University of Stuttgart / Germany. He is a Senior Advisor and specifically responsible for strategic customer projects and leads our sales and business development department.
ralph.woern@acertigo.com

Stephan is COO of Acertigo and acts as Lead Auditor and Senior Advisor within our Information Security Mandates. Stephan brings several years of experience in consulting market-leading businesses, with expertise in numerous topics of Information Security and Security Auditing. He received a master degree from University of Hamburg / Germany and wrote his PhD thesis in the field of mathematics. He is an IT-Security professional with sought after certifications from the leading international certification bodies.
stephan.engelke@acertigo.com